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Pascale Chabanet - One of the best experts on this subject based on the ideXlab platform.

  • Inventory of echinoderms in the Iles Eparses (Europa, Glorieuses, Juan de Nova), Mozambique Channel, France
    Acta Oecologica, 2016
    Co-Authors: Chantal Conand, Thierry Mulochau, Sabine Stöhr, Marc Eleaume, Pascale Chabanet
    Abstract:

    The multidisciplinary programme BioReCIE (Biodiversity, Resources and Conservation of coral reefs at Eparses Is.) inventoried multiple marine animal groups in order to provide information on the coral reef health of the Iles Eparses. All five classes of echinoderms were observed by visual census, photographed and later identified. About 100 species are reported, including a few unidentified ones which require further studies. The Holothuroidea and Ophiuroidea are the most diverse. One new species, the asterinid Aquilonastra chantalae O'Loughlin and McKenzie (2013), was discovered in addition to several new records of echinoderms. The illegal fishery targeting holothurians, which are presently highly valuable resources in this zone, is discussed.

  • First inventory of the echinoderms from Juan de Nova (Iles Eparses, France) in the Mozambique Channel, South Western Indian Ocean
    Western Indian Ocean journal of marine science, 2014
    Co-Authors: Thierry Mulochau, Sabine Stöhr, Marc Eleaume, Chantal Conand, Pascale Chabanet
    Abstract:

    Juan de Nova is one of the Iles Eparses, French islands scattered in the Mozambique Channel (Western India Ocean). They have been kept isolated of the anthropogenic influences which makes them rare areas to study biodiversity and provides elements of comparison with areas that are strongly impacted by urbanization and fishing. The program Biorecie (Biodiversity, Resources and Conservation of Eparses Islands) was conducted to complete the inventories of several marine groups including the echinoderms, which had never been assessed in Juan de Nova before. A multidisciplinary team explored the reef slopes of the island by scuba diving down to a depth of 25 metersand the reef flats at low tide collecting specimens and taking photos for identification. The total species richness for echinoderms was 60 with 51 on the reef flats and lagoon, and 22 on the reef slopes. We have sampled 21 species of Holothuroidea, 16 Ophiuroidea, 10 Echinoidea, 7 Asteroidea, and 6 Crinoidea. The commercial species of Holothuroidea, some of which are now classified as endangered on the red list of UICN, like Thelenota ananas and Holothuria nobilis , were common on the reef flats, lagoon and reef slopes of the island, and show the importance of efficiently these sanctuaries of biodiversity.

Nele Johannsen - One of the best experts on this subject based on the ideXlab platform.

  • depth zonation of northwest pacific deep sea macrofauna
    Progress in Oceanography, 2019
    Co-Authors: Angelika Brandt, Inna L Alalykina, Saskia Brix, Nils Brenke, Magdalena Blazewicz, Olga A Golovan, Nele Johannsen
    Abstract:

    Abstract Areas of the Northwest (NW) Pacific have been investigated in the last century from board of the Russian RV Vityaz. During the past decade intensive collaboration between German and Russian scientists has yielded a wealth of precious material partly from unknown areas. The samples are comparable and were retrieved using comparative epibenthic sledge (EBS) deployments following a standardized sampling approach. In the present paper we investigate a large number of EBS samples (76) from a widespread geographic area. Macrofaunal high-taxonomic-level taxa composition is analysed based on four joint expeditions performed between 2010 and 2016, led by German and Russian teams in the NW Pacific, the Sea of Japan, the Sea of Okhotsk, and the Kuril-Kamchatka Trench and adjacent abyssal plain. In total, 410,279 invertebrates were sampled with an epibenthic sledge and more than half of all animals were collected in the Sea of Japan (240,803 individuals). Arthropods, represented by crustaceans, were dominant throughout all geographic areas (199,044 ind.), followed by Annelida (84,751 ind.), Echinodermata (46,317 ind.), and Mollusca (43,391 ind.). Within these phyla, eleven taxa occurred with more than 10,000 individuals in the samples from all geographic areas. The most numerous were the Peracarida (104,139 ind., represented by Isopoda [42,511 ind.], Amphipoda [29,375 ind.], Cumacea [16,364 ind.], Tanaidacea [15,889 ind.]), followed by Polychaeta (84,751 ind.), Copepoda 76,496 ind., Bivalvia (36,286 ind.), Ophiuroidea (34,818 ind.), Nematoda (24,968 ind.), Ostracoda (11,304 ind.), and Holothuroidea (10,772 ind.). The pattern of occurrence per taxon varied between geographic areas. In general, Bivalvia and Holothuroidea were more frequently recorded from hadal stations, but no significant differences could be observed between geographic areas (Sea of Japan, Sea of Okhotsk, and open NW Pacific) at high level taxa (classes, subclasses, superorders) when community composition is compared and depth differences are taken into account. However, significant differences between all depth zones (p

Chantal Conand - One of the best experts on this subject based on the ideXlab platform.

