sfii genomic cleavage map of escherichia coli k-12 strain sfii restriction map of escherichia coli k-12 strain mg1655 is presented. the map contains thirty-one cleavage sites separating fragments ranging in size from 407 kb to 3.7 kb. several techniques were used in the construction of this map, including chef pulsed field gel electrophoresis; physical analysis of a set of twenty-six auxotrophic transposon insertions; correlation with the restriction map of kohara and coworkers using the commercially available e. coli gene mapping membranes; analysi ...19921312707
mutations causing aminotriazole resistance and temperature sensitivity reside in gyrb, which encodes the b subunit of dna gyrase.certain mutations in gyra and gyrb, the genes encoding the two subunits of dna gyrase, are known to influence expression of the his operon (k. e. rudd and r. menzel, proc. natl. acad. sci. usa 84:517-521, 1987). such mutations lead to a decrease in trna(his) levels and consequently to an attenuator-dependent increase in his operon expression. this effect presumably is due to the dependence of the hisr promoter (hisr encodes trna(his) on supercoiling for maximal activity. we used a relaxed (rel-) ...19921322887
cd4, cd8 and the tcr-cd3 complex: a novel class of protein-tyrosine kinase receptor.a novel form of receptor-kinase interaction was first described in the interaction between the cd4 and cd8 antigens and the protein-tyrosine kinase p56lck. this linkage, between a regulatory antigen on t cells and a member of a family of intracellular molecules with an established ability to activate and transform cells, is likely to be of great importance in the regulation of t-cell growth. recently, data have been obtained on the molecular basis of regulation of the cd4/cd8-p56lck interaction ...19901964053
cloning and dna sequence of the gene coding for the major sigma factor from myxococcus xanthus.the gene for a sigma factor (rpod) was cloned from myxococcus xanthus, a soil bacterium which differentiates to form fruiting bodies upon starvation for nutrients. the dna sequence of the gene was determined, and an open reading frame encoding a polypeptide of 708 amino acid residues (mr = 80,391) was identified. except for the amino-terminal sequence consisting of 100 residues, the m. xanthus sigma factor (sigma-80) showed extensive similarity with escherichia coli sigma-70 as well as bacillus ...19902104614
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
the production of clostridium botulinum toxin in mammalian, avian and piscine carrion.mice, birds (chicks, quail) and fish (rudd, goldfish) killed shortly after receiving 1300-2000 spores of clostridium botulinum per os were incubated, usually at 23 degrees c for 7 days. a 10% (w/v) homogenate of each rotting carcass was then prepared, sterilized by membrane filtration, and assayed for toxin. in mouse carcasses a type c strain of c. botulinum usually produced greater than 2 x 10(5) mouse intraperitoneal ld/g; in fish carcasses it usually produced less--often much less--than 2 x 1 ...19892661255
[abnormal location of ligula intestinalis l. in scardinius erythrophthalmus l. from lake trasimeno]. 19862944464
species of corynebacterium and pasteurella isolated from diseased salmon, trout and rudd. 19676069150
[further information on fish parasites from lake trasimeno. ii. observations on the population of scardinius erythrophthalmus l].an investigation was carried out to identify the actual state of parasitism in the scardinius erythrophthalmus l. population of trasimeno lake (umbria, italy). seasonal samples of fishes were taken in different points of the litoral and pelagic zones. the parasites found, together with the somatometric values and the characteristics of their localizations are reported. it has been found: a high number of infested specimens; eleven species of parasites, of which five were not yet known to be in t ...19836414493
chemical dissection of stereovilli from fish inner ear reveals differences from intestinal microvilli.a quick method was developed for isolating the stimulus-receiving apparatus (stereovilli = 'stereocilia') from the vestibular apparatus of fish (scardinius erythrophthalmus and rutilus rutilus) in sufficient quantity and purity to study the solubilities and stabilities of their structural elements by electron microscopy. the stereovilli were adsorbed to a support and, after various treatments, negatively stained or metal shadowed after freeze drying. for comparison, and in order to ensure the va ...19846512567
