The spatio-temporal distribution of juvenile hake (

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Éditeur(s) EDP Sciences
Identifiant documentaire 10-dkey/10.1051/alr/2011120
Identifiant OAI oai:edpsciences.org:dkey/10.1051/alr/2011120
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Auteur(s): Marcelo A. San Martín,Luis A. Cubillos,Juan Carlos Saavedra
Mots clés Acoustic survey Fish distribution Midwater trawl Presence-absence Hake GAM
Date de publication 18/07/2011
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Source https://doi.org/10.1051/alr/2011120
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Description
The Chilean hake (Merluccius gayi gayi) is the predominant groundfish species inhabiting the southern Humboldt, mainly from Coquimbo (29° S) to Puerto Montt (42° S). At present there is only limited knowledge on the spatial distribution of juveniles of this species, particularly concerning its dependence on key physical characteristics. On the basis of annual surveys carried out during austral winters from 1997 to 2006, changes in the presence of juveniles were studied using Generalized Additive Model techniques. Temporal factors and spatial effects were more important than single physical variables in explaining the presence of juvenile hake (
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