A contribution to the biology of the White-beaked Dolphin, Lagenorhynchus albirostris, in waters off Newfoundland | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

6961312

Reference Type

Journal Article

Title

A contribution to the biology of the White-beaked Dolphin, Lagenorhynchus albirostris, in waters off Newfoundland

Author(s)

Hai, DJ; Lien, J; Nelson, D; Curren, K; ,

Year

1996

Is Peer Reviewed?

Yes

Journal

Canadian Field-Naturalist
ISSN: 0008-3550

Publisher

OTTAWA FIELD-NATURALISTS CLUB

Location

OTTAWA

Page Numbers

278-287

Web of Science Id

WOS:A1996UY54300004

Abstract

Twenty-one ice entrapments, nine strandings and three incidental captures in fishing gear of White-beaked Dolphins (Lagenorhynchus albirostris) 1979-1990 in Newfoundland waters are summarized. The results of autopsies from two ice-entrapped groups include body measurements, age estimates and stomach contents. Body-length criteria for physical maturity were determined from the degree of fusion of the bones in the flippers. On average, male White-beaked Dolphins become physically mature at a length of 281 cm and an age of 13 years; females reach physical maturity at an average body length of 261 cm and an age of 16 years, but there was considerable variation in size at sexual maturity.