  • Marine Biodiversity of La Reunion Island: Echinoderms
    Western Indian Ocean Journal of Marine Science, 2018
    Co-Authors: Chantal Conand, Thierry Mulochau, Sonia Ribes-beaudemoulin, Florence Trentin, Emilie Boissin
    Abstract:

    The inventories of marine species of La Reunion (South West Indian Ocean) are still incomplete for several phylum including the Echinodermata. The present knowledge for the five classes is reported here, in the habitats below (1) and above (2) 50 m depth. The overall diversity for (1) is 136 species and for (2), 48 species. On the whole, as in thebroader western Indian Ocean, the Holothuroidea and the Ophiuroidea are the dominant classes. Several new specieshave been described and many still need further research

  • Inventory of echinoderms in the Iles Eparses (Europa, Glorieuses, Juan de Nova), Mozambique Channel, France
    Acta Oecologica, 2016
    Co-Authors: Chantal Conand, Thierry Mulochau, Sabine Stöhr, Marc Eleaume, Pascale Chabanet
    Abstract:

    The multidisciplinary programme BioReCIE (Biodiversity, Resources and Conservation of coral reefs at Eparses Is.) inventoried multiple marine animal groups in order to provide information on the coral reef health of the Iles Eparses. All five classes of echinoderms were observed by visual census, photographed and later identified. About 100 species are reported, including a few unidentified ones which require further studies. The Holothuroidea and Ophiuroidea are the most diverse. One new species, the asterinid Aquilonastra chantalae O'Loughlin and McKenzie (2013), was discovered in addition to several new records of echinoderms. The illegal fishery targeting holothurians, which are presently highly valuable resources in this zone, is discussed.

  • First inventory of the echinoderms from Juan de Nova (Iles Eparses, France) in the Mozambique Channel, South Western Indian Ocean
    Western Indian Ocean journal of marine science, 2014
    Co-Authors: Thierry Mulochau, Sabine Stöhr, Marc Eleaume, Chantal Conand, Pascale Chabanet
    Abstract:

    Juan de Nova is one of the Iles Eparses, French islands scattered in the Mozambique Channel (Western India Ocean). They have been kept isolated of the anthropogenic influences which makes them rare areas to study biodiversity and provides elements of comparison with areas that are strongly impacted by urbanization and fishing. The program Biorecie (Biodiversity, Resources and Conservation of Eparses Islands) was conducted to complete the inventories of several marine groups including the echinoderms, which had never been assessed in Juan de Nova before. A multidisciplinary team explored the reef slopes of the island by scuba diving down to a depth of 25 metersand the reef flats at low tide collecting specimens and taking photos for identification. The total species richness for echinoderms was 60 with 51 on the reef flats and lagoon, and 22 on the reef slopes. We have sampled 21 species of Holothuroidea, 16 Ophiuroidea, 10 Echinoidea, 7 Asteroidea, and 6 Crinoidea. The commercial species of Holothuroidea, some of which are now classified as endangered on the red list of UICN, like Thelenota ananas and Holothuria nobilis , were common on the reef flats, lagoon and reef slopes of the island, and show the importance of efficiently these sanctuaries of biodiversity.

Thierry Mulochau - One of the best experts on this subject based on the ideXlab platform.

  • Marine Biodiversity of La Reunion Island: Echinoderms
    Western Indian Ocean Journal of Marine Science, 2018
    Co-Authors: Chantal Conand, Thierry Mulochau, Sonia Ribes-beaudemoulin, Florence Trentin, Emilie Boissin
    Abstract:

    The inventories of marine species of La Reunion (South West Indian Ocean) are still incomplete for several phylum including the Echinodermata. The present knowledge for the five classes is reported here, in the habitats below (1) and above (2) 50 m depth. The overall diversity for (1) is 136 species and for (2), 48 species. On the whole, as in thebroader western Indian Ocean, the Holothuroidea and the Ophiuroidea are the dominant classes. Several new specieshave been described and many still need further research

  • Inventory of echinoderms in the Iles Eparses (Europa, Glorieuses, Juan de Nova), Mozambique Channel, France
    Acta Oecologica, 2016
    Co-Authors: Chantal Conand, Thierry Mulochau, Sabine Stöhr, Marc Eleaume, Pascale Chabanet
    Abstract:

