Egg masses of the Patagonian squid Doryteuthis (Amerigo) gahi attached to giant kelp (Macrocystis pyrifera) in the sub-Antarctic ecoregion

Egg masses of the Patagonian squid Doryteuthis (Amerigo) gahi attached to giant kelp (Macrocystis pyrifera) in the Magellanic channels of the sub-Antarctic ecoregion in southern South America is documented for the first time. Of seven egg masses observed between 2008 and 2011, one was taken to the l...

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Bibliographic Details
Published in:Polar Research
Main Authors: Sebastián Rosenfeld, Jaime Ojeda, Mathias Hüne, Andrés Mansilla, Tamara Contador
Format: Article in Journal/Newspaper
Language:English
Published: Norwegian Polar Institute 2014
Subjects:
Doryteuthis
egg masses
giant kelp
Patagonian squid
sub-Antarctic ecoregion
geo
hist
Antarctic
Antarc*
Polar Research
Online Access:https://doi.org/10.3402/polar.v33.21636
https://doaj.org/article/805e2c9d0fc94ca7b0fa6c0c563e89aa
Description
Summary:Egg masses of the Patagonian squid Doryteuthis (Amerigo) gahi attached to giant kelp (Macrocystis pyrifera) in the Magellanic channels of the sub-Antarctic ecoregion in southern South America is documented for the first time. Of seven egg masses observed between 2008 and 2011, one was taken to the laboratory to be analysed and photographed. Comprising long transparent capsules containing eggs, the masses were strongly attached to the stipes of M. pyrifera. This macroalgae is a potentially important economic resource due to its multiple industrial uses; this study shows that it also serves an important ecological role as a spawning substrate for D. gahi.

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