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> Perciformes/Cottoidei (Sculpins) > Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335).
More on author: Linnaeus.
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335).
More on author: Linnaeus.
Taxonomic Remarks
Junior synonym Cottus jaxartensis is a valid species according to Sideleva, 2021 (Ref. 129291) and Cottus nudus is a primary homonyn and permanently invalid (include in Ref. 129291 Quote).
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
; 新鮮な水; 汽水性の 底生の; pH range: 7.0 - 7.5; dH range: 10 - ?; potamodromous (Ref. 51243); 深さの範囲 2 - 2 m (Ref. 58018). Subtropical; 1°C - 16°C (Ref. 45166); 70°N - 40°N, 6°W - 60°E
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
Europe: North Baltic in Scandinavia south to stream Maurine in southwesternmost of corner of Baltic basin (Germany); lower reaches of streams and rivers and along coast of Sweden, Finland, Russia southwest to Estonia; Danube (except upper tributaries Save and Arges), Elbe, Ems, Weser and Rhône drainages; tributaries of upper Rhine downriver (northward) to about Mannheim; a few of uppermost tributaries of River Tevere, central Italy; Adriatic drainages from Potenza in Italy to Zrmanja in Croatia, except Timavo spring. Locally introduced in Scheldt drainage in Belgium.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 4.2 range ? - ? cm
Max length : 18.0 cm TL オス/雌雄の選別がない; (Ref. 556); common length : 10.0 cm TL オス/雌雄の選別がない; (Ref. 556); 最大記録サイズ: 10 年 (Ref. 74370)
Max length : 18.0 cm TL オス/雌雄の選別がない; (Ref. 556); common length : 10.0 cm TL オス/雌雄の選別がない; (Ref. 556); 最大記録サイズ: 10 年 (Ref. 74370)
簡単な記述 検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 6 - 8; 背鰭 (合計) : 15 - 18; 肛門の骨: 0; 臀鰭: 10 - 13; 脊つい: 31 - 34. Caudal fin with 13 to 14 rays (Ref. 40476).
Body shape (shape guide): fusiform / normal.
Body shape (shape guide): fusiform / normal.
Occurs in cold, clear and fast-flowing water of small stream to medium-sized rivers as well as on gravel or rocky shores of cold lakes and in slightly brackish waters along eastern coast of Baltic coast (Ref. 59043). Feeds on small bottom invertebrates, mainly insects, crustaceans. Pink to yellow eggs are found in clumps attached to undersides of large stones (Ref. 41678). Contrary to statements in older literature, eggs and larvae of fishes are not a common food item (Ref. 45167).
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Spawns once a year for several years in low productivity streams, but exhibits multiple spawning within a season in high productivity environments (Ref. 40290, 40754). Male protects several batches of eggs--deposited below a stone--for about 3 weeks. Larvae are not guarded and may occasionally been eaten (Ref. 45166). Also Ref. 26506.
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター | 協力者
Freyhof, J., M. Kottelat and A. Nolte, 2005. Taxonomic diversity of European Cottus with description of eight new species (Teleostei: Cottidae). Ichthyol. Explor. Freshwat. 16(2):107-172. (Ref. 55856)
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
水産業: 興味がない; 餌: occasionally
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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]. |
| Bayesian length-weight | a=0.00871 (0.00582 - 0.01303), b=3.13 (3.01 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
|
栄養段階 (参照 69278) |
3.2 ±0.2 se; based on diet studies. |
|
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 (tm=1-3). |
|
漁業の脆弱性 (Ref. 59153) |
Low to moderate vulnerability (29 of 100). 🛈 |