Composición y abundancia de especies de octocorales en el mar de Mármara, donde el Mediterráneo confluye con el mar Negro

Autores/as

  • Eda N. Topçu Istanbul University Fisheries Faculty - Turkish Marine Research Foundation
  • Bayram Öztürk Istanbul University Fisheries Faculty - Turkish Marine Research Foundation

DOI:

https://doi.org/10.3989/scimar.04120.09A

Palabras clave:

octocoral, coral blando, gorgonia, pluma de mar, coraligenos, mar de Mármara

Resumen


En este trabajo se ha analizado la composición y abundancia de especies de octocorales de las comunidades bentónicas del mar de Mármara. Este mar conecta el Mediterráneo y el mar Negro, dos mares semicerrados con condiciones oceanográficas particulares. En la capa salina del mar de Mármara (20-40 m) se encontraron un total de catorce especies de octocorales. La abundancia media de colonias de las diferentes especies se obtuvo mediante la realización de transectos. En total se censaron 1390 colonias resultando en una abundancia media de corales de 5.21±5.11 colonias m–2 (media±DE). A pesar de que el mar de Mármara está sometido a severas perturbaciones antropogénicas, se observaron densas agregaciones de corales/ gorgonias durante este estudio. En las comunidades de coralígeno—una de las comunidades más emblemáticas del mar Mediterráneo—que se desarrollan en el mar de Mármara están dominadas por dos especies de gorgonias Eunicella cavolini o Paramuricea macrospina. Además las agregaciones de gorgonias del mar de Mármara diferían de las del Mediterráneo por su alta abundancia de P. macrospina y Spinimuricea klavereni, dos especies raramente encontradas en el mar Mediterráneo en el rango de profundidades estudiado. Los factores que podrían explicar los resultados se discuten teniendo en cuenta las condiciones oceanográficas particulares del mar de Mármara y las principales amenazas para los corales/gorgonias en el mar de Mármara. Finalmente, ofrecemos algunas recomendaciones de gestión para la conservación de los corales en esta área.

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Publicado

2015-03-30

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1.
Topçu EN, Öztürk B. Composición y abundancia de especies de octocorales en el mar de Mármara, donde el Mediterráneo confluye con el mar Negro. Sci. mar. [Internet]. 30 de marzo de 2015 [citado 22 de julio de 2024];79(1):125-3. Disponible en: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1564

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