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molecular evolution of glycogen phosphorylase and aminotransferases of vertebrate muscle tissue.comparative biochemical studies on phosphorylase b, aspartate aminotransferase and alanine aminotransferase in muscles of various vertebrates (the lamprey lampetra fluviatilis, dogfish squalus acanthias, rays dasyatis pastinaca and raja clavata, teleosts scorpaena porcus, spicara smaris, esox lucius, tinca tinca, abramis brama, lucioperca lucioperca, cyprinus carpio, salmo ischchan, frog rana temporaria, tortoise testudo horsfieldi) revealed some peculiarties of their molecular evolution. it was ...197717251
organochlorine pesticide residues in animals of tasmania, australia-1975-77.animals taken in tasmania including duck (anas superciliosa), eel (anguilla australis), english perch (perca fluviatilis), white-faced heron (ardea pacifica), brown trout (salmo trutta), european starling (strunus vulgaris), cat (felis cattus), cormorant (phalacrocorax sp.), mutton bird (puffinus tenuirostris), tasmanian devil (sarcophilus harrisii), rainbow trout (salmo gairdnerii), tasmanian raven (corvus mellori), tench (tinca tinca), and quail (coturnix sp.) were sampled for p,p'-dde, pp,p'- ...1979537866
sandwich immunoassay for determination of vitellogenin in golden grey mullet (liza aurata) serum as a field exposure biomarker.vitellogenin (vtg) is a protein produced in the liver of oviparous animals in response to oestrogens. abnormal production of vtg by males, therefore, is used as a biological indicator of exposure to xeno-oestrogens. in this study, a sandwich-elisa for measuring vtg in liza aurata (golden grey mullet) was developed and validated. plasma vtg was purified from 17beta-oestradiol-injected immature individuals of mullet, by size-exclusion and ion-exchange chromatography. polyclonal antibodies against ...200515756602
determination of plasma melatonin levels by enzyme-linked immunosorbent assay (eia) in turbot (scophtalmus maximus l.) and tench (tinca tinca l.).an enzymoimmunoassay (eia) kit for plasma melatonin (mlt) measurements was employed in tench (tinca tinca) and in turbot (scophtalmus maximus). tench and turbot plasma samples were purified with a c18 reversed phase extraction columns because this kit is designed for human serum measurements. the lowest detection limit of the technique was 11.48 pg/well with a sensitivity at 50% binding of 100 pg/well. intra-assay and inter-assay cv (%) were always less than 5% (n=8), and 9% (n=6) in tench plasm ...199910731086
the effects of mycoplasma mobile 163 k on the ciliary epithelium of tracheal organ cultures.mycoplasma (m.) mobile 163 k, isolated from the gills of a tench (tinca tinca l.), was examined for cytotoxic capacities using tracheal organ cultures from gnotobiotic rats and gnotobiotic piglets in ph-controlled experiments (ph 7.2-7.6). the mycoplasmas caused an inhibition of the ciliary activity at incubation temperatures of 20, 25 and 30 degrees c. the strongest cilia stopping effect was observed at an incubation temperature of 25 degrees c, the optimal growth temperature of the mycoplasmas ...19883218393
effect of necrogenic doses of isoproterenol on the heart of the tench (tinca tinca--osteoichthyes), the frog (rana temporaria--anura) and the pigeon (columba livia--aves). 19714261967
in vitro study of the phagocytic processes in splenic granulocytes of the tench (tinca tinca, l.).the different stages of the phagocytic process by splenic granulocytes of tinca tinca were studied. adherence capacity to both endothelium and tissue substrate, mobility rate, the phagocytosis capacity for both cells (candida albicans) and inert particles (latex beads), candidicide power, and capacity of digestion measured by nitroblue tetrazolium (nbt) reduction were evaluated in splenic granulocytes of healthy adult tench. the capacity of adherence to nylon fiber was possessed by 51% of the gr ...19921335424
comparative study on the accumulation of heavy metals in different organs of tench (tinca tinca l. 1758) and plerocercoids of its endoparasite ligula intestinalis.concentrations of heavy metals (cu, fe, zn, mn, cr, pb and cd) in some organs of tench and tissues of its parasite found in kovada lake (turkey) were analyzed using atomic absorption spectrophotometry and subsequently compared with the data from sediments and water. only cu, fe, zn and mn were detected in water, sediment, plerocercoids of ligula intestinalis and fish samples, while levels of cr, pb and cd were below the detection limits. four elements were found at higher concentrations in the p ...200515986243
intraspecific polymorphism of hemoglobin in tinca tinca. 19685658131
[leeches (hirudinea: piscicolidae and glossiphonidae) infecting lake fish in the ukiel, warniak and wulpińskie. preliminary study].the aim of the study was to determine leeches found on the lake fishes. from the lake ukiel, 213 roaches (r. rutilus) and from the lake wulpińskie 202 were examined between nov. 1988 and dec. 1999. from the warniak 258 roaches and 9 tenches (tinca tinca) were examined between may 1998 and nov. 1999. warniak on roach (r. rutilus) 4 piscicola geometra and hemiclepis marginata on the fish body were found, tench (tinca tinca) p. geometra were found on gills. ukiel on roach piscicola pojmanskae on gi ...200016886362
fish status survey of nordic lakes: effects of acidification, eutrophication and stocking activity on present fish species composition.the status of fish populations in 3821 lakes in norway, sweden and finland was assessed in 1995-1997. the survey lakes were chosen by stratified random sampling from all (126 482) fennoscandian lakes > or = 0.04 km2. the water chemistry of the lakes was analyzed and information on fish status was obtained by a postal inquiry. fish population losses were most frequent in the most highly acidified region of southern norway and least common in eastern fennoscandia. according to the inquiry results, ...200312733793
[helminths fauna of fishes in the mała panew river drainage basin].a parasitological investigation was made at 420 fishes from 10 species: perca fluviatilis l., gymnocephalus cernuus (l.), gobio gobio (l.), tinca tinca (l.), leuciscus idus (l), noemacheilus barbatulus (l.), lota lota (l.), leucaspisus delineatus (heckell 843), blicca biorkna (l.) and rhodeus sericeus amarus (bloch 1782). the fishes were caught over one year period (1995-1996) in the mała panew river drainage basin (south poland). in examined fishes the following parasite species were found: dip ...200016886354
isolation of a rhabdovirus during outbreaks of disease in cyprinid fish species at fishery sites in england.a virus was isolated during disease outbreaks in bream abramis brama, tench tinca tinca, roach rutilis rutilis and crucian carp carassius carassius populations at 6 fishery sites in england in 1999. mortalities at the sites were primarily among recently introduced fish and the predominant fish species affected was bream. the bream stocked at 5 of the 6 english fishery sites were found to have originated from the river bann, northern ireland. most fish presented few consistent external signs of d ...200314735920