poor evidence for insulin/insulin-like immunoreactivity in the cns of lower vertebrates.the localization of insulin/insulin-like immunoreactivity was studied in the brain and the pancreas of an amphibian (clawed frog [xenopus laevis daudin]) and in the cns of two teleost fishes (bream [abramis brama l.] and rudd [scardinius erythrophthalmus l.] using the indirect immunofluorescence technique. with exception of cerebellar purkinje cells no neuronal elements were found to contain insulin-like material. the frog pancreas was characterized by a strong immunofluorescence in cells produc ...19816795888
neurosecretory nerve cells of rat and fish brain are rich in thiol-protein disulphide oxidoreductase (tpo) immunoreactivity.thio-protein disulphide oxidoreductase (tpo) was demonstrated in rat and fish brain by use of the indirect peroxidase-antiperoxidase technique. tpo immunoreactivity was found to be widely distributed throughout rat cns. whereas most nerve cells possessed only weak immunoreactivity to the enzyme, the neurosecretory cells of nuc. supraopticus and nuc. paraventricularis were heavily laden with immune products. in fishes (rudd) the neurosecret-producing neurons of the nuc. preopticus were the only l ...19827044768
an in situ protocol for measuring the expression of chemically-induced mutations in mammalian cells.the generation of expression curves and the evaluation of mutagenic responses of mammalian cells using standard mutagenesis assays can be inaccurate because mutant and wild-type cells are usually mixed during the expression phase. if some mutant progenitors or mutants grow more slowly than the wild-type cells during the expression period, there will be a decrease in the mutant to wild-type ratio with time and the mutant fraction will not accurately represent the number of mutational events that ...19947510835
a hidden markov model that finds genes in e. coli dna.a hidden markov model (hmm) has been developed to find protein coding genes in e. coli dna using e. coli genome dna sequence from the ecoseq6 database maintained by kenn rudd. this hmm includes states that model the codons and their frequencies in e. coli genes, as well as the patterns found in the intergenic region, including repetitive extragenic palindromic sequences and the shine-delgarno motif. to account for potential sequencing errors and or frameshifts in raw genomic dna sequence, it all ...19947984429
development of proteocephalus torulosus in the intermediate host under experimental conditions.the development of the tapeworm proteocephalus torulosus (batsch, 1786) (cestoda: proteocephalidae), a parasite of cyprinid fish, was studied in the intermediate host under experimental conditions. the eggs of p. torulosus were typified by a relatively small outer envelope (hyaline membrane) and a thick middle layer surrounding the oncosphere. incubation of p. torulosus eggs at different temperatures revealed the ability of some oncospheres to survive and remain infective to the intermediate hos ...19938132977
colibri: a functional data base for the escherichia coli genome.several data libraries have been created to organize all the data obtained worldwide about the escherichia coli genome. because the known data now amount to more than 40% of the whole genome sequence, it has become necessary to organize the data in such a way that appropriate procedures can associate knowledge produced by experiments about each gene to its position on the chromosome and its relation to other relevant genes, for example. in addition, global properties of genes, affected by the in ...19938246843
xbai and blni genomic cleavage maps of escherichia coli k-12 strain mg1655 and comparative analysis of other strains.complete xbai and blni cleavage maps of escherichia coli k-12 strain mg1655 are presented, along with a comparison of the physical map of mg1655 with that of five other k-12 strains. we have mapped 35 xbai cleavage sites generating 35 fragments ranging in size from 8 kb to 432 kb using methods similar to those used previously for the noti and sfii maps of mg1655. the applicability of the mg1655 map to other strains of e. coli k-12 was assessed by comparing the noti, sfii and xbai digestion patte ...19938393935
mechanisms of chemotherapy/radiotherapy-induced emesis in animal models.animal models of chemotherapy/radiotherapy-induced emesis successfully predicted the clinical efficacy of the 5-ht3 receptor antagonists for the control of acute emesis. further studies in animals have provided valuable information relating to the pathophysiology of emesis and the mechanism of action of 5-ht3 receptor antagonists. these agents inhibit emesis by blocking the action of 5-ht at 5-ht3 receptors on the vagus nerve in the gastrointestinal tract and in the hindbrain vomiting system. 5- ...19968692557
