1993年夏季白令海阿留申海盆区鱼卵、仔稚幼鱼种类组成及数量分布

THE TAXONOMIC COMPONENTS AND ABUNDANCE DISTRIBUTION OF FISH EGGS AND LARVAE IN THE ALEUTIAN BASIN OF THE BERING SEA IN SUMMER 1993

１９９３年夏季白令海阿留申海盆区鱼卵、仔稚幼鱼种类１０种。主要种类为深海鳚、鮶和狭鳕。鱼卵、仔稚幼鱼主要分布于鲍威尔斯海盆及其邻近水域和波哥斯洛夫岛水域，表层水温高于７．０℃。当表层水温高于９．０℃时，鱼卵、仔稚幼鱼的数量和种类显著增多。鱼卵、仔稚幼鱼的主要分布区鲍威尔斯海盆及其邻近水域和波哥斯洛夫岛水域，表层盐度分别为３２．８０－３３．００和３２．５０～３２．９５。

A total of 10 species of fish eggs and larvae were identified during the survey in the Aleutian Basin of the Bering Sea in summer 1993. The dominant species were Bathymaster sp., Sebastes sp. and Theragra chalcogramma. Fish eggs and Larvae were mainly distributed in Bowers Basin and its adjacent waters, and Bogoslof Island Area where the surface water temperature was over 7 .0℃. The abundance and species of fish eggs and larvae increased distinctly when the surface water temperature was above 9.0℃ .The surface water salinity of Bowers Basin and its adjacent waters was 32.80- 33 .00 whereas that of Bogoslof Island Area was 32. 50 - 32.95.