Supplementary Information on Minke Whale ( Balaenoptera acutorostrata ) from Newfoundland Fishery

Minke whales (Balaenoptera acutorostrata) segregate by age and sex in the inshore waters of Newfoundland. The fishery in Trinity Bay exploited primarily juvenile males and females and pregnant females. Sexual maturity in females is at 24 ft (7.3 m) long and 7.3 earplug growth layers. Over 85% of mat...

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Bibliographic Details
Published in:Journal of the Fisheries Research Board of Canada
Main Authors: Mitchell, Edward, Kozicki, V. Michael
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1975
Subjects:
Online Access:http://dx.doi.org/10.1139/f75-118
http://www.nrcresearchpress.com/doi/pdf/10.1139/f75-118
Description
Summary:Minke whales (Balaenoptera acutorostrata) segregate by age and sex in the inshore waters of Newfoundland. The fishery in Trinity Bay exploited primarily juvenile males and females and pregnant females. Sexual maturity in females is at 24 ft (7.3 m) long and 7.3 earplug growth layers. Over 85% of mature females sampled were pregnant, three were lactating concurrently. A maximum of 14 growth layers was found in earplugs sampled. The ovulation rate was calculated at 0.6 corpora per growth layer. A von Bertalanffy growth curve was fitted to the data.