Environment: milieu / climate zone / 深さの範囲 / distribution range
生態学
海; 新鮮な水; 汽水性の 底生の; 両側回遊性 (Ref. 46888). Tropical; 22°C - 29°C (Ref. 36880); 33°N - 5°S, 98°W - 35°W (Ref. 117424)
Western Central Atlantic: Southern Florida and southern Texas in USA to eastern Brazil. Eastern Central Atlantic: Macias Nguema (Fernando Po).
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 90.0 cm TL オス/雌雄の選別がない; (Ref. 11344); common length : 36.0 cm TL オス/雌雄の選別がない; (Ref. 12193); 最大公表体重: 7.5 kg (Ref. 11344)
背面の脊椎 (合計) : 7; 背鰭 (合計) : 9; 肛門の骨: 1; 臀鰭: 9.
Body shape (shape guide): fusiform / normal.
Adults occur in fresh water, often well inland. Found over sand streams, usually in current near cover (Ref. 86798). Inhabits larger free flowing clear water streams (Ref. 11225). They lie mostly on the bottom in slower moving part of streams, sometimes on logs or large stones and on leaf debris or gravel (Ref. 11225). A carnivorous and benthic fish that relies on its sluggish behavior and cryptic coloration (Ref. 36880). Feeds on all greater invertebrates and regularly also fish (Ref. 92840).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
水産業: 潜在的興味の
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (参照
123201): 26.4 - 28.3, mean 27.5 °C (based on 395 cells).
Phylogenetic diversity index (参照
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00434 - 0.01667), b=3.04 (2.86 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
栄養段階 (参照
69278): 3.6 ±0.57 se; based on food items.
回復力 (参照
120179): 非常に低い, １４年以上の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High vulnerability (56 of 100).
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