RT Journal Article
T1 Influencia de El Niño de 1997-98 en las comunidades planctónicas del Mar de Alboran (Mediterraneo Occidental)
T1 Influence of 1997-98’ El Niño event on the planktonic communities from The Alboran Sea (WesternMediterranean)
A1 Hernández Almeida, Iván
A1 Bárcena, María Ángeles
A1 Sierro, Francisco Javier
A1 Flores, José Abel
A1 Calafat, A. M.
AB The Alboran Sea is the westernmost basin of the Mediterranean Sea. Its particular location, as entrance of theAtlantic Surface Water (ASW) into the Mediterranean, has led to an intense paleoceanographic andpaleoclimatic research. Nevertheless, only a limited number of studies provide information related to thedynamics and ecological characteristics of the downward particle flux. In order to determine the influence ofseasonal 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 theinfluence of the Almeria-Oran Front (AOF), which is formed by the interaction between the Atlantic jet andthe denser and more saline Mediterranean waters. Information based on SeaWIFS images of chlorophyll-aconcentration, 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 evolutionof the Western Anticyclonic Gyre (WAG) and to the 1997-98’ El Niño Event. Detailed analyses of theplanktonic foraminifera, diatom and phytolith fluxes reflect seasonal changes in the main hydrographicand 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 thediatoms. Benthic tests were also collected in the sediment trap; highest fluxes of the group were probablyrelated to high bottom water activity. Wind-driven particles were collected along the year, but their fluxesfollow the local wind regime
PB Sociedad Geológica de España
YR 2005
FD 2005
LK http://hdl.handle.net/10272/8724
UL http://hdl.handle.net/10272/8724
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026