heavy metal profile in five fish species included in human diet, domiciled in the end flow of river neretva (croatia).concentration of three heavy metals (mercury (hg), lead, (pb), and cadmium, (cd)) and one metalloid (arsenic [as]), were determined by atomic absorption spectrophotometry in five tissues (muscles, liver, kidneys, gills, and gonads) of five fish species (carp-cyprinus carpio, tench-tinca tinca, sval-leuciscus svallizi, gray mullet-mugil cephalus, and eel-anguilla anguilla) taken out from the end fiow (last 20 km) of the river neretva, south croatia, in the wider region of town metković, during th ...200616453065
observations on the development of syncuaria squamata (nematoda: acuariidae), a parasite of cormorants, in the intermediate and paratenic hosts.the development of the nematode syncuaria squamata (linstow, 1883), a gizzard parasite of cormorants, was experimentally studied in the ostracod notodromas monacha. after the eggs of this nematode have been swallowed by the ostracod, the toothed first-stage larvae of the parasite are released and penetrate through the intestinal wall into the haemocoel of the crustacean. before attaining the infective third stage, the larvae moult twice in the body of the intermediate host (9-11 and 13-15 days a ...19947883250
occurrence of monogenea in italian freshwater fish (po river basin).sixteen monogenean species were found on the skin and gills of 10 different fish species collected from north italian water bodies. cleidodiscus pricei from ictalurus melas; dactylogyrus alatus from alburnus alburnus; d. anchoratus, d. formosus and d. vastator from carassius carassius; d. difformis from scardinius erythrophthalmus; d. rutili from rutilus aula; d. tincae and gyrodactylus gasterostei from tinca tinca; d. ergensi from leuciscus cephalus and telestes muticellus; d. vistulae and para ...200212701382
preliminary investigations of bony fish--tench (tinca tinca l.)--erythrocyte insulin receptors.specific insulin receptors were identified on tench (tinca tinca l.) erythrocytes. the samples of blood from 3-4 fish per experiment were pooled in summer. erythrocytes were washed twice with saline solution, then centrifuged and resuspended in the assay buffer. incubations were carried out in 0.5 ml samples containing 10(9) cells, with addition of 0.03 nmol/l of 125i-pork insulin in the absence or presence of unlabelled pork or salmon insulin (0.05-2000 nmol/l) for 24 h at 4 degrees c. calculat ...19938262459
the distribution and host range of species of the blood fluke sanguinicola in british freshwater fish.the distribution of host range of sanguinicola armata, s. inermis and s. volgensis in british freshwater fish are described. s. inermis has been recorded in carp cyprinus carpio, crucian carp carassius carassius and tench tinca tinca in southern, central and eastern england and in koi carp imported from japan. s. armata has been detected in pike esox lucius and tench and s. volgensis has been found in chub leuciscus cephalus, dace leuciscus leuciscus, perch perca fluviatilis, roach rutilus rutil ...19947706678
concentration-time profiles of oxytetracycline in blood, kidney and liver of tench (tinca tinca l) after intramuscular administration.oxytetracycline (otc) is a widely-used antibiotic in several animal species. the food and drug administration allows otc to be used in fish intended for human food, but there is limited kinetics data available. we studied otc concentrations in plasma, kidney and liver in tenches (tinca tinca l) after im administration using hplc. concentrations were fit to a monocompartment open model by extended least squares regression analysis using the multi (els) computer program. peaks of otc concentration ...19968888537
flow cytometry measurement of the dna contents of g0/g1 diploid cells from three different teleost fish species.although there is a lot information in the literature about genome size in fish, a high variability among data for the same species is reported, being mainly related to methodological aspects. flow cytometry-based fluorescence measurements of intercalating dyes is the most attractive approach due to its precision, objectivity, high speed, and relative simplicity.200212116377
alterations in food intake and thyroid tissue content by corticotropin-releasing factor in tinca tinca.the present experiments test the effects of intracerebroventricular injections of ovine corticotropin-releasing factor (1 microgram) on food intake, plasma glucose levels and thyroid function at 8 h postinjection in tench. food intake and thyroid triiodothyronine (t3) content were significantly decreased after crf treatment. thyroid thyroxine (t4) content and plasma glucose levels were not modified by this neuropeptide. the present results suggest that crf plays a role on food intake regulation ...19958532953
lead and cadmium content of two cestodes, monobothrium wageneri and bothriocephalus scorpii, and their fish hosts.the adult cestodes monobothrium wageneri and bothriocephalus scorpii from the intestines of their respective final hosts, tench (tinca tinca) caught in the river ruhr, germany, and turbot (scophthalmus maximus) collected from two sampling sites on the coast of gdansk, poland, were analyzed for lead and cadmium by atomic absorption spectrometry. both cestode species contained significantly higher cadmium contents than did the muscle, liver, and intestine of their fish hosts. whereas m. wageneri a ...19979211516
some corrections in haemogregarine (apicomplexa: protozoa) nomenclature.the nomenclature of three genera in the family haemogregarinidae (haemogregarina, karyolysus, and hepatozoon) has been reviewed and the following new names are introduced to replace homonyms or for previously unnamed species: haemogregarina carlosi n. nom., in the erythrocytes of the lizard lacerta ocellata; haemogregarina tincae n. nom., in the stomach and intestine of the tench tinca tinca; hepatozoon insectivorae n. sp., in the leucocytes of the shrews sorex araneus and crocidura leucodon; he ...19826757414
[current state of fish parasites in lake trasimeno. i. observations on the tinca tinca l. population].an investigation was carried out to identify the actual state of parasitism in the tinca tinca population of trasimeno lake (umbria, italy). it has been found: a high number of infested specimens, eleven species of parasites, of which four were not yet known to be in the lake, frequency variations of certain species, the absence of others that in the past were present. the species of parasites observed are, in various ways, distributed in the paleartic region. some are considered to be of alloch ...19827066107
[inducibility of microsomal liver enzymes of the tench (tinca tinca) as a contribution to water toxicology screening]. 19836666169
seasonal variations in the immune system of the cyprinid tinca tinca. phagocytic function.seasonal variations in the in vitro phagocytic process of blood granulocytes from the tench tinca tinca were examined. different stages of the phagocytic process: mobility rate, attachment, ingestion and killing of candida albicans were evaluated. tench were kept in natural ponds in ambient water temperature, and the in vitro assays were performed at both 22 degrees c and the relative ambient temperature. results between the seasonal samples were then compared. in vitro induced mobility, attachm ...19957621666
