BIOLOGIYA MORYA, 2017, Vol. 43, No. 4, pp. 271-279

Distribution of the Yesso scallop, Mizuhopecten yessoensis (Jay, 1857) (Bivalvia: Pectinidae), in the Southern part of the Far Eastern Marine Reserve

© 2017 V. N. Lysenko¹, V. V. Zharikov², A. M. Lebedev², D. A. Sokolenko³

¹Far Eastern Marine Reserve, National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041;
²Pacific Geographical Institute, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041;
³Pacific Research Fisheries Center (TINRO Center), Vladivostok 690091

E-mail: ;

The current status of the Yesso scallop, Mizuhopecten yessoensis, population has been studied in waters of the Southern part of the Far Eastern Marine Reserve. The maximum population density of this species, observed in Kalevala Bay in 2007 and 2015, was 0.50 and 0.56 ind./m², respectively. In the bays and off the semi-open shores, the mean population density was higher than in open waters. The number of Yesso scallop in the studied part of the reserve (1.3 million ind.) is equivalent to that in 2007 (1.2 million ind.); the difference between the population density values in 2007 and 2015 is statistically insignificant at the 5% level of significance. The total number of M. yessoensis in Peter the Great Bay is estimated at 4 million ind.; at least 1/4 of the population inhabits the Southern part of the reserve.

Key words: Far Eastern Marine Reserve, Mizuhopecten yessoensis, status of population.