Marine Biodiversity Gastropods Surveys as a Model for Early Detection of Exotic-Invaders Species

Héctor J Severeyn, Mario Nava and Yajaira García de Severeyn
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Mario Nava: Laboratorio de Sistemática de Invertebrados Acuáticos, Venezuela
Yajaira García de Severeyn: Departamento de Biología, Universidad del Zulia, Venezuela

Oceanography & Fisheries Open Access Journal, 2017, vol. 3, issue 5, 154-161

Abstract: In this paper we address the importance and transcendence of biodiversity surveys to detect early arrival of exotic species that could become ecological invaders. We used qualitative-intensive surveys of gastropods benthic fauna in high energy beaches as a model for the detection of exotic species. Between 2009-2010, four beaches belonging to the Venezuelan Gulf were sampled every three month through the standard transepts and quadrants methodology using a Ekman grab. We identified 105 gastropods species, 35 of which were new addition to the Venezuelan malacofauna. Ten of these species are new for the Atlantic Ocean, which means, they are introduced species. These species are: Bittium rugatum Carpenter, 1864; Cerithiopsis bakeri Bartsch, 1917; Diastoma fastigiatum Carpenter, 1864; Odostomia astricta Dall and Bartsch, 1907; Odostomia aepynota Dall and Bartsch 1909, Odostomia excolpa Bartsch 1912.

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Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:adp:jofoaj:v:3:y:2017:i:5:p:154-161

DOI: 10.19080/OFOAJ.2017.03.555625

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