Results 51 to 60 of about 1,531 (216)
Walleye pollock maturity at length.
Mean proportion mature at length for walleye pollock in the Gulf of Alaska during 2003–2013. Estimates represent the base, unweighted and weighted spatial models. Shaded areas are 95% bootstrap confidence intervals.
Benjamin C. Williams (3219786) +2 more
core +1 more source
Distribution of Walleye Pollock Theragra chalcogramma off Southwestern Hokkaido in the Japan Sea in Spring [PDF]
In order to elucidate the distribution pattern of walleye pollock Theragra chalcogramma off southwestern Hokkaido in the Japan Sea, trawling and acoustic surveys, and hydrographic observations were conducted in early April from 1989 to 1993.
高橋, 豊美 +5 more
core +1 more source
Mean daily ration of walleye pollock (various size) in the Okhotsk Sea is estimated as 2.3 % of fish body weight in spring, 5.4 % in summer, 3.4 % in autumn, and 2.2 % in winter.
Konstantin M. Gorbatenko +1 more
doaj +1 more source
The collapse of walleye pollock catch in the Korean fishing region during the late 1980s remains unresolved despite enormous efforts to recover its stock.
Yong-Yub Kim +6 more
doaj +1 more source
ABSTRACT This study investigated the occurrence and whistle characteristics of small odontocetes in Wakasa Bay and Aso Bay, located in the coastal waters of the Sea of Japan, where ecological data are limited. Passive acoustic monitoring using A‐tag and SoundTrap was conducted from 2022 to 2024, with detections on 8.8% and 12.4% of monitoring days at ...
Satoko S. Kimura +2 more
wiley +1 more source
Why does the pollock (Theragra chalcogramma) abundance change
Some common ideas about environmental factors that determine the patterns of migration (including timing) and stock dynamics of walleye pollock are critically analyzed with particular attention to the Bering Sea. There is shown that the conception of the
Vyacheslav P. Shuntov
doaj +1 more source
Walleye pollock of the Okhotsk Sea: history of fishery and current status
The purpose of the workis to review the history of the development of walleye pollock stocks in the of Okhotsk sea, to analyze the fishery and the state of its stocks.Methods:literature data, materials of long-term surveys by VNIRO (1997–2002) on the walleye pollock spawning grounds of Western Kamchatka, as well as the R/V «Professor Kaganovsky» in the
N. P. Antonov +2 more
openaire +1 more source
Connections Between Surface and Subsurface Temperature Anomalies
Abstract Temperature anomalies, such as marine heatwaves and cold spells, are often studied as sea‐surface phenomena. Substantial temperature anomalies are also present in the subsurface, but subsurface temperature data are sparser. Here we use 1° × 1° × 7 day resolution ocean temperature maps from 1993 to 2023 to explore the dominant relation of ...
Sarah Packman +2 more
wiley +1 more source
ABSTRACT Shore‐based observers are increasingly being used in place of at‐sea observers to monitor and sample commercial fisheries catch. However, few evaluations assess whether these programs meet their stated goals or how to optimize them, and industry data are rarely tested for accuracy despite serving as the foundation for catch accounting. Using a
Christian Gredzens +2 more
wiley +1 more source
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 ...
Maznikova, Olga A. +5 more
core +1 more source

