Results 121 to 130 of about 370 (155)

Evaluating ecosystem caps on fishery yield in the context of climate stress and predation. [PDF]

open access: yesEcol Appl
Rovellini A   +17 more
europepmc   +1 more source

Effects of spawning temperature on the reproductive characteristics of walleye pollock Gadus chalcogrammus

Fisheries Science, 2019
Reproductive characteristics under different water temperature regimes were examined in hatchery-reared walleye pollock Gadus chalcogrammus. The fish had been cultured for 33 months post-hatching before the experiment, and the first spawning was observed from 24 to 27 months post-hatching.
Hiroshige Tanaka   +2 more
exaly   +2 more sources

Polymorphism of Walleye Pollock Gadus chalcogrammus Mitochondrial DNA Control Region in the Asiatic Part of the Range and its Phylogeographic History

Journal of Ichthyology, 2022
The phylogeographic analysis of Gadus chalcogrammus from the Asian part of the range (the western part of the Bering Sea, the Sea of Okhotsk and the Sea of Japan, the Pacific waters of the Kuril Islands and Kamchatka) based on data on the polymorphism of the mtDNA control region fragment (D-loop, 526 bp) was performed for the first time using large ...
S Yu Orlova, A M Orlov, Orlova S Yu
exaly   +3 more sources

Effects of starvation at the first feeding stage on the survival and growth of walleye pollock Gadus chalcogrammus larvae

Fisheries Science, 2015
The effects of starvation at the first feeding stage on the survival and growth of walleye pollock Gadus chalcogrammus larvae were examined in rearing experiments performed in the laboratory. Newly hatched larvae grown at 2 °C, 5 °C, and 8 °C that commenced feeding at 3, 2, and 1 days post-hatching (dph) exhibited yolk exhaustion at 8, 8, and 5 dph and
Toru Nakagawa   +2 more
exaly   +2 more sources

Feeding of Walleye Pollock Gadus chalcogrammus (Gadidae) in the Epipelagic Zone of the Bering Sea

Journal of Ichthyology
From 1982–1990 to 2006–2010 in the western part of the Bering Sea biomass of the walleye pollock Gadus chalcogrammus decreased by almost an order of magnitude, from 7.2 to 0.7 million tons. However, in the last decade (2011–2020) its biomass increased to the long-term average value (4.0 million tons). In the eastern part of the sea, the pollock biomass
K M Gorbatenko, Gorbatenko K M
exaly   +2 more sources

Invader's portrait: Biological characteristics of walleye pollock Gadus chalcogrammus in the western Chukchi Sea

Deep Sea Research Part II: Topical Studies in Oceanography, 2022
Presented here are data on the size composition and age structure, the sex ratio, the state of maturity of the gonads, and the composition of the diet and feeding habits of walleye pollock in the western Chukchi Sea, based on 2003-2020 bottom and mid-water trawl surveys conducted onboard Russian research vessels. During all years of research, mid-water
Pavel O. Emelin   +5 more
openaire   +2 more sources

On the estimation of egg production of walleye pollock (Gadus chalcogrammus) in the canyons of Avachinsky Gulf

The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean, 2022
Total egg production in the “reference” points of canyons, date of peak spawning, duration of spawning and coefficients of egg losses are evaluated in this work on the data of ichthyoplankton survey math simulation for the canyons of Avacha Gulf for 2014–2018.
O. I. Ilyin, D. Ya. Saushkina
openaire   +1 more source

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