Species composition, distribution, and density dynamics of echinoderm larvae were determined based on four samples taken at 28 stations in the summer-autumn season of 1997 in an area adjacent to the Tumen River Estuary and to the Far East State Marine Reserve. Larvae of nine species were recorded. The larvae ofOphiura sarsi (up to 9600 ind./m3) and ofEchinocardium cordatum (2058 ind./m3) were dominant in terms of density. The echinoderm larvae mostly appeared in the upper water layer (0–15 m). The study area can be divided into two sites based on the density and species composition of echinoderm larvae: the first to the south of Furugel'ma Island, where the density and species number were low, and the second to the north of Furugel'ma Island, where these parameters had higher values.
Russian Journal of Marine Biology – Springer Journals
Published: Nov 18, 2007
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