| a focus of opisthorchiidosis in germany. | epidemiological investigations were carried out in a focus of opisthorchiidosis in brandenburg state of germany. 9 out of 23 cats harboured adult flukes in their livers. beside opisthorchis felineus, metorchis bilis was found in 4 cats. muscle samples of 227 cyprinid fish belonging to 6 species (rutilus rutilus, scardinius erythrophthalmus, alburnus alburnus, abramis brama, a. ballerus, blicca bjoerkna) were examined for trematode metacercariae. 12 different types of cysts were found. o. felineu ... | 1996 | 9060173 |
| [distribution of the cestode caryophyllaeides fennica (cestoda: lytocestidae) in the population of cyprinid fish in the rybinsk water reservoir]. | the distribution of the cestode caryophyllaeides fennica in populations of the ide, roach, white bream and bream from the rybinsk reservoir has been analyzed in regard to fish age. the relative abundance of c. fennica in populations of each host species was calculated as product of the helminthes abundance by the fish number in age groups. the highest prevalence and abundance of cestodes was found in the ide. all age classes of this species were infected, with the maximum in fishes of the age 3+ ... | 2003 | 12815814 |
| [helminth parasites of white bream (blicca bjoerkna l. 1758) from kocadere stream, bursa.] | aim of this study was to investigate the helminths and their monthly prevalence in 120 blicca bjoerkna (white bream) in the kocadere stream (bursa province) from february 2005 to january 2006. as a result, 98.3% of b. bjoerkna were found to be infected with one or more helminth species and a total of 5 different helminth species were identified. the distribution of these parasites in b. bjoerkna and the average prevalence (annually) were as follows: dactylogyrus sphyrna (24.2%), d. distinguendus ... | 2010 | 20597058 |
| parasitic infection of an endemic fish (blicca bjoerkna) and an exotic fish (hemiculter beucisculus) in anzali lagoon, caspian sea, iran. | in anzali lagoon, there are some endemic and exotic fishes. the present study was conducted to compare the parasitic fauna of blicca bjeorkna, as an endemic fish and hemiculter leucisculus, as an introduced fish to the lagoon. | 2011 | 22347299 |
| non-native gobies facilitate the transmission of bucephalus polymorphus (trematoda). | introduced species can modify local host-parasite dynamics by amplifying parasite infection which can 'spill-back' to the native fauna, whether they are competent hosts for local parasites, or by acting as parasite sinks with 'dilution' of infection decreasing the parasite burden of native hosts. recently infection by the trematode bucephalus polymorphus has increased in several european rivers, being attributed to the introduction of intermediate host species from the ponto-caspian region. usin ... | 2015 | 26187653 |
| non-native gobies facilitate the transmission of bucephalus polymorphus (trematoda). | introduced species can modify local host-parasite dynamics by amplifying parasite infection which can 'spill-back' to the native fauna, whether they are competent hosts for local parasites, or by acting as parasite sinks with 'dilution' of infection decreasing the parasite burden of native hosts. recently infection by the trematode bucephalus polymorphus has increased in several european rivers, being attributed to the introduction of intermediate host species from the ponto-caspian region. usin ... | 2015 | 26187653 |
| biodiversity of trematodes in their intermediate mollusc and fish hosts in the freshwater ecosystems of europe. | we analysed two novel databases containing 2,380 and 8,202 host-parasite-locality records for trematode parasites of molluscs and fishes, respectively, to assess the biodiversity of trematodes in their intermediate mollusc and fish hosts in the freshwater environment in europe. the "mollusc" dataset covers large numbers of pulmonate (29 spp.), "prosobranch" (15 spp.) and bivalve (11 spp.) molluscs acting as first intermediate hosts for 171 trematode species of 89 genera and 35 families. of these ... | 2016 | 26898591 |
