Evidence for Expatriate Populations of the Lanternfish Myctophum punctatum in the Northwest Atlantic

Myctophum punctatum populations in the Northwest Atlantic are probably expatriate, being composed almost exclusively of very large individuals and lacking postlarvae. Females do not possess maturing or gravid ovaries. The apparent physiological stress on these fish is reflected by irregular and some...

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Bibliographic Details
Published in:Journal of the Fisheries Research Board of Canada
Main Authors: Zurbrigg, R. E., Scott, W. B.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1972
Subjects:
Online Access:http://dx.doi.org/10.1139/f72-267
http://www.nrcresearchpress.com/doi/pdf/10.1139/f72-267
Description
Summary:Myctophum punctatum populations in the Northwest Atlantic are probably expatriate, being composed almost exclusively of very large individuals and lacking postlarvae. Females do not possess maturing or gravid ovaries. The apparent physiological stress on these fish is reflected by irregular and sometimes regressive growth evidenced in their scales, otoliths and subopercles.