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Biological features of Low Amur grayling Thymallus tugarinae (Salmoniformes: Thymallidae): 2. Growth |
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| Authors: | P. B. Mikheev V. I. Ostrovskii N. N. Semenchenko G. V. Novomodnyi A. P. Shmigirilov A. L. Antonov E. I. Barabanshchikov |
| Affiliation: | 1. Khabarovsk Branch, Pacific Research Fishery Center-KhbTINRO, Khabarovsk, Russia 2. Institute of Water and Ecological Problems, Far Eastern Branch, Russian Academy of Sciences, Khabarovsk, Russia 3. Pacific Research Fishery Center-TINRO-Tsentr, Vladivostok, Russia |
| Abstract: | We present the results of analysis of the group growth of the Low Amur grayling Thymallus tugarinae from 18 rivers of the Low Amur basin, tributaries of the Bureya and Ussuri rivers. We made use of the published data on the fishes of Sakhalin Island. The dwarf and fast-growing forms are not revealed among the investigated groups of this species. The parameters of growth of the Low Amur grayling in the investigated rivers are different, which is determined by the different conditions of feeding migration connected with the geographical location of the streams, their hydrological features, density of populations, etc. The anthropogenic factor influence is essential. Growth rate of T. tugarinae is lower compared with the other Amur species of graylings. |
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