| comparative study of acetylcholinesterase and butyrylcholinesterase in brain and serum of several freshwater fish: specific activities and in vitro inhibition by ddvp, an organophosphorus pesticide. | a comparative study of specific activities and in vitro inhibition of brain and serum acetylcholinesterase (ache; ec 3.1.1.7) and serum butyrylcholinesterase (bche; ec 3.1.1.8) by ddvp, an organophosphorus pesticide, was conducted in 11 freshwater teleost species belonging to four families (cyprinidae; common carp cyprinus carpio, bream abramis brama, blue bream a. ballerus, white bream blicca bjoerkna, roach rutilus rutilus, bleak alburnus alburnus, ide leuciscus idus; percidae: perch perca flu ... | 2000 | 11246494 |
| occurrence of priority and emerging organic compounds in fishes from the rhone river (france). | the main objective of this study was to collect new data on the occurrence, levels of priority and emerging organic compounds in freshwater fish sampled in the rhone river. the 34 studied contaminants included alkylphenols, bisphenol a, polybromodiphenylethers (pbde), perfluorinated compounds, hexabromocyclododecanes (hbcd), hexachlorobenzene and hexachlorobutadiene (hcbd). about 50 fish samples (individual specimens or pooled fish) were collected from three sites located upstream and downstream ... | 2012 | 22760502 |
| seasonal dynamics of posthodiplostomum cuticola (digenea, diplostomatidae) metacercariae and parasite-enhanced growth of juvenile host fish. | the seasonal dynamics of posthodiplostomum cuticola metacercariae in 0+ juvenile fish, rutilus rutilus, scardinius erythrophthalmus and abramis bjoerkna, was studied on the floodplain of the dyje river, czech republic. prevalence and mean abundance of p. cuticola were significantly higher in r. rutilus than in s. erythrophthalmus or a. bjoerkna. a seasonal pattern of parasite infection with maximum values in autumn was evident in all three species. no effect of overwintering on the p. cuticola i ... | 2004 | 15127298 |
| flooding modifies the genotoxic effects of pollution on a worm, a mussel and two fish species from the sava river. | extreme hydrological events, such as water scarcity and flooding, can modify the effect of other stressors present in aquatic environment, which could result in the significant changes in the ecosystem functioning. presence and interaction of various stressors (genotoxic pollutants) in the environment can influence the integrity of dna molecules in aquatic organisms which can be negatively reflected on the individual, population and community levels. therefore, in this study we have investigated ... | 2016 | 25861862 |
| bioaccumulation of heavy metals and microelements in silver bream (brama brama l.), northern pike (esox lucius l.), sterlet (acipenser ruthenus l.), and common carp (cyprinus carpio l.) from tisza river, serbia. | the aim of this study was to determine the concentrations of al, as, b, cd, co, cr, cu, fe, hg, mn, ni, pb, se, sr, and zn in liver, gills, gonads, and brain of four ecologically different fish species in serbia: piscivorous northern pike, benthivorous sterlet and silver bream, and omnivorous common carp. fish were caught at four sites along the stretch of the river tisza in the pannonian part of serbia during october 2010. results revealed that heavy metals and microelements with the highest va ... | 2015 | 26039743 |
| host switch and infestation by ligula intestinalis l. in a silver bream (blicca bjoerkna l.) population. | sampling of the fish community was carried out for 20 years in the mirgenbach reservoir, in north-eastern france. the prevalence and the mean intensity of ligula intestinalis (cestoda) were analysed in roach (rutilus rutilus) and silver bream (blicca bjoerkna) populations, the main two infected species. the aim of this study was to investigate the host switch from roach to silver bream and the consequences of l. intestinalis infestation in silver bream, which is an unusual host for this parasite ... | 2012 | 22217256 |
| molecular characterization and phylogenetic analysis of the genome of porcine torovirus. | in this study, we amplified and sequenced the first genome of porcine torovirus (ptov sh1 strain). the genome was found to be 28,301 bp in length, sharing 79 % identity with breda virus. it mainly consists of replicase (20,906 bp) and structural genes: spike (4,722 bp), membrane (702 bp), hemagglutinin-esterase (1,284 bp), and nucleocapsid (492 bp). sequence alignments and structure prediction suggest genetic differences among toroviruses, mainly in nsp1 (papain-like cysteine proteinase domain). ... | 2014 | 24122107 |
