Publications des scientifiques de l'IRD

Flores-Valiente J., Tam J., Brochier Timothée, Colas François, Pecquerie Laure, Aguirre-Velarde A., Mendo J., Lett Christophe. (2019). Larval supply of Peruvian scallop to the marine reserve of Lobos de Tierra Island : a modeling approach. Journal of Sea Research, 144, p. 142-155. ISSN 1385-1101.

Titre du document
Larval supply of Peruvian scallop to the marine reserve of Lobos de Tierra Island : a modeling approach
Année de publication
2019
Type de document
Article référencé dans le Web of Science WOS:000456758400016
Auteurs
Flores-Valiente J., Tam J., Brochier Timothée, Colas François, Pecquerie Laure, Aguirre-Velarde A., Mendo J., Lett Christophe
Source
Journal of Sea Research, 2019, 144, p. 142-155 ISSN 1385-1101
The Peruvian scallop (Argopecten purpuratus) is the second main contributor to the total catch of mollusks in Peru, after jumbo squid. There are two main scallop banks populations in northern Peru: Lobos de Tierra Island (LTI) and Sechura Bay (SB). Despite a continuous, intense relocation of seeds from LTI, the natural bank population still persists there. To understand this, we studied larval connectivity between LTI and SB using the first invertebrate larval transport biophysical model developed in the region. Larval local retention were 2.4% and 1.57% on average at LTI and SB respectively, while larval transport from SB to LTI was 0.02% on average and 0.07% in the opposite direction. Both larval retention and larval transport increased with spawning depth and were highest in austral summer. Two main larval transport paths from SB to LTI were identified, resulting from a combination of horizontal mesoscale circulation patterns and vertical flows. Potential management implications for these natural banks are discussed.
Plan de classement
Limnologie physique / Océanographie physique [032] ; Ecologie, systèmes aquatiques [036]
Description Géographique
PEROU ; PACIFIQUE ; LOBOS DE TIERRA ILE
Localisation
Fonds IRD [F B010074943]
Identifiant IRD
fdi:010074943
Contact