分類 / 名前
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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Gymnogobius: Greek, gymnos = naked + Latin, gobius = gudgeon (Ref. 45335).
More on author: Tanaka.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 外洋の; 移住性ではない. Temperate
Asia: endemic to Lake Biwa, Japan. Introduced to Lakes Kasumigaura and Sagami.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 7.0 cm SL オス/雌雄の選別がない; (Ref. 43239)
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.
Body shape (shape guide): fusiform / normal.
Inhabit offshore areas in the lake almost throughout the year (Ref. 76915). Spawn in spring (Ref. 76915). Semelparous (Ref. 76911). Males care for the eggs in nest (Ref. 76913). Caught for food (Ref. 559).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Semelparous, dies after breeding (Ref. 76911). Migrate to the shore to spawn under stones in spring (Ref. 76915). Males have only two brood cycles, mating with the same female during each breeding cycle (Ref. 76915).
Nakabo, T., 2002. Fishes of Japan with pictorial keys to the species, English edition II. Tokai University Press, Japan, pp 867-1749. (Ref. 43239)
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)); Date assessed: 07 December 2017
人間の用途
水産業: 少数商業の
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00813 (0.00713 - 0.00926), b=3.09 (3.05 - 3.13), in cm total length, based on LWR estimates for this species (Ref. 93245). |
栄養段階 (参照 69278) |
3.1 ±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 (16 of 100). 🛈 |
価格帯 (Ref. 80766) |
Very high.
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