| isolation and characterization of a novel reovirus from white bream blicca bjoerkna. | during a fish health inspection in the viennese waterway 'old danube', a virus was isolated exclusively from white bream blicca bjoerkna (l.) (formerly abramis bjoerkna l.), one of the most abundant cyprinids present and not known as a host species for this virus. the virus preferentially replicated in cultures of the epithelioma papulosum cyprini cell line where focal plaques of infection developed slowly. examination of infected cell cultures by electron microscopy revealed non-enveloped 60 to ... | 2014 | 25449324 |
| isolation and characterization of a novel reovirus from white bream blicca bjoerkna. | during a fish health inspection in the viennese waterway 'old danube', a virus was isolated exclusively from white bream blicca bjoerkna (l.) (formerly abramis bjoerkna l.), one of the most abundant cyprinids present and not known as a host species for this virus. the virus preferentially replicated in cultures of the epithelioma papulosum cyprini cell line where focal plaques of infection developed slowly. examination of infected cell cultures by electron microscopy revealed non-enveloped 60 to ... | 2014 | 25449324 |
| comparative karyological analysis of four diplozoid species (monogenea, diplozoidae), gill parasites of cyprinid fishes. | the present study has revealed new data on chromosome complements of diplozoid parasites, namely diplozoon paradoxum from freshwater bream abramis brama, paradiplozoon bliccae from white bream blicca bjoerkna, paradiplozoon sapae from white-eye bream ballerus sapa, and paradiplozoon nagibinae from zope ballerus ballerus. particularly, d. paradoxum is characterized by four pairs (2n=8) of long (up to 22.1 μm) chromosomes: pairs 1, 2, and 3 are metacentric and pair 4 acrocentric. karyotypes of thr ... | 2010 | 20981442 |
| bisphenol a content in fish caught in two different sites of the tyrrhenian sea (italy). | bisphenol a (bpa) is an endocrine disruptor (ed) that is abundant in the environment because of its extensive use in human-manufactured products. in this study, the bpa concentration was measured in the muscle and liver of five edible fish, characterized by different habitat and habits, caught in two different sites of the tyrrhenian sea (italy). our results show that: (i) fish livers are about 2.5 times more polluted than muscle; (ii) fish caught in the gulf of naples are more polluted than tho ... | 2010 | 20971495 |
| chromosome studies of european cyprinid fishes: interspecific homology of leuciscine cytotaxonomic marker-the largest subtelocentric chromosome pair as revealed by cross-species painting. | leuciscine cyprinids possess a nearly invariant diploid number (2n = 50) with an extremely uniform karyotype comprising of 8 pairs of metacentric, 13-15 pairs of submetacentric and 2-4 pairs of subtelocentric (st) to acrocentric (a) chromosomes. the largest pair is characteristically an st/a element-the 'leuciscine' cytotaxonomic marker. previously, the interspecific homology of this chromosome pair could not be assessed owing to the inability to produce euchromatic or serial banding patterns. i ... | 2008 | 18709543 |
| fish monogeneans from a shallow, eutrophic oświn lake in poland. | a study was carried out in a shallow, eutrophic oświn lake, within seven islands reserve (north-eastern poland), in order to determine the infection of fish with monogeneans as sensitive indicators of water quality. this paper presents comparative analysis of the occurrence of monogenea in fishes from two, distinctly separated pools of the lake, differing in environmental conditions. the impact of fish size and sampling season on the infection parameters was also analyzed. | 2006 | 17007335 |
| characterization of white bream virus reveals a novel genetic cluster of nidoviruses. | the order nidovirales comprises viruses from the families coronaviridae (genera coronavirus and torovirus), roniviridae (genus okavirus), and arteriviridae (genus arterivirus). in this study, we characterized white bream virus (wbv), a bacilliform plus-strand rna virus isolated from fish. analysis of the nucleotide sequence, organization, and expression of the 26.6-kb genome provided conclusive evidence for a phylogenetic relationship between wbv and nidoviruses. the polycistronic genome of wbv ... | 2006 | 16987966 |
