Results 81 to 90 of about 44,537 (207)

Variation in the distribution of walleye pollock (Theragra chalcogramma) with temperature and implications for seasonal migration [PDF]

open access: yes, 2005
Aspects of the feeding migration of walleye pollock (Theragra chalcogramma) in the eastern Bering Sea (EBS) were investigated by examining the relationship betweentemperatures and densities of fish encountered during acoustic and bottom trawl surveys ...
Kotwicki, Stan   +3 more
core  

Variability of stock status walleye pollock fishery

open access: yesProblems of Fisheries
The analysis of the variability of walleye pollock stocks assessment and fisheries showed that in most areas the degree of exploitation is at a low level (4,7–13,5%), with the exception of the Navarinsky region of the Bering Sea, the coast of eastern Kamchatka, the northern Kuril Islands and western Sakhalin (16,7–18,9%).
openaire   +1 more source

Long‐Term Changes in Dominant Fisheries Species and Their Relationship With Surface Oceanic Conditions in the Waters Around the Korean Peninsula From 1980 to 2019

open access: yesFisheries Oceanography, Volume 35, Issue 2, Page 267-284, March 2026.
ABSTRACT The waters surrounding Korea are an economically–ecologically important region due to their high fishery productivity and role as seasonal migratory routes for the spawning and growth of commercially valuable species. We evaluated temporal changes in dominant fisheries species in encompassing large marine ecosystem (LME) areas 47, 48, and 50 ...
Kyunghwan Lee, Myeong‐Taek Kwak
wiley   +1 more source

Basic trophological elements of walleye pollock and its food supply

open access: yesTrudy VNIRO, 2022
Objectives: to study the features of the trophology of pollock of different sizes, to identify the dominant species, according to which the seasonal and interannual dynamics of its food supply should be considered in plankton.Methods used: to solve the problem, TINRO databases «Zooplankton» and «Trophology» were used, which exist in the Excell format ...
openaire   +1 more source

Strike Behavior and Behavioral Responses to Retrieval by Northern Pike (Esox lucius) During Ice Angling

open access: yesFisheries Management and Ecology, Volume 33, Issue 1, Page 119-133, February 2026.
ABSTRACT Behavior of fish during catch and release has not been well studied despite its potential importance for fish conservation and welfare. We used underwater video footage to examine behaviors of ice‐angled northern pike (Esox lucius) during approach and retrieval.
Julee Stewart, Christopher M. Somers
wiley   +1 more source

External and internal grouping characteristics of juvenile walleye pollock in the Eastern Bering Sea

open access: yesAquatic Living Resources, 2019
Size and shape patterns of fish groups are collective outcomes of interactions among members. Consequently, group-level patterns are often affected when any member responds to changes in their internal state, external state, and environment. To determine
Stienessen Sarah C.   +3 more
doaj   +1 more source

Practical Application of a Bioenergetic Model to Inform Management of a Declining Fur Seal Population and Their Commercially Important Prey

open access: yesFrontiers in Marine Science, 2020
Food availability is a key concern for the conservation of marine top predators, particularly during a time when they face a rapidly changing environment and continued pressure from commercial fishing activities.
Elizabeth A. McHuron   +6 more
doaj   +1 more source

An Empty Donut Hole: the Great Collapse of a North American Fishery

open access: yesEcology and Society, 2011
Walleye pollock (Theragra chalcogramma) is North America's most abundant and lucrative natural fishery, and is the world's largest fishery for human food.
Kevin M. Bailey
doaj   +1 more source

Relationship between food consumption and growth of adult walleye pollock theragra chalcogramma in captivity [PDF]

open access: yes, 1984
Food consumption rate and growth rate of the adult walleye pollock were measured at different temperatures (2-7, 4-10 and 9-15°C), body sizes (33-35, 35-39 and 39-45cm) and foods (juvenile walleye pollock, squid and sandlance). 1.
桜井, 泰憲, 吉田, 英雄
core   +1 more source

A novel approach for rapidly determining the reproductive status of walleye pollock (Gadus chalcogrammus) using Raman spectroscopy

open access: yesFrontiers in Marine Science
Knowledge of the reproductive biology of fishes is essential for effective fisheries management. Information derived from an understanding of fish reproduction, such as size and age at maturity, is used in models to assess fish stocks and can affect ...
Sandra K. Neidetcher   +6 more
doaj   +1 more source

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