Commercial Resources of Saffron Cod, Eleginus gracilis, in Russian Waters of the Far Eastern Seas

IF 0.5 4区生物学 Q4 MARINE & FRESHWATER BIOLOGY Russian Journal of Marine Biology Pub Date : 2024-01-26 DOI:10.1134/s1063074023070131

O. V. Novikova, M. V. Rakitina, A. V. Metlenkov, L. A. Chernoivanova, A. Yu. Nemchenko

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Abstract

The current status of the stocks, the dynamics of commercial fisheries, and the distribution of the saffron cod Eleginus gracilis in the fishery areas of the Far East are analyzed. In the Far Eastern basin, saffron cod makes the greatest contribution to the total catch of aquatic biological resources in the Karaginsky subzone (8.1%) and off western Kamchatka (3.6%). The total saffron cod catch from the Far Eastern seas in 2003–2022 ranged within 16 700–50 600 tons, with an average of 33 900 t. According to the data of bottom trawl surveys conducted in 2016–2023, the largest saffron cod aggregations are traditionally observed in the shelf waters off western Kamchatka, in the southwestern and northwestern Bering Sea, where the catch per unit effort reaches 4500 kg per trawling hour. Off western Kamchatka, the biomass of this species was estimated at 197 400 t; in the Karaginsky subzone, 100 400 t; in the West Bering Sea zone, 32 800 t; in the East Sakhalin and Petropavlovsk-Commander subzones, the values were similar, 17 100 and 17 200 t, respectively; and in the North Okhotsk Sea area, 8700 t. Almost all the exploited stocks in recent years have been above their average long-term annual level or fluctuated within its range. In general, the status of the saffron cod stocks in the fishery subzones at the present time can be considered satisfactory.

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远东海域俄罗斯水域红花鳕（Eleginus gracilis）的商业资源

摘要分析了远东渔区红花鳕（Eleginus gracilis）的种群现状、商业渔业动态和分布情况。在远东盆地，卡拉金斯基分区（8.1%）和堪察加半岛西部沿海（3.6%）的红花鳕占水生生物资源总产量的比例最大。2003-2022 年远东海域的红花鳕总产量在 16 700-50 600 吨之间，平均为 33 900 吨。根据 2016-2023 年进行的底拖网调查数据，传统上在堪察加半岛西部、白令海西南部和西北部的陆架水域观测到最大的藏红花鳕鱼群，单位努力量的渔获量达到每拖网小时 4500 千克。在堪察加半岛西部外海，该物种的生物量估计为 197 400 吨；在卡拉金斯基分区，为 100 400 吨；在西白令海区，为 32 800 吨；在东萨哈林和彼得罗巴甫洛夫斯克-指挥官分区，数值相似，分别为 17 100 吨和 17 200 吨；在北鄂霍次克海区，为 8700 吨。近年来，几乎所有已开发的种群都高于其长期年平均水平，或在其范围内波动。总体而言，目前各渔业分区的红花鳕种群状况可以说是令人满意的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Russian Journal of Marine Biology 生物-海洋与淡水生物学

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The Russian Journal of Marine Biology was founded in 1975 by Alexey V. Zhirmunsky, member of the Russian Academy of Sciences. The Russian Journal of Marine Biology covers a wide range of research and some applied aspects of marine biology as a synthetic science related to various fields of study on marine biota and environment. It presents fundamental research on biological processes at molecular, cellular, organismal, and populational levels in marine organisms. Consideration is given to marine objects as models in life sciences. The journal also publishes papers dedicated to events in Russian and international marine biological science and the history of biology.