| molecular genetic studies on morphologically indistinguishable myxobolus spp. infecting cyprinid fishes, with the description of three new species, m. alvarezae sp. nov., m. sitjae sp. nov. and m. eirasianus sp. nov. | while studying myxobolus gill infections of cyprinid fishes, the authors found large, segmented plasmodia in three species: ide (leuciscus idus), asp (aspius aspius) and white bream (blicca bjoerkna). as regards their size and morphology, the spores from these plasmodia corresponded to those of m. dujardini described from chub (leuciscus cephalus). however, the 18s rdna sequences of spores from the three cyprinids differed from those of m. dujardini. based on molecular differences, this paper de ... | 2012 | 23129194 |
| cross-species amplification of 41 microsatellites in european cyprinids: a tool for evolutionary, population genetics and hybridization studies. | cyprinids display the most abundant and widespread species among the european freshwater teleostei and are known to hybridize quite commonly. nevertheless, a limited number of markers for conducting comparative differentiation, evolutionary and hybridization dynamics studies are available to date. | 2010 | 20478030 |
| histological and molecular studies of species of myxobolus bütschli, 1882 (myxozoa: myxosporea) in the gills of abramis, blicca and vimba spp. (cyprinidae), with the redescription of m. macrocapsularis reuss, 1906 and m. bliccae donec & tozyyakova, 1984. | although myxobolus spp. from cyprinid fishes are generally characterised by a strict host-specificity, this study has found that the breams abramis brama (l.), blicca bjoerkna (l.) and vimba vimba (l.) may be infected by the same myxobolus spp. it is demonstrated that m. macrocapsularis reuss, 1906, a parasite of the gill filaments of b. bjoerkna, can also infect a. brama. in the same way, m. bliccae donec & tozyyakova, 1984, also a parasite of b. bjoerkna, can also occur in v. vimba. the molecu ... | 2011 | 21544710 |
| [the effect of the accident at the chernobyl atomic electric power station in 1986 on the fish population of a cooling pond]. | the cytogenetic analysis of cyprinus carpio eyes, developing blicca bjoerkna l. eggs, and eggs and larvae of hypophtalmichthys molitrix val. has demonstrated that the yield of cells with chromosome aberrations in the fish species under study is normal, while the level of variability of morphometric indices in offspring is considerably higher than that in parent fish. | 2006 | 1745759 |
| presence of lactobacilli in the intestinal content of freshwater fish from a river and from a farm with a recirculation system. | lactobacilli are gram-positive and catalase negative rods commonly found in lactic acid fermented foods and in the gastrointestinal tract of mammals and birds. few studies have described lactobacilli in freshwater fish. we analysed the presence of lactobacilli in the intestines of young and adult freshwater fish inhabiting a river environment and from fish reared in an aquaculture unit with a water recirculation system. various species of lactobacilli were present in relatively high number in th ... | 2006 | 16943040 |
| [ectoparasite infection of some fish species in lake pleshcheev]. | ectoparasites have been investigated on gills of the ruff, perch, white bream, roach, bream, ide, and european cisco from the pleshcheevo lake. 13 parasite species were found: dactylogyrus falcatus, d. distinguendus, d. cornoides, d. cornu, d. sphyrna, d. robustus, d. amphibothrium, ancyrocephalus paradoxus, argulus foliaceus, ergasilus sieboldi, achtheres percarum, ancyrocephalus percae, and rhipidocotyle companula. a reliable negative correlation between the number of monogeneans an. paradoxus ... | 2002 | 12070962 |
| identification and ultrastructural characterization of a novel virus from fish. | during routine investigations on fish, a virus (isolate df 24/00) with novel morphological features and hitherto undescribed morphogenesis was isolated from a white bream (blicca bjoerkna l.; teleostei, order cypriniformes). cell-free virions consist of a rod-shaped nucleocapsid (120-150x19-22 nm) similar to that seen in baculoviruses. the virion has a bacilliform shape (170-200x75-88 nm) reminiscent of rhabdoviruses with an envelope containing coronavirus-like spikes (20-25 nm). df 24/00 replic ... | 2001 | 11714959 |
| [molecular characterization of diplozoidae populations on 5 species of cyprinidae: new data on parasite specificity]. | the genus diplozoon (platyhelminth) exhibits one of the most striking modes of reproduction. adults reproduce after the permanent fusion of two larval hermaphrodites, which play a symmetrical role. the diplozoidae are also exceptional among the monogenea polyopisthocotylea for two other reasons. they represent the only group really diversified on continental freshwater fishes; however, this diversification is difficult to evaluate since few morphoanatomical criteria are available to distinguish ... | 2001 | 11510416 |