time trends in fish populations in metropolitan france: insights from national monitoring data.using the electrofishing database of the french national agency for water and aquatic environment (onema), the time trends of 48 freshwater fish taxa at 590 sites monitored for at least 8 years from 1990 to 2009 were investigated. the results demonstrated that species richness increased steadily from the beginning of the monitoring period. this is congruent with the finding that the number of species displaying a significant increase in spatial distribution or abundance was greater than those sh ...201122136235
[an investigation of parasites of tench (tinca tinca l., 1758) in beyşehir lake].the aim of this study that was carried out from march 15, 2003 to february15, 2005 was to determine the parasites of tench (tinca tinca l., 1758) inhabiting the beyşehir lake. during the study, a total of 334 tenches (t. tinca ) were caught in different regions of beyşehir lake monthly and investigated parasitologically. endoparasites in tenches were found to be plerocercoids of ligula intestinalis, caryophyllaeus laticeps, bothriocephalus acheilognathi and proteocephalus torulosus from cestoda, ...200617309041
localization of calmodulin in epidermis and skin glands: a comparative immunohistological investigation in different vertebrate species.the study deals with the immunolocalization of calmodulin-reactive epithelial cells in different vertebrates (tinca tinca, ambystoma mexicanum, xenopus laevis, rana ridibunda, columba domestica, sus scrofa domestica, homo sapiens sapiens). the immunoperoxidase technique was performed on acetone fixed frozen sections using monoclonal (bf8) and polyclonal (acam) anti-calmodulin antibodies. we were able to differentiate 2 major types of staining patterns: 1. a more superficial epidermal staining in ...19911718122
identification of a cyprinid fish, the tench tinca tinca l., as a carrier of the bacterium aeromonas salmonicida, causative agent of furunculosis in salmonids.a typical, pigment-producing strain of aeromonas salmonicida (a. sal.), the causative agent of furunculosis in salmonid fish species, was isolated from a cyprinid species, the tench tinca tinca l. with papilloma-like skin alterations. histopathology of the papilloma-like skin alterations in tench revealed "round holes", distinctly lined by thick layers of epithelial cells, but no bacteria. the organism was isolated from skin, gills and fins, but not internal organs. the isolate proved highly vir ...19921462724
the laboratory maintenance of sanguinicola inermis plehn, 1905 (digenea: sanguinicolidae).methodology is described for the laboratory maintenance of the life-cycle of sanguinicola inermis, using common carp (cyprinus carpio) as the definitive host and lymnaea peregra as the intermediate host. lymnaea auricularia was also infected but is not considered to be a suitable laboratory host. tench (tinca tinca) were susceptible to infection at high cercarial doses but subsequent infection rates were low. goldfish (carassius auratus) and lymnaea stagnalis were refractory to laboratory infect ...19921614729
isolation of a motile mycoplasma from fish.for the first time a mycoplasma has been isolated from fish. the organism, designated strain 163k, was isolated on modified hayflick medium under aerobic conditions at 25 degrees c from the gills of a tench (tinca tinca l.). it showed the characteristic features of mycoplasmas. in addition it was flask-shaped with a distinct head-like structure and was able to attach to inert surfaces and living cells. the most interesting property of the organism was its ability to show fast gliding motion. mov ...19846502137
structural and functional analysis of spontaneous anti-nitrophenyl antibodies in three cyprinid fish species: carp (cyrinus carpio), goldfish (carassius auratus) and tench (tinca tinca).high spontaneous anti-trinitrophenyl (tnp) activities were found in three cyprinid fish species: carp (cyprinus carpio), goldfish (carassius auratus) and tench (tinca tinca). the molecules involved, isolated by affinity chromatography on dinitrophenyl-lysine sepharose (dnp-lysine-sepharose), had the main characteristics of a high molecular weight immunoglobulin (igm-like). affinity measurements were performed on natural anti-dnp/tnp antibodies isolated from nine individual tench sera, using the ...19846500139
determination of heavy metal levels in water, sediment and tissues of tench (tinca tinca l., 1758) from beyşehir lake (turkey).in the present study, some heavy metals (cu, fe, zn and mn) were seasonally determined in water, sediment and some tissues of fish tinca tinca from beyşehir lake, which is an important bird nesting and visiting area, a water source for irrigation and drinking. in the water, fe has the highest concentrations among the studied metals. generally, the metal concentrations increased in the hottest period decreased in warm seasons. results for levels in water were compared with national and internatio ...200818046616
dose-dependent antioxidant responses and pathological changes in tenca (tinca tinca) after acute oral exposure to microcystis under laboratory conditions.the effects of cyanobacterial cells containing microcystins (mcs), toxins from cyanobacteria, on oxidative stress biomarkers from liver and kidney of tenca fish (tinca tinca) were investigated under laboratory conditions. moreover, a histopathological study of liver, kidney, heart and intestine tissues was performed. fish were orally exposed to cyanobacterial cells dosing 0, 5, 11, 25 and 55 microg mc-lr/fish mixed with the food. results showed a dose-dependent decrease of superoxide dismutase ( ...200818588906
heavy metal distribution in tissues of six fish species included in human diet, inhabiting freshwaters of the nature park "hutovo blato" (bosnia and herzegovina).the aim of the study was to quantify heavy metal (mercury, lead, cadmium, and arsenic) concentration in tissues (muscles, liver, kidney, gills, and gonads) of six fish species (carp: cyprinus carpio, tench: tinca tinca, pumpkinseed: lepomis gibosus, prussian carp: carassius auratus gibelio, hasselquist: salmo dentex, eel: anguilla anguilla) from the freshwaters of the nature park hutovo blato, bosnia and herzegovina, and determine whether they are potentially harmful for human health if included ...200817687582
hepatic monooxygenase (cyp1a and cyp3a) and udpgt enzymatic activities as biomarkers for long-term carbofuran exposure in tench (tinca tinca l).the effect of a long-term exposure of tenchs to different concentrations (10 and 100 micro g/l) of the pesticide carbofuran has been evaluated. microsomal hepatic cytochrome p450 subfamily 1a (cyp1a) and 3a (cyp3a) activities, as well as the phase ii enzyme uridine diphospho-glucuronosyltransferase (udpgt) activity were evaluated as adequate biomarkers of fish exposure to environmentally relevant concentrations of the pesticide carbofuran in freshwater ecosystems. a clear time-dependent inhibiti ...200818576220
