| [cytochemical characteristics of the labrocyte-like cells in the capsule of the plerocercoids of triaenophorus nodulosus (pallas, 1781) and diphyllobothrium dendriticum (nitzsch, 1824) cestodes]. | out of six fish species examined (esox lucius, paracottus kessleri, perca fluviatilis, leuciscus leuciscus baicalensis, coregonus autumnalis migratorius, thymallus arcticus baicalensis) labrocyte-like cells were detected in esox lucius, leuciscus leuciscus baicalensis, coregonus autumnalis migratotius. the cells contain large metachromatic granules. histochemical methods revealed in them sulfated and carboxylic acid mucopolysacharides. the amount of labrocyte-like cells in the capsules around pl ... | 1977 | 143258 |
| [changes in the argyrophil stroma of the liver of fishes infested with the pleurocercoids, triaenophorus nodulosus and diphyllobothrium dendriticum (cestoidea, pseudophyllidae)]. | the argentaffine stroma of the liver of some fishes (perca fluviatilis, exos lucius, paracottus kessleri, coregonus autumnalis migratorius, thymallus arcticus) is described. the nature and depth of pathological changes in the argentaffine stroma of the liver at its infection with pleurocercoids of pseudophyllids depend on the infection intensity, host's specificity and on the biocoenotic relationships of hydrobionts in a waterbody. | 1977 | 896280 |
| [superoxide dismutase activity and methemoglobin content of human and animal erythrocytes]. | in healthy newborn babies, superoxide dismutase activity and methb content of the erythrocytes are higher than those in adult subjects. it was also demonstrated that low activity of superoxide dismutase in guinea pigs, albino mice and teleost fish coregonus autumnalis (in autumn period) is paralleled by a higher level of methb. on the contrary, high enzymic activity in albino rats and c. autumnalis (spring period) accounts of a lower level of methb. seasonal changes in the activity of superoxide ... | 1988 | 3414217 |
| [ecological and micromorphological aspects of interrelations in myxosporidian--fish parasitic systems]. | a comparative analysis of the character of interactions in five parasitic systems myxosporidians--fishes (myxobolus mülleri-perca fluviatilis, myxobolus ellipsoides-phoxinus percnurus, henneguya zschokkei-coregonus autumnalis migratoris, henneguya cerebralis-thymalus articus nigrescens, sphaerospora pectinacea-perca fluviatilis) is given. | 1986 | 3737234 |
| [parasite communities and a fish spawn]. | high values of dominance index, low values of evenness and shannon index are characteristic of component parasite communities of prespawning (prosopium cylindraceum) and spawn migratory fishes (coregonus autumnalis, oncorhynchus nerka). autogenic specialists are dominant in the component parasite communities of c. autumnalis. the component parasite communities of p. cylindraceum and o. nerka are dominant in a content of generalist species. the o. nerka parasite communities are communities "sente ... | 2002 | 11962200 |
| ichthyocotylurus erraticus (digenea: strigeidae): factors affecting infection intensity and the effects of infection on pollan ( coregonus autumnalis ), a glacial relict fish. | lough neagh pollan are heavily infected with the strigeid ichthyocotylurus erraticus , with 100% prevalence and median infection intensities of 600+ metacercariae in the pericardial cavity of mature fish. female fish were more heavily infected than males. infection intensity, which rose in summer, varied with pollan size, year, sampling bay within the lough and water depth within bays. heavily infected pollan were caught further offshore than lightly infected fish. spatial variation in pollan in ... | 2005 | 16174416 |
| trophodynamics of some pfcs and bfrs in a western canadian arctic marine food web. | the trophodynamics of per- and polyfluorinated compounds and bromine-based flame retardants were examined in components of a marine food web from the western canadian arctic. the animals studied and their relative trophic status in the food web, established using stable isotopes of nitrogen (delta15n), were beluga (delphinapterus leucas) > ringed seal (phoca hispida) > arctic cod (boreogadus saida) > pacific herring (clupea pallasi) approximately equal to arctic cisco (coregonus autumnalis) > pe ... | 2009 | 19569333 |
| prostaglandins e2 and d2-regulators of host immunity in the model parasite diphyllobothrium dendriticum: an immunocytochemical and biochemical study. | the spectrum of immunomodulating molecules produced by tapeworms is not yet well understood. the aims of this study, on the tapeworm diphyllobothrium dendriticum, were: 1) detection and quantification of prostaglandins (pgs) e2 and d2 by high performance liquid chromatography; 2) visualization of pge2 and pgd2 in specific cells, using methods of immunocytochemistry and confocal laser scanning microscopy; and 3) investigation of the ultrastructure of the cells potentially producing pge2 and pgd2. ... | 2017 | 28137629 |
