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Bolbometopon muricatum, Green humphead parrotfish : fisheries, aquarium
Indo-Pacific: Red Sea and East Africa to Samoa and the Line Islands, north to the Yaeyama and Wake islands, south to the Great Barrier Reef and New Caledonia.
サイズ / 重さ / 年齢
成熟: Lm? range ? - ? cm Max length : 130 cm TL オス/雌雄の選別がない; (Ref. 9710); common length : 70.0 cm SL オス/雌雄の選別がない; (Ref. 9793); 最大公表体重: 46.0 kg (Ref. 2334)
背面の脊椎 (合計) : 9; 背鰭 (合計) : 10; 肛門の骨: 3; 臀鰭: 9. This species is distinguished by the following characters: median predorsal scales 2-4 (may be obscured by hump); 3 scale rows on cheek, 1 (4-6), 2 (3-6), 3 (1-2); pectoral-fin rays 16 or 17; steep profile distinctive; nodules on teeth unique (Ref. 9793); prominent bump on forehead of adult (evident at least 25 cm TL); deep body 2.0-2.5 in SL, with depth increasing with growth; Colour of juveniles brownish to green with 5 vertical rows of whitish spots on side, the primary phase is a dull gray with scattered white spots, gradually becoming uniformly dark green (Ref. 90102, 1602). Body shape (shape guide): fusiform / normal; Cross section: compressed.
Juveniles are found in lagoons while adults inhabit clear outer lagoon and seaward reefs up to depths of at least 30 m (Ref. 9710). They ‘sleep’ in caves and often in shipwrecks at night (Ref. 48636). They are usually in small groups feeding on benthic algae, live corals (Ref. 9710) and shellfishes (Ref. 58784). They sometimes ram their head against corals to facilitate feeding (Ref. 9710). The largest and wariest of the parrotfishes. Assessments showed their vulnerability to overfishing (Ref. 9710). Minimum depth reported taken from Ref. 128797.
Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
好ましい温度 (参照 123201): 25.3 - 29.1, mean 28.2 °C (based on 2570 cells).
系統多様性指数 (参照 82804): PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00796 - 0.02287), b=3.02 (2.88 - 3.16), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
栄養段階 (参照 69278): 2.7 ±0.41 se; based on food items.
Generation time: 11.0 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
