ELAT (GULF OF AQABA) LITTORAL: LIFE ON THE RED LINE OF BIODEGRADATION
äºIsrael Journal of Ecology and EvolutionSearch for other papers by LEV FISHELSON in
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During the last three decades, intensive industrialization along the head of the Gulf of Aqaba has adversely affected the shallow water community, including the fringing coral reef. The main factors in this biodegradation and species extinction appear to be domestic and industrial effluents, dust from fertilizers from the harbor-loading station, and oil spills. In the last decade, tourism became a major negative factor, especially at the Elat Coral Reserve. The most prominent result of this deterioration is the depletion of the soft-bottom communities, with a serious decline in macro-infauna, such as echinoderms and some gastropod molluscs, and the dominance of nematodes and polychaetes on the polluted sites. The decline is also documented in the intertidal Tetraclita-Cellana community, which disappeared along with accompanying species. This has also been observed in the Coral Reserve. A similar decline is also seen in tidal fish populations of blennies, gobies, and singnathids. Pollution in the Coral Reserve has also adversely affected the dominant branching coral species, destroying most of these, thus causing the almost complete disappearance of symbiotic fish species, such as Dascyllus aruanus, Gobiodon spp., Paragobiodon spp., and Pseudochromis olivaceus, that formerly sheltered in these corals. Data are provided on the endangered species of the Elat littoral, including the Coral Reserve. It is suggested that only direct and immediate prevention of land-borne pollutants can halt the collapse of the littoral coral communites and, thus, enable their regeneration.
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ELAT (GULF OF AQABA) LITTORAL: LIFE ON THE RED LINE OF BIODEGRADATION
äºIsrael Journal of Ecology and EvolutionSearch for other papers by LEV FISHELSON in
Current site
Google Scholar
PubMed
During the last three decades, intensive industrialization along the head of the Gulf of Aqaba has adversely affected the shallow water community, including the fringing coral reef. The main factors in this biodegradation and species extinction appear to be domestic and industrial effluents, dust from fertilizers from the harbor-loading station, and oil spills. In the last decade, tourism became a major negative factor, especially at the Elat Coral Reserve. The most prominent result of this deterioration is the depletion of the soft-bottom communities, with a serious decline in macro-infauna, such as echinoderms and some gastropod molluscs, and the dominance of nematodes and polychaetes on the polluted sites. The decline is also documented in the intertidal Tetraclita-Cellana community, which disappeared along with accompanying species. This has also been observed in the Coral Reserve. A similar decline is also seen in tidal fish populations of blennies, gobies, and singnathids. Pollution in the Coral Reserve has also adversely affected the dominant branching coral species, destroying most of these, thus causing the almost complete disappearance of symbiotic fish species, such as Dascyllus aruanus, Gobiodon spp., Paragobiodon spp., and Pseudochromis olivaceus, that formerly sheltered in these corals. Data are provided on the endangered species of the Elat littoral, including the Coral Reserve. It is suggested that only direct and immediate prevention of land-borne pollutants can halt the collapse of the littoral coral communites and, thus, enable their regeneration.
| å ¨é¨æé´ | è¿å»ä¸å¹´ | è¿å»30天 | |
|---|---|---|---|
| æè¦æµè§æ¬¡æ° | 177 | 59 | 20 |
| å ¨ææµè§æ¬¡æ° | 17 | 0 | 0 |
| PDFä¸è½½æ¬¡æ° | 14 | 0 | 0 |
