Habitat diversity and fish communities on Marsa Gabal El-Rosas reefs, Red Sea | ||
| Catrina: The International Journal of Environmental Sciences | ||
| Article 3, Volume 9, Issue 1, 2014, Pages 15-23 PDF (439.04 K) | ||
| Document Type: Original Article | ||
| DOI: 10.12816/0010684 | ||
| Author | ||
| Magdy Alwany* | ||
| Department of Marine Science, Faculty of Science, Suez Canal University, Ismailia, Egypt | ||
| Abstract | ||
| Ecological variations of habitat diversity and reef fish communities were investigated at Marsa Gabal El-Rosas reefs, north Marsa Alam, Red Sea. Bathymetry and reef profiles were descripted over different habitats at Marsa Gabal El-Rosas reefs. A total of 148 fish species representing 34 families were counted. Transect 6 (T6) had the highest number of species (117 species), while the transect 2 (T2) had the lowest number (40 species). Pomacentridae was the most abundant group at Marsa Gabal El-Rosas reefs. The abundance and distribution patterns of six fish families (Pomacentridae, Labridae, Acanthuridae, Chaetodontidae, Serranidae and Scaridae) were descripted over different habitats at study sites in Marsa Gabal El-Rosas. Some families (Pomacentridae and Serranidae) showed increasing at outer reefs rather than inner reefs; while the others not shows obvious pattern. The dominant trophic guilds in Marsa Gabal El-Rosas reefs were Planktivores, invertebrate-fish feeders, and to a lesser extent, piscivores. Planktivores, invertebrate-fish feeder and herbivores were the most dominate trophic categories at study areas. | ||
| Keywords | ||
| Abundance; diversity; Gabal El-Rosas; Red Sea; reef fish communities | ||
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