Origin and biogeography of the deep-water Mediterranean Hydromedusae including the description of two new species collected in submarine canyons of Northwestern Mediterranean

Two new species of hydromedusae (Foersteria antoniae and Cunina simplex) are described from plankton collected in sediment traps placed in the Lacaze-Duthiers Submarine Canyon and along Banyuls-sur-Mer coast (northwestern Mediterranean). The Mediterranean hydromedusan deep-water fauna contains 41 sp...

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Main Authors: J. M. Gili, J. Bouillon, F. Pages, A. Palanques, P. Puig, S. Heussner
Format: Article
Language:English
Published: Consejo Superior de Investigaciones Científicas 1998-06-01
Series:Scientia Marina
Subjects:
Online Access:http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/961
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author J. M. Gili
J. Bouillon
F. Pages
A. Palanques
P. Puig
S. Heussner
author_facet J. M. Gili
J. Bouillon
F. Pages
A. Palanques
P. Puig
S. Heussner
author_sort J. M. Gili
collection DOAJ
description Two new species of hydromedusae (Foersteria antoniae and Cunina simplex) are described from plankton collected in sediment traps placed in the Lacaze-Duthiers Submarine Canyon and along Banyuls-sur-Mer coast (northwestern Mediterranean). The Mediterranean hydromedusan deep-water fauna contains 41 species which represent 45.5 % of the world-wide deep-sea hydromedusae fauna (90) and 20% of the total number of Mediterranean hydromedusae (204). The Mediterranean deep-water hydromedusan fauna is characterised by a large percentage of holoplanktonic species (61%), mainly Trachymedusae. Nevertheless, contrary to the general opinion, the percentage of meroplanktonic species is equally high. The most original features of this fauna lies however in the importance of the number of endemic species (22%) and in the fact that the majority of them are meroplanktonic Leptomedusae with a supposed bathybenthic stage. Some of the endemic species could still represent relics of the primitive Tethys fauna having survived to the Messinian crisis. The origin of the Mediterranean deep-water hydromedusan fauna is discussed and a general hypothesis is proposed.
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spelling doaj.art-9300e77dd1b54d26a174507726d7b0442022-12-21T18:46:10ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81341998-06-01621-211313410.3989/scimar.1998.62n1-2113952Origin and biogeography of the deep-water Mediterranean Hydromedusae including the description of two new species collected in submarine canyons of Northwestern MediterraneanJ. M. Gili0J. Bouillon1F. Pages2A. Palanques3P. Puig4S. Heussner5Institut de Ciències del Mar (CSIC)Laboratoire de Biologie Marine, Facultés des Sciences, Université Libre de BruxellesInstitut de Ciències del Mar (CSIC)Institut de Ciències del Mar (CSIC)Institut de Ciències del Mar (CSIC)Laboratoire de Sédimentologie et Géologie Marine, Université de PerpignanTwo new species of hydromedusae (Foersteria antoniae and Cunina simplex) are described from plankton collected in sediment traps placed in the Lacaze-Duthiers Submarine Canyon and along Banyuls-sur-Mer coast (northwestern Mediterranean). The Mediterranean hydromedusan deep-water fauna contains 41 species which represent 45.5 % of the world-wide deep-sea hydromedusae fauna (90) and 20% of the total number of Mediterranean hydromedusae (204). The Mediterranean deep-water hydromedusan fauna is characterised by a large percentage of holoplanktonic species (61%), mainly Trachymedusae. Nevertheless, contrary to the general opinion, the percentage of meroplanktonic species is equally high. The most original features of this fauna lies however in the importance of the number of endemic species (22%) and in the fact that the majority of them are meroplanktonic Leptomedusae with a supposed bathybenthic stage. Some of the endemic species could still represent relics of the primitive Tethys fauna having survived to the Messinian crisis. The origin of the Mediterranean deep-water hydromedusan fauna is discussed and a general hypothesis is proposed.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/961hydromedusaesubmarine canyonswestern mediterraneansediment trapsdeep-sea faunabiodiversitysolmissusrhopalonematidae new diagnosisfoersteria antoniaecunina simplex
spellingShingle J. M. Gili
J. Bouillon
F. Pages
A. Palanques
P. Puig
S. Heussner
Origin and biogeography of the deep-water Mediterranean Hydromedusae including the description of two new species collected in submarine canyons of Northwestern Mediterranean
Scientia Marina
hydromedusae
submarine canyons
western mediterranean
sediment traps
deep-sea fauna
biodiversity
solmissus
rhopalonematidae new diagnosis
foersteria antoniae
cunina simplex
title Origin and biogeography of the deep-water Mediterranean Hydromedusae including the description of two new species collected in submarine canyons of Northwestern Mediterranean
title_full Origin and biogeography of the deep-water Mediterranean Hydromedusae including the description of two new species collected in submarine canyons of Northwestern Mediterranean
title_fullStr Origin and biogeography of the deep-water Mediterranean Hydromedusae including the description of two new species collected in submarine canyons of Northwestern Mediterranean
title_full_unstemmed Origin and biogeography of the deep-water Mediterranean Hydromedusae including the description of two new species collected in submarine canyons of Northwestern Mediterranean
title_short Origin and biogeography of the deep-water Mediterranean Hydromedusae including the description of two new species collected in submarine canyons of Northwestern Mediterranean
title_sort origin and biogeography of the deep water mediterranean hydromedusae including the description of two new species collected in submarine canyons of northwestern mediterranean
topic hydromedusae
submarine canyons
western mediterranean
sediment traps
deep-sea fauna
biodiversity
solmissus
rhopalonematidae new diagnosis
foersteria antoniae
cunina simplex
url http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/961
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