clinical pharmacokinetics of ondansetron. a review.5-ht3 receptors are ubiquitous in the enteric, sympathetic, parasympathetic and sensory nervous systems and in the central nervous system (cns) (kilpatrick et al 1990). in man 5-ht3 receptors are mainly situated on enterochromaffin cells in the gastrointestinal mucosa, which are innervated by vagal afferents (reynolds et al 1989), and the area postrema of the brain stem, which forms the chemoreceptor trigger zone. ondansetron is a selective antagonist at 5-ht3 receptors. it is 100 times more pot ...19968887724
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 ...19969060173
linkage map of escherichia coli k-12, edition 10: the traditional map.this map is an update of the edition 9 map by berlyn et al. (m. k. b. berlyn, k. b. low, and k. e. rudd, p. 1715-1902, in f. c. neidhardt et al., ed., escherichia coli and salmonella: cellular and molecular biology, 2nd ed., vol. 2, 1996). it uses coordinates established by the completed sequence, expressed as 100 minutes for the entire circular map, and adds new genes discovered and established since 1996 and eliminates those shown to correspond to other known genes. the latter are included as ...19989729611
long-term dynamics of ligula intestinalis and roach rutilus rutilus: a study of three epizootic cycles over thirty-one are presented on 2 full epizootic cycles and the start of a third of ligula intestinalis in roach rutilus rutilus in a small lake, and the relationships of these cycles to the densities of rudd, scardinius erythrophthalmus, and great crested grebes, podiceps cristatus, over 31 years. the parasite was introduced to the lake by p. cristatus in 1973 at a time when the roach population had increased in response to eutrophication to a level at which individual fish growth was stunted and the hit ...200111578089
lnk adaptor: novel negative regulator of b cell lymphopoiesis.originally thought to have the functions now ascribed to the linker for activation of t cells protein (lat), lnk is coming into its own as an adaptor protein that mediates signaling through several receptor pathways. an essential role for lnk in b cell development and maturation was recently uncovered by perlmutter and colleagues. rudd discusses the role of lnk in b cells and hypothesizes a mechanism whereby lnk, and its closely related protein family members, the adaptor molecules containing pl ...200111752654
mcnp modelling of the wall effects observed in tissue-equivalent proportional counters.tissue-equivalent proportional counters (tepcs) utilise tissue-equivalent materials to depict homogeneous microscopic volumes of human tissue. although both the walls and gas simulate the same medium, they respond to radiation differently. density differences between the two materials cause distortions, or wall effects, in measurements, with the most dominant effect caused by delta rays. this study uses a monte carlo transport code, mcnp, to simulate the transport of secondary electrons within a ...200212194327
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
effect of amino acids on steady-state growth of a group a hemolytic streptococcus.davies, helen c. (university of pennsylvania, philadelphia), fred karush, and joanne h. rudd. effect of amino acids on steady-state growth of a group a hemolytic streptococcus. j. bacteriol. 89:421-427. 1965.-a study has been made of amino acid utilization by a strain of type 4, group a streptococcus growing under steady-state conditions in a continuous-culture device and supplied with a completely synthetic medium. at a fixed growth rate, corresponding to a generation of time of 84 min, and wit ...196514255710
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 ...200616943040
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.200617007335
[occurrence of helminths during spring and autumn months on rudd (scardinus erythrophthalmus l. 1758) from kocadere stream (bursa)].the aim of this study was to determine the rate of helminth infection in rudd, (scardinus erythrophthalmus l. 1758) between spring and autumn seasons. a total of 87 rudd fish were investigated. of these, 66 were infected with four species [dactylogyrus difformis (monogenea), diplostomulum spathaceum metacerceria with asymplodora markewitschi (digenea), and hysterothylacium sp. (nematoda)]. during the study, it was noted that 46 out of 87 hosts were infected with d. difformis . the level of infec ...200617124668
