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Drinkwater, K.F., Mueter, F., Friendland, K.D., Taylor, M., Hunt Jr, G.L., Hare, J. and Melle, W. “Recent climate forcing and physical oceanographic changes in Northern Hemisphere regions: A review and comparison of four marine ecosystems”, Progress in Oceanology, 81.10-28. Apr. 2009.

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Article

Variations in Vertical Distribution of the Young of Two Commercial Bivalve Species Depending on Some Factors

1A.V. Zhirmunsky Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia


American Journal of Marine Science. 2015, Vol. 3 No. 1, 22-35
DOI: 10.12691/marine-3-1-3
Copyright © 2015 Science and Education Publishing

Cite this paper:
Delik D. Gabaev. Variations in Vertical Distribution of the Young of Two Commercial Bivalve Species Depending on Some Factors. American Journal of Marine Science. 2015; 3(1):22-35. doi: 10.12691/marine-3-1-3.

Correspondence to: Delik  D. Gabaev, A.V. Zhirmunsky Institute of Marine Biology, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia. Email: gabaevdd11@outlook.com

Abstract

The results of a long-term study of vertical distribution of the two main fouling species on scallop collectors of Japanese design—Japanese scallop, Mizuhopecten (= Patinopecten) yessoensis, and Pacific mussel, Mytilus trossulus—installed along the Primorsky Krai coast, Sea of Japan (East Sea), are presented in this article. The mussel, associated with Japanese scallop, is in fact its food competitor, which reduces its survival and growth rates. Settlement of scallop larvae begins earlier in shallow waters, i.e. in areas, where upper horizons are wormed up faster. A significant similarity in vertical distribution of juvenile scallop between stations is observed. The positive correlation between depth and vertical distribution of juvenile scallop is recorded most frequently in years with a high water temperature in June; for mussel, this relationship is always negative. Both climatic characteristics of year and position of the station exert influence on the depth of the maximum abundance of the young of the studied mollusks. Exposing scallop collectors at the optimum horizon, 9.5–15 m, promotes increase in the abundance of M. yessoensis and reduction in the abundance of M. trossulus.

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