Growth of the Euphausiids Thysanoessa inermis , Thysanoessa raschii , and Meganyctiphanes norvegica in a Subarctic Fjord, North Norway

Growth was studied in terms of the mean carapace length, wet and dry weight, protein, and lipid. Monthly length–weight regressions are presented for a 12-mo period. The growth of Thysanoessa spp. is closely related to phytoplankton production, while Meganyctiphanes norvegica (a carnivore) increases...

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Bibliographic Details
Published in:Canadian Journal of Fisheries and Aquatic Sciences
Main Author: Falk-Petersen, Stig
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1985
Subjects:
Aquatic Science
Ecology, Evolution, Behavior and Systematics
Norway
Midwinter
Meganyctiphanes norvegica
North Norway
Subarctic
Thysanoessa raschii
Thysanoessa inermis
Online Access:http://dx.doi.org/10.1139/f85-002
http://www.nrcresearchpress.com/doi/pdf/10.1139/f85-002
Description
Summary:Growth was studied in terms of the mean carapace length, wet and dry weight, protein, and lipid. Monthly length–weight regressions are presented for a 12-mo period. The growth of Thysanoessa spp. is closely related to phytoplankton production, while Meganyctiphanes norvegica (a carnivore) increases its weight continuously until it reaches its final size. In I-group Thysanoessa the individual maintains its body weight until midwinter, and this is followed by a continuous decrease in the body constituents until the onset of the spring phytoplankton bloom. The growth patterns are correlated with the environmental factors.

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