selective exploitation of large pike esox lucius--effects on mercury concentrations in fish populations.the present study outlines two main trends of mercury transfer patterns through the fish community: 1) the hg concentrations increase with increase in the trophic level, with top predators having the highest concentrations, and 2) a fast growth rate may dilute the concentrations of hg in fish muscle tissue (growth biodilution). in 2004, an extensive reduction in number of large pike (esox lucius l.), was initiated by selective gillnet fishing in lake arungen, norway, in order to increase the pik ...200818485450
helminth communities of the rudd scardinius erythrophthalmus (cypriniformes, cyprinidae) from srebarna biosphere reserve, bulgaria.a total of 180 individuals of scardinius erythrophthalmus from srebarna lake, north-east bulgaria, were examined for helminth parasites during spring, summer and autumn of 2005-2006 (30 specimens per season). helminth parasites were recorded in 166 individuals (92.2%). ten helminth species were found: trematodes--metacercariae of posthodiplostomum cuticola, diplostomum chromatophorum and d. spathaceum; monogeneans--dactylogyrus difformis, d. difformoides and diplozoon scardinii; cestodes--metace ...200818593505
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 ...200818709543
australian government health advisory groups and health policy: seeking a horse, finding a camel.since its election, the rudd labor government has created 10 new advisory bodies in the health portfolio, in addition to the 100 or more that were already established. an expansive and devolved advisory system could improve the health policy-making process, but only if it is integrated into the processes of government. we outline eight simple and practical measures that, if implemented, would make australia's health advisory system more transparent and effective. past experience shows that the m ...200819012559
prevalence and sequence comparison of phyllodistomum folium from zebra mussel and from freshwater fish in the ebro river.we utilised dna analysis to detect the presence of the digenean phyllodistomum folium in three cyprinid species, scardinius erythrophthalmus, cyprinus carpio and rutilus rutilus. dna sequencing of the region containing the genes its1-5.8s-its2 revealed 100% sequence identity between dna from the sporocysts found in zebra mussels and dna from adults located in the urinary system of 29 cyprinid fish. a second genetically different (variation=1.6%) sequence was observed in two samples from r. rutil ...201020971214
[compared parasitic infection of ligula intestinalis (cestoda: diphyllobothridae) in cyprinidae species: rutilus rubilio and scardinius erythrophthalmus in two dam reserves in tunisia].monitoring quantitative parameters of parasitism by ligula intestinalis (cestoda: diphyllobothridae) was performed by examining 516 fish belonging to two introduced freshwater species: rutilus rubilio (350 individuals) and scardinius erythrophthalmus (166 individuals). these fish were collected in two dam reserves in tunisia, sidi salem and nebhana. the analysis of the aquatic bird's composition in these two reserves revealed the existence of piscivorous bird species that were previously reporte ...201021077391
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
accumulation of enod2-like transcripts in non-nodulating woody papilionoid legumes.japanese pagodatree (styphnolobium japonicum [l.] schott) and american yellowwood (cladrastis kentukea dum.-cours.) rudd are the first woody, non-nodulating papilionoid legumes shown to possess putative early nodulin 2 (enod2) genes. enod2 cdnas from japanese pagodatree (807 bp) and american yellowwood (735 bp) have 75% to 79% sequence identity to enod2 sequences and encode deduced proteins that possess conserved enod2 pentapeptides (pphek and ppeyq). lower percentages of glucose and higher perc ...200011027723
[nosoareas of clonorchiasis in the primorye territory].the mammalian liver parasite (clonorchis sinensis flukes) has spread in the primorye territory. the areas of the first intermediate hosts for the parasite mollusks of the genus parafossarulus have been found to recently become wider south-western predominantly due to lotus acclimatization, resulting in the expansion of a parasite habitation area. the intensity of newly formed foci of clonorchiasis is an order of magnitude greater than that of natural ones and they are a higher hazard since they ...201222774498