| comparison of methods for detection of erysipelothrix spp. and their distribution in some australasian seafoods. | for many years, erysipelothrix rhusiopathiae has been known to be the causative agent of the occupationally related infection erysipeloid. a survey of the distribution of erysipelothrix spp. in 19 australasian seafoods was conducted, and methodologies for the detection of erysipelothrix spp. were evaluated. twenty-one erysipelothrix spp. were isolated from 52 seafood parts. primary isolation of erysipelothrix spp. was most efficiently achieved with brain heart infusion broth enrichment followed ... | 2000 | 10788383 |
| [the adaptive reactions of the gill ectoparasites of the bream (abramis brama) and of the white bream (blicca bjoerkna) to exposure to an anthropogenic factor in the ivan'kovo reservoir]. | adaptive responses of some gill ectoparasites of the common bream abramus brama and the white bream blicca bjoerkna have been studied in five zones of the ivan'kovo reservoir: in the region of favorable ecological conditions, in two eutrophic zones and in two areas under the toxic loading. it is found out, that at the response to the pollution the infestation of fishes with most parasite species decreases. the replacement of dominant species is also can be considered as the adaptive response of ... | 2000 | 10750155 |
| adrenocortical and adrenomedullary homologs in eight species of adult and developing teleosts: morphology, histology, and immunohistochemistry. | morphology, histology, and immunohistochemistry of the adrenocortical and adrenomedullary homologs (adrenal glands) of the following developing and adult teleosts were examined: salmoniformes-oncorhynchus mykiss (rainbow trout), salmo trutta fario (brown trout), coregonus lavaretus (white fish); cyprinodontiformes-gambusia affinis (mosquito fish). perciformes-dicentrarchus labrax (sea bass), sparus aurata (sea bream), diplodus sargus (white bream), oblada melanura (saddled bream). the anatomical ... | 1997 | 9405124 |
| length-weight relationship of ligula intestinalis plerocercoids in adult silver bream and discussion on estimation of the parasite age. | the paper comprises an evaluation of ligula intestinalis infection in adult silver bream (blicca bjoerkna), from the nové mlýny reservoirs (czech republic), from 1991 to 1993. the prevalence (mean 4.39%) and intensity (mean 1.39 spec.) of infection were very low, ranging from 1.48% (1.11 spec.) in april-may to 11.52% (1.36 spec.) in november-december. the length-weight relationship of single infection plerocercoids was characterized by the regression and correlation coefficients of linear and ex ... | 1995 | 8541892 |
| 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 ... | 1990 | 2217113 |
| [prognosis of dynamics and risk of exceeding permissible levels of 137cs and 90sr contents in fish in the kiev reservoir at the late phase of the chernobyl accident]. | on the basis of the radionuclide specific activity measurements made on 832 samples of fish in 2009-2011 and taking into account literature data, the parameters of the stochastic model have been derived to describe the 137cs and 90sr contents in typical commercial fish species in the kiev reservoir at the late phase of the chernobyl accident, including: statistical variability, seasonal changes and monotonous long-term trends. at any fixed moment of the year the standard deviations of logarithms ... | 2016 | 25507624 |
| chemometric approach to evaluate element distribution in muscle, liver and fish bone of roach (rutilus rutilus), silver bream (blicca bjoerkna) and crucian carp (carassius carassius) from swarzędzkie lake (poland) using icp-ms and fias-cvaas techniques. | the content of elements in fish tissues and organs from swarzędzkie lake was investigated in order to evaluate the possible risk associated with their consumption by animals as well as humans. samples of muscle, liver and fish bone of three fish species; roach (rutilus rutilus), silver bream (blicca bjoerkna) and crucian carp (carassius carassius) were collected from seine catches undertaken as part of the biomanipulation of swarzędzkie lake. element concentration (al, as, cd, co, cr, cu, hg, ni ... | 2016 | 27439756 |