human illnesses caused by opisthorchis felineus flukes, italy.we report 2 outbreaks of opisthorchis felineus infection caused by the consumption of tench filets (tinca tinca) from a lake in italy. of the 22 infected persons, 10 (45.4%) were asymptomatic. when present, symptoms (fever, nausea, abdominal pain, and myalgias) were mild. eosinophilia occurred in all infected persons.200819046516
differentiation between microcystin contaminated and uncontaminated fish by determination of unconjugated mcs using an elisa anti-adda test based on receiver-operating characteristic curves threshold values: application to tinca tinca from natural ponds.the aim of this study was to evaluate whether the enzyme-linked immunosorbent assay (elisa) anti-adda technique could be used to monitor free microcystins (mcs) in biological samples from fish naturally exposed to toxic cyanobacteria by using receiver operating characteristic (roc) curve software to establish an optimal cut-off value for mcs. the cut-off value determined by roc curve analysis in tench (tinca tinca) exposed to mcs under laboratory conditions by roc curve analysis was 5.90-μg mcs/ ...201119645030
mycobacterium peregrinum infection in farmed european tench (tinca tinca l.).this work is the first description of mycobacterium peregrinum as an etiological agent for mycobacteriosis in farmed fishes. we report the mycobacterial infection in farmed european tench (tinca tinca l.) which was confirmed by culture, molecular identification methods (pcrs aimed at 16s rrna, rpobeta and hsp65 sequencing), and histopathology. since m. peregrinum infection has been described in humans, their clinical significance in fishes should be considered of healthcare interest. with this c ...200818539409
experimental studies on the development of contracaecum rudolphii (nematoda: anisakidae) in copepod and fish paratenic hosts.the larval development of the nematode contracaecum rudolphii (rudolphi, 1819), a common parasite of the proventriculus of cormorants, was experimentally studied. within the eggs cultivated in freshwater under laboratory temperatures of 20-22 degrees c, the developing larva undergoes two moults on days 4-5, attaining the third larval stage. most of the ensheathed third-stage larvae, 291-457 microm long, hatch spontaneously from egg shells on days 5-6. experiments have indicated that hatched ensh ...200919827362
first isolation of a newly described mycobacterium insubricum from freshwater fish.non-tuberculous or potentially pathogenic mycobacteria are ubiquitous in a water environment and are responsible for several diseases in animals and humans known as mycobacterioses. this report describes the first isolation of the novel species mycobacterium insubricum in clinically healthy freshwater fish (tinca tinca) in the czech republic which is the first to be derived from non-human sources reported in the literature.201020056356
calretinin-like immunoreactivity in the optic tectum of the tench (tinca tinca l.).the distribution of calretinin-like immunopositive cells and fibers in the optic tectum of the tench (tinca tinca) was studied by using a polyclonal antibody and the avidin-biotin-peroxidase technique. a clear laminated pattern of calretinin-like immunoreactivity was observed. the stratum periventriculare demonstrated a large number of strongly labeled cells whereas in the strata album centrale and griseum centrale, and at the boundary between the strata griseum centrale and fibrosum et griseum ...19957728522
growth, morphology and division of flagellates of the genus trypanoplasma (protozoa, kinetoplastida) in vitro.nine strains of trypanoplasms were grown in axenic culture. cultures of trypanoplasma borreli laveran and mesnil, 1901 from fish hosts blicca bjoerkna, cyprinus carpio, scardinius erythrophthalmus and tinca tinca and of t. guerneyorum minchin, 1909 from esox lucius and trypanoplasma spp. from the leech piscicola geometra were maintained in biphasic blood-agar medium snb-9 supplemented with vitamins and antibiotics. in culture, the flagellates transformed into smaller, elongated stages with a lit ...19902217113
determination of heavy metals and metals levels in five fish species from işıklı dam lake and karacaören dam lake (turkey).the concentrations of heavy metals and metals (zn, pb, bi, cd, ni, co, fe, mn, mg, cu, cr, ca, sr, na, li, k) were measured in muscle of five species cyprinus carpio (from işıklı dam), scardinius erythrophthalmus (from işıklı dam), tinca tinca (from işıklı dam), c. carpio (from karacaören dam), carassius carassius (from karacaören dam) caught from işıklı and karacaören. the highest metal was na (466.95 μg/g) in c. carassius, while the lowest levels were fe (0.37 μg/g) and cu (0.37 μg/g) in c. ca ...201121584758
[The Seasonal Distribution and Effect of Tench Fish (Tinca tinca L., 1758) Helminthes Parasites Living in Terkos Lake].Objective: The aim of this study, carried out from August, 2009 to July, 2010, was to determine the seasonal distribution of tench fish (Tinca tinca L. 1758) helminthes inhabiting the Terkos lake. Methods: Living fish gathered from the study area were brought into the laboratory. The species analysis done by ecto and endo parasites of the fish were investigated. Results: During the study, a total of 165 tenches (T. tinca) were investigated. Endoparasites in tenches were f ...201122203507
investigation on opisthorchis felineus occurrence and life cycle in italy.opisthorchiasis is a fish borne parasitic infection caused by helminths of the genus opisthorchis (digenea, opisthorchiidae), affecting humans and other fish-eating mammals. despite opisthorchis felineus was first described in italy in 1884, no cases of human opisthorchiasis were reported in this country until 2004; from then on, 4 outbreaks due to this species have been recorded in central italy. following the more relevant of these outbreaks, involving 34 people in august 2007, snails, fishes ...201021168274
non-dioxin-like pcbs in ten different fish species from the danube river in serbia.this work has been developed to examine the level of non-dioxin-like (ndl) pcbs (28, 52, 101, 138, 153 and 180) in (a) ten different freshwater fish species from the danube river, (b) two sampling points: up and downstream of the industrial zone of the city of pancevo (ecological hot spot in serbia) and (c) two time points i.e., in 2001 and 2006. obtained results would serve to analyse spatial, temporal and congener profile characteristics of ndl pcbs cumulated in fish tissues due to environment ...201021161586
biochemical research on oogenesis: protein synthesis by purified 42s particles from xenopus laevis and tinca tinca previtellogenic oocytes.when incubated with atp and a labeled amino acid, the 42s particles from early oocytes of xenopus laevis and tinca tinca incorporate radioactivity into trna and into a high molecular mass material which can be identified as protein. this incorporation is totally independent of ribosomes of cytosolic, mitochondrial or bacterial origin. the incorporated amino acids are linked to a broad spectrum of proteins by covalent bonds. simple treatments such as incubation in buffer or addition of synthetic ...19873118964
