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.

• Main Authors: Aloncle, Henri, Delaporte, Francis
• Format: Article in Journal/Newspaper
• Language: French
• Published: ISTPM 1974
• Subjects: ANE; Thunnus alalunga; Population structure; Tagging; Migrations; Ecological distribution; North East Atlantic
• Online Access: https://archimer.ifremer.fr/doc/1974/publication-2043.pdf; https://archimer.ifremer.fr/doc/00000/2043/

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.