| accumulation behavior and risk assessment of heavy metals and arsenic in tissues of white bream (parabramis pekinensis) from the xiang river, southern china. | aquatic environment suffered from serious heavy metal and as pollutions due to rapid industrialization and urbanization in the last decades. in order to evaluate the heavy metal and as contamination in aquatic organism in southern china, the levels of as, cd, co, cr, cu, fe, mn, pb, and zn in muscle, gill, and liver of white bream (parabramis pekinensis) collected from xiang river were analyzed. the statistically significant differences of the analyzed element concentration (wet weight) between ... | 2016 | 27677994 |
| spermatological characters of the aspidogastrean aspidogaster limacoides diesing, 1835. | using transmission electron microscopy, spermiogenesis and the spermatozoon ultrastructure are described in aspidogaster limacoides (aspidogastrea, aspidogastridae), from two cyprinid fishes, abramis sapa and blicca bjoerkna, from eastern slovakia and north-western russia. results of the present investigation permit, for the first time in aspidogastrea, to describe general pattern of spermiogenesis and the organization of the spermatozoon in this presumably the most basal group of parasitic flat ... | 2009 | 19242725 |
| [prognosis of dynamics and risk of exceeding permissible levels of 137cs and 90sr contents in fish in the kiev reservoir at the late phase of the chernobyl accident]. | on the basis of the radionuclide specific activity measurements made on 832 samples of fish in 2009-2011 and taking into account literature data, the parameters of the stochastic model have been derived to describe the 137cs and 90sr contents in typical commercial fish species in the kiev reservoir at the late phase of the chernobyl accident, including: statistical variability, seasonal changes and monotonous long-term trends. at any fixed moment of the year the standard deviations of logarithms ... | 2016 | 25427374 |
| bioaccumulation of six pcb indicator congeners in a heavily polluted water reservoir in eastern slovakia: tissue-specific distribution in fish and their parasites. | concentrations of six indicator pcb congeners (iupac nos. 28, 52, 101, 138, 153, and 180) were measured in several organs and adipose tissue of a freshwater predatory fishes (european perch, northern pike, pike perch, wels catfish) as well as in nonpredators (common carp, freshwater bream, goldfish, white bream) and in acanthocephalan acanthocephalus lucii from the water reservoir zemplínska šírava (eastern slovakia), which is considered to be one of the most pcb-contaminated places in europe. c ... | 2012 | 22526286 |
| genetic analysis of a novel nidovirus from fathead minnows. | a bacilliform virus was isolated from diseased fathead minnows (pimephales promelas). analysis of the complete genome coding for the polyprotein (pp1ab), spike (s), membrane (m) and nucleocapsid (n) proteins revealed that the virus was most like white bream virus (wbv), another bacilliform virus isolated from white bream (blicca bjoerkna l.) and the type species of the genus bafinivirus within the order nidovirales. in addition to similar gene order and size, alignment of deduced amino acid sequ ... | 2012 | 22422065 |
| male primer endocrine responses to preovulatory female cyprinids under natural conditions in sweden. | this study investigated two related aspects of male-female reproductive interactions in the family cyprinidae: (1) whether ovulating female rudd scardinius erythrophthalmus (subfamily leuciscinae) induce endocrine and gonadal priming responses in conspecific males, a phenomenon which has been described only in species from the subfamily cyprininae such as goldfish, carassius auratus, crucian carp carassius carassius and common carp, cyprinus carpio and (2) whether the stimuli mediating these res ... | 2012 | 22220895 |
| characterization of bafinivirus main protease autoprocessing activities. | the production of functional nidovirus replication-transcription complexes involves extensive proteolytic processing by virus-encoded proteases. in this study, we characterized the viral main protease (m(pro)) of the type species, white bream virus (wbv), of the newly established genus bafinivirus (order nidovirales, family coronaviridae, subfamily torovirinae). comparative sequence analysis and mutagenesis data confirmed that the wbv m(pro) is a picornavirus 3c-like serine protease that uses a ... | 2011 | 21068254 |
