Title
Larval supply of Peruvian scallop to the marine reserve of Lobos de Tierra Island: A modeling approach
Date Issued
2019
Access level
restricted access
Resource Type
journal article
Author(s)
Brochier T.
Pecquerie L.
Lett C.
Publisher(s)
Elsevier B.V.
Abstract
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. © 2018 Elsevier B.V.
Start page
142
End page
155
Volume
144
Number
3
Language
English
Subjects
Scopus EID
2-s2.0-85058195086
Source
Journal of Sea Research
ISSN of the container
1385-1101
Sponsor(s)
We appreciate valuable discussions about scallop fishery, aquaculture and ecology with Maria Nelly Sanjinez and Juan Arguelles from IMARPE and with Martín Salazar from the Coastal Laboratory of Paita - IMARPE. We also thank Dimitri Gutierrez, from the General Research Direction of Oceanography and Climate Change and from the Master Program in Marine Science of Universidad Peruana Cayetano Heredia (UPCH). We acknowledge the support of the Science and Technology National Council (CONCYTEC – PERU) and the cooperative agreement between IMARPE and the Institut de Recherche pour le Développement (IRD – France) through the support of the JEAI “EMACEP” (Quantitative Marine Ecology of the Peruvian Upwelling Ecosystem) and the International Joint Laboratory LMI DISCOH (“Dynamics of the Humboldt Current System”). Finally, we thank the permanent feedback from the staff of the Laboratory of Oceanographical, Ecosystem and Climate Change Modeling of IMARPE.
Sources of information:
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