Results 21 to 30 of about 1,835 (185)

BASIS FOR SELECTION OF RIVERS FOR MONITORING ON THE STOCKS OF CHUM AND PINK SALMON IN THE AMUR RIVER

open access: yesИзвестия ТИНРО, 2019
The monitoring of chum and pink salmon escapement to spawning grounds in the Amur River basin was stopped in 2009. To start it again, a proved choice of the rivers is necessary for adequate controlling of these species number, by the spawning habitats of
S. F. Zolotukhin
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

Tryptophan requirement of chum salmon fry.

open access: yesNIPPON SUISAN GAKKAISHI, 1985
Quantitative tryptophan requirement of chum salmon Oncorhynchus keta fry was determined by feeding purified diets containing crystalline L-amino acids and 5% casein as nitrogen sources for 4 weeks. The basal diet was isonitrogenously supplemented with graded levels (0.05, 0.08, 0. 16, 0.24, 0.32, 0.40, 0.48 and 0.56% in diet) of tryptophan by adjusting
AKIYAMA, Toshio   +3 more
openaire   +2 more sources

THE BEHAVIOR AND AMBIENT TEMPERATURE OF HOMING CHUM SALMON MONITORED BY A DATA LOGGER (19th Symposium on Polar Biology)

open access: yes, 1998
P(論文)We studied the behavior of homing chum salmon in coastal waters using a data logger tagging method that will increase the duration of study and sample size without tracking effort We used data loggers, which can record the depth data and the ...
NAITO, Yasuhiko   +7 more
core   +1 more source

Comparison of the swimming ability and upstream-migration behavior between chum salmon and masu salmon [PDF]

open access: yes, 2014
The spawning ground of chum salmon (Oncorhynchus keta) is usually located farther downriver than that of masu salmon (Oncorhynchus masou) in Hokkaido, Japan.
Sakashita, Taku   +6 more
core   +1 more source

Freshwater feeding by adult chum salmon Oncorhynchus keta in the Mackenzie River, Northwest Territories

open access: yesFrontiers in Ecology and Evolution
As distributional shifts of marine species into the Arctic become more frequent, these range-expanding individuals may exhibit unique traits that facilitate survival and establishment in new places.
Karen M. Dunmall   +4 more
doaj   +1 more source

Landscape Structure and Species Interactions Drive the Distribution of Salmon Carcasses in Coastal Watersheds

open access: yesFrontiers in Ecology and Evolution, 2019
The disproportionate effects of some species can drive ecosystem processes and shape communities. This study investigates how distributions of spawning Pacific salmon within streams, salmon consumers, and the surrounding landscape mediate the ...
Joel M. S. Harding   +11 more
doaj   +1 more source

Electronic Supplementary Material: Can reduced predation offset negative effects of sea louse parasites on chum salmon?

open access: yes, 2013
The .zip file contains R code and data that accompanies the paper \"Can reduced predation offset negative effects of sea louse parasites on chum salmon?\".
Stephanie Peacock
core   +1 more source

CHEMICAL COMPOSITION AND ENERGY CONTENT OF PACIFIC SALMONS IN THE OKHOTSK SEA

open access: yesИзвестия ТИНРО, 2019
The main bioenergetic parameters of pacific salmons are presented on the data obtained in marine expeditions in 2003–2015. Among the examined species, the minimum energy content is registered in the muscle tissue of chum salmon and pink salmon, and the ...
K. M. Gorbatenko   +3 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

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