Metazoan parasites as biological indicators of population structure of Halobatrachus didactylus on the Portuguese coast

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

Marques, JF (Autor) Outra; Santos, MJ (Autor) FCUP; Costa, JL (Autor) Outra; Costa, MJ (Autor) Outra; Cabral, HN (Autor) Outra

Revista

Título: Journal of Applied Ichthyology

Vol. 21

Páginas: 220-224

ISSN: 0175-8659

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 10 Citações

Scopus - 11 Citações

Classificação Científica

FOS: Ciências agrárias > Agricultura, silvicultura e pescas

Outras Informações

ID Authenticus: P-000-322

DOI: 10.1111/j.1439-0426.2005.00655.x

Abstract (EN): A total of 366 Halobatrachus didactylus (Bloch & Schneider 1801) individuals were obtained between September and November 2000 from commercial fishing vessels at eight localities along the Portuguese coast and analysed for metazoan parasite infections. Three species of parasites were found: Hysterothylacium aduncum Rudolphi 1802; Progrillotia dasyatidis Beveridge et al. 2004, which constitutes a new host record for the Lusitanian toadfish; and Nerocila orbignyi Guerin-Meneville 1829. Prevalence and mean abundance were determined for the total fish population in each sample. Significant differences in the number of parasitized fish among the samples analysed indicate differences in the H. didactylus populations along the Portuguese coast. The cluster analysis performed to prevalence data pointed out two major clusters: one composed of mainly estuarine samples and one that grouped samples from coastal areas; this is in agreement with the results obtained by morphological and genetic analysis performed for the same samples.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5