DISTRIBUTION OF REGULAR SEA URCHINS ON CORAL REEFS NEAR THE SOUTH-EASTERN TIP OF THE SINAI PENINSULA, RED SEA
äºIsrael Journal of Ecology and EvolutionSearch for other papers by AHARON DOTAN in
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Distribution of the common sea urchins inhabiting coral reefs in the Gulf of Elat was studied quantitatively during 1979â1981. Densities of most populations conformed to a regular pattern, determined mainly by exposure to different levels of water movement, and varied little over time. Heterocentrotus mammillatus inhabited reefs exposed to strong wave action, whereas Diadema setosum was confined to sheltered habitats. Echinometra mathaei was the most abundant species on shallow reefs, and was rare in places deeper than a few metres. The distribution of Tripneustes grattila was irregular and its populations varied greatly over time. Translocation experiments indicated that Diadema setosum survived well in protected habitats, but avoided areas of strong water movement. Heterocentrotus mammillatus, on the other hand, settled poorly in sheltered habitats and survived better on exposed fore-reefs.
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DISTRIBUTION OF REGULAR SEA URCHINS ON CORAL REEFS NEAR THE SOUTH-EASTERN TIP OF THE SINAI PENINSULA, RED SEA
äºIsrael Journal of Ecology and EvolutionSearch for other papers by AHARON DOTAN in
Current site
Google Scholar
PubMed
Distribution of the common sea urchins inhabiting coral reefs in the Gulf of Elat was studied quantitatively during 1979â1981. Densities of most populations conformed to a regular pattern, determined mainly by exposure to different levels of water movement, and varied little over time. Heterocentrotus mammillatus inhabited reefs exposed to strong wave action, whereas Diadema setosum was confined to sheltered habitats. Echinometra mathaei was the most abundant species on shallow reefs, and was rare in places deeper than a few metres. The distribution of Tripneustes grattila was irregular and its populations varied greatly over time. Translocation experiments indicated that Diadema setosum survived well in protected habitats, but avoided areas of strong water movement. Heterocentrotus mammillatus, on the other hand, settled poorly in sheltered habitats and survived better on exposed fore-reefs.
| å ¨é¨æé´ | è¿å»ä¸å¹´ | è¿å»30天 | |
|---|---|---|---|
| æè¦æµè§æ¬¡æ° | 288 | 52 | 6 |
| å ¨ææµè§æ¬¡æ° | 25 | 0 | 0 |
| PDFä¸è½½æ¬¡æ° | 35 | 0 | 0 |
