Nereis. Interdisciplinary Ibero-American Journal of Methods, Modelling and Simulation.

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Pennella filosa (Linnaeus, 1758) (Copepoda, Siphonostomatoida, Pennellidae) from Coryphaena hippurus Linnaeus, 1758 (Pisces, Coryphaenidae) captured in western Mediterranean (Balearic Islands). Morphological and biological aspects

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Abstract

Abstract: Sixty one fishes of the species Coryphaena hippurus (Linneo, 1758) have been examined for the presence of the pennellid copepod Pennella filosa (Linneo, 1758) from western Mediterranean (Balearic Islands). Prevalence was 46%. Head, neck, genital complex and abdomen were measured as well as horns. The cefalotorax of the parasites were attached in different locations on fishes but mainly on fins and dorsolateral muscles. Mean intensity, mean abundance and range were determined and data has been analysed by means of Pearson Correlation Coefficient. Likewise ecological aspects of the parasitism and some data of biological cycle were examined.

Keywords: pennellid, parasitism, prevalence, abundance, ecology.

Resumen: Se han examinado sesenta y un especímenes de Coryphaena hippurus (Linneo, 1758) para hallar la presencia del copépodo del género Pennella Pennella filosa (Linneo, 1758) del Mediterráneo occidental (Islas Baleares). La prevalencia fue del 46%. Se realizaron mediciones de cabeza, cuello, complejo genital y abdomen, así como de los “cuernos”. El cefalotórax de los parásitos estaba adherido a diferentes partes del cuerpo de los peces, pero principalmente a las aletas y a los músculos dorsolaterales. Se determinaron la intensidad media, la abundancia media y el rango, y se analizaron los datos mediante el coeficiente de correlación de Pearson. Igualmente, se examinaron aspectos ecológicos del parasitismo y algunos datos del ciclo biológico.

Palabras clave: pennella, parasitismo, prevalencia, abundancia, ecología.

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