Larval dispersal in three coral reef decapod species: Influence of larval duration on the metapopulation structure
Por:
Sanvicente-Anorve, Laura, Zavala-Hidalgo, Jorge, Allende-Arandia, Eugenia, Hermoso-Salazar, Margarita
Publicada:
20 mar 2018
Resumen:
Most coral-associated decapod species have non-migratory adult populations and depend on their planktonic larvae for dispersal. This study examined the metapopulation structure of three decapod species with different pelagic larval duration (PLD) from twelve coral reef complexes of the Gulf of Mexico. The dispersion of larvae was analyzed through the use of a realistic numerical simulation of the Gulf of Mexico with the Hybrid Coordinate Ocean Model. To study the transport and dispersion of particles in near-surface waters, a particle-tracking subroutine was run using as input the currents from the model. The simulation consisted of the launch of 100 passive particles (virtual larvae) every 24 hours from each reef throughout five years, and tracked for as long as 210 days. Results indicated that species with a short PLD, Mithraculus sculptus (PLD 8–13 days), had a weak connection among the reefs, but higher self-recruitment, especially on the narrow western shelf. The species with a longer PLD, Dromia erythropus (28–30 days), had a stronger connection among neighboring reefs (< 300 km). Finally, the species with an even longer PLD, Stenopus hispidus (123–210 days), had a wider potential distribution than the other species. Circulation on synoptic, seasonal and interannual scales had differential effects on the larval dispersal of each species. The metapopulation structure of M. sculptus and D. erythropus seemed to combine features of the non-equilibrium and the patchy models, whereas that of S. hispidus presumably fit to a patchy model. These findings support previous observations that indicate that species with longer PLD tend to occupy larger areas than species with short PLD, although recruitment of juveniles to the adult populations will also depend on other factors, such as the availability of suitable habitats and the ability to colonize them. © 2018 Sanvicente-Añorve et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Filiaciones:
Sanvicente-Anorve, Laura:
Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mexico City, Mexico
Univ Nacl Autonoma Mexico, Inst Ciencias Mary & Limnol, Mexico City, DF, Mexico
Zavala-Hidalgo, Jorge:
Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Mexico City, Mexico
Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City, DF, Mexico
Allende-Arandia, Eugenia:
Cátedra CONACyT, Laboratorio de Ingeniería y Procesos Costeros, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Sisal, Yucatán, Mexico
Univ Nacl Autonoma Mexico, Inst Ingn, Lab Ingn & Proc Costeros, Catedra CONACyT, Sisal, Yucatan, Mexico
Hermoso-Salazar, Margarita:
Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, Mexico City, Mexico
Comis Nacl Conocimiento & Uso Biodiversidad, Mexico City, DF, Mexico
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