Results 11 to 20 of about 6,270 (213)
Marine Subsidies Fortify a Stronghold for a Freshwater Megafish (Hucho taimen)
Conservation LettersTaimen—the largest salmonids in the world—are among the most at‐risk groups of freshwater megafish. The Tugur River in the Russian Far East is perhaps the greatest stronghold of Siberian taimen (Hucho taimen) and large runs of anadromous chum salmon ...
Martin C. Arostegui +3 more
doaj +2 more sources
Change in plasma cortisol and glucose levels of Oncorhynchus keta according to water temperature
Fisheries and Aquatic Sciences, 2023 Chum salmon (Oncorhynchus keta) is a species of anadromous salmonid inhabiting coastal rivers in the North Pacific and the Arctic in the Bering and is the most widely distributed among Pacific salmon species.
Young Seok Seo +4 more
doaj +1 more source
Известия ТИНРО, 2023 A quasi-cyclicity associated with variability of environmental conditions is detected for the regression residuals of the stock-recruitment model for chum salmon Oncorhynchus keta in the Okhotsk district, described by Ricker’s equation.
V. I. Ostrovsky
doaj +1 more source
Environmental DNA, 2021 Over the last century, anthropogenic activities have caused substantial declines in the abundance of chum salmon (Oncorhynchus keta) throughout their range in western North America.
Kristen M. Homel +5 more
doaj +1 more source
Shifting phenology of an endangered apex predator mirrors changes in its favored prey
Endangered Species Research, 2022 The timing, or phenology, of predator activity in relation to their prey is critical for survival and fitness, yet rarely quantified for marine species, even those of conservation concern.
AK Ettinger +6 more
doaj +1 more source
Известия ТИНРО, 2023 Population dynamics and size-age structure are analyzed for the chum salmon herd formed in the Prostor and Kurilsky Bays of Iturup Island (Kuril Islands). Release of chum juveniles into the waters of the bays increased from 10.7.106 ind. in 1996 to 197.6.
A. N. Elnikov, O. V. Zelennikov
doaj +1 more source
On fecundity of chum salmon Oncorhynchus keta in the commercial herd at Iturup Island
Известия 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
Environmental DNA revealed the fish community of Hokkaido Island, Japan, after invasion by rainbow trout [PDF]
Biodiversity Data Journal, 2020 In freshwater ecosystems, invasive salmonid fishes can have a significant impact on native fish species. Detecting the invasion and its negative effects is critical for the conservation of native fish communities.
Akio Imamura +3 more
doaj +3 more sources
Egg Lipids of a Salmon, Oncorhynchus keta-II
NIPPON SUISAN GAKKAISHI, 1958 Unfertilized and fertilized (after 24 hours) salmon eggs, previously treated with acetone, were successively extracted with ethanol, petroleum ether and finally with boiling ethanol to yield lecithins, cephalins and sphingolipids as shown in Fig. 1.
Koichi ZAMA +2 more
openaire +3 more sources
NMR — SPECTROSCOPY TECHNIQUE FOR SALMON FISH SPECIES QUALITY ASSESSMENT
Пищевые 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