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Horizon / Pleins textes
Other literature type . 2012
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Journal of Plankton Research
Article . 2012 . Peer-reviewed
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Modeling the dispersal of Cape hake ichthyoplankton

Authors: Garavelli, L.; Gruss, A.; Grote, B.; Chang, N.; Smith, M.; Verley, Philippe; Stenevik, E.; +2 Authors

Modeling the dispersal of Cape hake ichthyoplankton

Abstract

The two Cape hake species of the southern Benguela ecosystem, the shallow-waterand deep-water hakes Merluccius capensis and M. paradoxus, are economically themost important marine resources in South Africa. Recruitment is a key process inthe dynamics of marine organisms, yet very little is known about the early lifehistory of Cape hakes, especially the location of spawning grounds and transportof eggs and larvae. For each species, ichthyoplankton dispersal off South Africa issimulated by coupling oceanographic simulations to an individual-based model inorder to track virtual individuals. Results indicate that the most favorable spawningareas for transport to nursery areas are located off the south-western coast and theeastern Agulhas Bank, and highlight partly different drift routes followed by thetwo ichthyoplankton species off Cape Columbine. Transport from spawning tonursery areas is the highest in austral winter for a spawning depth rangingbetween 0 and 100 m. These modeling results are in broad agreement with avail-able knowledge on the ecology of Cape hakes. The present work on Cape hakescomplements previous modeling studies on anchovy and sardine in the same area.Taken together, these studies underline the correspondence between cross-shore(for hakes) or alongshore (for anchovy and sardine) transport mechanisms and thespawning strategies used by these key species of the southern Benguela ecosystem.KEYWORDS: Merluccius spp.; Southern Benguela; larval dispersal; modeling

Country
France
Keywords

POISSON MARIN, MODELE, [SDV] Life Sciences [q-bio], LARVE, DISTRIBUTION SPATIALE, ABONDANCE

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
17
Top 10%
Average
Top 10%
Green
bronze