Brown Trout (Salmo trutta L.) reproduct ion in streams of Onezhskoye Pomorye National Park (Arkhangelsk region)
نویسندگان
چکیده
منابع مشابه
Feeding behavior of brown trout, Salmo trutta fario, during spawning season in four rivers of Lar National Park, Iran
Brown trout, Salmo trutta fario, has a wide range of distribution in the north of Iran and in Karaj, Lighvanchai and Karun Rivers, but there is no report about its feeding behavior in some water resources including the Lar Natural Park. In order to study feeding behavior of this fish during spawning season, a survey was carried out in the rivers of Elarm, Aab-Sefid, Kamardasht and Delichayi in ...
متن کاملMorphological differences in the skin of marble trout Salmo marmoratus and of brown trout Salmo trutta.
Despite being genetically very closely related, the marble trout Salmo marmoratus and the brown trout Salmo trutta exhibit marked phenotypic differences, particularly with regard to skin pigmentation. Histological analysis of skin from the head and gill cover of differently aged individuals of the two species was carried out in order to characterize differences in skin structure. The basic stru...
متن کاملSingle and joint gene segregation in intraspecific ž / hybrids of brown trout Salmo trutta L. lineages
Ž . Brown trout Salmo trutta L. stocking practices in French Mediterranean rivers often result in artificial secondary contact and introgression between substantially differentiated genomes. Single and joint segregation at five protein and four microsatellite loci were analysed in two back-crosses Ž . between hybrid females resulting from domestic=Mediterranean genitors and hatchery males in or...
متن کاملInfluence of parental life history on maturation and smoltification in brown trout (Salmo trutta L.)
The developmental pathways of the offspring of three groups of trout, Salmo trutta L., with known life histories were compared: one group from a freshwater resident population and two groups from an anadromous population (fish that have smoltified and fish that have not). The fish were hybridized within a group, and 27 families were obtained and reared mixed in two tanks. Tracking fish specimen...
متن کاملIntracellular Ion Concentrations in Branchial Epithelial Cells of Brown Trout (salmo Trutta L.) Determined by X-ray Microanalysis
The intracellular concentrations of sodium, chloride, phosphorus and potassium under normal conditions in pavement epithelial (PE) cells of brown trout (Salmo trutta) gill were 66, 51, 87 and 88 mmol l-1 respectively. The concentrations of these elements under identical conditions in mitochondria-rich (MR) cells were not significantly different, except for that of chlorine, which was lower in M...
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ژورنال
عنوان ژورنال: Proceedings of the Karelian Research Centre of the Russian Academy of Sciences
سال: 2018
ISSN: 2312-4504,1997-3217
DOI: 10.17076/eco691