| free amino acids as indicators of nutritional status of silver bream (vimba vimba), when using commercial and purified diets. | studies on larval rearing of silver bream (vimba vimba), a migratory cyprinid fish have addressed on limited scale larval and juvenile rearing using commercial and semipurified diets along with live feeds, such as brine shrimp artemia nauplii. the objectives of the present study were (1) to determine whether experimental, protein-, peptide-, free amino acid-based diets are adequate for larval silver bream, a stomachless fish, (2) to evaluate whether commercial and purified diets are comparable a ... | 2009 | 19185057 |
| arsenic speciation in freshwater organisms from the river danube in hungary. | total arsenic and arsenic species were determined in a range of freshwater samples (sediment, water, algae, plants, sponge, mussels, frog and fish species), collected in june 2004 from the river danube in hungary. total arsenic concentrations were measured by icpms and arsenic species were measured in aqueous extracts of the samples by ion-exchange hplc-icpms. in order to separately determine the efficiency of the extraction method and the column recovery, total arsenic concentrations in the ext ... | 2006 | 18970648 |
| deformations of the attachment organ in diplozoidae (palombi, 1949) (monogenea). | this work consisted in studying the frequency of deformations of the attachment organ in specimens representing the family diplozoidae, occurring in roach, common bream, and white bream from five different water bodies. these water bodies differed in morphometric parameters, levels of eutrophication, and character of their pollution. the presence of three types of deformation was stated. the most common were deformations of type ii (morphological changes of clamps, such as sclerite deformation, ... | 2002 | 16883705 |
| the digenean fauna of some fish species in the lake ladoga. | in this study, digeneans of 4 cyprinid fishes (bream, ide, white bream, and vimba) from lake ladoga were investigated in may-june 2001-2003. twenty one parasite species were recorded. data on the species composition and intensity in some fishes are presented for each fluke species. the parasite species composition in different host species was compared. the results obtained were compared with earlier data. | 2004 | 16865974 |
| a giant merogonial stage (apicomplexa, coccidia) in the intestine of blicca bjoerkna (l.) (cyprinidae). | a giant meront containing thousands of merozoites has been found in the intestinal epithelium of an adult specimen of white bream (blicca bjoerkna). the taxonomic position of this unusual coccidian stage is discussed. | 1994 | 9140505 |
| implications of gill arch movements for filter-feeding: an x-ray cinematographical study of filter-feeding white bream (blicca bjoerkna) and common bream (abramis brama) | previous research shows that the reducible-channel model of filter-feeding can probably be applied to common bream, but not to white bream. according to this model, zooplankton are retained in the channels between the medial gill rakers; the mesh size of the sieve can be reduced by lowering the lateral rakers of the neighbouring gill arch into these channels. gill arch movements may well disturb this mechanism; the depressed lateral gill rakers will move in and out of the medial channels and als ... | 1994 | 9317761 |
| polymorphism of a, b and c loci of lactate dehydrogenase in european fish species of the cyprinidae family. | in 24 fish species of the cyprinidae family, belonging to 21 genera, isoenzyme patterns of lactate dehydrogenase (ldh) were determined, which could be classified in the majority of cases into 3 main groups. isoenzyme patterns in natural hybrids of roach and rudd, roach and bream, roach and bleak were also analysed. in bitterling, polymorphism was observed in b locus of ldh. in white bream polymorphism exists in the a locus. in bream, rudd, silver carp and barbel polymorphism was found in c loci. ... | 1978 | 751530 |
| [occurrence of tumors in fishes: lipoma in a blicca bjoerkna l. from the havel in berlin]. | | 1975 | 1156335 |
| [roe count in the common roach (rutilus rutilus l.) the red-eye (scardinius erythrophalmus l.) and the white bream (blicca bjoerkna l.) from the virt drainage canal]. | | 1969 | 5393223 |