Cottus cognatus Richardson, 1836
Slimy sculpin
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Cottus cognatus
画像によって Scarola, J.F.
画像 | グーグルの画像
画像によって Scarola, J.F.
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Perciformes/Cottoidei (Sculpins) > Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); cognatus: cognatus due to its relation to the European species C. gobio (Ref. 1998).
More on author: Richardson.
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); cognatus: cognatus due to its relation to the European species C. gobio (Ref. 1998).
More on author: Richardson.
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; 移住性ではない (Ref. 126106); 深さの範囲 6 - 128 m (Ref. 1998). Temperate; 4°C - 16°C (Ref. 13614); 71°N - 37°N
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
North America: throughout most of mainland Canada and Alaska; Atlantic Slope drainages south to Potomac River in Virginia, USA; St. Lawrence-Great Lakes basin; upper Mississippi River basin in Wisconsin, Minnesota and Iowa, USA; upper Columbia River drainage in Canada and USA. Also in Siberia, Russia.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 7.4 range ? - ? cm
Max length : 12.1 cm TL オス/雌雄の選別がない; (Ref. 27547); common length : 7.5 cm TL オス/雌雄の選別がない; (Ref. 27547); 最大記録サイズ: 7 年 (Ref. 28921)
Max length : 12.1 cm TL オス/雌雄の選別がない; (Ref. 27547); common length : 7.5 cm TL オス/雌雄の選別がない; (Ref. 27547); 最大記録サイズ: 7 年 (Ref. 28921)
簡単な記述 検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 7 - 10; 背鰭 (合計) : 14 - 19; 肛門の骨: 0; 臀鰭: 10 - 14; 脊つい: 31 - 35. Distinguished by the two pores on the chin and the short lateral line ending under the second dorsal fin (Ref. 27547). Gill rakers short and stubby, about 6 on first gill arch; lateral line incomplete, ending under middle of soft dorsal fin and usually having a few isolated pores behind this point; main portion with 12 to 26 pores (Ref. 27547). Pectorals large and fan-shaped, tips of lower rays projecting; fourth ray of pelvic much reduced; caudal rounded (Ref. 27547). Rather dark brown or green to dark gray on back and sides, whitish below, with vague, dark mottlings or bars below soft dorsal; belly sometimes with orange tints; soft dorsal, pectoral and caudal fins usually barred, pelvic fins and anal usually immaculate but sometimes barred; spiny dorsal dark at base, with a clear margin that may turn orange in breeding males; breeding males usually dark, sometimes black, all over (Ref. 27547).
Body shape (shape guide): elongated.
Body shape (shape guide): elongated.
Adults inhabit rocky riffles of cold streams, rocky areas of lakes (commonly at 90-106 m depth), springs and their effluents (Ref. 5723). They move into shallow water to spawn (Ref. 27547). In some areas, they are common in brackish water (Ref. 27843), presumably moving to and from fresh water, at least for spawning (Ref. 27547). They feed mostly on aquatic insect larvae and nymphs but also on crustaceans, small fishes, and plant materials (Ref. 1998). May be used as bait, but this seems rare (Ref. 27547).
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
The male chooses a nesting site under a rock or ledge. Spawning males are territorial toward other males (Ref. 27547). He attracts a female into the nesting site and after more courting the female deposits her adhesive eggs. The female is then driven out and the male guards the eggs until hatching occurs. The nest usually contains eggs from several females (Ref. 27547). The male has also been observed to guard the young (Ref. 1998).
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
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
水産業: 商業; 水族館・水槽: 公共の水族館
FAO - Publication: search | FishSource |
より多くの情報
解剖学
カマ
脳
オトリス
カマ
脳
オトリス
生理学
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性（LC50）
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性（LC50）
遺伝子の
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
用具
特記事項
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インターネットの情報源
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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=0.00832 (0.00340 - 0.02033), b=3.16 (2.98 - 3.34), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
|
栄養段階 (参照 69278) |
3.4 ±0.47 se; based on food items. |
| Generation time | 8.1 ( na - na) years. Estimated as median ln(3)/K based on 1 growth 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=2-4; tmax=7; Fec=42-1,420). |
|
漁業の脆弱性 (Ref. 59153) |
Moderate to high vulnerability (50 of 100). 🛈 |