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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Poey.
Taxonomic Remarks
Sister species: Acanthurus bahianus (Ref. 087362).
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
laut berasosiasi dengan karang; kisaran kedalaman 11 - 45 m (Ref. 3194). Tropical; 21°C - 25°C (Ref. 27115); 44°N - 7°N, 98°W - 59°W (Ref. 87362)
Northwest to West Central Atlantic: from Massachusetts and Bermuda to Trinidad and Tobago, including the Gulf of Mexico and the islands of the Caribbean.
Panjang pada saat jatuh tempo pertama / Ukuran / Berat / umur
Kematangan: Lm 15.5, range 9 - ? cm
Max length : 38.1 cm SL jantan/; (Ref. 9761); common length : 25.0 cm TL jantan/; (Ref. 3142); Umur maksimum dilaporkan: 31 Tahun (Ref. 52229)
Duri punggung (Keseluruhan (total)) : 9; duri punggung lunak (Keseluruhan (total)) : 23 - 26; Duri dubur: 3; Sirip dubur lunak: 21 - 23. This species is distinguished by the following set of characters: D IX, 23-26; A III, 21-23; pectoral rays 15-17; gill rakers 18-24; covered with very small ctenoid scales; spatulate teeth have denticulate edges, upper jaw with 14, lower jaw 16; body depth about 2.0 in standard length; caudal fin lunate, concavity of caudal fin 5.0-12.0 in SL, more concave in adults; length of caudal spine 3.0-3.5 in SL; eye diameter 3.0-3.5 in head length; colour of body yellowish to grayish brown, without dark vertical bars; yellow lines radiating from the posterior margin of eye; translucent pectoral fin with yellow tints; white or pale spot at the base of caudal fin; posterior margin of caudal, anal and dorsal fins have light blue or white margin (Ref. 87362)..
Body shape (shape guide): short and / or deep; Cross section: compressed.
Inhabits shallow bottoms with coral or rocky formations (Ref. 13628); also found around inshore rocky areas with patches of sand, feeding primarily on benthic algae and occasionally grazing on seagrass beds (Ref. 87362). Usually occurs in groups of five or more individuals. Mainly diurnal species. The spine on both sides of the caudal peduncle may inflict painful wounds (Ref. 5217). Marketed fresh. Minimum depth reported from Ref. 27115. Previously reported longevity of 31 years from Ref. 52229 refers to Acanthurus bahianus, a case of misidentification.
Bernal, M.A. and L.A. Rocha, 2011. Acanthurus tractus Poey, 1860, a valid western Atlantic species of surgeonfish (Teleostei, Acanthuridae), distinct from Acanthurus bahianus Castelnau, 1855. Zootaxa 2905:63-68. (Ref. 87362)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Traumatogenic (Ref. 5217)
penggunaan manusia
Perikanan: nilai komersial kecil; Akuarium: Komersial; umpan: occasionally
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01905 (0.01222 - 0.02972), b=2.92 (2.79 - 3.05), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Tingkat Trofik (Acuan 69278) |
2.0 ±0.0 se; based on diet studies. |
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Generation time |
2.9 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Daya lenting (Acuan 120179) |
sangat rendah, Waktu penggandaan populasi minimum lebih dari 14 tahun (K=0.3-1.5; tmax=31). |
Kerentanan Penangkapan Ikan (Ref. 59153) |
Low to moderate vulnerability (32 of 100). 🛈 |
kategori harga (Ref. 80766) |
Medium.
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Nutrisi (Ref. 124155) |
Calcium = 68.2 [28.9, 210.9] mg/100g; Iron = 0.941 [0.346, 2.417] mg/100g; Protein = 18.4 [17.1, 19.6] %; Omega3 = 0.104 [0.046, 0.227] g/100g; Selenium = 25.2 [8.4, 78.0] μg/100g; VitaminA = 20.9 [4.8, 91.9] μg/100g; Zinc = 2.8 [0.9, 5.2] mg/100g (wet weight); |