Results 31 to 40 of about 36,595 (164)

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

Fishes, 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, Oxana P. Trifonova, Anton N. Mikhailov, Konstantin V. Zolotarev, Kirill V. Nakhod, Valeriya I. Nakhod, Nataliya F. Belyaeva, Marina V. Mikhailova, Petr G. Lokhov, Alexander I. Archakov   +9 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

Российский 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, Yu. I. Moskvina, V. O. Kotova, E. V. Podorozhnyuk, O. E. Trotsenko, S. I. Gaer   +5 more
doaj   +1 more source

Ceratomyxa shasta (Myxosporida) Disease in Chum Salmon (Oncorhynchus keta) in British Columbia

, 1975
Infections with the myxosporidan Ceratomyxa shasta Noble, 1950 were confirmed in four juvenile chum salmon (Oncorhynchus keta) caught at sea near Nanaimo in 1965 and 1968. These cases represent a new host record for C.
T. P. T. Evelyn, L. Margolis
core   +1 more source

Characteristics of roe of autumn chum salmon Oncorhynchus keta from the Amur River

Известия ТИНРО, 2021
Chemical composition and nutritional and biological value of roe are investigated for autumn chum salmon from the Amur River sampled during their run for spawning from the estuary to the area of Khabarovsk city.
A. I. Chepkasova, T. N. Slutskaya, E. I. Barabanshchikov   +2 more
doaj   +1 more source

The Presence of Androgens in Chum Salmon (Oncorhynchus keta Walbaum)

, 1954
Testes of mature chum salmon (Oncorhynchus keta Walbaum) were examined histologically for interstitial cells and extracts of testes assayed biologically for the presence of androgens.
William S. Hoar, Gilbert D. Potter
core   +1 more source

Beyond Probiotics: Postbiotics for Healthy Aquaculture

Advanced Science, EarlyView.
This critical review assesses limitations of probiotics and proposes postbiotics, preparations of inanimate microorganisms and their metabolites, as a more stable, controlled, and biosafe formulation. Postbiotics offer significant advantages during industrial aquafeed production and storage. However, their practical implementation is currently hindered
Michael Leonidas Chikindas, Delin Xu, Igor V. Popov, Kayque Ordonho Carneiro, Nilufar Arashovna Elova, Gullola Amirovna Bekmurodova, Dildora Amindjanovna Amirsaidova, Astghik Pepoyan, Shakhlo Mirjamalovna Miralimova, Oleg V. Mitrokhin, Liubov S. Sichel, John Tagg, Svetoslav Dimitrov Todorov   +12 more
wiley   +1 more source

Biological characteristics for the spawners of chum salmon Oncorhynchus keta caught in the Indigirka River in 2023

Известия ТИНРО
The main biological parameters of chum salmon Oncorhynchus keta are presented for the spawners caught during the research expedition conducted to the lower reaches of Indigirka in August-September 2023.
A. I. Nikiforov, L. N. Karpova
doaj   +1 more source

Indigenous sex-selective salmon harvesting demonstrates pre-contact marine resource management in Burrard Inlet, British Columbia, Canada

Scientific Reports, 2021
To gain insight into pre-contact Coast Salish fishing practices, we used new palaeogenetic analytical techniques to assign sex identifications to salmonid bones from four archaeological sites in Burrard Inlet (Tsleil-Waut), British Columbia, Canada ...
Jesse Morin, Thomas C. A. Royle, Hua Zhang, Camilla Speller, Miguel Alcaide, Ryan Morin, Morgan Ritchie, Aubrey Cannon, Michael George, Michelle George, Dongya Yang   +10 more
doaj   +1 more source

Evidence for adaptive explanations of semelparity in animals

Biological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher, Roberto Salguero‐Gómez   +1 more
wiley   +1 more source

Characteristics of adult chum salmon Oncorhynchus keta from the commercial stock at Iturup Island in 2024

Известия ТИНРО
Spawners of chum salmon Oncorhynchus keta were examined in the basins of Prostor and Kurilsky Bays (Iturup Island, Kuril Islands) from September 23 to November 2, 2024. The portion of females naturally increased during the spawning run and was 43.3 %, on
A. N. Elnikov, O. V. Zelennikov
doaj   +1 more source