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| De Casamajor, Marie-noelle; Mahias, Jeremy; Castets, Virginie; Caill-milly, Nathalie; Bru, Noelle; Lissardy, Muriel. |
| The sea urchin Paracentrotus lividus is an important exploited resource on the Mediterranean coast and has been the subject of much research. In the Bay of Biscay, the situation is different, as some studies have been conducted on the Spanish Basque coast but few on the French part of that coast. However, the Basque coast offers favourable conditions for the development of this species, and its exploitation could be a source of potential diversification for fishermen, especially in the context of difficulties with some other resources. At the request of the managers of this coastal resource, a study was undertaken on sea urchins to improve knowledge of this stock, particularly about its biological characteristics. In this work, assessment consisted of... |
| Tipo: Text |
Palavras-chave: Sea urchin; Bay of Biscay; Spawning; Tidal level; Rocky coast. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00361/47216/47172.pdf |
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| Calil,Patrícia; Rocha,Rosana M. da; Freire,Carolina A.; Roper,James J.. |
| Populations of Asterina stellifera Möbius, 1859 are declining in southern Brazil and today the species is on the Brazilian list of endangered species. Here we experimentally investigate the ecological role played by A. stellifera as a predator on the rocky substrate community by increasing densities of this species. Starfish taken from other, nearby, locations were added to three replicate plots and their density was maintained every 15 days. None of the total of 32 species that were identified in the encrusting community appeared to be influenced by the experiment. Two species, the barnacle Chthamalus bisinuatus Pilsbry, 1916 and the algae Gracilaria verrucosa (Hudson), showed small apparent responses to predation. We found that A. stellifera only exerts... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Experiment; Predation; Rocky coast; Starfish. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200010 |
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