Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/106231
Título: Lack of recovery symptoms of an endangered and harvested mollusc in the last 20 years
Autores/as: Riera, R. 
Herrera, R.
Pérez, O.
Garrido, M.J.
Álvarez, O.
Monterroso, O.
Núñez, J.
Clasificación UNESCO: 251005 Zoología marina
Palabras clave: Harvesting
Subtidal
Molluscs
Abalones
Canary Islands, et al.
Fecha de publicación: 2018
Publicación seriada: Journal of the Marine Biological Association of the United Kingdom 
Resumen: Molluscs are subjected to intense harvesting in many areas around the world. Conservation measures have been developed to preserve populations of an overexploited gastropod species, the abalone Haliotis tuberculata coccinea. This species was surveyed in subtidal localities throughout coastal Tenerife, Canary Islands over the last two decades (1994–2014). A clear indicator of non-recovery was observed in the decrease of mean size throughout the last two decades, even after the inclusion of this species in the Regional Catalogue of Endangered Species. The mean size of abalones decreased from 33.5 mm (1994) to 28–29 mm (2002 and 2014), corresponding to sub-adult individuals. The structure of size classes was typical of an overexploited species, with reduced occurrence of large individuals (>50 mm). Several factors might explain this pattern such as illegal harvesting, proliferation of featureless benthos and a decrease of suitable habitats for colonization and settlement. Complementary conservation actions are urgently needed to preserve this species in the area studied.
URI: http://hdl.handle.net/10553/106231
ISSN: 0025-3154
DOI: 10.1017/S0025315416001430
Fuente: Journal Of The Marine Biological Association Of The United Kingdom [ISSN 0025-3154], v. 98 (2), p. 351-355 (Marzo 2018)
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