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首页> 外文期刊>Oceanology >Studies of the Structure of the Solovetsky Reproductive Gathering of Beluga Whales (Delphinapterus leucas) in the White Sea Using the Photo Identification Method
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Studies of the Structure of the Solovetsky Reproductive Gathering of Beluga Whales (Delphinapterus leucas) in the White Sea Using the Photo Identification Method

机译：用照片识别方法研究白海中白海豚（Solovetsky）生殖集会的结构

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摘要

The structure of the reproductive gathering of beluga whales (RG) was studied near Cape Beluzhii in the Solovetsky Islands in the White Sea by the photo identification of individuals in 2007-2008; in addition, the peculiarities of the seasonal and interseasonal dynamics of the RG incomings were analyzed. The gathering is formed by predominantly females and calves of different ages, which visit the RG area as stable "family" groups. About 15% of the observed females come to Beluzhii Cape every year and stay there during the whole summer season; thus, forming the regular part of the RG. The other animals come there for a certain time period, which is probably preconditioned by their physiological readiness for coupling and procreation for some of the females. When comparing our data with the catalogue of the visually registered beluga whales' markers (1996-2008), we found that most of the identified animals of the Solovetsky RG appear here during one summer season or even with an off period of several years despite the significantly regular findings of most of them for this area. We conclude this may be linked with the natural changes of the individual markers due both to the shedding and the sexual cycle in the mature animals. Our data allow concluding that the total population of the Solovetsky PG is higher than was reported before using the visual supervision methods.
机译：通过对2007-2008年个体进行照片识别，研究了白鲸索洛维茨基群岛贝鲁吉伊角附近的白鲸繁殖群的结构;此外，还分析了RG来料的季节和季节间动态的特殊性。这次聚会主要由不同年龄的雌性和犊牛组成，它们作为稳定的“家庭”群体来访RG地区。每年约有15％的观察到的雌性来到贝卢吉伊海角，并在整个夏季都呆在那里。因此，形成了RG的常规部分。其他动物到达那里一定时间，这可能是由于它们的生理状态为某些雌性的繁殖和繁殖做好了准备。将我们的数据与视觉上注册的白鲸标志物目录（1996-2008年）进行比较时，我们发现，大多数索洛维茨基RG识别出的动物出现在一个夏季，甚至在几年的停产期，尽管大部分人对该领域的定期检查结果非常明显。我们得出结论，这可能与由于成熟动物的脱落和性周期所致的各个标记的自然变化有关。我们的数据可以得出结论，索洛维茨基PG的总人口高于使用视觉监督方法之前的报告。

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