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The gametogenic cycle and spawning in Mytilus edulis in two fjords in north-western Iceland

Published online by Cambridge University Press:  19 March 2013

Gudrun G. Thorarinsdóttir ,
Hafsteinn G. Gudfinnsson ,
Svanhildur Egilsdóttir  and
Jón Örn Pálsson
Gudrun G. Thorarinsdóttir*
Affiliation:
Marine Research Institute, Skúlagata 4, 101 Reykjavik, Iceland
Hafsteinn G. Gudfinnsson
Affiliation:
Marine Research Institute, Skúlagata 4, 101 Reykjavik, Iceland
Svanhildur Egilsdóttir
Affiliation:
Marine Research Institute, Skúlagata 4, 101 Reykjavik, Iceland
Jón Örn Pálsson
Affiliation:
Skor–Knowledge Centre, Tungata 39. 460 Tálknafjördur, Iceland
*
Correspondence should be addressed to: G.G. Thorarinsdóttir, Marine Research Institute, Skúlagata 4, 101 Reykjavik, Iceland email: [email protected]
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Abstract

The annual gametogenic cycle in the blue mussel, Mytilus edulis L. was investigated from May 2010 to May 2011 in two locations in north-western Iceland. Food availability (chlorophyll-a) was high in early spring at both sites, with a summer maximum in July in Steingrimsfjördur but an autumn maximum in September in Patreksfjördur. Gonad development started in November at both sites, with ripe gametes still visible in the follicles, and continued throughout the year, except for a very short time prior to spawning in Steingrimsfjördur. Gametes developed mostly between November and May. Spawning was protracted, lasting from July to early winter at both sites. The main spawning events occurred from August (11.7°C) to October (9.4°C) in Patreksfjördur, but from July (9.8°C) to October (8.6°C) in Steingrimsfjördur

Keywords

Mytilus edulisblue musselsgametogenesisgametesspawningspawning seasonchlorophyll-atemperature
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 93 , Issue 6 , September 2013 , pp. 1609 - 1615
Copyright
Copyright © Marine Biological Association of the United Kingdom 2013 

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