Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.12/1496
Título: Microhabitat segregation in three rocky intertidal fish species in Portugal: Does it reflect interspecific competition?
Autor: Faria, Cláudia Barreiros Macedo de
Almada, Vítor Carvalho
Palavras-chave: Blenniidae
Intertidal fishes
Microhabitat segregation
Ontogenetic niche shifts
Interspecific competition
Data: 2001
Editora: Blackwell Publishing
Citação: Journal of Fish Biology, 58, 145-159
Resumo: Recruits of Lipophrys pholis, Coryphoblennius galerita and Gobius cobitis spend the low tide under water in pools, and in the case of G. cobitis also in channels. The pools used by the two blenniids show greater similarity than those used by G. cobitis. Larger juveniles and adults of C. galerita continue to use the same type of pools, which are temporarily abandoned by the males during the breeding season when they use emersed holes and crevices as nests. The much faster growing L. pholis and G. cobitis leave the pools in their first autumn, when they are c. 7 cm long. Whereas G. cobitis >7 cm move to channels and large upper pools, with a smooth substratum, sand and boulders, L. pholis begin to use emersed crevices where they spend low tide often in large groups. When L. pholis or C. galerita were added or removed selectively from pools, their numbers returned to pre-experimental levels after 2 weeks, suggesting that, although intraspecific competition may be strong, interspecific competition was unlikely to explain these results fully.
Peer review: yes
URI: http://hdl.handle.net/10400.12/1496
ISSN: 0022-1112
Aparece nas colecções:UIE-E - Artigos em revistas internacionais

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