分類 / Names
共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
; 海; 汽水性の 関連する礁; 深さの範囲 0 - 53 m (Ref. 13608), usually ? - 4 m (Ref. 55205). Subtropical; 36°N - 4°S, 100°W - 37°W (Ref. 55205)
Western Atlantic: New Jersey, USA and northern Gulf of Mexico to southern Brazil, including the Antilles (Ref. 3168).
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 85.0, range 75 - 80 cm
Max length : 200 cm WD オス/雌雄の選別がない; (Ref. 3168); common length : 90.0 cm WD オス/雌雄の選別がない; (Ref. 3168); 最大公表体重: 135.6 kg (Ref. 40637); 最大記録サイズ: 28 年 (Ref. 53968)
Disk has sharp outer corners and irregular row of short spines on upper surface (Ref. 26938). Disk usually uniform dark brown above, grayer in young. Ventral finfold on tail long and high, dorsal finfold absent (Ref. 7251). Upper surface of disc gray, dark or olivaceous brown or olive green. Lower surface of disc white or whitish with an edging of gray or brown (Ref. 6902).
Found on sandy bottoms, seagrass beds, lagoons and the reef face (Ref. 12951). Common in bays and estuaries (Ref. 7251). Observed singly, in pairs and in aggregations (Ref. 12951). Buries in the sand during the day and forages at night, usually in seagrass beds (Ref. 12951). Feeds mainly on bivalves and worms and also takes shrimps, crabs and small fishes (Ref. 3168). Feeds by creating depressions in the sand to expose invertebrates and small fishes (Ref. 9710). Ovoviviparous, with 3-4 in a litter (Ref. 12951). May be found in cleaning stations where they are attended to by the bluehead wrasse and Spanish hogfish (Ref. 12951). Equipped with a well-developed serrated spine and capable of inflicting a painful laceration. Easily approached by divers (Ref. 9710).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205). Male mounts on female dorsally (Ref. 12951).
Last, P.R., W.T. White, M.R. de Carvalho, B. Séret, M.F.W. Stehmann and G.J.P. Naylor, 2016. Rays of the world. CSIRO Publishing, Comstock Publishing Associates. i-ix + 1-790. (Ref. 114953)
CITES (Ref. 118484)
Traumatogenic (Ref. 4690)
水産業: 商業; ゲームフィッシュ: はい
Estimates based on models
Preferred temperature (Ref. 115969
): 23.7 - 28.1, mean 27.3 (based on 795 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
栄養段階 (Ref. 69278
): 3.5 ±0.0 se; Based on diet studies.
回復力 (Ref. 120179
): 低い, ４．５年～１４年の倍増期間の最小個体群 (tmax=28; Fec=3-4).
弱み (Ref. 59153
): Very high vulnerability (77 of 100) .