منابع مشابه
Distribution and Abundance of the Corals around Hengam and Farurgan Islands, the Persian Gulf
The percentage cover and distribution of scleractinian corals were studied at two Iranian islands in the Persian Gulf. Survey techniques involved the use of 20-m line transects placed at 4-9 m depth interval, parallel to the shore. GIS based maps were employed to show the distribution of hard corals. In Farurgan Island, hard coral cover was concentrated in the west and north-west of the island,...
متن کاملCoral growth, bioerosion, and secondary accretion of living orbicellid corals from mesophotic reefs in the US Virgin Islands
Growth rates of the major Caribbean reef framework-building coral Orbicella spp. decrease with increasing water depth and light attenuation. However, reliable, spatially distributed growth rates for corals deeper than 30 m are rare, and the combined influence of coral framework accretion, secondary framework accretion, and framework macroboring on net framework calcification in these habitats i...
متن کامل2. General Background on Corals and Coral Reefs
2.1.1 Taxonomy and morphology of scleractinian corals Stony corals are marine invertebrates in the phylum Cnidaria (Coelenterata) that secrete a calcium carbonate skeleton. Cnidaria is the only phylum that is diploblastic (i.e., two-tissue layers); all higher taxa are triploblastic (three-tissue layers) and thus contain a true mesoderm. The phylum is named Cnidaria because organisms use cnidae ...
متن کاملBiodiversity and distribution patterns of coral reef ecosystems in ROPME Sea Area (Inner part: Persian Gulf -Iranian waters)
The Persian Gulf is northern part of the ROPME Sea Area (RSA), and is semi-enclosed shallow sea which located in subtropical climate. Measuring is 1000km in length, varying in width 60-340km, and average depth is about 35m and maximum depth is 105m. This research was carried out during 2005-2010 for reviewing the corals status and determination of coral reef habitats distribution in the Persian...
متن کاملEcological Health Assessment of the Surface Sediments of the Coral Reefs of Khark and Kharko Islands (Persian Gulf, Iran)
To assess the ecological risk of the coral reef habitats of Khark and Kharko islands in the Persian Gulf, (Bushehr province), the surface sediment samples were collected from seven stations, in September 2019. The islands have a great ecological value due to the presence of coral reefs. The amounts of potentially toxic elements, sediment texture, total organic matter, total phosphorus and total...
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ژورنال
عنوان ژورنال: Nature
سال: 1872
ISSN: 0028-0836,1476-4687
DOI: 10.1038/007119a0