分類 / 名前
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Eupercaria/misc (Various families in series Eupercaria) >
Lutjanidae (Snappers) > Lutjaninae
Etymology: Lutjanus: Malay, ikan lutjan, name of a fish; arakan: Named after the historical Arakan coast along the eastern Bay of Bengal, where it is currently known; noun in apposition.
Taxonomic Remarks
Previously misidentified as Lutjanus lemniscatus (non Valenciennes, 1828) and Lutjanus guilcheri (non Fourmanoir, 1959).
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 関連する礁; 深さの範囲 3 - 20 m (Ref. 138536). Tropical
Bay of Bengal.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 36.0 cm SL オス/雌雄の選別がない; (Ref. 138536); 最大公表体重: 1.5 kg (Ref. 138536)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 10; 背鰭 (合計) : 13 - 14; 肛門の骨: 3; 臀鰭: 8. This species is distinguished by the following set of characters: D X, 14 (13-14); A III, 8; body depth 2.4-2.8 in SL; eye 3.7-4.8 in HL; interorbital 5.6-7.4 in HL; scale rows above lateral line rising obliquely toward dorsal profile; predorsal scales extend forward to middle of interorbital; preopercular notch and interopercular knob are weakly developed; vomer with narrow, crescentic, V-shaped patch of granular teeth without a medial posterior extension; caudal fin slightly emarginate. Colouration when fresh or in life reddish brown, grey-brown, or olive-brown on head, back, and upper sides; the lower sides and belly reddish brown or silvery pink in adults and brownish white in juveniles; dorsal, caudal, anal, and pelvic fins are reddish brown, with a black spot at base of uppermost pectoral-fin rays; two dark-brown stripes on the upper half of lateral body, first from upper end of operculum to posterior end of soft-dorsal-fin base, continuing to upper caudal-fin base and the second stripe from behind upper middle operculum straight to mid-base of caudal fin, preceded by a squarish dark blotch on upper operculum (Ref. 138536).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Inhabits coral-associated rocky reefs, mostly at about 3-20 m depth from where it is mostly fished. Juveniles often found in shallower waters, in less than 5 m. It is not known to occur in estuarine areas or in soft bottom trawling grounds. This species is the most frequently caught snapper (lutjanid), regularly seen in hand-line catches and occasionally in bottom-set gill net catches around Zinjira Island, Bangladesh. Associated species in catches are Lutjanus indicus, L. johnii, L. lunulatus, Lethrinus sp., Paranibea semiluctuosa, and Pomadasys guoraca, among others (Ref. 138536).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Hasan, M.E., J.-D. Durand and Y. Iwatsuki, 2025. Lutjanus arakan, a new species of snapper (Teleostei:
Lutjanidae) from the Bay of Bengal, Bangladesh, previously confused with L. lemniscatus. J. Ocean Sci. Found., 45:7-35. (Ref. 138536)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照 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=0.01479 (0.00706 - 0.03101), b=2.96 (2.80 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
3.9 ±0.7 se; based on size and trophs of closest relatives |
回復力 (参照 120179) |
手段, 1.4年~4.4年の倍増期間の最小個体群 (Preliminary K or Fecundity.). |
漁業の脆弱性 (Ref. 59153) |
Low to moderate vulnerability (34 of 100). 🛈 |