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首页> 外文期刊>Russian journal of marine biology >A Method for Differentiating between the Migrating Population Complexes of Sea of Okhotsk Pink Salmon in Pacific Waters off the Kuril Islands Based on the Gonadosomatic Index
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A Method for Differentiating between the Migrating Population Complexes of Sea of Okhotsk Pink Salmon in Pacific Waters off the Kuril Islands Based on the Gonadosomatic Index

机译：基于碱性指数，在kuril岛中的太平洋水中迁移群岛迁移群体群体迁移群体复合物的差异化

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摘要

An original method is proposed for rapidly differentiating between regional pink salmon runs with different timings of spawning and states of gonads (gonadosomatic indices, GSI). The results of differentiation obtained by the original and traditional methods are compared. The concept of spatial niches for various temporal groups of Sea of Okhotsk pink salmon in Pacific waters off the Kuril Islands is critically revised on the basis of the proposed new method. The existing concept is based on the traditional use of certain numerical markers (GSI) for samples at the sites of trawl hauls. The width of the spatial overlap zone in the distribution of temporal groups is shown. The method was tested using data of trawl surveys conducted aboard the R/V Professor Kaganovsky in May-July 2018, during the anadromous migration of pink salmon. It shows high agreement with the estimates of the proportions of the contribution that the regional pink salmon groups make to the runs and catches according to the official statistics on fishing and the escapement of spawners to rivers. The assumption on the tendency of the late-maturing pink salmon forms to migrate through the southern part of Pacific waters off the Kuril Islands is confirmed. The specific (along transects) and cumulative portion of early-maturing pink has been shown to increase with distance off the Kuril straits into Pacific waters.
机译：提出了一种迅速区分区域粉红色鲑鱼与产卵的不同时间和性腺（GonadoSomatic Indices，GSI）之间的速度迅速区分。通过原始和传统方法获得的分化结果进行了比较。在kuril群岛的太平洋水域中okhotsk粉红鲑鱼的各个颞族海洋群体的概念在拟议的新方法的基础上受到严重修订。现有概念基于传统使用某些数值标记物（GSI）在拖爪Hauls位点上的样品。示出了空间重叠区的宽度在时间组分布中。在2018年5月至2018年5月至7月，在粉红色鲑鱼的阿基罗迁移期间，使用拖网调查数据进行了拖网调查数据进行了测试。它与区域粉红色鲑鱼组对渔业统计和河流逃逸的官方统计数据作出的贡献的比例达成了高度协议。确认了在KURIL岛屿上通过南部迁移到太平洋水域南部的晚期粉红色鲑鱼形式的趋势。已经显示出早熟粉红色的特异性（沿横断面）和累积部分，随着距离Kuril海峡的距离而进入太平洋水域。

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