MASS ESTIMATES USING BODY MORPHOLOGY IN STELLER SEA LIONS
作者:
Michael A. Castellini,
Donald G. Calkins,
期刊:
Marine Mammal Science
(WILEY Available online 1993)
卷期:
Volume 9,
issue 1
页码: 48-54
ISSN:0824-0469
年代: 1993
DOI:10.1111/j.1748-7692.1993.tb00425.x
出版商: Blackwell Publishing Ltd
关键词: Steller sea lions;Eumetopias jubatus;morphometrics;marine mammals;otariids;Alaska
数据来源: WILEY
摘要:
Abstract:Analytical procedures developed from studies on phocids for relating body morphometrics (length and girth) to mass were applied to 390 Steller sea lions from the Gulf of Alaska and the Bering Sea. The equations relating body volume to mass were significant and had very high correlation coefficients for animals from about 60 to over 900 kg with a standard error of ±0.6% in fitted mass. There was a significant difference in these relationships for female sea lions studied in the 1970s and those examined in the 1980s. The latter sea lions were smaller and/or leaner than those collected in the 1970s
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