Donnees nouvelles sur le germon Thunnus alalunga Bonnaterre 1788 dans le Nord-Est Atlantic. 2eme partie. Les populations de germons Thunnus alalunga dans le Nord-Est Atlantique.

In this, the 2nd part of a study of Thunnus alalunga in the north-east Atlantic, populations and migrations are considered. The term 'population' is defined. The utilization of H. fusca as a biological 'marker' is considered and tagging experiments are described. Modal classes ar...

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Bibliographic Details
Main Authors: Aloncle, Henri, Delaporte, Francis
Format: Article in Journal/Newspaper
Language:French
Published: ISTPM 1974
Subjects:
ANE
Online Access:https://archimer.ifremer.fr/doc/1974/publication-2043.pdf
https://archimer.ifremer.fr/doc/00000/2043/
Description
Summary:In this, the 2nd part of a study of Thunnus alalunga in the north-east Atlantic, populations and migrations are considered. The term 'population' is defined. The utilization of H. fusca as a biological 'marker' is considered and tagging experiments are described. Modal classes are examined: summary analysis, detailed analysis of fisheries. Internal temps and regulation are studied. The types of watering are defined and described and a statistical analysis as a function of the watering is made. An attempt at synthesis is made: Azorian, standard. Migratory determinism is examined.