Aspects of the life history of Meganyctiphanes norvegica (M. Sars), Crustacea (Euphausiacea), in Passamaquoddy Bay

Monthly collections of Meganyctiphanes norvegica for a 19-monih period in Passamaquoddy Bay showed that these euphausiids were present in the bay in varying numbers from February to November but virtually disappeared in December and January. Sexual maturity is attained in 1 year with gonadal develop...

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Bibliographic Details
Published in:Canadian Journal of Zoology
Main Authors: Hollingshead, K. W., Corey, S.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1974
Subjects:
Animal Science and Zoology
Ecology, Evolution, Behavior and Systematics
Meganyctiphanes norvegica
Online Access:http://dx.doi.org/10.1139/z74-061
http://www.nrcresearchpress.com/doi/pdf/10.1139/z74-061
Description
Summary:Monthly collections of Meganyctiphanes norvegica for a 19-monih period in Passamaquoddy Bay showed that these euphausiids were present in the bay in varying numbers from February to November but virtually disappeared in December and January. Sexual maturity is attained in 1 year with gonadal development taking 3 months, and spawning occurring in July and August. The resulting generation will breed and spawn for the first time the next July as age group I. Age group I grows from April until August; from September until March, very little growth occurs. After a second breeding and spawning, the animals die, having a life span of 2 years.

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