分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
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Siluriformes (Catfishes) >
Ariidae (Sea catfishes) > Ariinae
Etymology: Potamarius: Greek, potamos = river (Ref. 45335); usumacintae: The specific name refers to the Río Usumacinta basin, where this species occurs.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の. Tropical
Central America: endemic to the Río Usumacinta basin in Guatemala and Mexico.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 59.5 cm SL オス/雌雄の選別がない; (Ref. 75770)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 1; 背鰭 (合計) : 7; 臀鰭: 19 - 23. Distinguished from other freshwater ariids occurring in Mesoamerica by the following combination of characters: presence of accessory tooth patches on palate; premaxillary tooth band length 2.4-2.9 in its width; ; snout length 1.4-1.8 in postorbital length; lateral gill rakers on first gill arch 17-20 (mode 19); mesial gill rakers on first two gill arches well developed; accessory palatal patches with numerous pointed-conical teeth; premaxillary maxillary barbel not extending behind gill membrane; and dorsomedian fleshy groove on head absent (Ref. 75770).
Adults occur only in freshwater, preferring the main channel of medium to large rivers (Ref. 75770). Migratory behaviour is undetermined (Ref. 126106).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Betancur-R., R. and P.W. Willink, 2007. A new freshwater ariid (Otophysi: Siluriformes) from the Río Usumacinta Basin. Copeia 2007(4):818-828. (Ref. 75770)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間に対する脅威
Traumatogenic (Ref. 58010)
人間の用途
用具
特記事項
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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 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00468 (0.00244 - 0.00896), b=3.13 (2.96 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
3.7 ±0.4 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) |
Moderate to high vulnerability (51 of 100). 🛈 |