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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
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
Ecología
; agua dulce demersal; rango de profundidad ? - 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.
Tamaño / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 15.0 cm TL macho / no sexado; (Ref. 5723); common length : 8.4 cm TL macho / no sexado; (Ref. 12193); edad máxima reportada: 2.00 años (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
Maturities | Reproducción | Spawnings | Egg(s) | Fecundities | Larva
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00300 - 0.01523), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nivel trófico (Ref.
69278): 3.3 ±0.46 se; based on food items.
Resiliencia (Ref.
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (tmax=2).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
