分類 / 名前
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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Eviota: No etymology given, suggested by Christopher Scharpt: from Latin 'eu' for 'true' and 'iota' for anything very small, in combination 'truly very small' referring to it as being the smallest vertebrate at the time it has benn described by Jenkins (thus, making the suggestion by Scharpt plausible; occasa: Name from Latin 'occaus' meaning sunset, referring to the distinctive yellow-orange broad wedge-shaped bar at the caudal-fin base on a red body; noun in apposition.
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 14 - 20 m (Ref. 94952). Subtropical
Western Pacific: Palau and Japan.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 1.0 cm SL オス/雌雄の選別がない; (Ref. 94952)
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) : 8; 肛門の骨: 1; 臀鰭: 8. This species is distinguished by the following characters: lacks all cephalic sensory-canal pores; dorsal/anal fin-ray formula 8/8; some pectoral-fin rays are branched; rudimentary or no fifth pelvic-fin ray; 5 branches in fourth pelvic-fin ray; D1 crossed by two dark bands separated by a diagonal light band, a distinct dark spot on caudal peduncle anterior to caudal fin, followed by a pale bar and a yellow-orange broad wedge-shaped bar at caudal-fin base (Ref. 94952).
Cross section: oval.
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Greenfield, D.W., R. Winterbottom and T. Suzuki, 2014. Eviota occasa, a new species of dwarfgoby from Palau and the Ryukyu Islands, Japan. (Teleostei: Gobiidae). J. Ocean Sci. Found. 10:11-19. (Ref. 94952)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
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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=0.00692 (0.00283 - 0.01691), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
2.9 ±0.3 se; based on size and trophs of closest relatives |
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 vulnerability (10 of 100). 🛈 |