| complete mitochondrial genome of coregonus autumnalis. | the complete mitochondrial genome of coregonus autumnalis is determined in this study. the mitogenome is 16,736 bp in length and contains 13 protein-coding genes, 22 transfer rna genes, 2 ribosomal rna genes and a d-loop region. the overall base composition of the h-strand is 26.73% a, 29.44% c, 18.14% for g and 25.69% for t. the g+c content is 47.58%. in this article, the mitochondrial genome sequencing for coregonus autumnalis is carried out for the first time. | 2016 | 26024145 |
| long-term increases in young-of-the-year growth of arctic cisco coregonus autumnalis and environmental influences. | arctic cisco coregonus autumnalis young-of-year (yoy) growth was used as a proxy to examine the long-term response of a high-latitude fish population to changing climate from 1978 to 2004. yoy growth increased over time (r² = 0·29) and was correlated with monthly averages of the arctic oscillation index, air temperature, east wind speed, sea-ice concentration and river discharge with and without time lags. overall, the most prevalent correlates to yoy growth were sea-ice concentration lagged 1 y ... | 2011 | 21235545 |
| permanent genetic resources: isolation and characterization of microsatellite loci from the arctic cisco (coregonus autumnalis). | eight polymorphic microsatellite loci were isolated and characterized for the arctic cisco, coregonus autumnalis. loci were evaluated in 21 samples from the colville river subsistence fishery. the number of alleles per locus ranged from two to 18. observed heterozygosity of loci varied from 0.10 to 1.00, and expected heterozygosity ranged from 0.09 to 0.92. all eight microsatellite markers were in hardy-weinberg equilibrium. the loci presented here will be useful in describing population structu ... | 2008 | 21585791 |
| [primary structure of dna, complementary for mrna for the baikal omul growth hormone]. | the pregrowth hormone dna was synthesized by polymerase chain reaction from a pituitary gland cdna library of baikal omul (coregonus autumnalis pallas). a cdna was sequenced and found to encode a precursor protein of 210 amino acid residues, which included a putative signal peptide of 22 amino acid residues. sequence comparison reveals close similarity of the omul growth hormone to those of other salmoniformes species. | 2006 | 7990828 |
| [cloning and sequencing the cdna for the beta-subunit of baikal omul gonadotropin]. | two types of cdna encoding gonadotropin beta subunits (gth beta) were isolated from a cdna library prepared from pituitary gland of baikal omul (coregonus autumnalis migratorius georgi). the nucleotide sequences of cdna were determined. the cthi beta and gthii beta cdnas code for polypeptides of 137 and 142 amino acids, respectively. both of them include a putative signal peptide of 24 amino acids. the predicted amino acid structures of omul gonadotropins were compared with those of other verteb ... | 2006 | 7990827 |
| molecular cloning and sequencing of omul prolactin cdna. | we constructed a complementary dna (cdna) library from baikal omul (coregonus autumnalis migratorius georgi) pituitary glands. synthetic oligonucleotide probes corresponding to chum salmon prolactin (prl) cdna were used to select the recombinant plasmids carrying the omul prl gene. the larger insert was sequenced and found to encode a polypeptide of 210 amino acid residues, including a putative signal sequence of 23 amino acids. nucleotide and predicted amino acid sequence of omul prl showed hig ... | 1993 | 8364687 |
| genetic stock assessment of spawning arctic cisco (coregonus autumnalis) populations by flow cytometric determination of dna content. | intraspecific variation in cellular dna content was measured in five coregonus autumnalis spawning populations from the mackenzie river drainage, canada, using flow cytometry. the rivers assayed were the peel, arctic red, mountain, carcajou, and liard rivers. dna content was determined from whole blood preparations of fish from all rivers except the carcajou, for which kidney tissue was used. dna content measurements of kidney and blood preparations of the same fish from the mountain river revea ... | 1991 | 2036920 |
| [change in the architectonics of the egg membranes of the baikal cisco, coregonus autumnalis migratorius, during embryogenesis]. | | 1979 | 460800 |
| [preoptic-hypophyseal neurosecretory system of the baikal salmon, coregonus autumnalis migratorius, during the prespawning period]. | it has been shown that functional condition of the preoptic-hypophyseal neurosecretory system (phns) in the fish studied is associated with the activity of population. during early spring, when the fish are not yet completely active after winter, the phns is characterized by a low level of activity (accumulation of the neurosecretory substance and neurohypophysis, as well as moderate extrusion of the neurosecretory material along the axons beyond the preoptic nucleus). in july, some activation o ... | 2006 | 983569 |