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

First records, rediscovery and compilation of deep-sea echinoderms in the middle and lower continental slope of the Mediterranean Sea
First records, rediscovery and compilation of deep-sea echinoderms in the middle and lower continental slope of the Mediterranean Sea
This study provides a compilation of all available information on deep-sea echinoderms from the middle and lower slopes of the Mediterranean Sea, with the aim of providing a unified source of information on the taxonomy of this group. Previous records of species are updated with new data obtained from 223 trawl hauls conducted in 11 cruises within the northwestern Mediterranean Sea between 800 m and 2845 m depth. Valid names, bathymetric ranges and geographic distributions are given for all species. The new data report, for the first time, the presence of the Atlantic echinoid Gracilechinus elegans (Düben and Koren, 1844) in the Mediterranean Sea. We also report the presence of the endemic holothurians Hedingia mediterranea (Bartolini Baldelli, 1914), dredged only once previously in 1914 in the Tyrrhenian Sea, and Penilpidia ludwigi (von Marenzeller, 1893), known previously only from three samples, two in the Aegean Sea and one in the Balearic Sea. Additionally, the deeper limits of the bathymetric distribution of four species have been expanded: the asteroid Ceramaster grenadensis (Perrier, 1881) to 2845 m; the echinoid Brissopsis lyrifera (Forbes, 1841) to 2250 m; and the holothurians Hedingia mediterranea and Holothuria (Panningothuria) forskali Delle Chiaje, 1823, to 1500 m and 850 m, respectively.
deep-sea echinoderms, Mediterranean Sea, Gracilechinus elegans, submarine canyons, taxonomy, bathymetric range
0214-8358
281-302
Mecho, Ariadna
812b62cd-423f-4805-8474-2be9e62e40d3
Billett, David S.M.
aab439e2-c839-4cd2-815c-3d401e0468db
Ramírez-Llodra, Eva
41924507-acaa-41c4-8d35-09a79be3c495
Aguzzi, Jacopo
688c6e4a-0d74-4838-8a4c-4c6adc3a04a1
Tyler, Paul A.
d1965388-38cc-4c1d-9217-d59dba4dd7f8
Company, Joan B.
4b760697-afc7-4896-b066-06aabaf4d98d
Mecho, Ariadna
812b62cd-423f-4805-8474-2be9e62e40d3
Billett, David S.M.
aab439e2-c839-4cd2-815c-3d401e0468db
Ramírez-Llodra, Eva
41924507-acaa-41c4-8d35-09a79be3c495
Aguzzi, Jacopo
688c6e4a-0d74-4838-8a4c-4c6adc3a04a1
Tyler, Paul A.
d1965388-38cc-4c1d-9217-d59dba4dd7f8
Company, Joan B.
4b760697-afc7-4896-b066-06aabaf4d98d

Mecho, Ariadna, Billett, David S.M., Ramírez-Llodra, Eva, Aguzzi, Jacopo, Tyler, Paul A. and Company, Joan B. (2014) First records, rediscovery and compilation of deep-sea echinoderms in the middle and lower continental slope of the Mediterranean Sea. Scientia Marina, 78 (2), 281-302. (doi:10.3989/scimar.03983.30C).

Record type: Article

Abstract

This study provides a compilation of all available information on deep-sea echinoderms from the middle and lower slopes of the Mediterranean Sea, with the aim of providing a unified source of information on the taxonomy of this group. Previous records of species are updated with new data obtained from 223 trawl hauls conducted in 11 cruises within the northwestern Mediterranean Sea between 800 m and 2845 m depth. Valid names, bathymetric ranges and geographic distributions are given for all species. The new data report, for the first time, the presence of the Atlantic echinoid Gracilechinus elegans (Düben and Koren, 1844) in the Mediterranean Sea. We also report the presence of the endemic holothurians Hedingia mediterranea (Bartolini Baldelli, 1914), dredged only once previously in 1914 in the Tyrrhenian Sea, and Penilpidia ludwigi (von Marenzeller, 1893), known previously only from three samples, two in the Aegean Sea and one in the Balearic Sea. Additionally, the deeper limits of the bathymetric distribution of four species have been expanded: the asteroid Ceramaster grenadensis (Perrier, 1881) to 2845 m; the echinoid Brissopsis lyrifera (Forbes, 1841) to 2250 m; and the holothurians Hedingia mediterranea and Holothuria (Panningothuria) forskali Delle Chiaje, 1823, to 1500 m and 850 m, respectively.

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Mecho et al. final manuscript as submitted.pdf - Accepted Manuscript
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More information

Published date: June 2014
Keywords: deep-sea echinoderms, Mediterranean Sea, Gracilechinus elegans, submarine canyons, taxonomy, bathymetric range
Organisations: Ocean and Earth Science, Marine Biogeochemistry

Identifiers

Local EPrints ID: 367650
URI: http://eprints.soton.ac.uk/id/eprint/367650
ISSN: 0214-8358
PURE UUID: 22100803-3c24-46db-bada-6eece3c9cde1

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Date deposited: 04 Aug 2014 12:46
Last modified: 02 Dec 2019 20:42

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Contributors

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

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