| UDC 597.541:591.134 (265.53) |
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Biological Structure and Growth of the Pacific Herring Clupea pallasii Valenciennes in Cuvier et Valenciennes, 1847 (Clupeidae) of the Tauisk Bay (Northern Part of the Sea of Okhotsk) |
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| © 2018 E. V. Kashchenko1, R. R. Yusupov2 |
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1Magadan Research Institute of Fisheries and Oceanography, Magadan
2Institute of Biological Problems of the North FEB RAS, Magadan |
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| E-mail: ;
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| The paper presents the results of long-term (2002–2012 and 2016) studies of the Pacific herring age composition in the Tauysk Bay, in the northern part of the Sea of Okhotsk. It was found that in 2016 the spawning herring herd was formed by 3–12 full years old individuals measuring 15,3–32,6 cm and weighing 26–293 g. In the long-term aspect, individuals of both sexes survive to the age of 13 years. On the basis of direct observation and back calculation, the parameters of the Bertalanffy linear growth equation have been determined for the Pacific herring in the Tauysk Bay. The results showed that, by the rate of body length growth with age, the herring in the Tauysk Bay belongs to the group of Pacific herrings with an average growth rate. A comparative analysis for linear growth of the Pacific herring in the Tauysk Bay with that in other habitats, made using the multidimensional scaling method, permitted to establish that this herring grouping is characterized by the secluded locality equidistant from the geographically close Gizhiga-Kamchatka and Okhotsk populations of herring. The revealed features of the Pacific herring growth in the Tauysk Bay, combined with the available published data, permit to estimate this geographical grouping at the level of locality as an independent unit of resource and management. |
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| Keywords: Pacific herring, age structure, growth rate. |
| Full text [In Russian] |
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