分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
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Percopsiformes (Trout-perches, pirate perches and cavefishes) >
Percopsidae (Trout-perches)
Etymology: Percopsis: Greek, perke = perch + Greek, opsis = appearance (Ref. 45335); omiscomaycus: omiscomaycus which is probably an Algonkian Indian name that includes the root 'trout' (Ref. 1998).
More on author: Walbaum.
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; potamodromous (Ref. 126106); 深さの範囲 10 - 61 m (Ref. 27547). Temperate; 68°N - 37°N
North America: Atlantic and Arctic basins throughout most of Canada, and south to Potomac River drainage in Virginia, USA; Yukon River drainage in Yukon Territory and Alaska; Great Lakes and Mississippi River basins south to West Virginia, Kentucky, Illinois, Missouri, North Dakota and Montana in the USA.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 11.4, range 8 - 15.4 cm
Max length : 20.0 cm TL オス/雌雄の選別がない; (Ref. 5723); common length : 8.8 cm TL オス/雌雄の選別がない; (Ref. 12193); 最大記録サイズ: 4 年 (Ref. 10348)
背面の脊椎 (合計) : 1 - 3; 背鰭 (合計) : 9 - 11; 肛門の骨: 1; 臀鰭: 5 - 9; 脊つい: 33 - 36. Distinguished by the presence of an adipose fin; small weak spines in the dorsal and anal spines; rough ctenoid scales; and pectoral fins reaching well behind the bases of pelvic fins (Ref. 27547). Gill rakers short, stubby mounds with small teeth; lateral line nearly straight (Ref. 27547). Pale yellowish to silvery, often almost transparent; with a row of about 10 dark spots along midline of back, 10 or 11 spots along lateral line, and another row of spots high on sides above lateral line; fins transparent (Ref. 27547).
Body shape (shape guide): elongated.
Adults occur in lakes, deep flowing pools of creeks, and rivers (Ref. 5723). Usually found over sand (Ref. 5723). They move into the shallows of lakes at night to feed and moves back to deeper water as dawn approaches (Ref. 1998). They feed on insect larvae, amphipods and fishes (Ref. 1998). Important forage fish (Ref. 1998).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Spawning adults move inshore to shallow water or into shallow tributaries of lakes (Ref. 10348). Two or more males cluster with a single female near the surface. They press close to the female, often breaking the surface of the water, and eggs and milt are released (Ref. 27547). Some populations spawn exclusively at night (Ref. 10348), but others show no variation from daytime spawning (Ref. 10349). There is often, perhaps usually, heavy postspawning mortality (Ref. 27547).
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)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 興味がない; 水族館・水槽: 公共の水族館; 餌: occasionally
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 = 1.0002 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00575 (0.00244 - 0.01356), b=3.12 (2.90 - 3.34), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
栄養段階 (参照 69278) |
3.4 ±0.51 se; based on food items. |
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=2-3; tmax=4). |
漁業の脆弱性 (Ref. 59153) |
Low to moderate vulnerability (30 of 100). 🛈 |