分類 / Names
共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
(Scorpionfishes and flatheads) > Cottidae
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); bairdii: Named after Spencer Fullerton Baird, first U.S. Fish Commissioner. More on author: Girard.
Environment: milieu / climate zone / depth range / distribution range
; 新鮮な水 底生の; 深さの範囲 ? - 16 m (Ref. 1998). Temperate; 59°N - 34°N
North America: widespread with highly disjunct distribution in Canada and USA. The former Blue Ridge race of the Atlantic slope of the Appalachian Mountains is now recognized as a distinct species Cottus caeruleomentum.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL オス/雌雄の選別がない; (Ref. 5723); common length : 8.4 cm TL オス/雌雄の選別がない; (Ref. 12193); 最大記録サイズ: 2.00 年 (Ref. 12193)
Adults occur in rubble and gravel riffles, less often in sand-gravel runs of headwaters, creeks and small rivers. Also found in springs and their effluents and rocky shores of lakes (Ref. 1998, 10294). Feed mainly on aquatic insect larvae, but also on crustaceans, annelids, fishes, fish eggs, and plant material (Ref. 1998, 10294). Spawn in the spring (Ref. 1998). A male guards the cluster of eggs laid by different females (Ref. 1998). Neither anterolateral glandular groove nor venom gland is present (Ref. 57406).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Male selects a nesting site under a rock of ledge. Male entices a female to enter the nest. Female deposits eggs on the upper surface of the rock and leaves or is driven out of the nest. Eggs are deposited by different females. The male guards the eggs from predators and maintains a natural current flow (Ref. 1998). Also Ref. 53335.
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 (Ref. 118484)
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00309 - 0.01700), b=3.13 (2.92 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
栄養段階 (Ref. 69278
): 3.3 ±0.46 se; based on food items.
回復力 (Ref. 120179
): 高い, １５か月以下の倍増期間の最小個体群 (tmax=2).
弱み (Ref. 59153
): Low to moderate vulnerability (34 of 100) .