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 ...201626898591
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 ...200415127298
a review of fish lectins.lectins have been reported from various tissues of a diversity of fish species including japanese eel, conger eel, electric eel, bighead carp, gibel carp, grass carp, arabian gulf catfish, channel catfish, blue catfish, catfish, pike perch, perch, powan, zebrafish, toxic moray, cobia fish, steelhead trout, japanese trout, atlantic salmon, chinook salmon, olive rainbow smelt, rainbow smelt, white-spotted charr, tilapia, blue gourami, ayu, potca fish, spanish mackerel, gilt head bream, tench, roac ...201525929869
concentrations of microcystins in tissues of several fish species from freshwater reservoirs and ponds.the aim of this study is to summarise the determination of concentrations of microcystins (mcs) in muscle and liver of freshwater fish species caught in stagnant waters of the czech republic. within the years 2007-2009, 351 muscle samples and 291 liver samples of 16 freshwater fish species derived from four fishponds, and four water reservoirs were analysed. mcs were detected in 53 liver samples. the highest concentrations of microcystins were determined in liver samples of carnivorous fish spec ...201323756815
a fine structural review on the spermatozoa of cyprinidae with attention to their phylogenetic implications.the fine structural organization and dimensions of spermatozoa from species of 4 subfamilies of the cyprinidae (barbus barbus, carassius carassius, cyprinus carpio carpio, cyprinus carpio haematopterus, abramis brama, alburnoides bipunctatus, alburnus alburnus, chalcalburnus chalcoides mento, chondrostoma nasus, hypophthalmichthys molitrix, leuciscus cephalus, phoxinus phoxinus, rutilus rutilus, rutilus meidingerii, scardinius erythrophthalmus, vimba vimba and ctenopharyngodon idella) are compar ...200919688692
differential host utilisation by different life history stages of the fish ectoparasite argulus foliaceus (crustacea: branchiura).in this study we examine differences in the occurrence of life history stages of the destructive fish ectoparasite argulus foliaceus (l., 1758) on eight fish species (stickleback, rudd, roach, gudgeon, bream, tench, crucian carp and common carp) sampled from a mixed-species recreational fishing lake on nine occasions during late spring and summer. total numbers ofa. foliaceus, as well as the number of larval, juvenile and adult parasite stages, from each fish were recorded along with the fish sp ...200818666418
correlation of myofibrillar atpase activity and myosin heavy chain content in ventricular and atrial myocardium of fish the fish heart, ventricular and atrial muscles contain different isoforms of native myosin and myosin heavy chain (myhc) but the significance of this diversity is still not known. we have analysed ventricular and atrial myocardium of six freshwater fish species (goldfish, roach, bream, rudd, perch and pike-perch) using histochemical staining for myofibrillar atpase activity as well as non-denaturing and sds gel electrophoreses for native myosin and myhc content. in the range of fish species s ...200111261544
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
food supply and prey selection in planktivorous small bavarian lakes, the gut contents of the cyprinid fish roach (rutilus rutilus), rudd (scardinius erythrophtalamus), bream (abramis brama) and bleak (alburnus alburnus), and the actural food supply during the fish's feeding period were examined in relation to the species composition of zooplankton. accompanied by feeding experiments in the laboratory, the selective effect of fish predation could be attributed to the distribution patterns of prey and predator in time and space, to the prey ...198228310615
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
diel pattern of pelagic distribution and feeding in planktivorous fish.the spatial distribution of juvenile roach (rutilus rutilus), rudd (scardinius erythrophtalamus), bream (abramis brama) and bleak (alburnus alburnus) was registered by echosounding during two years in small bavarian lakes. the gut contents of the fish were analysed in order to reconstruct their rhythmicity of food intake. fish were found in the pelagic zone only during the night, feeding before midnight with maximal rate. the vertical position of the fish was dependent on the water transparency ...197928310293