pcr-rflp assays to distinguish the western and eastern phylogroups in wild and cultured tench tinca tinca.the tench tinca tinca is a valued table fish native to europe and asia, but which is now widely distributed in many temperate freshwater regions of the world as the result of human-mediated translocations. fish are currently being transplanted between watersheds without concern for genetic similarity to wild populations or local adaptation, and efficient phylogeographic markers are therefore urgently needed to rapidly distinguish genetically distinct geographical populations and to assess their ...201121429147
parasite fauna of selected fish species of lake miedwie.a total of 136 fishes, representing 9 species (perch, perca fluviatilis l.; pike, esox lucius l.; european eel, anguilla anguilla (l.); common bream, abramis brama (l.); roach, rutilus rutilus (l.); tench tinca tinca (l.); european whitefish, coregonus lavaretus (l.); vendace, coregonus albula (l.); and zander, sander lucioperca (l.)), from lake miedwie were studied within 1997-1999. the necropsies yielded 41 parasite species (taxa). the most diversified were parasite faunas of pike (19 parasite ...200216888943
opisthorchis felineus, an emerging infection in italy and its implication for the european union.the liver fluke opisthorchis felineus is one of the few zoonotic trematodes that circulates in the european union (eu). it is transmitted from freshwater snails to fish and then to fish-eating mammals, including humans, in which it causes opisthorchiasis. in the 20th century, the majority of infections in humans have been reported in eastern europe (e.g., belarus, russia, and ukraine) and asia (siberia). in eu in the last fifty years, the parasite has been detected in humans of germany and greec ...201323337391
the biotransformation of [14c]phenol in some freshwater fish.1. the biotransformation of phenol was investigated in eight species of freshwater fish: bream (abramis brama), goldfish (carassius auratus), guppy (poecilia reticulata), minnow (phoxinus phoxinus), perch (perca fluviatilis), roach (rutilus rutilus), rudd (scardinius erythropthalmus) and tench (tinca tinca), when exposed to sublethal concentrations of phenol in the aquarium water. 2. the two conjugates, phenyl sulphate and phenyl glucuronide, were the sole detected products produced by bream, pe ...19817293212
3-d structure, volume, and dna content of erythrocyte nuclei of polyploid fish.we have explored the potential relationship between ploidy level, dna content (pg dna nucleus(-1)), and dimensional characteristics, such as volume (μm(3)), surface area (μm(2)), and 3-d structure of erythrocyte nuclei in a series of fish ploidy level models using feulgen image analysis densitometry, flow cytometry, and confocal laser scanning microscopy. the species were diploid tench (tinca tinca) (2n), cuban gar (atractosteus tristoechus) (2n), triploid tench (3n), evolutionary tetraploid ste ...201424446105
fish predation and offspring survival in the prosobranch snail viviparus ater.in this study we identified some of the predators of the freshwater snail viviparus ater and estimated offspring survival to the end of the first summer in a natural population. newborn v. ater were eaten by the fish barbus barbus, rutilus rutilus, scardinius erythrophtalmus and tinca tinca. out of 137 guts of abramis brama caught in lake zürich 1 contained shell fragments and an operculum of a newborn v. ater. on a 40×40 m grid near goldbach, lake zürich, we counted 678 adult females of v. ater ...199328313816
patterns of brain morphology in mid-european cyprinidae (pisces, teleostei): a quantitative histological study.the present study considers patterns of brain morphology in 14 common species of mid-european cyprinidae. sixteen areas per brain were measured on serial cryostat sections by computer-aided planimetry. the volumes of these areas were expressed as % of the total brain volume. these brain centres (ranked according to falling values of the coefficient of variation vr, of the interspecific mean) are: lobus facialis, l. vagus, central acustic area, crista cerebellaris, bulbus olfactorius, eminentia g ...19883418119
the biotransformation of three 14c-labelled phenolic compounds in twelve species of freshwater fish.1. the urinary and biliary excretion of 14c-labelled m-cresol, 1-naphthol and o-chlorophenol were investigated in 12 species of freshwater fish (bitterling, rhodeus sericeus amarus; bream, abramis brama; crucian carp, carassius carassius; goldfish, carassius auratus; gudgeon, gobio gobio; guppy, poecilia reticulata; minnow, phoximus phoximus; perch, perca fluviatilis; roach, rutilus rutilus; rudd, scardinius erythropthalmus; three-spined stickleback, gasterosteus aculeatus; tench, tinca tinca) w ...19836880238
influence of the temperature upon the proliferative response of lymphocytes of tench (tinca tinca) during winter and summer.the influence of incubation temperature upon proliferation of tinca tinca lymphocytes induced by phytohemagglutinin (pha) and e. coli lipopolisaccharide (lps) mitogens was studied during the summer and the winter. the cultures were performed in vitro at 22 degrees c in both summer and winter, and at 12 and 30 degrees c in winter and summer respectively. the proliferative response at 22 degrees c was higher than that at 12 degrees c during the winter, and a small increase was observed at 30 degre ...19957554821
epidemiology of fishborne trematodiasis in kazakhstan.fish borne trematodes are an important cause of morbidity in kazakhstan. the number of human cases of opisthorchiidosis (infection with parasites of the family opisthorchiidae) reached a peak of 2521 recorded cases (17 cases per 100,000) in 2002 with a gradual decline to 1225 cases (7.4 cases per 100,000) in 2011. most human cases are found in the north and north east part of kazakhstan in areas drained by the irtysh river and it tributaries. a further focus is found in the north west in the ura ...201424943190
the application of image cytometry to viability assessment in dual fluorescence-stained fish spermatozoa.the viability of spermatozoa has been assessed using sybr 14 staining for dna of living cells and propidium iodide staining for dna of degenerate cells. this dual staining was performed on four fish species (siberian sturgeon, acipenser baerii; common carp, cyprinus carpio; tench, tinca tinca and wels, silurus glanis) and the proportions of live and dead spermatozoa were assessed by epifluorescence microscopy and image cytometry. ten phase contrast and epifluorescent images were recorded per sam ...200415566965
metals in edible fish from vistula river and dead vistula river channel, baltic sea.metals including al, ba, ca, cd, co, cr, cu, fe, hg, k, mg, mn, na, ni, pb, sr and zn were determined in muscle tissue of 12 fish species by inductively coupled plasma-atomic emission spectroscopy (icp-aes) and cold vapour-atomic absorption spectroscopy (cv-aas). fish were collected from vistula river at lower course and dead vistula river channel in south of baltic sea in poland. the fish species examined include round goby (neogobius melanostomus), crucian carp (carassius carassius), bull-rout ...201222428891
