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Title Some ecological factors affecting coral reef assemblages off Hurghada, Red Sea, Egypt بعض العوامل ابيئية المؤثرة على الشعاب المرجانية المواجهة لمنطقة الغردقة ، البحر الأحمر ، مصر
Full text http://hdl.handle.net/1834/1302
Date 2005
Author(s) Mohamed, T.A.A.; Mohamed, A.M.
Abstract This journal is published by NIOF, Alexandria, Egypt - Three shallow reef sites were investigated during four seasons Autumn, 2003, Winter, Spring and Summer, 2004) off the Marine Biological Station at Hurghada, Red Sea, Egypt. Thirty-eight scleractinian coral species were recorded at the studied sites. Generally, Twenty-six species were affected by more than one factor (such as high temperature, solar radiation, sedimentation and algae), while the last twelve species remained healthy. The affected species (26 species) were divided into the following: five species were affected by combination of high temperature and direct exposure to solar radiation during the neap tide, eleven species only were affected by sedimentation and increasing algal cover and ten species were affected by high temperature, solar radiation, sedimentation and algae all together. Coral bleaching and death in some cases were due to these factors. Galaxea fascicularis, Seriatopora hystrix and Millepora dichotoma were partially bleached but recovered during the high tide time within weeks. Few species such as Acropora granulosa, Montipora venosa, Goniastrea pectinata and Porites solida were completely bleached and could not recover but died. Repeated leaching events in the future may expose corals to an increasingly hostile environment. - NIOF
Subject(s) Coral bleaching, Agal cover, Solar Radiation, Sea level, Sedimentation, Red Sea; SEDIMENTS
Language en
Publisher Alexandria: National Oceanography and Fisheries
Type of publication Article
Format 45810 bytes; 1734786 bytes; application/pdf; application/pdf
Identifier Egyptian Journal of Aquatic Research, 31 (1), p. 134-145; 1110-0354
Repository Africa - Ocean Data and Information Network of Africa (OdinAfrica)
Added to C-A: 2008-12-22;01:59:27