The History of the Schoolmaster Squid Fishery Development in Russian Waters and Its Current State

Alexeyev, D. O.; Бизиков, В. А.; Botnev, D.A.; Lischenko, F. V.

doi:10.36038/2307-3497-2018-170-90-104

Cited by 2 publications

(3 citation statements)

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“…Головоногие значились среди наиболее важных объектов питания во многих ранних исследованиях [14,15,45,52,60] и иногдакак наиболее часто встречаемая добыча сивуча [42]. Единственным промысловым видом в водах России является командорский кальмар (Berryteuthis magister Berry, 1913) с ежегодной добычей около 80−100 тысяч тонн [2], который преобладает в числе и биомассе среди головоногих моллюсков и, вероятно, является наиболее частой добычей сивуча [2,59]. Командорский кальмар собирается в предсказуемые сезонные скопления над прибрежным континентальным шельфом, где он нерестится [1,59].…”

Section: головоногие моллюскиunclassified

“…Вероятно, скопления кальмара предоставляют сивучу доступный, предсказуемый и обильный источник пищи в местах концентрации. Отличительной особенностью этого кормового объекта является формирование плотных и достаточно устойчивых скоплений, приуроченных к районам с высокой динамикой вод [1,2,57,58].…”

Section: головоногие моллюскиunclassified

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Экология Питания Сивуча С Репродуктивного Лежбища На Мысе Козлова (Восточная Камчатка)

Усатов¹,

Бурканов²,

Токранов³

2022

Biosfera

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We studied the Steller's sea lion Eumetopias jubatus feeding ecology based on undigested food items found in feces at the Kozlova Cape rookery, Eastern coast of Kamchatka Peninsula, in summers (2004 through 2008). Atka mackerel Pleurogrammus monopterygius and walleye pollock Theragra chalcogramma were dominant in a sea lion diet hauled out at Kozlova Cape rookery in terms of frequency of occurrence. Less frequently occurred were Pacific sand lance Ammodytes hexapterus, Threespine stickleback Gasterosteus aculaeatus, Smelt Osmerus mordax, Sculpins Cottidae, Pacific sandfish Trichodon trichodon, Flatfishes Pleuronectidae, Salmon Oncorhynchus sp., Pacific cod Gadus macrocephalus, and Squid and Octopus Cephalopoda. The contribution of the other food items was not significant. Diet diversity median during sea lion single foraging trip was two prey items, range being one to nine Atka mackerel and Walleye pollock as the major prey objects. Most of sea lion food items were referred to species featuring a marked seasonal presence near the shore or on the shelf. Sea lions feed near the rookery close to the shore on seasonal food aggregations common to the area. Seasonal prey aggregations can be extremely important for breeding animals due to increasing the efficiency of food search and capture, which in turn can affect the reproductive success of animals and their survival. In this regard, the stability of the food resource near Kozlova Cape Rookery may influence sea lion population status there.

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Section: головоногие моллюскиunclassified

Экология Питания Сивуча С Репродуктивного Лежбища На Мысе Козлова (Восточная Камчатка)

Усатов¹,

Бурканов²,

Токранов³

2022

Biosfera

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“…Comparison of biomass estimates of the Commander squid in the North Kuril area using different calculation methods [by:Alexeyev, 2020] …”

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Fishery resources of commercial invertebrates of Russian Seas and it’s use during 2000–2020

Bizikov,

Alexeyev,

Abaev

et al. 2024

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The purpose of the work is to describe the changes of resources of commercial invertebrates in Russia and to analyze its use over the mentioned period.The research methods consisted in summarizing information on the state of the resources of commercial invertebrates in the seas of Russia and analyzing of the data of fishing statistics for 2000–2020.Results of the study are a description of the changes that have occurred with the main stocks of commercial invertebrates in the seas of Russia and the features of fishery, with an assessment of the current state of stocks.Discussion. The number of stocks for fishery prediction increased during the first two decades of the XXI century due to finding of new commercial fishery subjects. At the same time, a number of invertebrate stock units have lost their commercial significance over the past two decades of the XXI century. Сhanges in the structure of the resources and fishery of commercial invertebrates happened. The structure of invertebrates resources of the Far Eastern Fisheries basin proved to be the most conservative, while the importance of new fishing subjects significantly increased in the Northern and Azov-Black Sea fisheries basins.The novelty of the work lies in the analysis of the state invertebrates resources in the seas of Russia and their fishery in 2000–2020.Conclusion. In general, the fishery resources of invertebrates in the Russian Seas were fairly stable during 2000 to 2020, and ensured an increase in catch due to more full use.

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The History of the Schoolmaster Squid Fishery Development in Russian Waters and Its Current State

Cited by 2 publications

References 1 publication

Экология Питания Сивуча С Репродуктивного Лежбища На Мысе Козлова (Восточная Камчатка)

Экология Питания Сивуча С Репродуктивного Лежбища На Мысе Козлова (Восточная Камчатка)

Fishery resources of commercial invertebrates of Russian Seas and it’s use during 2000–2020

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