
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
POISSON MARIN, MODELE, [SDV] Life Sciences [q-bio], LARVE, DISTRIBUTION SPATIALE, ABONDANCE
POISSON MARIN, MODELE, [SDV] Life Sciences [q-bio], LARVE, DISTRIBUTION SPATIALE, ABONDANCE
| 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). | 17 | |
| 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. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
