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首页> 外文期刊>Russian journal of marine biology >The Dynamics of the Community of True Seals (Phocidae) in Piltun Bay, Sakhalin Island, During the Ice-Free Seasons of 1999 and 2014-2016
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The Dynamics of the Community of True Seals (Phocidae) in Piltun Bay, Sakhalin Island, During the Ice-Free Seasons of 1999 and 2014-2016

机译：1999年和2014-2016年无冰季节萨哈林岛皮尔屯湾真海豹（Phocidae）群落的动态

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摘要

The on-shore haul-out of phocid seals located in the mouth of Piltun Bay (northeastern Sakhalin Island) has been studied and the number of seals on it during the ice-free season was estimated. Currently, it is the largest mixed-species on-shore haul-out on the northeastern Sakhalin coast. In the summer and autumn, three species of ice-bound seals feed in the adjacent waters: the bearded seal, ringed seal, and spotted seal. In 1999 and 2014-2017, the total observation time amounted to 630 days, during which 3361 counts of seals were made. The seasonal dynamics of the number of seals on shore are characterized by three consecutive periods with peak values (June-July, August-September, and October), each coinciding in time with the runs of anadromous fish through the bay mouth. In 1999, the number of seals was statistically significantly different from those recorded in 2014-2017; in 2014, it differed from the value in the season of 2016. In 1999, the median of the total number was significantly lower than in any of the seasons from 2014 to 2017.
机译：研究了位于皮尔屯湾（萨哈林岛东北部）河口的海豹的陆上运出情况，并估计了无冰季节海豹的数量。目前，它是萨哈林岛东北部沿海地区最大的混合物种陆上作业。在夏季和秋季，在附近水域中会喂食三种结冰海豹：大胡子海豹，环状海豹和斑点海豹。在1999年和2014-2017年，总共观测时间为630天，在此期间，进行了3​​361次海豹的计数。岸上海豹数量的季节性动态特征是三个连续的高峰期（6月至7月，8月至9月和10月），每个时期都与通过海湾口的无鳍鱼游动相吻合。在1999年，海豹的数量在统计上与2014-2017年有所不同。 2014年，它与2016年季节的价值有所不同。1999年，总数的中位数显着低于2014年至2017年任何一个季节。

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