    The multidisciplinary programme BioReCIE (Biodiversity, Resources and Conservation of coral reefs at Eparses Is.) inventoried multiple marine animal groups in order to provide information on the coral reef health of the Iles Eparses. All five classes of echinoderms were observed by visual census, photographed and later identified. About 100 species are reported, including a few unidentified ones which require further studies. The Holothuroidea and Ophiuroidea are the most diverse. One new species, the asterinid Aquilonastra chantalae O'Loughlin and McKenzie (2013), was discovered in addition to several new records of echinoderms. The illegal fishery targeting holothurians, which are presently highly valuable resources in this zone, is discussed.

  • First inventory of the echinoderms from Juan de Nova (Iles Eparses, France) in the Mozambique Channel, South Western Indian Ocean
    Western Indian Ocean journal of marine science, 2014
    Co-Authors: Thierry Mulochau, Sabine Stöhr, Marc Eleaume, Chantal Conand, Pascale Chabanet
    Abstract:

    Juan de Nova is one of the Iles Eparses, French islands scattered in the Mozambique Channel (Western India Ocean). They have been kept isolated of the anthropogenic influences which makes them rare areas to study biodiversity and provides elements of comparison with areas that are strongly impacted by urbanization and fishing. The program Biorecie (Biodiversity, Resources and Conservation of Eparses Islands) was conducted to complete the inventories of several marine groups including the echinoderms, which had never been assessed in Juan de Nova before. A multidisciplinary team explored the reef slopes of the island by scuba diving down to a depth of 25 metersand the reef flats at low tide collecting specimens and taking photos for identification. The total species richness for echinoderms was 60 with 51 on the reef flats and lagoon, and 22 on the reef slopes. We have sampled 21 species of Holothuroidea, 16 Ophiuroidea, 10 Echinoidea, 7 Asteroidea, and 6 Crinoidea. The commercial species of Holothuroidea, some of which are now classified as endangered on the red list of UICN, like Thelenota ananas and Holothuria nobilis , were common on the reef flats, lagoon and reef slopes of the island, and show the importance of efficiently these sanctuaries of biodiversity.

Angelika Brandt - One of the best experts on this subject based on the ideXlab platform.

  • depth zonation of northwest pacific deep sea macrofauna
    Progress in Oceanography, 2019
    Co-Authors: Angelika Brandt, Inna L Alalykina, Saskia Brix, Nils Brenke, Magdalena Blazewicz, Olga A Golovan, Nele Johannsen
    Abstract:

    Abstract Areas of the Northwest (NW) Pacific have been investigated in the last century from board of the Russian RV Vityaz. During the past decade intensive collaboration between German and Russian scientists has yielded a wealth of precious material partly from unknown areas. The samples are comparable and were retrieved using comparative epibenthic sledge (EBS) deployments following a standardized sampling approach. In the present paper we investigate a large number of EBS samples (76) from a widespread geographic area. Macrofaunal high-taxonomic-level taxa composition is analysed based on four joint expeditions performed between 2010 and 2016, led by German and Russian teams in the NW Pacific, the Sea of Japan, the Sea of Okhotsk, and the Kuril-Kamchatka Trench and adjacent abyssal plain. In total, 410,279 invertebrates were sampled with an epibenthic sledge and more than half of all animals were collected in the Sea of Japan (240,803 individuals). Arthropods, represented by crustaceans, were dominant throughout all geographic areas (199,044 ind.), followed by Annelida (84,751 ind.), Echinodermata (46,317 ind.), and Mollusca (43,391 ind.). Within these phyla, eleven taxa occurred with more than 10,000 individuals in the samples from all geographic areas. The most numerous were the Peracarida (104,139 ind., represented by Isopoda [42,511 ind.], Amphipoda [29,375 ind.], Cumacea [16,364 ind.], Tanaidacea [15,889 ind.]), followed by Polychaeta (84,751 ind.), Copepoda 76,496 ind., Bivalvia (36,286 ind.), Ophiuroidea (34,818 ind.), Nematoda (24,968 ind.), Ostracoda (11,304 ind.), and Holothuroidea (10,772 ind.). The pattern of occurrence per taxon varied between geographic areas. In general, Bivalvia and Holothuroidea were more frequently recorded from hadal stations, but no significant differences could be observed between geographic areas (Sea of Japan, Sea of Okhotsk, and open NW Pacific) at high level taxa (classes, subclasses, superorders) when community composition is compared and depth differences are taken into account. However, significant differences between all depth zones (p