The Life History of Thysanoessa raschii

Thysanoessa raschii is a regular inhabitant of the Firth of Clyde. Adults are found throughout this area, generally in waters not less than 40 fms. deep. Those of large size, 23–25 mm., are apparently consistently found from year to year in Loch Striven in large numbers from October to January withi...

Full description

Bibliographic Details
Published in:Journal of the Marine Biological Association of the United Kingdom
Main Author: Macdonald, Roderick
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1928
Subjects:
Online Access:http://dx.doi.org/10.1017/s0025315400055533
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315400055533
Description
Summary:Thysanoessa raschii is a regular inhabitant of the Firth of Clyde. Adults are found throughout this area, generally in waters not less than 40 fms. deep. Those of large size, 23–25 mm., are apparently consistently found from year to year in Loch Striven in large numbers from October to January within 10 fms. from the bottom in waters of 40 fms. depth. Throughout the rest of the year they occur in small numbers in the tow-nets, and are seldom found at all during the summer months. On one occasion, however, February, 1926, several hundreds were fished in addition to large numbers of Meganyctiphanes norvegica at 40–60 fms. in the Cumbrae Deep.