image cytometric measurements of diploid, triploid and tetraploid fish erythrocytes in blood smears reflect the true dimensions of live cells.comparative image cytometry of erythrocytes of diploid and triploid tench tinca tinca l. and evolutionary tetraploid sterlet acipenser ruthenus l. was performed on whole live unstained cells, live cells with stained nuclei and on stained fixed whole cells and their nuclei to test if erythrocyte measurements made from blood smears reflect the true dimensions of live cells. nuclear area and perimeter were the best ploidy level predictors distinguishing accurately among live and fixed diploid, trip ...201120812918
[light and electron micrscopic study of the renal hemopoietic cells of the tenca (tinca tinca l.)]. 20113239833
comparative scanning electron microscopy of the ventricular surface in four actinopterygian fishes: acipenser ruthenus, salmo gairdneri, tinca tinca and blennius sanquinolentus (pisces).the ventricular surface structure of the brains of actinopterygian fishes representing four distinct evolutionary levels was investigated by scanning electron microscopy (sem). in the chondrostean acipenser ruthenus ventricular spaces are wide and the ependymal surface is for the greater part densely covered with cilia; apart from macrophages supraependymal cells (se) are very scarce. in the teleosts salmo gairdneri, tinca tinca and blennius sanquinolentus the ventricles are slit-like, the dense ...19853989278
an atlas of the brain of the tench (tinca tinca l., 1758; cyprinidae, teleostei).this report provides an atlas of the tench brain in the transverse plane. the brain atlas is based on paraffin-embedded brains which are serially sectioned and stained with cresyl violet. it consists of drawings and photographs at several levels throughout the main divisions of the tench brain. the brain of the tench shows important variations in the shape, extension and boundaries of different brain areas and nuclei in comparison with those previously described in the brain of other teleosts.20061479189
comparative analysis of glucosephosphate isomerase, lactate dehydrogenase and malate dehydrogenase isozymes in 9 cyprinid species from italy.the developmental and the tissue-specific expression of glucosephosphate isomerase (gpi), lactate dehydrogenase (ldh) and malate dehydrogenase (mdh) multilocus isozymes were analyzed in samples of leuciscus cephalus and the adult patterns compared with those of 8 additional italian cyprinid species: alburnus alburnus alborella, chondrostoma genei, l. lucumonis, l. souffia, rutilus rubilio, r. erythrophthalmus, scardinius erythrophthalmus and tinca tinca, the taxonomic status of many of them bein ...199818462025
dna reassociation kinetics in diploid and phylogenetically tetraploid cyprinidae.four diploid and three phylogenetically tetraploid cyprinidae (ostariophysi) have been characterized as for nuclear dna content, modal chromosome number and dna reassociation kinetics (hydroxyapatite chromatography). among the diploid species nuclear dna content (10(-12) g dna/2c) was 1.62 for tinca tinca, 1.87 for scardinius erythrophthalmus, 2.53 for leuciscus cephalus and 2.75 for alburnus alburnus, while the phylogenetically tetraploid species carassius auratus, barbus barbus and cyprinus ca ...1979490124
fine structure and cellular responses at the host-parasite interface in a range of fish-helminth systems.a series of ultrastructural-based studies were conducted on the interface region in different fish-helminth systems: (a) an intestinal infection of the cestode monobothrium wageneri in tench, tinca tinca; (b) an extensive intestinal submucosa and mucosal infection in tench by metacercariae of an unidentified digenean trematode; (c) an intestinal infection in brown trout, salmo trutta, by the acanthocephalan dentitruncus truttae; (d) an extraintestinal infection by larvae of the acanthocephalan, ...201525613477
biomass and abundance biases in european standard gillnet sampling.the european standard en 14757 recommends gillnet mesh sizes that range from 5 to 55mm (knot-to-knot) for the standard monitoring of fish assemblages and suggests adding gillnets with larger mesh sizes if necessary. our research showed that the recommended range of mesh sizes did not provide a representative picture of fish sizes for larger species that commonly occur in continental europe. we developed a novel, large mesh gillnet which consists of mesh sizes 70, 90, 110 and 135mm (knot to knot, ...201525793776
[cytochemical and cytophysiological characterization of mixed noradrenalinogenic cells and interrenal cells in the tench (tinca tinca l.)]. 20154662001
[structural and ultrastructural study of the kidney of the tench, tinca tinca l., after experimental poisoning by the absorption of lead nitrate]. 20113142178
intracellular recording from single and double cone cells isolated from the fish retina (tinca tinca).intracellular recording were obtained from isolated single and double cone cells of the tench retina. photoresponses show features characteristic of other species and behave linearly with very dim illumination. the cells spectral sensitivity matches their pigment absorption spectrum measured by previous authors. the principal and accessory members of double cones show a maximal sensitivity peak at about 644 and 547 nm, respectively. in addition, each of the two action spectra shows a secondary i ...20133851743
[the interaction between adrenaline and insulin in the regulation of glycoside metabolism in the tench (tinca tinca l.)]. 20144251930
tyrosine hydroxylase immunoreactivity in a subpopulation of granule cells in the olfactory bulb of teleost fish.the distribution of tyrosine hydroxylase (th)-like immunoreactivity in the olfactory bulb was studied in three species of teleosts, the tench tinca tinca, the mediterranean barbel barbus meridionalis and the rainbow trout salmo gairdneri, by using an indirect immunoperoxidase method. the antiserum used displayed a characteristic pattern of immunostaining in the three species, and four main conclusions can be drawn: (1) there is a large population of th-like positive cell bodies and fibers in the ...19892575430
ruffed cells in the olfactory bulb of freshwater teleosts. i. golgi impregnation.the olfactory bulbs of barbus meridionalis, carassius carassius, chondrostoma polylepis, cyprinus carpio, tinca tinca and salmo gairdneri were examined by two variants of the golgi technique. we report, for the first time, the existence of ruffed cells in these species. this neuronal type shows a characteristic morphology and location. overall, these cells exhibit a generalised pattern, although there are qualitative and quantitative variations between the various species studied.20123503042
