Deep-sea prosobranch molluscs in Northwest Africa
The aim of this work is the study of the prosobranch molluscs collected during the 11 research surveys carried out in Northwest Africa onboard R/V Dr. Fridtjof Nansen and R/V Vizconde de Eza between 2002 and 2012, within the framework of the EcoAfrik and the FAO EAF-Nansen projects. The working area...
Main Authors: | , , , |
---|---|
Format: | Conference Object |
Language: | English |
Published: |
2015
|
Subjects: | |
Online Access: | http://hdl.handle.net/10508/9801 http://hdl.handle.net/10261/328324 |
id |
ftcsic:oai:digital.csic.es:10261/328324 |
---|---|
record_format |
openpolar |
spelling |
ftcsic:oai:digital.csic.es:10261/328324 2024-02-11T10:03:54+01:00 Deep-sea prosobranch molluscs in Northwest Africa Castillo, Sara Ramil, Francisco Mohamed Moctar, S.M. Ramos, Ana Aveiro (Portugal) Atlantic Ocean Central Atlantic Eastern Central Atlantic Guinea waters 2004-2012 2015-10-01 http://hdl.handle.net/10508/9801 http://hdl.handle.net/10261/328324 en eng #PLACEHOLDER_PARENT_METADATA_VALUE# EcoAfrik 10000-01-01 Centro Oceanográfico de Vigo 14th Deep-Sea Biology Symposium. (31/08/2015 - 04/09/2015. Aveiro (Portugal)). today. conferenceObject. En: , . http://hdl.handle.net/10508/9801 http://hdl.handle.net/10261/328324 21446 embargo_100000101 Centro Oceanográfico de Vigo Pesquerías Biodiversity Distribution Molluscs Prosobranchia Northwest Africa comunicación de congreso http://purl.org/coar/resource_type/c_5794 2015 ftcsic 2024-01-16T11:49:20Z The aim of this work is the study of the prosobranch molluscs collected during the 11 research surveys carried out in Northwest Africa onboard R/V Dr. Fridtjof Nansen and R/V Vizconde de Eza between 2002 and 2012, within the framework of the EcoAfrik and the FAO EAF-Nansen projects. The working area extended from Cape Spartel (Gibraltar Strait) to Guinean coasts, and includes 1350 trawling stations deployed between 100 and 1748 m depth. The samples were collected using mainly a commercial otter trawl and a beam-trawl in soft bottoms; a rock dredge was also employed for the study of hard bottoms located along the Mauritanian slope. Prosobranchs were collected in 483 stations, representing 36% of the sampled stations. Preliminary identifications reported about 120 species belonging to 29 different families; Muricidae, Naticidae and Nassariidae showed the highest specific richness within the families. The most frequent species were Xenophora crispa in Morocco, Charonia lampas in Western Sahara, Nassarius wolffi in the area stretching between Cape Blanc (Mauritania) and Cape Verde (Senegal), and Stellaria testigera digitata in the southern zone. The analysis of bathymetric distributions reveals a progressive decreasing of specific richness with increasing depth. Abundance and biomass remained constant up to 500 m but sharply dropping beyond this depth. Deeper than 1400 m prosobranch were not collected. Conference Object Fridtjof Nansen Digital.CSIC (Spanish National Research Council) Fridtjof ENVELOPE(-56.717,-56.717,-63.567,-63.567) |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Centro Oceanográfico de Vigo Pesquerías Biodiversity Distribution Molluscs Prosobranchia Northwest Africa |
spellingShingle |
Centro Oceanográfico de Vigo Pesquerías Biodiversity Distribution Molluscs Prosobranchia Northwest Africa Castillo, Sara Ramil, Francisco Mohamed Moctar, S.M. Ramos, Ana Deep-sea prosobranch molluscs in Northwest Africa |
topic_facet |
Centro Oceanográfico de Vigo Pesquerías Biodiversity Distribution Molluscs Prosobranchia Northwest Africa |
description |
The aim of this work is the study of the prosobranch molluscs collected during the 11 research surveys carried out in Northwest Africa onboard R/V Dr. Fridtjof Nansen and R/V Vizconde de Eza between 2002 and 2012, within the framework of the EcoAfrik and the FAO EAF-Nansen projects. The working area extended from Cape Spartel (Gibraltar Strait) to Guinean coasts, and includes 1350 trawling stations deployed between 100 and 1748 m depth. The samples were collected using mainly a commercial otter trawl and a beam-trawl in soft bottoms; a rock dredge was also employed for the study of hard bottoms located along the Mauritanian slope. Prosobranchs were collected in 483 stations, representing 36% of the sampled stations. Preliminary identifications reported about 120 species belonging to 29 different families; Muricidae, Naticidae and Nassariidae showed the highest specific richness within the families. The most frequent species were Xenophora crispa in Morocco, Charonia lampas in Western Sahara, Nassarius wolffi in the area stretching between Cape Blanc (Mauritania) and Cape Verde (Senegal), and Stellaria testigera digitata in the southern zone. The analysis of bathymetric distributions reveals a progressive decreasing of specific richness with increasing depth. Abundance and biomass remained constant up to 500 m but sharply dropping beyond this depth. Deeper than 1400 m prosobranch were not collected. |
format |
Conference Object |
author |
Castillo, Sara Ramil, Francisco Mohamed Moctar, S.M. Ramos, Ana |
author_facet |
Castillo, Sara Ramil, Francisco Mohamed Moctar, S.M. Ramos, Ana |
author_sort |
Castillo, Sara |
title |
Deep-sea prosobranch molluscs in Northwest Africa |
title_short |
Deep-sea prosobranch molluscs in Northwest Africa |
title_full |
Deep-sea prosobranch molluscs in Northwest Africa |
title_fullStr |
Deep-sea prosobranch molluscs in Northwest Africa |
title_full_unstemmed |
Deep-sea prosobranch molluscs in Northwest Africa |
title_sort |
deep-sea prosobranch molluscs in northwest africa |
publishDate |
2015 |
url |
http://hdl.handle.net/10508/9801 http://hdl.handle.net/10261/328324 |
op_coverage |
Aveiro (Portugal) Atlantic Ocean Central Atlantic Eastern Central Atlantic Guinea waters 2004-2012 |
long_lat |
ENVELOPE(-56.717,-56.717,-63.567,-63.567) |
geographic |
Fridtjof |
geographic_facet |
Fridtjof |
genre |
Fridtjof Nansen |
genre_facet |
Fridtjof Nansen |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# EcoAfrik 10000-01-01 Centro Oceanográfico de Vigo 14th Deep-Sea Biology Symposium. (31/08/2015 - 04/09/2015. Aveiro (Portugal)). today. conferenceObject. En: , . http://hdl.handle.net/10508/9801 http://hdl.handle.net/10261/328324 21446 |
op_rights |
embargo_100000101 |
_version_ |
1790600246341926912 |