Please use this identifier to cite or link to this item: https://www.um.edu.mt/library/oar/handle/123456789/18343
Title: Is the endemic Maltese Top-shell Gibbula nivosa extinct?
Authors: Schembri, Patrick J.
Borg, Joseph A.
Deidun, Alan
Knittweis, Leyla
Mellado Lopez, T.
Keywords: Gastropoda -- Malta
Trochidae -- Malta
Endangered species -- Malta
Marine habitat conservation -- Malta
Issue Date: 2007
Publisher: La Commission Internationale pour l'Exploration Scientifique de la Mer Méditerranée
Citation: Schembri, P. J., Borg, J. A., Deidun, A., Knittweis, L., & Mellado Lopez, T. (2007). Is the endemic Maltese Top-shell Gibbula nivosa extinct? - Rapport du Congrès de la Commission Internationale pour l'Exploration Scientifique de la Mer Méditerranée 38. Monaco: La Commission Internationale pour l'Exploration Scientifique de la Mer Méditerranée. 592.
Abstract: The trochid gastropod Gibbula nivosa, endemic to the Maltese Islands, has recently only been found in two Maltese bays, where it occurred on seagrass leaves and under stones at depths of 1-4m. Intensive sampling of Cymodocea nodosa and Posidonia oceanica meadows, sediment and pebbles at depths of 2-12m, carried out in 2000 and 2002, resulted only in empty shells but no live animals, suggesting that the species is extinct from these localities where previously good populations were found. However, the occurrence of fresh shells from other Maltese sites suggests that small undiscovered populations may exist. G.nivosa is considered to be ’critically endangered’.
URI: https://www.um.edu.mt/library/oar//handle/123456789/18343
Appears in Collections:Scholarly Works - FacSciBio
Scholarly Works - FacSciGeo

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