Artículo
Matching spatial scales of variation in mussel recruitment and adult densities across southwestern Atlantic rocky shores
Arribas, Lorena Pilar
; Bagur Creta, Maria
; Gutierrez, Jorge Luis Ceferino
; Palomo, Maria Gabriela
Fecha de publicación:
01/2015
Editorial:
Elsevier Science
Revista:
Journal of Sea Research
ISSN:
1385-1101
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The recruitment of aquatic invertebrate larvae often differs in space and time thus contributing to variation in the abundance of adults. In the present study, we examined spatial scales of variation in mussel (Brachidontes spp.) recruitment and adult abundance across rocky intertidal areas in the Southwestern Atlantic. Recruitment and adult densities were compared between two regions separated ca. 700 km from each other, two locations (10–20 km from each other) within each region, and two sites (100–500 m from each other) within each location. Variance components analysis indicates that most variation in mussel recruitment and adult densities occurs at the scale of locations, irrespective of if mussel recruitment is quantified on mussel bed samples or artificial substrates (plastic mesh collectors). Increased mussel recruitment and adult densities at this scale are associated with higher time-averaged chlorophyll a concentration and wave exposure, which can potentially affect the supply of larvae to rocky shores by increasing their survival and delivery rates. There was close correspondence between the spatial patterns of variation in cumulative recruitment on natural substrates during the study period and the density of adults at its end. This suggests that differences in mussel abundance along Southwestern Atlantic rocky shores could be primarily determined by larval recruitment.
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Articulos(MACNBR)
Articulos de MUSEO ARG.DE CS.NAT "BERNARDINO RIVADAVIA"
Articulos de MUSEO ARG.DE CS.NAT "BERNARDINO RIVADAVIA"
Citación
Arribas, Lorena Pilar; Bagur Creta, Maria; Gutierrez, Jorge Luis Ceferino; Palomo, Maria Gabriela; Matching spatial scales of variation in mussel recruitment and adult densities across southwestern Atlantic rocky shores; Elsevier Science; Journal of Sea Research; 95; 1-2015; 16-21
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