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The peculiarities of water thermal regime and spawning of Euphausiids in the Northern Japan Sea
Pogodin, A.G.; Shatilina, T.A. (1998). The peculiarities of water thermal regime and spawning of Euphausiids in the Northern Japan Sea, in: Biology of marine and freshwater resources of the southern part of Russian Far-East. Izvestiya of the Pacific Research Fisheries Centre, 123: pp. 168-184
In: (1998). Biology of marine and freshwater resources of the southern part of Russian Far-East. Izvestiya of the Pacific Research Fisheries Centre, 123. TINRO Centre: Vladivostok. ISBN 5-89131-013-9. 449 pp., more
In: Izvestiya of the Pacific Research Fisheries Centre (TINRO-Centre) = Сборник Научнынч Трудов ТИНРО. Pacific Research Fisheries Centre (TINRO Centre): Vladivostok. ISSN 1606-9919, more
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  • Pogodin, A.G.
  • Shatilina, T.A.
Abstract
    Types of water thermal regime were determined from anomalies of the monthly averaged sea surface temperature in the Tatar Strait (northern part of Japan Sea). Spawning of two species of euphausiids was considered on the data of multi-years regular collections of plankton obtained from 1973 to 1977. The biotope of the northern Japan Sea corresponds to subarctic water structure. The conditions of this biotope was favorable for the spawning of the arctoboreal species as Thysanoessa raschii in the cold years and for the widely boreal species as Euphausia pacifica in the warm years. Atmospheric peculiarities (pressure anomalies and prevailing winds) were found which may favour the formation of warm and cold types of water temperature regime and accompany these types during summer. High activity of "Okhotsk Sea cyclon" forms the conditions of cold water regime in the northern Japan Sea. The obtained results and this approach can be useful for predicting the quality of food resources of commercially valuable species.
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