Results 151 to 160 of about 549 (182)
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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
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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
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Journal of Fish Biology, 2016
Potential fecundity models of walleye or Alaska pollock Gadus chalcogrammus in the Pacific waters off Hokkaido, Japan, were developed. They were compared using a generalized linear model with using either standard body length (LS) or total body mass (MT) as a main covariate along with Fulton's condition factor (K) and mean diameter of oocytes (DO) as ...
H, Tanaka, T, Hamatsu, K, Mori
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Potential fecundity models of walleye or Alaska pollock Gadus chalcogrammus in the Pacific waters off Hokkaido, Japan, were developed. They were compared using a generalized linear model with using either standard body length (LS) or total body mass (MT) as a main covariate along with Fulton's condition factor (K) and mean diameter of oocytes (DO) as ...
H, Tanaka, T, Hamatsu, K, Mori
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Russian Journal of Marine Biology, 2021
Five consecutive ichthyoplankton surveys were conducted during the spawning season of the walleye pollock Gadus chalcogrammus, in April and May 2019, at a spawning ground off the western coast of the Kamchatka Peninsula. Daily walleye pollock egg production was estimated for each survey based on the number of spawned eggs recorded.
A. V. Buslov, A. V. Smirnov
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Five consecutive ichthyoplankton surveys were conducted during the spawning season of the walleye pollock Gadus chalcogrammus, in April and May 2019, at a spawning ground off the western coast of the Kamchatka Peninsula. Daily walleye pollock egg production was estimated for each survey based on the number of spawned eggs recorded.
A. V. Buslov, A. V. Smirnov
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Population Dynamics of Demersal Fish Focusing on Walleye Pollock (Gadus chalcogrammus)
2018Demersal fishes constitute a high trophic level in marine ecosystems. They have relatively long lifespans, and because their biomass does not easily recover after collapse, they are considered more vulnerable to overfishing than pelagic fishes. Like pelagic fishes, the population dynamics of demersal fishes are closely linked to environmental changes ...
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A quantitative evaluation of the pollock Gadus chalcogrammus restocking programme in South Korea
Canadian Journal of Fisheries and Aquatic SciencesThe collapse of the Korean pollock ( Gadus chalcogrammus) stock in the late 1990s is hypothesised to be due to environmental changes, overexploitation, or a combination of both factors. However, due to limited data availability, no conclusive scientific analysis is available to support any of these hypotheses.
Kyuhan Kim, Philipp Neubauer
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Feeding of Walleye Pollock Gadus chalcogrammus (Gadidae) in the Epipelagic Zone of the Bering Sea
Voprosy ihtiologiiFrom 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 +2 more
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Midwater trawling is a critical component of acoustic-trawl fisheries surveys, and it is used to determine the species and size composition of acoustically sampled fish schools. Changes in midwater trawl gear can influence the catch, and therefore potentially bias the survey data.
Williams, K., Kotwicki, S.
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Williams, K., Kotwicki, S.
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A Stochastic Growth Model of the Pollack Gadus chalcogrammus (Pallas, 1814)
Russian Journal of Marine Biology, 2023openaire +1 more source
THE JOURNAL OF FISHERIES AND MARINE SCIENCES EDUCATION, 2022
So-Hee JEON +6 more
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So-Hee JEON +6 more
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