Geographical variation in metazoan parasites of the deep-sea fish Bathypterois mediterraneus Bauchot, 1962 (Osteichthyes: Ipnopidae) from the Western Mediterranean |
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| Institution: | 1. Marine Zoology Unit, Cavanilles Institute of Biodiversity and Evolutionary Biology, Science Park, University of Valencia, C/Catedrático José Beltrán 2, 46980 Paterna, Valencia, Spain;2. Departament de Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain;1. Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, Japan;2. College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan;3. Atmosphere and Ocean Research Institute, The University of Tokyo, 5?1?5 Kashiwanoha, Kashiwa, Chiba 277?8564, Japan;4. Department of Fisheries, Faculty of Agriculture, Kindai University, Nara 631-8505, Japan;5. Muséum National d’Histoire Naturelle, BOREA (Biologie des Organismes et Ecosystèmes Aquatiques), Station marine de Dinard, 38 rue du Port Blanc, 35800 Dinard, France;6. Institute of Fisheries Science, College of Life Science, National Taiwan University, Taipei 10617, Taiwan;7. SL Research University: EPHE-UPVD-CNRS, UAR CNRS 3278, Centre de Recherche Insulaire et Observatoire de l’Environnement (CRIOBE), Université de Perpignan Via Domitia, 58 avenue P. Alduy, 66860 Perpignan, France;8. UMR 7266 LIENSs, Littoral Environnement et Sociétés, 2, rue Olympe de Gouges, 17000 La Rochelle, France;9. National Institute of Water and Atmospheric Research, PO Box 8602, Christchurch 8440, New Zealand;10. Department of Environment and Biodiversity, University of Salzburg, Hellbrunnerstrasse 34, 5020 Salzburg, Austria;11. Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan;1. Laboratorio de Biología Marina, Departamento de Zoología, Facultad de Biología, Universidad de Sevilla. Reina Mercedes 6, 41012 Sevilla, Spain;2. A.N. Severtzov Institute of Ecology and Evolution of the Russian Academy of Science, Leninsky prosp., 33, Moscow 117071, Russia;3. Centre d’Estudis Avancats de Blanes (CEAB – CSIC), Carrer d’accés a la Cala Sant Francesc 14, 17300 Blanes (Girona), Catalunya, Spain;1. Magister Ecology Aquatic Systems, Universidad de Antofagasta, Angamos 601, Antofagasta, Chile;2. Millenniun Institute of Oceanography, Universidad de Concepción, Concepción, Chile;3. Instituto Ciencias Naturales Alexander von Humboldt, Universidad de Antofagasta, Angamos 601, Antofagasta, Chile |
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| Abstract: | This study examines the parasite fauna of Bathypterois mediterraneus, the most common fish below 1500 m in Western Mediterranean waters. Samples were obtained during July 2010 from the continental slope of two different areas (off Catalonia and Balearic Islands) in three different bathymetric strata at depths between 1000 and 2200 m. The parasite fauna of B. mediterraneus included a narrow range of species: Steringophorus cf. dorsolineatum, Scolex pleuronectis, Hysterothylacium aduncum, Anisakis sp. larva 3 type II and Sarcotretes sp. Steringophorus cf. dorsolineatum and H. aduncum were the most predominant parasites. H. aduncum showed significant differences in abundance between depths of 2000–2200 m with 1000–1400 m and 1400–2000 m, irrespective of locality, whereas S. cf. dorsolineatum showed significant differences between the two localities at all depths except for 2000–2200 m. We suggest the possible usefulness of these two parasites as geographical indicators for discriminating discrete stocks of B. mediterraneus in Western Mediterranean waters. |
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| Keywords: | Parasites Deep-sea fish NW Mediterranean Geographical indicators |
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