First records, rediscovery and compilation of deep-sea echinoderms in the middle and lower continental slope of the Mediterranean Sea

Ariadna Mecho; David S.M. Billett; Eva Ramírez-Llodra; Jacopo Aguzzi; Paul A. Tyler; Joan B. Company

doi:10.3989/scimar.03983.30C

Autores/as

Ariadna Mecho Institut de Ciències del Mar, CSIC
David S.M. Billett National Oceanography Centre, University of Southampton
Eva Ramírez-Llodra Research Centre for Coast and Ocean, Norwegian Institute for Water Research (NIVA)
Jacopo Aguzzi Institut de Ciències del Mar, CSIC
Paul A. Tyler Ocean and Earth Science, University of Southampton, National Oceanography Centre
Joan B. Company Institut de Ciències del Mar, CSIC

DOI:

https://doi.org/10.3989/scimar.03983.30C

Palabras clave:

equinodermos de profundidad, mar Mediterráneo, Gracilechinus elegans, cañones submarinos, taxonomía, rango batimétrico

Resumen

Este estudio presenta una recopilación de toda la información disponible sobre los equinodermos de profundidad en el talud continental medio e inferior del mar Mediterráneo, con el fin de proporcionar una fuente de información unificada sobre la taxonomía de este grupo. Se han actualizado los registros anteriores mediante nuevos datos provenientes de 223 pescas de arrastre de 11 campañas oceanográficas realizadas en el noroeste Mediterráneo entre 800 y 2845 m de profundidad. Se ha actualizado el nombre de las especies, sus rangos batimétricos y sus distribuciones geográficas. Los nuevos datos presentan, por primera vez, la presencia del equinoideo Atlántico Gracilechinus elegans (Düben and Koren, 1844) en el mar Mediterráneo. También se cita la presencia en el noroeste Mediterráneo de dos especies de holoturias endémicas del Mediterráneo, Hedingia mediterranea (Bartolini Baldelli, 1914), muestreada una única vez en 1914 en el mar Tirreno, y Penilpidia ludwigi (von Marenzeller, 1893), muestreada tres veces, dos en el mar Egeo y una en el mar Balear. Además se expanden los límites de distribución batimétrica para cuatro especies: el asteroideo Ceramaster grenadensis (Perrier, 1881) hasta 2845 m; el equinoideo Brissopsis lyrifera (Forbes, 1841) hasta los 2250 m; y las holoturias Hedingia mediterranea y Holothuria (Panningothuria) forskali Delle Chiaje, 1823, hasta los 1500 m y 850 m respectivamente.

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