Results 21 to 30 of about 1,289 (172)

On fecundity of chum salmon Oncorhynchus keta in the commercial herd at Iturup Island

open access: yesИзвестия ТИНРО, 2023
Absolute fecundity of chum salmon Oncorhynchus keta is investigated for the commercial herd dwelled at Iturup Island. Currently, the herd is formed mostly by fish of hatchery origin but has retained the same species and regional features that ...
A. N. Elnikov, O. V. Zelennikov
doaj   +1 more source

NMR — SPECTROSCOPY TECHNIQUE FOR SALMON FISH SPECIES QUALITY ASSESSMENT

open access: yesПищевые системы, 2019
NMR-spectroscopy was used for development of the criteria which characterize the chilled and frozen fish quality. It has been shown that 1H-NMR experiments can be used as quality factor to measure the concentration of inosine, hypoxanthine and inosine-5’-
L. S. Abramova   +2 more
doaj   +1 more source

The Expression of Leptin, Estrogen Receptors, and Vitellogenin mRNAs in Migrating Female Chum Salmon, : The Effects of Hypo-osmotic Environmental Changes [PDF]

open access: yesAsian-Australasian Journal of Animal Sciences, 2014
Leptin plays an important role in energy homeostasis and reproductive function in fish, especially in reproduction. Migrating fish, such as salmonoids, are affected by external environmental factors, and salinity changes are a particularly important ...
Young Jae Choi   +3 more
doaj   +1 more source

Hexachlorocyclohexane and DDT in marine organisms from the Bering and the Okhotsk Seas

open access: yesИзвестия ТИНРО, 2014
Organochlorine pesticides (HCHs and DDT) are harmful and toxic substances affected biota. HCHs and DDT are still used as pesticides in the Southern Hemisphere and from there can reach the North Pacific due to atmospheric transfer.
Vasily Yu. Tsygankov   +3 more
doaj   +1 more source

Comparative Analysis of the Blood Plasma Metabolome of Negligible, Gradual and Rapidly Ageing Fishes

open access: yesFishes, 2018
There are a number of different animals that belong to long- and short-lived species and show a various rate of ageing, providing an ideal model to investigate mechanisms of longevity. In this work, a metabolome profiling of blood plasma from fishes with
Oxana P. Trifonova   +9 more
doaj   +1 more source

Comparative Analysis of Skeletal Muscle Metabolites of Fish with Various Rates of Aging

open access: yesFishes, 2019
Fish species exhibit great diversity rating of aging (from negligible to rapid), which gives a unique possibility for the discovery of the molecular mechanisms that determine the differences in the rate of aging.
Dmitry L. Maslov   +9 more
doaj   +1 more source

Characteristics of spawners of chum salmon Oncorhynchus keta from commercial stock of Iturup Island

open access: yesИзвестия ТИНРО, 2023
Chum salmon spawners returned for spawning in the rivers of Prostor and Kurilsky Bays on Iturup Island (Kuril Islands, Sakhalin Region) were examined in the period from September 19 to November 4, 2022. Both females and males had mostly the age 3+ (68.8 %
A. N. Elnikov, O. V. Zelennikov
doaj   +1 more source

Identification of Dibothriocephalus nihonkaiensis plerocercoids from the autumn chum salmon Oncorhynchus keta of the Amur River basin by molecular datas

open access: yesРоссийский паразитологический журнал
The purpose of the research is determination of the species belonging to the Dibothriocephalus spp. plerocercoids from the autumn chum salmon Oncorhynchus keta of the Amur River basin based on the analysis of a gene fragment of the first cytochrome c ...
A. G. Dragomeretskaya   +6 more
doaj   +1 more source

Species identification of diphyllobothriosis causative agent Dibothriocephalus nihonkaiensis found in the summer chum O. keta during spawning migration in the Amur River

open access: yesРоссийский паразитологический журнал
The purpose of the research is the species identification of Dibothriocephalus spp. plerocercoids in the summer chum Oncorhynchus keta caught in the Amur River based on analysis of a cytochrome c-oxidase subunit 1 (COX1) gene fragment of mitochondrial ...
A. G. Dragomeretskaya   +5 more
doaj   +1 more source

Dependence of progeny abundance for summer chum salmon (Oncorhynchys keta) in the Amur River on the parents abundance

open access: yesИзвестия ТИНРО, 2016
For almost the century the landings of summer chum salmon in the Amur were approximately in 5 times lower that the landings of fall chum salmon, in spite on almost the same fishing efforts.
Vladimir I. Ostrovsky   +2 more
doaj   +1 more source

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