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首页> 外文期刊>Russian journal of marine biology >Seabird Aggregation around Vessels during the Winter Trawl Fishery for Walleye Pollock in the Sea of Okhotsk
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Seabird Aggregation around Vessels during the Winter Trawl Fishery for Walleye Pollock in the Sea of Okhotsk

机译：鄂霍次克海的大眼鲷冬季捕捞捕捞期间船只周围的海鸟聚集

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摘要

The observations conducted during the Walleye Pollock expedition to the Sea of Okhotsk in January-April 2015 showed that various seabird species (at least 12) aggregate permanently around trawlers in the Sea of Okhotsk. The birds are attracted by fish-processing waste. The quantitative and species composition of aggregations is dynamic. The richest of these in terms of number of species and the most abundant (up to 23000 individuals around one vessel at a time) are formed in the Kamchatka-Kuril subzone, where numerous overwintering birds arrive from adjacent ocean waters. The Northern Fulmar accounts for a major part of the aggregation (68.9% of all birds); this bird dominates most of the fishery areas. The second most-abundant group of species is large white-headed gulls of the genus Larus (31.0%), mainly the Slaty-backed Gull. In general, the pollock trawl fishery is regarded as an influential factor that causes large overwintering grounds of seabirds to form in the Sea of Okhotsk. Fish-processing waste disposed overboard supports a huge bird community by providing a stable food supply during the harsh season.
机译：在2015年1月至4月对鄂霍次克海的Walleye Pollock探险中进行的观察表明，各种海洋鸟类（至少12种）永久聚集在鄂霍次克海的拖网渔船周围。鸟类被鱼类加工废物所吸引。聚集体的数量和种类组成是动态的。就物种数量而言，其中最丰富的物种是数量最多，最丰富的物种（一次在一艘船上最多可容纳23000人），形成于堪察加-库里尔（Kamchatka-Kuril）分区，那里有许多越冬鸟类从邻近的海水到达。北富尔马占总体的大部分（占所有鸟类的68.9％）；这只鸟在大多数渔业地区占主导地位。第二大类是鸥属的大型白头鸥（占31.0％），主要是板岩背鸥。通常，狭鳕拖网渔业被认为是导致鄂霍次克海形成大型海鸟越冬地的重要因素。安置在船外的鱼类加工废物通过在恶劣季节提供稳定的食物供应来支持庞大的鸟类社区。

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