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Russian Journal of Marine Biology

, Volume 30, Issue 6, pp 421–425 | Cite as

The size composition of the pelagic eggs of walleye pollack Theragra chalcogramma in spawning areas of the northern Sea of Okhotsk

  • E. E. Ovsyannikov
Ichthyology

Abstract

The data on the size composition of the pollack developing eggs of walleye pollack collected in the northern Sea of Okhotsk in 2001 during mass spawning are given. The eggs caught in western Kamchatka and in Shelikhov Bay had the greatest diameter; they were somewhat less in the northern Okhotsk Sea area; and the smallest eggs were found in eastern Sakhalin. The clinal variability of the size composition of walleye pollack eggs was observed in the northern Sea of Okhotsk, and in the western and eastern parts it had a local pattern. Parameters such as spawning female size composition, temperature, and salinity, as well their influence on the size composition of eggs, were considered.

Key words

northern Sea of Okhotsk walleye pollack eggs sizes variability 

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Copyright information

© MAIK “Nauka/Interperiodica” 2004

Authors and Affiliations

  • E. E. Ovsyannikov
    • 1
  1. 1.Pacific Fisheries Research CenterVladivostokRussia

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