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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Infestation rates of the pedunculated barnacle Octolasmis lowei (Cirripedia: Poecilasmatidae) on the spider crab Libinia spinosa (Decapoda: Majoidea)

Texto completo
Autor(es):
Cordeiro, C. A. M. M. [1] ; Costa, T. M. [2]
Número total de Autores: 2
Afiliação do(s) autor(es):
[1] Univ Fed Paraiba, CCEN, DSE, UFPB, BR-58051900 Joao Pessoa, Paraiba - Brazil
[2] UNESP, Sao Vicente - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Journal of the Marine Biological Association of the United Kingdom; v. 90, n. 2, p. 315-322, MAR 2010.
Citações Web of Science: 7
Resumo

The prevalence and infestation intensities of Octolasmis lowei in the bronchial chambers of Libinia spinosa were evaluated according to the host's sex, size, and moult condition. Epibionts were classified as cyprid larvae, non-ovigerous or ovigerous according to their developmental stage. A median intensity of infestation of 21 epibionts/host was found (range = 1-644; Q(3) = 81). Epibiont prevalence values (88%) were higher on ovigerous female hosts than on males (55%) or on non-ovigerous females (31%). Intensity of infestation was positively correlated with host size in both sexes for non-ovigerous and ovigerous epibionts. No preference between host sex by cyprid larvae was observed, nor any correlation between cyprid abundance and host size. Cyprid larvae abundance was positively correlated with settled epibionts on both host sexes. The duration of the intermoult phase was the main factor linked to the establishment of sessile epibionts. These observations are important in relation to crabs that have a terminal moult, because these animals cannot eliminate their epibionts in future moults, thus increasing the importance of density-dependent mechanisms on epibiont establishment; in that way, prevalence of infestation alone can underestimate the real impact of infestation on the host's life cycle. (AU)

Processo FAPESP: 05/01617-5 - Estrutura populacional de octolasmis lowei Darwin, 1852 Cirripedia: poecilasmatidae) simbionte em Libinia Spinosa h. Milne Edwards, 1834 (Decapoda: Majoidea)
Beneficiário:Cesar Augusto Marcelino Mendes Cordeiro
Linha de fomento: Bolsas no Brasil - Iniciação Científica
Processo FAPESP: 01/00886-1 - Epibiose em caranguejos braquiuros (Crustacea, Decapoda) do infralitoral não consolidado do estado de São Paulo
Beneficiário:Tânia Marcia Costa
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 98/07090-3 - Biodiversidade marinha bêntica no Estado de São Paulo
Beneficiário:Antonia Cecília Zacagnini Amaral
Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Temático