Influencia de El Niño de 1997-98 en las comunidades planctónicas del Mar de Alboran (Mediterraneo Occidental)
The Alboran Sea is the westernmost basin of the Mediterranean Sea. Its particular location, as entrance of the Atlantic Surface Water (ASW) into the Mediterranean, has led to an intense paleoceanographic and paleoclimatic research. Nevertheless, only a limited number of studies provide information r...
Main Authors: | , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | Spanish |
Published: |
Sociedad Geológica de España
2005
|
Subjects: | |
Online Access: | http://hdl.handle.net/10272/8724 |
id |
ftunivhuelva:oai:rabida.uhu.es:10272/8724 |
---|---|
record_format |
openpolar |
spelling |
ftunivhuelva:oai:rabida.uhu.es:10272/8724 2023-05-15T18:01:03+02:00 Influencia de El Niño de 1997-98 en las comunidades planctónicas del Mar de Alboran (Mediterraneo Occidental) Influence of 1997-98’ El Niño event on the planktonic communities from The Alboran Sea (Western Mediterranean) Hernández Almeida, Iván Bárcena, María Ángeles Sierro, Francisco Javier Flores, José Abel Calafat, A. M. 2005 http://hdl.handle.net/10272/8724 spa spa Sociedad Geológica de España http://hdl.handle.net/10272/8724 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess CC-BY-NC-ND Microfossil fluxes Sediment traps El Niño Event 1997-98 Oceanographic response Alboran Sea info:eu-repo/semantics/article 2005 ftunivhuelva 2021-08-11T19:41:44Z The Alboran Sea is the westernmost basin of the Mediterranean Sea. Its particular location, as entrance of the Atlantic Surface Water (ASW) into the Mediterranean, has led to an intense paleoceanographic and paleoclimatic research. Nevertheless, only a limited number of studies provide information related to the dynamics and ecological characteristics of the downward particle flux. In order to determine the influence of seasonal oceanographic changes on the export of particles in the Alboran Sea, one mooring line, ALB-5-F, was deployed from July 1997 to May 1998 at 35º55.47’N/01º30.77’W. The mooring location was under the influence of the Almeria-Oran Front (AOF), which is formed by the interaction between the Atlantic jet and the denser and more saline Mediterranean waters. Information based on SeaWIFS images of chlorophyll-a concentration, current-meter, and meteorological data on wind direction and intensity were used. The annual oceanographic pattern of the AOF during the studied period was directly related to the evolution of the Western Anticyclonic Gyre (WAG) and to the 1997-98’ El Niño Event. Detailed analyses of the planktonic foraminifera, diatom and phytolith fluxes reflect seasonal changes in the main hydrographic and meteorological features in the eastern Alboran Sea. El Niño Event caused a sea surface temperature (SST) increase during fall that forced the proliferation of Globigerinoides ruber and the reduction of the diatoms. Benthic tests were also collected in the sediment trap; highest fluxes of the group were probably related to high bottom water activity. Wind-driven particles were collected along the year, but their fluxes follow the local wind regime Article in Journal/Newspaper Planktonic foraminifera Universidad de Huelva: Arias Montano |
institution |
Open Polar |
collection |
Universidad de Huelva: Arias Montano |
op_collection_id |
ftunivhuelva |
language |
Spanish |
topic |
Microfossil fluxes Sediment traps El Niño Event 1997-98 Oceanographic response Alboran Sea |
spellingShingle |
Microfossil fluxes Sediment traps El Niño Event 1997-98 Oceanographic response Alboran Sea Hernández Almeida, Iván Bárcena, María Ángeles Sierro, Francisco Javier Flores, José Abel Calafat, A. M. Influencia de El Niño de 1997-98 en las comunidades planctónicas del Mar de Alboran (Mediterraneo Occidental) |
topic_facet |
Microfossil fluxes Sediment traps El Niño Event 1997-98 Oceanographic response Alboran Sea |
description |
The Alboran Sea is the westernmost basin of the Mediterranean Sea. Its particular location, as entrance of the Atlantic Surface Water (ASW) into the Mediterranean, has led to an intense paleoceanographic and paleoclimatic research. Nevertheless, only a limited number of studies provide information related to the dynamics and ecological characteristics of the downward particle flux. In order to determine the influence of seasonal oceanographic changes on the export of particles in the Alboran Sea, one mooring line, ALB-5-F, was deployed from July 1997 to May 1998 at 35º55.47’N/01º30.77’W. The mooring location was under the influence of the Almeria-Oran Front (AOF), which is formed by the interaction between the Atlantic jet and the denser and more saline Mediterranean waters. Information based on SeaWIFS images of chlorophyll-a concentration, current-meter, and meteorological data on wind direction and intensity were used. The annual oceanographic pattern of the AOF during the studied period was directly related to the evolution of the Western Anticyclonic Gyre (WAG) and to the 1997-98’ El Niño Event. Detailed analyses of the planktonic foraminifera, diatom and phytolith fluxes reflect seasonal changes in the main hydrographic and meteorological features in the eastern Alboran Sea. El Niño Event caused a sea surface temperature (SST) increase during fall that forced the proliferation of Globigerinoides ruber and the reduction of the diatoms. Benthic tests were also collected in the sediment trap; highest fluxes of the group were probably related to high bottom water activity. Wind-driven particles were collected along the year, but their fluxes follow the local wind regime |
format |
Article in Journal/Newspaper |
author |
Hernández Almeida, Iván Bárcena, María Ángeles Sierro, Francisco Javier Flores, José Abel Calafat, A. M. |
author_facet |
Hernández Almeida, Iván Bárcena, María Ángeles Sierro, Francisco Javier Flores, José Abel Calafat, A. M. |
author_sort |
Hernández Almeida, Iván |
title |
Influencia de El Niño de 1997-98 en las comunidades planctónicas del Mar de Alboran (Mediterraneo Occidental) |
title_short |
Influencia de El Niño de 1997-98 en las comunidades planctónicas del Mar de Alboran (Mediterraneo Occidental) |
title_full |
Influencia de El Niño de 1997-98 en las comunidades planctónicas del Mar de Alboran (Mediterraneo Occidental) |
title_fullStr |
Influencia de El Niño de 1997-98 en las comunidades planctónicas del Mar de Alboran (Mediterraneo Occidental) |
title_full_unstemmed |
Influencia de El Niño de 1997-98 en las comunidades planctónicas del Mar de Alboran (Mediterraneo Occidental) |
title_sort |
influencia de el niño de 1997-98 en las comunidades planctónicas del mar de alboran (mediterraneo occidental) |
publisher |
Sociedad Geológica de España |
publishDate |
2005 |
url |
http://hdl.handle.net/10272/8724 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
http://hdl.handle.net/10272/8724 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766170364998582272 |