coral

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Royal angelfish (Pygoplites diacanthus), Ras Muhammad National Park, Red Sea, Egypt. The body of the royal angelfish is moderately elongate, is very compressed and can reach a length of up to 25 centimetres (9.8 in) It’s widely distributed throughout the Indo-Pacific and can be found in the Red Sea and Indian Ocean around East Africa and the Maldives, stretching to the Tuamoto Islands, New Caledonia, and Great Barrier Reef. The royal angelfish occurs at depths ranging from 0 to 80m (0 to 262 ft), in coral rich areas of lagoons, reefs, and are also often found in the vicinity of caves. It is a carnivorous species that feeds on sponges and tunicates located throughout reefs and underwater caves. They are a non-migratory species that can be found solitary, in pairs, or groups.
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Royal angelfish (Pygoplites diacanthus), Ras Muhammad National Park, Red Sea, Egypt. The body of the royal angelfish is moderately elongate, is very compressed and can reach a length of up to 25 centimetres (9.8 in) It’s widely distributed throughout the Indo-Pacific and can be found in the Red Sea and Indian Ocean around East Africa and the Maldives, stretching to the Tuamoto Islands, New Caledonia, and Great Barrier Reef. The royal angelfish occurs at depths ranging from 0 to 80m (0 to 262 ft), in coral rich areas of lagoons, reefs, and are also often found in the vicinity of caves. It is a carnivorous species that feeds on sponges and tunicates located throughout reefs and underwater caves. They are a non-migratory species that can be found solitary, in pairs, or groups.
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Yellowbar angelfish (Pomacanthus maculosus), Ras Muhammad National Park, Red Sea, Egypt. This marine angelfish is distributed throughout the Persian Gulf, the northwestern Indian Ocean, and the Red Sea south to 19°S. In 2009 it was recorded off the coast of Lebanon in the eastern Mediterranean, probably as a result of Lessepsian migration from the Red Sea through the Suez Canal. Pomacanthus maculosus is found at depths of between 4 and 50 metres (13 and 164 ft). It is a solitary species that lives in sheltered areas, often where there is a mixture of coral and silt. Their diet is dominated by sea sponges and tunicates, although other invertebrates will be eaten opportunistically. The females attain sexual maturity when the reach around 5.5 years of age and a total length of 21.6 centimetres (8.5 in). The maximum longevity is thought to be 36 years old. They are protogynous hermaphrodites and the older females can change sex to become males when there is a shortage of males. The larvae are planktonic. The yellowbar angelfish is occasionally collected for the aquarium trade and in some parts of the Persian Gulf it has been recorded in fish markets.
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Yellowbar angelfish (Pomacanthus maculosus), Ras Muhammad National Park, Red Sea, Egypt. This marine angelfish is distributed throughout the Persian Gulf, the northwestern Indian Ocean, and the Red Sea south to 19°S. In 2009 it was recorded off the coast of Lebanon in the eastern Mediterranean, probably as a result of Lessepsian migration from the Red Sea through the Suez Canal. Pomacanthus maculosus is found at depths of between 4 and 50 metres (13 and 164 ft). It is a solitary species that lives in sheltered areas, often where there is a mixture of coral and silt. Their diet is dominated by sea sponges and tunicates, although other invertebrates will be eaten opportunistically. The females attain sexual maturity when the reach around 5.5 years of age and a total length of 21.6 centimetres (8.5 in). The maximum longevity is thought to be 36 years old. They are protogynous hermaphrodites and the older females can change sex to become males when there is a shortage of males. The larvae are planktonic. The yellowbar angelfish is occasionally collected for the aquarium trade and in some parts of the Persian Gulf it has been recorded in fish markets.
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Coral (Favia favus), Ras Muhammad National Park, Red Sea, Egypt. This species of stony corals is massive and forms thickly encrusting dome-shaped colonial corals. There is a great diversity of form even among the same species. The corallites project slightly above the surface of the coral and each has its own wall. The septa and costae linked to the corallite wall are well developed and covered by fine teeth. The polyps only extend and feed during the night. Each one has a small number of tapering tentacles which often have a darker coloured tip; these are called stinger tentacles, or sweeper tentacles. They use these to sweep the water to see if any other coral is in its area; if so, then they begin to sting the other coral. This is commonly known as coral war. Each coral is trying to make sure it has enough room around it so it can continue to grow and have more surface area for its offspring.
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Coral (Favia favus), Ras Muhammad National Park, Red Sea, Egypt. This species of stony corals is massive and forms thickly encrusting dome-shaped colonial corals. There is a great diversity of form even among the same species. The corallites project slightly above the surface of the coral and each has its own wall. The septa and costae linked to the corallite wall are well developed and covered by fine teeth. The polyps only extend and feed during the night. Each one has a small number of tapering tentacles which often have a darker coloured tip; these are called stinger tentacles, or sweeper tentacles. They use these to sweep the water to see if any other coral is in its area; if so, then they begin to sting the other coral. This is commonly known as coral war. Each coral is trying to make sure it has enough room around it so it can continue to grow and have more surface area for its offspring.
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