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2020-06-30

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cc-by-nc-nd (c) Parera, Alex et al., 2020
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/169455

Sea-slugs (Mollusca, Gastropoda, Heterobranchia): the other inhabitants of the city of Barcelona (Spain)

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Sea slugs in the broad sense (until recently called «opisthobranchs» and now within the Heterobranchia subclass of the Gastropoda), have aroused the interest of naturalists since they began to be studied by the end of the XVIII century. Their colorful and varied shapes make them very attractive to be studied and photographed. Numerous are the published works written to spread the knowledge of the biodiversity of these molluscs in all marine regions, however very few studies have been carried out to know these species that inhabit highly anthropized areas, such as the interior of commercial ports, marinas, artificial substrates or the coastal areas of large cities. Here are the results of a biodiversity study of marine heterobranchs conducted along the coast of the city of Barcelona (Spain). Numerous specimens of 73 species of sea slugs have been found, belonging to 5 orders: 4 Aplysiida, 5 Cephalaspidea, 3 Runcinida, 47 Nudibranchiaand 4 Pleurobranchida, and 1 superorder: 10 Sacoglossa, including two alien species, Polycerella emertoni and Bursatella leachii, of widecircumtropical distribution. Our work proves that new habitats, created with the construction of marinas, breakwaters or submerged rockbars, are being colonized by seaweeds and marine invertebrates that set onto these artificial structures. Surprisingly our study found a highbiodiversity of marine heterobranchs, even in waters with abundant organic matter and subjected to high anthropic pressure.

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Invertebrats marins, Barcelona (Catalunya : Província)

Matèries (anglès)

Marine invertebrates, Barcelona (Catalonia : Province)

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Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)

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PARERA, Alex, et al. Sea-slugs (Mollusca, Gastropoda, Heterobranchia): the other inhabitants of the city of Barcelona (Spain). Butlletí de la Institució Catalana d'Història Natural. 2020. Vol. 84, num. 75-100. ISSN 1133-6889. [consulted: 6 of August of 2026]. Available at: https://hdl.handle.net/2445/169455

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