期刊
JOURNAL OF FISH BIOLOGY
卷 70, 期 2, 页码 374-390出版社
BLACKWELL PUBLISHING
DOI: 10.1111/j.1095-8649.2007.01308.x
关键词
depth-distribution; maturity; stomach contents
The size and depth distribution, stomach contents and reproductive status of Somniosus (Somniosus) microcephalus, Somniosus (Somniosus) pacificus and Somniosus (Somniosus) antarcticus were examined from specimens collected from the North and South Atlantic, North and South Pacific, and the Southern Ocean. Specimens ranged in size from 42 to 480 cm total length, L-T, and were taken from depths of 35-1280 m. Stomach contents included coelenterates, gastropods, cephalopods, echinoderms, crustaceans, elasmobranchs, teleosts, penguins, marine mammals and human waste. Female S. (S.) microcephalus mature at c. 450 cm and S. (S.) antarcticus at c. 435 cm L-T; a female S. (S.) pacificus of 430 cm was mature. Male S. (S.) microcephalus mature at c. 300 cm, but male S. (S.) antarcticus may not mature until c. 400 cm L-T. The size at birth in these three species of Somniosus is c. 40 cm L-T.
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