[experimental research on the biological cycle of phyllodistomum elongatum nybelin, 1926 (digenea: gorgoderidae looss, 1901)].experimental infection of tinca tinca and carassius auratus have demonstrated that cercaria duplicata von baer, 1827 is the larval form of phyllodistomum elongatum nybelin, 1926 and that the life-cycle occurs between anodonta cygnea (intermediate host) and tinca tinca or carassius auratus (final host) without a second intermediate host. the life-history experimentally completed in the laboratory occurs in the following way: -- adult in the ureters of tinca tinca and carassius auratus; -- mother ...20061233405
monooxygenase activity of fish liver in biomonitoring aquatic environment.the hepatic biotransformation activity of four cultivated freshwater fish, amur carp (ctenopharyngodon idella), carp (cyprinus carpio), rainbow trout (salmo gairdneri) and tench (tinca tinca) were studied one day after catching the fish from ponds and a river in the south of gdr and in fish kept for two weeks in clean filtrated and deacidified water. aryl hydrocarbon hydroxylase, 7-ethoxycoumarin o-deethylase and 7-ethoxyresorufin o-deethylase activities fell to about 20% during the stay in clea ...19863492989
[comparative ultrastructure of the brush border of the enterocyte, depending upon the nutritional state in 3 cyprinides: the tench (tinca tinca l.), the carp(cyprinus carpio l.) and the goldfish(carassius auratus l.)]. 20164791998
cutaneous respiration in three freshwater teleosts.cutaneous oxygen consumption and oxygen uptake from the external medium were investigated in three species of freshwater teleosts:eel(anguilla anguilla l.)(silvered stage), trout (salmo gairdnerii r.) and tench (tinca tinca l.). the oxygen consumption of the skin is the same in the three species: 4.5 nmol-cm-2-min-1. it accounts for 35% of total mo2 in the eel; 23% in the tench, which lives in poorly oxygenated water; and 13% in the trout living in highly oxygenated water. cutaneous oxygen consu ...1977882732
comparative study of acetylcholine synthesis in organs of freshwater teleosts.the activity of acetylcholine (ach) synthesizing enzyme, choline acetyltransferase (chat), and the content of ach were determined in the brain, heart, red trunk muscle and midgut of 12 freshwater teleost species belonging to eight families: carp (cyprinus carpio), tench (tinca tinca), silver carp (hypophthalmichtys molitrix), bighead (hypophthalmichtys nobilis), wels (silurus glanis), cat fish (ictalurus nebulosus), eel (anguilla anguilla), rainbow trout (oncorhynchus mykiss), pike (esox lucius) ...199124214667
physical changes in specimens of five species of cyprinidae preserved in ethanol and frozen.preservation in 30% ethanol and freezing to a temperature of -20 ± 2° c is an appropriate method for measurement of fish eggs, larvae and juveniles. egg diameter of the common carp cyprinus carpio increased insignificantly by 1·32% after preservation compared with live size. the total length (lt ) of 1 day post-hatching (dph) larvae as well as the standard length (ls) of 16 dph larvae of c. carpio increased significantly (2·95 and 1·50%, respectively) after preservation. egg diameter as well as ...201425041177
isolation and characterization of novel glycoproteins from fish epidermal mucus: correlation between their pore-forming properties and their antibacterial activities.in fish, a layer of mucus covers the external body surface contributing therefore, among other important biological functions, to the defense system of fish. the prevention of colonization by aquatic parasites, bacteria and fungi is mediated both by immune system compounds (igm, lysozyme, etc.) and by antibacterial peptides and polypeptides. we have recently shown that only the hydrophobic components of crude epidermal mucus of fresh water and sea water fish exhibit strong pore-forming propertie ...200011030587
quantification of histamine in various fish samples using square wave stripping voltammetric method.the objective of this study was to describe a new and simple method for the determination of histamine so that it can be used in routine food analysis. a square wave stripping voltammetric (swsv) method has been used for the indirect determination of histamine. the method is based on accumulation copper (ii) - histamine complex onto a hanging mercury drop electrode and reduction of complex. the optimum conditions include an accumulation potential of -420 mv (versus ag/agcl), an accumulation time ...201526396415
[electrophysiologic and anatomic demonstration of inhibitory commisural vestibular neurons in the tench (tinca tinca)].horseradish peroxydase was injected intracellularly in some of the medullary neurons which, in fish, exhibit a passive hyperpolarizing potential after spinal cord stimulation (this indicates that such neurons both electrical and chemical inhibitions of the mauthner cells). with positive staining, commissural vestibular neurons were identified; their axons cross the midline and they establish connexions with the mauthner cell and with vestibular neurons of both sides. thus the existence of a cros ...1978417859
electron microscopic study on gut epithelium of the tench (tinca tinca l.) with respect to its absorptive functions.few morphological differences are seen along the intestinal tract of the adult tench (tinca tinca l.) a stomachless freshwater teleost. however, three segments can be distinguished, when function and structure of enterocytes are studied. the enterocytes of the proximal segment are found to be concerned with dietary lipids absorption. in the cell, absorbed fats are seen in two inclusion bodies: lipid particles and lipid droplets. only lipid particles are involved in direct transport of absorbed f ...1976982424
occurrence of parasites of the genus eustrongylides spp. (nematoda: dioctophymatidae) in fish caught in trasimeno lake, italy.eustrongylides spp. is considered a freshwater fish zoonotic nematode. in the present study, the prevalence of eustrongylides spp. in six edible fish (european perch - perca fluviatilis, goldfish - carassius auratus, largemouth black bass - micropterus salmoides, tench- tinca tinca, carp - cyprinus carpio and sand smelt - atherina boyeri) of trasimeno lake was surveyed. the investigations were conducted from october 2014 to september 2015 and 384 specimens per species for each season were caught ...201628058245
cryosurvival of isolated testicular cells and testicular tissue of tench tinca tinca and goldfish carassius auratus following slow-rate freezing.experiments were carried out to test the efficiency of cryopreservation of whole testicular tissue in tench tinca tinca and goldfish carassius auratus and compare it to cryopreservation of isolated testicular cells. additionally, effects of three cryoprotectants (dimethyl sulphoxyde - me2so, methanol - meoh and ethylene glycol - eg) at three concentrations (1m, 2m and 3m) on post-thaw cell viability were assessed. tissue pieces/isolated testicular cells were diluted in cryomedia and cryopreserve ...201727401260
[morphology of the endocrine portion of the teleost pancreas].endocrine component of the crucian (carassius carassius), carp (cyprinus carpio), tench (tinca tinca) and silurus (silurus glanis) pancreas is structurally organized in the form of pancreatic islets. gorbusha (oncorhynchus gorbuscha) has, besides the islets, some brockman's bodies. endocrine component of the pancreas of teleostei possesses a-, b-, d and acinar-islet cells "b". all types of cells are shoot-shaped and all have contacts with the capillaries. extrusion of the hormones from the endoc ...1978343755
