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

Author

Listed:
  • Héctor J Severeyn
  • Mario Nava

    (Laboratorio de Sistemática de Invertebrados Acuáticos, Venezuela)

  • Yajaira García de Severeyn

    (Departamento de Biología, Universidad del Zulia, Venezuela)

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.

Suggested Citation

  • Héctor J Severeyn & Mario Nava & Yajaira García de Severeyn, 2017. "Marine Biodiversity Gastropods Surveys as a Model for Early Detection of Exotic-Invaders Species," Oceanography & Fisheries Open Access Journal, Juniper Publishers Inc., vol. 3(5), pages 154-161, July.
    • Handle: RePEc:adp:jofoaj:v:3:y:2017:i:5:p:154-161
    DOI: 10.19080/OFOAJ.2017.03.555625
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