Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.1/10756
Título: Are submarine groundwater discharges affecting the structure and physiological status of rocky intertidal communities?
Autor: Piló, D.
Barbosa, Barbosa, Ana B.
Teodósio, Maria A.
Encarnação, J.
Leitão, F.
Range, P.
Krug, Lilian A.
Cruz, J.
Chícharo, Luís
Palavras-chave: Coastal waters
Benthic ecology
Condition index
Mytilus galloprovincialis
Gibbulla umbilicalis
Patella depressa
RNA/DNA ratio
Satellite remote sensing
Upwelling
Submarine groundwater discharges
Phytoplankton
Data: 2018
Resumo: This study evaluated the impacts of submarine groundwater discharges (SGD) on a rocky intertidal community of South Portugal, during April-November 2011. Chlorophyll-a concentration was higher at the SGD site in respect to the Reference site. Epibenthic community structure differed between sites, with an increase in Chthamalus spp. and a decrease in macroalgae coverage at the SGD site. The abundance and body size of Mytilus galloprovincialis were consistently higher at the SGD site. During mid-spring, under potentially higher SGD and less favorable conditions for coastal phytoplankton, the ecophysiological condition of M. galloprovincialis and G. umbilicalis was also higher at the SGD site. These beneficial effects on filter-feeders and herbivores probably resulted from local increases in prey availability, supported by SGD-driven nutrient inputs. Conversely, P. depressa was not favoured by SGD, probably due to a lower dependency on algae as food. The analysis of epibenthic community structure and ecophysiological condition represents a promising approach to disentangle the ecological impacts of SGD on intertidal ecosystems.
Peer review: yes
URI: http://hdl.handle.net/10400.1/10756
DOI: https://doi.org/10.1016/j.marenvres.2018.02.013
ISSN: 0141-1136
Aparece nas colecções:FCT2-Artigos (em revistas ou actas indexadas)
CIM2-Artigos (em revistas ou actas indexadas)
CCM2-Artigos (em revistas ou actas indexadas)

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