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Title: A pair of crescent-tail bigeye (Priacanthus hamrur) their large eyes and red colouration are characteristic of nocturnal reef fish. Most reef fish either feed during the day or are active at night. Often both shifts on the reef use the same structures for shelter. Nocturnal species generally come from more ancient lineages of fish, and show less specialised feeding adaptations.
A few fish do not show any obvious diurnal behaviour patterns, particularly larger fish-eating predators like barracuda and groupers, although these species often hunt most successfully during the transition periods at dusk and dawn.
Nuweiba, Gulf of Aqaba, Egypt. Red Sea.
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A pair of crescent-tail bigeye (Priacanthus hamrur) their large eyes and red colouration are characteristic of nocturnal reef fish. Most reef fish either feed during the day or are active at night. Often both shifts on the reef use the same structures for shelter. Nocturnal species generally come from more ancient lineages of fish, and show less specialised feeding adaptations.
A few fish do not show any obvious diurnal behaviour patterns, particularly larger fish-eating predators like barracuda and groupers, although these species often hunt most successfully during the transition periods at dusk and dawn.
Nuweiba, Gulf of Aqaba, Egypt. Red Sea.
A few fish do not show any obvious diurnal behaviour patterns, particularly larger fish-eating predators like barracuda and groupers, although these species often hunt most successfully during the transition periods at dusk and dawn.
Nuweiba, Gulf of Aqaba, Egypt. Red Sea.
- coral reef
- crescent-tail bigeye: Priacanthus hamrur
- Gulf of Aqaba
- Nuweiba
- Red Sea
- Sinai
- www.amustard.com
- © Alexander Mustard/www.amustard.com