Categories
SUNAIFI - صنيفى - DUSKY SPINEFOOT
Environment/Climate/Range | Marine; reef-associated; depth range 2 - 40 m. Subtropical, 35°N - 35°S |
Distribution | Western Indian Ocean: Persian Gulf; Red Sea and East Africa to islands in the western Indian Ocean. Immigrant to Mediterranean via the Suez Canal. |
Size / Weight / Age | It attains a Max length : 30.0 cm; common length : 20.0 cm |
Short description | Dorsal spines (total): 13 - 14; Dorsal soft rays (total): 10; Anal spines: 7; Anal soft rays: 9; Vertebrae: 13. Regional variation in color exists. Anterior spines of median fins slender and pungent, posterior spines stout, all venomous including that on the nape. Preopercular angle 87-97 degrees. Anterior nostril with a long, broad flap covering posterior nostril when depressed. Variable cheek scalation. Midline of thorax devoid of scales between the pelvic ridges |
Biology | Found in small schools in very shallow water close to the bottom. Prefer hard bottoms of compacted sand with rock or coral debris. Solitary adults and groups of 3 or 4 adults have also been observed. Feed on a wide range of benthic algae. May suddenly stop and erect its fins (dorsal, anal and pelvic) presenting an encircling array of spined to potential predators; these spines are venomous. A food fish that is occasionally poisonous. Probably does not adapt well in captivity. |