myxobolus erythrophthalmi sp. n. and myxobolus shaharomae sp. n. (myxozoa: myxobolidae) from the internal organs of rudd, scardinius erythrophthalmus (l.), and bleak, alburnus alburnus (l.).during a survey of myxosporean parasites of cyprinid fish in hungary, infections caused by unknown myxobolus spp. were found in the internal organs of rudd, scardinius erythrophthalmus, and bleak, alburnus alburnus. small plasmodia developed in blood vessels of the kidney, liver, testes and intestinal wall. the parasites were studied on the basis of spore morphology and by histological and molecular methods. in most cases, plasmodia were surrounded by host tissue without a host reaction; however ...200919309417
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
 cleaning symbioses are described for the first time between fresh water fishes in their natural habitat. the symbioses are only facultative and were observed intra-and intorspecifically between members of the species rhodeus amarus, alburnus alburnus, tinca, tinca and juvenile rutilus rutilus, scardinius erythrophthalmus and perca fluviatilis.when the motivation to become cleaned is transmitted within a school of fish, mutual cleaning and inviting each other is common. the first stage in cleanin ...197128310757
fatty acid composition of freshwater wild fish in subalpine lakes: a comparative this study, the proximate and fatty acid compositions of the muscle tissue of 186 samples of fish belonging to fifteen species of freshwater fish harvested in subalpine lakes (bleak, shad, crucian carp, whitefish, common carp, pike, black bullhead, burbot, perch, italian roach, roach, rudd, wels catfish, chub and tench) were investigated. most of the fish demonstrated a lipid content in the fillet lower than 2.0 g 100 g(-1) wet weight (range 0.6-9.7). a strong relationship between feeding beh ...201525519933
morphology and molecules reveal the alien posthodiplostomum centrarchi hoffman, 1958 as the third species of posthodiplostomum dubois, 1936 (digenea: diplostomidae) in europe.metacercariae of two species of posthodiplostomum dubois, 1936 (digenea: diplostomidae) were subjected to morphological and molecular studies: p. brevicaudatum (von nordmann, 1832) from gasterosteus aculeatus (l.) (gasterosteiformes: gasterosteidae), bulgaria (morphology, cox1 and its1-5.8s-its2) and perca fluviatilis l. (perciformes: percidae), czech republic (morphology, cox1, its1-5.8s-its2 and 28s); and p. centrarchi hoffman, 1958 from lepomis gibbosus (l.) (perciformes: centrarchidae), bulg ...201728062983
[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 ...201625507624
[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 ...201625427374
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 ...201222220895
polymorphism of a, b and c loci of lactate dehydrogenase in european fish species of the cyprinidae 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. ...1978751530
the use of environmental dna in invasive species surveillance of the great lakes commercial bait trade.over 180 non-native species have been introduced in the laurentian great lakes region, many posing threats to native species and ecosystem functioning. one potential pathway for introductions is the commercial bait trade; unknowing or unconcerned anglers commonly release unused bait into aquatic systems. previous surveillance efforts of this pathway relied on visual inspection of bait stocks in retail shops, which can be time and cost prohibitive and requires a trained individual that can rapidl ...201525169113
fatty acid composition of the muscle lipids of five fish species in işıklı and karacaören dam lake, 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
metal bioaccumulation in common carp and rudd from the topolnitsa reservoir, bulgaria.concentrations of arsenic (as), cadmium (cd), copper (cu), nickel (ni), lead (pb), and zinc (zn) were determined in water samples and five fish organs (gills, liver, kidney, spleen, and muscle) of common carp (cyprinus carpio l.) and common rudd (scardinius erythrophthalmus l.) from the topolnitsa reservoir (bulgaria) in three seasons (spring, summer, and autumn). this water ecosystem is located in a copper mining and metallurgical region. water metal concentrations were significantly higher in ...201424620011
