Results 31 to 40 of about 16,436 (269)

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

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

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

State of stocks of pacific salmons in the basin of Avacha Bay (southeastern Kamchatka) in 1985–2019

open access: yesИзвестия ТИНРО, 2020
State of pacific salmon stocks is considered for the basins of the Avacha and Paratunka Rivers in 1985–2019. Significant decline of the stocks is noted that is associated with anthropogenic impact growth. Total number of producers for five salmon species
G. V. Zaporozhets, O. M. Zaporozhets
doaj   +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

Deterioration of chum salmon muscle during spawning migration. XI. Biochemical characteristics of chum salmon muscle during spawning migration.

open access: yesNIPPON SUISAN GAKKAISHI, 1986
The relation between gonadosomatic index (GSI) value and proximate composition of muscle of chum salmon at each migration stage did not markedly differ with the date and locality of capture. This might suggest that the situation of proximate composition can be characterized by the GSI value.
Seiichi Ando, Mutsuo Hatano
openaire   +2 more sources

Population structure of chum salmon (Oncorhynchus keta) across the Pacific Rim, determined from microsatellite analysis [PDF]

open access: yes, 2009
The Pacific Rim population structure of chum salmon (Oncorhynchus keta) was examined with a survey of microsatellite variation to describe the distribution of genetic variation and to evaluate whether chum salmon may have originated from two or more ...
Beacham, Terry D.   +3 more
core  

Many roads to reservoirs? How susceptibility and shedding shape host competence in amphibians

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Host competence—the ability to acquire, harbour and transmit infections—drives pathogen spread and persistence in multi‐host communities. Evaluating species‐specific competence is critical for predicting transmission, particularly for generalist fungal pathogens like ...
Joseph A. DeMarchi   +7 more
wiley   +1 more source

Amino acid composition of chum salmon gonadotropin.

open access: yesNIPPON SUISAN GAKKAISHI, 1977
The amino acid composition of chum salmon gonadotropin (s-GTH) was compared with that of carp gonadotropin (c-GTH). S-GTH has more glutamic acid and less valine and tyrosine than c-GTH. Moreover s-GTH was compared with the mammalian gonadotropins. S-GTH resembled ovine follicle stimulating hormone (o-FSH) in the number of histidine, arginine, aspartic ...
Tsutomu YONEDA   +2 more
openaire   +1 more source

Determination of population structure and stock composition of chum salmon (Oncorhynchus keta) in Russia determined with microsatellites [PDF]

open access: yes, 2008
Variation at 14 microsatellite loci was examined in 34 chum salmon (Oncorhynchus keta) populations from Russia and evaluated for its use in the determination of population structure and stock composition in simulated mixed-stock fishery samples.
Beacham, Terry D.   +3 more
core  

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