Artículo
Attachment features of mytilids in ecosystems with mobile substrate: Brachidontes rodriguezii in San Antonio Bay (Patagonia, Argentina)
Fecha de publicación:
07/11/2016
Editorial:
Cambridge University Press
Revista:
Journal of the Marine Biological Association of the United Kingdom
ISSN:
0025-3154
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The force required to dislodge mussels from the substrate is known as attachment strength. This feature has been mostly studied in mytilids inhabiting the intertidal of consolidated rocky substrates, whereas it has been less studied in sedimentary substrates. The aim of this study was to evaluate the attachment strength and the number of byssal threads of Brachidontes rodriguezii in two sites with mobile substrates in San Antonio Bay, Argentina [Punta Verde (PV) and Punta Delgado (PD)]. PV has relatively higher current velocities and coarser grain size than PD. Along coastal line transects at two different levels of the mid-intertidal of each site, the attachment strength was measured. The number of byssal threads in collected mytilids and the weight of the sediment adhered to them were recorded in the lab. The attachment strength, the number of byssal threads and the sediment adhered to the byssus differed significantly between levels and sites. Mytilids from the mid-level of both sites where the density was relatively lower, had a significantly greater number of byssal threads and higher weight of sediment adhered. This study reveals that a high amount of coarse sediment adhered to the byssus affects the attachment strength of B. rodriguezii in ecosystems relative to unstable substrates. We underline the importance of mobile substrates in understanding attachment features (attachment strength and byssal threads) of mytilids in this unstable ecosystem.
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Colecciones
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Salas, María Cecilia; Defeo Gorospe, Omar; Narvarte, Maite Andrea; Attachment features of mytilids in ecosystems with mobile substrate: Brachidontes rodriguezii in San Antonio Bay (Patagonia, Argentina); Cambridge University Press; Journal of the Marine Biological Association of the United Kingdom; 96; 7; 7-11-2016; 1449-1456
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