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The biology of Mustelus schmitti in southern Patagonia, Argentina
Author(s) -
Chiaramonte G. E.,
Pettovello A. D.
Publication year - 2000
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2000.tb02202.x
Subject(s) - biology , mating , zoology , ecology
The relationship of body weight and total length (L T ) of Mustelus schmitti in southern Patagonia was different between sexes. Changes in maturity stages in males appear at larger sizes in Ría Deseado specimens than in the Mar del Plata area. Mature females ranged from 795 to 913 mm while all male specimens >759 mm L T were mature. The data suggest that mating occurs before parturition, with simultaneous ovulation. The diet of adult M. schmitti was mainly carcinophage and the diet of young‐of‐the‐year and adults differed. The young‐of‐the‐year use the Ría Deseado as a pupping area.