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New records of two alien opisthobranch molluscs from the north-eastern Atlantic: Polycera hedgpethi and Godiva quadricolor

Published online by Cambridge University Press:  17 May 2010

Juan Lucas Cervera ,
Naoufal Tamsouri ,
Abdellatif Moukrim  and
Guido Villani
Juan Lucas Cervera*
Affiliation:
Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Polígono del Rio San Pedro s/n, Apartado 40, 11510 Puerto Real (Cádiz), Spain
Naoufal Tamsouri
Affiliation:
Département de Biologie, Faculté des Sciences, Université Ibn Zohr, BP 8106, 80000 Agadir, Morocco
Abdellatif Moukrim
Affiliation:
Département de Biologie, Faculté des Sciences, Université Ibn Zohr, BP 8106, 80000 Agadir, Morocco
Guido Villani
Affiliation:
Istituto di Chimica Biomolecolare (CNR), Via Campi Flegrei 34, 80078 Pozzuoli (Naples), Italy
*
Correspondence should be addressed to: J.L. Cervera, Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Polígono del Rio San Pedro s/n, Apartado 40, 11510 Puerto Real (Cádiz), Spain email: lucas.cervera@uca.es
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Abstract

Polycera hedgpethi and Godiva quadricolor are two species of nudibranchs widely spread along the Indo-Pacific by shipping. The first of these two species was originally described from Californian coasts, while the second was described from temperate South African coasts. Records of both species outside the Indo-Pacific are scarce, but have already been recorded in the Mediterranean (Gulf of Naples and Adriatic, Italy; French coasts). Moreover, G. quadricolor in the Mediterranean has been misidentified and its significance misinterpreted. In this paper, we provide new records of a significant number of specimens of both species from the region of Agadir (Morocco, Atlantic), as well as that of an additional specimen of G. quadricolor from the Bay of Algeciras (Strait of Gibraltar). This last species is recorded for the first time for the Moroccan and Spanish fauna and P. hedgpethi is also new for the Moroccan fauna. The shipping activities carried out in the areas where the specimens reported in this paper have been collected, as well as their habitual eutrophic conditions, lead us to the expectation of the settlement in the near future, if not yet, of well-established populations of both species.

Keywords

Polycera hedgpethiGodiva quadricolorOpisthobranchiaNudibranchianorth-eastern AtlanticMediterraneanalien species
Type
Research Article
Information
Marine Biodiversity Records , Volume 3 , June 2010 , e51
Copyright
Copyright © Marine Biological Association of the United Kingdom 2010

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