Size increment of jumbo flying squid Dosidicus gigas mature females in Peruvian waters, 1989–2004
2008; Elsevier BV; Volume: 79; Issue: 2-4 Linguagem: Inglês
10.1016/j.pocean.2008.10.003
ISSN1873-4472
AutoresJuan Argüelles, Ricardo Tafur, Anatolio Taipe, Piero Villegas, Friedeman Keyl, Noel Domínguez, Martín R. Salazar,
Tópico(s)Coral and Marine Ecosystems Studies
ResumoChanges in population structure of the jumbo flying squid Dosidicus gigas in Peruvian waters were studied based on size-at-maturity from 1989 to 2004. From 1989 to 1999, mature squid belonging to the medium-sized group prevailed, but from 2001 on, mature squids were larger. This change is not related to the changes in sea surface temperature and we hypothesized that it was caused by the population increase of mesopelagic fishes as prey.
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