| Registro completo |
| Provedor de dados: |
ArchiMer
|
| País: |
France
|
| Título: |
Modeling larval dispersal for the gilthead seabream in the northwestern Mediterranean sea
|
| Autores: |
Lett, Christophe
Barrier, Nicolas
Ourmières, Yann
Petit, Cécile
Labonne, Maylis
Bourjea, Jerome
Darnaude, Audrey M.
|
| Data: |
2019-12
|
| Ano: |
2019
|
| Palavras-chave: |
Sparus aurata
Gulf of Lions
Fish
Larvae
Models-hydrodynamic
Biophysical model
Connectivity
Otolith
|
| Resumo: |
To investigate dispersal and connectivity between spawning and lagoon nursery habitats of the gilthead seabream, Sparus aurata, in the Gulf of Lions (northwestern Mediterranean Sea), we modeled the potential transport of the species’ larvae between its supposed main spawning site in the region (the Planier Island) and two of its main local nursery areas (the coastal lagoons of Thau and Salses-Leucate). Passive larval drift simulations using a dispersal biophysical model showed a large variability in the possible trajectories from spawning to nursery areas and in the predicted ages for larvae arrival on the two nursery sites. The most common ages at arrival obtained in the simulations (20–60 days) are broadly consistent with previous modeling studies but contrast with the actual ages of the S. aurata post-larvae collected in 2016 and 2017 at time of the lagoon entrances (60–90 days, from otolith readings). The period between 25 and 70 days being critical for gilthead seabream larvae to acquire sufficient swimming, osmoregulatory, and olfactory abilities to enter coastal lagoons, we argue that ontogenic development plays a crucial role in the transport and local retention of S. aurata larvae in the studied region, explaining the discrepancy between simulation results and observed data.
|
| Tipo: |
Text
|
| Idioma: |
Inglês
|
| Identificador: |
https://archimer.ifremer.fr/doc/00513/62470/66903.pdf
DOI:10.1016/j.marenvres.2019.104781
https://archimer.ifremer.fr/doc/00513/62470/
|
| Editor: |
Elsevier BV
|
| Formato: |
application/pdf
|
| Fonte: |
Marine Environmental Research (0141-1136) (Elsevier BV), 2019-12 , Vol. 152 , P. 104781 (15p.)
|
| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
|
|
