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Phytoplankton productivity during mixing season in the Gulf of Aqaba

Häse, Clivia and Al-Qutob, M. and Lazar, B. (2001) Phytoplankton productivity during mixing season in the Gulf of Aqaba. ASLO 2001 Aquatic Sciences Meeting, Albuquerque, NM, U.S.A., 12.2.2001.

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Abstract

The Gulf of Aqaba is an enclosed, desert-surrounded oligotrophic sea with high water transparency and almost no terrestrial influx. The gulf receives its waters from the Red Sea through the Straits of Tiran, a narrow and shallow sill. Unlike in the northern Red Sea, in the Gulf of Aqaba a deep vertical winter mixing occurs with far reaching consequences for phytoplankton productivity. From our data we extracted the following pattern: Nitrate usually is depleted within the mixed layer, and consequently the overall phytoplankton productivity is nutrient limited in the Gulf of Aqaba even during the mixing season. Not every year the critical depth is passed, and daily phytoplankton production becomes light limited. If light limitation occurs, nitrate shows up in the mixed layer as a result of fast regeneration due to high water temperatures in general. If the weather conditions are such that the mixing is interrupted or stops in this situation, high production events are triggered. These can last maximum about 5 days. The consequences of these findings for production estimates in the Gulf of Aqaba will be discussed.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2001,
Title:Phytoplankton productivity during mixing season in the Gulf of Aqaba
Authors:
AuthorsInstitution or Email of Authors
Häse, CliviaUNSPECIFIED
Al-Qutob, M.UNSPECIFIED
Lazar, B.UNSPECIFIED
Date:2001
Status:Published
Event Title:ASLO 2001 Aquatic Sciences Meeting, Albuquerque, NM, U.S.A., 12.2.2001
Organizer:American Society of Limnology and Oceanography (ASLO)
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Deposited By: elib DLR-Beauftragter
Deposited On:02 Feb 2006
Last Modified:06 Jan 2010 22:02

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