synthetic musks in the environment. part 2: enantioselective transformation of the polycyclic musk fragrances hhcb, ahtn, ahdi, and atii in freshwater fish.a method for the enantioselective separation of the chiral polycyclic musks hhcb, ahtn, ahdi, and atii is presented. eighteen fish samples (rudd, tench, crucian carp, eel) and one pooled zebra mussel sample from the pond of a municipal sewage treatment plant were investigated with regard to their concentrations and the enantiomeric ratios (ers) of polycyclic musks. in addition, three water samples taken at the effluent of the sewage plant, as well as two water samples and two series of semiperme ...200211994786
synthetic musks in the environment. part 1: species-dependent bioaccumulation of polycyclic and nitro musk fragrances in freshwater fish and mussels.bioaccumulation of polycyclic musks (hhcb, ahtn) and nitro musks (musk xylene, musk ketone, and their amino metabolites) in aquatic biota was investigated by analyzing 18 fish samples (rudd, tench, crucian carp, eel) and 1 pooled zebra mussel sample from the pond of a municipal sewage treatment plant. furthermore, water samples taken at the effluent of the sewage plant as well as water samples and two series of semipermeable membrane devices (spmds) from the pond were included. this comprehensiv ...200211994785
biosynthesis of lipids and fatty acids in skin and body of a fresh water carp, "scardinius erythrophthalmus" l., after the injection of (1- 14 c) sodium acetate. 19714107869
biosynthesis of fatty acids and cholesterol in a fresh-water carp, "scardinius erythrophthalmus" from sodium acetate-1-14c. 19694188405
proteolytic activity in some freshwater animals and associated microflora in a wide ph range.proteolytic activity in some freshwater animals (crustacean plankton, sandhopper amphipoda sp., larvae of chironomids chironomus sp., oligochaetes oligohaeta sp., dreissena dreissena polymorpha, roach rutilus rutilus heckelii, rudd scardinius erythrophthalmus, ruff acerina cernua, and monkey goby neogobius fluviatilis) prevailing within the food of fishes of various ecological groups as well as in their associated microflora in a wide ph range was investigated. it has been shown that the optimum ...201727681591
total mercury in sediments, macrophytes, and fish from a shallow steppe lake in eastern austria.during summer 2011, samples of sediment, macrophytes, and fish tissues from the shallow, slightly alkaline lake neusiedl, austria, were evaluated for their total hg content. this is the first report of hg levels from this lake. sediments displayed hg contents between 0.025 and 0.113 μg g(-1) dw (dry weight), significantly correlating with the proportion of organic components pointing to a small anthropogenic impact on the lake's hg content. hg levels in plants and fish were unexpectedly high: bo ...201425146770
epidemiology of squamous cell carcinomas in rudd scardinius erythrophthalmus from se epidemiological study was carried out to investigate the possible aetiology of squamous cell carcinomas which occur in a population of rudd scardinius erythrophthalmus (l.) from lough aderry in south-east ireland. a total of 1343 rudd were sampled from lough aderry and 2 nearby small lakes in spring, summer, autumn, and winter over 2 yr, 1986 to 1988. fish were weighed, measured, sexed, aged, and examined for lesions. water quality parameters and natural radioactivity were assessed as possibl ...200818717067
experimental evidence for interactive habitat segregation between roach (rutilus rutilus) and rudd (scardinius erythrophthalmus) in a shallow eutrophic lake.the competitive interactions between roach (rutilus rutilus) and rudd (scardinius erythrophthalmus) were investigated in two habitats, the open water and the waterlily zone. the growth rates of both species in enclosures were lower when confined together than when alone, demonstrating interspecific competition. allopatric roach had the highest growth rate in both habitats although the open water was preferred. the diets of both species were dominated by zooplankton in both the open water and wat ...198728311400
parasite fauna of introduced pumpkinseed fish lepomis gibbosus: first british record of onchocleidus dispar (monogenea).a survey of pumpkinseed lepomis gibbosus from a stillwater fishery in southern england revealed infections by the ancyrocephalid monogenean onchocleidus dispar at 100% prevalence. host specificity of o. dispar to north american centrarchid fish suggests that it is a non-native parasite, introduced to britain with l. gibbosus. mean intensity of o. dispar was significantly higher in male (25.5 parasites) compared to female (15) and immature (7) hosts, but was not influenced by host standard length ...201122235596
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