2018年和2020年汉卡湖拖网调查结果

E. Barabanshchikov, M. E. Shapovalov
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引用次数: 0

摘要

从2022年开始,汉卡湖已经开放了拖网捕鱼的可能性。2018年和2020年,会计工作是使用梁拖网进行的。研究表明,拖网捕捞生物量最高的是远东淡水虾(Palaemon modestus)、面鱼、尖腹鱼、bagrid鲶鱼和座头鲸。根据拖网调查,虾类和小鱼类的存量为3,5 - 4,6千吨。考虑到工作中对这些生物资源的低估,资源基数可在1.4万吨、0 - 1.5万吨、0万吨水平。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Results of trawl surveys in Khanka lake in 2018 and 2020
Since 2022, the possibility of trawl fishing on Khanka Lake has been opened. In 2018 and 2020, accounting work was carried out using a beam trawl. Studies have shown that the highest biomass in trawl catches was far eastern freshwater shrimp (Palaemon modestus), noodle fish, sharpbelly, bagrid catfish and humpback. According to the trawl survey, the stocks of shrimp and small fish species amounted to 3,5–4,6 thousand tons. Taking into account the underestimation of these biological resources during the performance of work, the resource base can be at the level of 14,0–15,0 thousand tons.
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