分類 / 名前
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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Sicydiinae
Etymology: Sicydium: Greek, sika, sikya = cucumber ; diminutive (Ref. 45335); adelum: From the greek adelos meaning unseen, unknown, obscure, in reference to its similar appearance to the syntopic S. altum.
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; 22°C - 31°C (Ref. 36880)
Central America: Atlantic slope of Costa Rica: Parismina drainage southward to Sixaloa drainage.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 14.0 cm SL オス/雌雄の選別がない; (Ref. 36880)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 7; 背鰭 (合計) : 10; 肛門の骨: 1; 臀鰭: 10; 脊つい: 26. Premaxillary teeth tricuspid without overlying papillae, lateral cusps much longer than median cusp; enameloid crown short; 61-78 teeth on each premaxilla; mouth narrow; longitudinal scales 61-68; transverse scales 20-23.
Body shape (shape guide): fusiform / normal; Cross section: circular.
Inhabits creeks and rivers between sea level and 1180 m elevation, usually present in rapids or riffles of high current velocity. Always stuck to rocks or hidden between stones. Ingests great quantities of mud, diatoms and filamentous algae that it scrapes from the substratum (Ref. 36880).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Bussing, W.A., 1996. Sicydium adelum, a new species of gobiid fish (Pisces: Gobiidae) from atlantic slope streams of Costa Rica. Revista de Biologia Tropical 44(2):819-825. (Ref. 38402)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
絶滅危惧 (EN) (B1ab(iii,v)); Date assessed: 28 February 2020
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=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
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0 |
回復力 (参照 120179) |
高い, 15か月以下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 (29 of 100). 🛈 |