morphologic changes in teleost primary and secondary retinal cells following brief exposure to light.light adaptive morphologic changes in the teleost retina, such as movements of rods, cones, and epithelial pigment and spinule formation on horizontal cell terminals, are normally associated with continual exposure to light. depending on a variety of factors these processes are generally completed within 30-60 min. in this report we show that a brief exposure to light (1-2 min) preceded and followed by darkness is sufficient to elicit these changes in four species of teleost; the trout (salmo ga ...19836826311
genetic polymorphism and isoenzyme patterns of lactate dehydrogenase in tench (tinca tinca), crucian carp (carassius carassius) and carp (cyprinus carpio).isoenzyme patterns and the polymorphism of lactate dehydrogenase (ldh) were investigated in 3 fish species of family cyprinidae, i.e. tench (tinca tinca), crucian carp (carassius carassius) and carp (cyprinus carpio). the isoenzyme patterns were tissue and species specific. in crucian carp subunits with different electrophoretic mobility are present, which are genetically controlled from the b1, b2, a1, a2 and c loci, while the set of loci in carp is b1, b2, a, c1 and c2 and in tench b, a, c. th ...1977567944
enantiomeric composition of the polycyclic musks hhcb and ahtn in different aquatic speciessynthetic polycyclic musk fragrances are mainly represented by the compounds hhcb (galaxolide(tm)) and ahtn (tonalide(tm)). because of their volume of use and their bioaccumulation potential, there is concern with respect to their environmental safety. hhcb and ahtn are chiral compounds, and gas chromatography using modified cyclodextrins as chiral stationary phases coupled to high-resolution mass spectrometry enabled enantioselective analysis even under unfavorable matrix conditions. the gas ch ...199910561711
[a report of ectoparasite piscicola geometra (linnaeus, 1761) (hirudinea: rhynchobdellida) on roach (rutilus rutilus (linnaeus, 1758)) from uluabat lake].an ectoparasite leech piscicola geometra were found on female roach (rutilus rutilus) between the anus and lateral line during the biometric measurements for the purpose of monitoring the fish population in uluabat lake. p. geometra was previously reported on carassius gibelio and tinca tinca from lake uluabat. it was understood with this case report that r. rutilus also is a host fish for p. geometra in uluabat lake.201122198920
fatty acid composition of the muscle lipids of five fish species in işıklı and karacaören dam lake, turkey.total fatty acid composition of muscle lipids in some fish species (cyprinus carpio (işıklı dam lake), tinca tinca (işıklı dam lake), scardinius erythrophthalmus (işıklı dam lake), cyprinus carpio (karacaören dam lake), and carassius carassius (karacaören dam lake)) was determined by gas chromatography. polyunsaturated fatty acids (pufas) of cyprinus carpio (işıklı dam lake) were found higher than pufa of other species. palmitic acid was the highest saturated fatty acid (sfa) in tinca tinca (24. ...201425143856
[hybridization of crucian carp, carassius carassius (linnaeus, 1758), in ukrainian reservoirs and genetic structure of hybrids].hybridization of crucian carps carassius carassius in polyspecific crucian populations of reservoirs of ukraine and genetic structure of the hybrids were investigated using biochemical gene marking and cytometric procedure. the fact of wide hybridization between c. auratus and c. carassius was proved to be true by large number of hybrids which can form populations consisting only from hybrid individuals. hybrids c. auratus x c. carassius were diploid, tryploid and in exceptional cases tetraploid ...201222420218
[assessment of pathological changes in fish muscle tissue, forming as a result of exposure to toxic factors in the environment].our investigation of muscle tissue of fishes, inhabiting the regions with unfavorable ecological conditions (the river volga), permitted to select four types of degenerative changes in muscle tissue. these alterations are associated with both the phylogenetic status of fish species and ecological dispositions of species. using different methods of investigation several types of muscle destruction were shown. i. destruction of myofibrillar apparatus (lysis of protofibrils), with sarcolemma remain ...200010709249
development of population models for esox lucius and tinca tinca in flanders based on classification tree methods. 200516366331
retrograde positive contrast urethrocystography of the fish urogenital system.the radiological differences between the urinary tract of  dicentrarchus labrax, sparus aurata, tinca tinca, and cyprinus carpio are shown. in fresh water teleosts the urinary bladder is sigmoid and a short urethra leads to the urinary pore. genital and anal pores are present. in sparus aurata the urinary bladder has a globoid shape. in dicentrarchus labrax the urinary bladder is smaller and elongate. in both marine teleosts a single urogenital pore is visible. positive contrast was used to surv ...201425180198
characterization of sections of the sava river based on fish community structure.sampling was undertaken, with the same fishing gear and along the sava river, from its source to its confluence, in september 2014 and september 2015. in total, 44 fish species were identified, of which 37 were native species and 7 were alien. fish samples revealed independence in terms of both species composition and their abundance under different hydrological conditions. during flooding and high water levels in 2014, pelagic fish species were sampled in greater proportion than at lower water ...201727639023
encountering a bait is necessary but insufficient to explain individual variability in vulnerability to angling in two freshwater benthivorous fish in the wild.fish personality traits, such as swimming activity, or personality related emergent behavioural properties, such as the degree of space use shown by an individual fish, should affect encounter rates between individual fish and fishing gear. increased encounters should in turn drive vulnerability to capture by passively operated gears. however, empirical evidence documenting a relationship between activity-based behaviours and vulnerability to capture by passive fishing gear in the wild is limite ...201728301558
protective responses of intestinal mucous cells in a range of fish-helminth systems.histopathological, immunofluorescence and ultrastructural studies were conducted on the intestines of four fish species infected with different taxa of enteric helminths. brown trout (salmo trutta trutta), eel (anguilla anguilla) and tench (tinca tinca) obtained from lake piediluco (central italy) were examined. brown trout and eel were infected with two species of acanthocephalans, and tench was parasitized with a tapeworm species. in addition to the above site, specimens of chub (squalius ceph ...201628026022
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