The thicktail chub (Gila crassicauda) was a type of minnow that inhabited the lowlands and weedy backwaters of the Sacramento and San Joaquin Rivers in the Central Valley of California. It was once abundant in lowland lakes, marshes, ponds, slow-moving stretches of river,[2] and, during years of heavy run-off, the surface waters of San Francisco Bay.[2] The thicktail chub was one of the most common fish in California.[2] Within Native American middens it represented 40% of the fish.[3]
The chub was a favored food of the indigenous peoples of Clear Lake and the Central Valley before being heavily exploited by commercial fishermen supplying the San Francisco market.[2] A heavy-bodied fish with a thick tail and a small, cone-shaped head, the backs of the thicktail chub ranged in color from greenish brown to purplish black, while the sides and belly were yellow. It could reach a length of nearly ten inches. Although little is known about its behavior, it was probably carnivorous, feeding on small fish and invertebrates.
The primary cause of the thicktailed chub's extinction was the conversion of much of the Central Valley to agricultural use. Most of its habitat was destroyed by the drainage of sloughs and marshes, dam-building, and water diversion for irrigation. All this resulted in the loss of the sluggish water the species preferred. Competition from exotic species also contributed to its extinction. The last known example was caught on April 16, 1957.[2]
Referencesedit
^NatureServe (2013). "Gila crassicauda". IUCN Red List of Threatened Species. 2013: e.T9183A18229941. doi:10.2305/IUCN.UK.2013-1.RLTS.T9183A18229941.en. Retrieved 19 November 2021.
^ abcdeMiller, Robert R.; Williams, James D.; Williams, Jack E. (1989). "Extinctions of North American Fishes During the past Century" (PDF). Fisheries. 14 (6): 22–38. doi:10.1577/1548-8446(1989)014<0022:EONAFD>2.0.CO;2. hdl:2027.42/141989.
^Schulz, P.D. (1979). "Fish remains from a historic central California Indian village". Calif. Fish Game. 65: 273–276.
January 01, 1970
thicktail, chub, thicktail, chub, gila, crassicauda, type, minnow, that, inhabited, lowlands, weedy, backwaters, sacramento, joaquin, rivers, central, valley, california, once, abundant, lowland, lakes, marshes, ponds, slow, moving, stretches, river, during, y. The thicktail chub Gila crassicauda was a type of minnow that inhabited the lowlands and weedy backwaters of the Sacramento and San Joaquin Rivers in the Central Valley of California It was once abundant in lowland lakes marshes ponds slow moving stretches of river 2 and during years of heavy run off the surface waters of San Francisco Bay 2 The thicktail chub was one of the most common fish in California 2 Within Native American middens it represented 40 of the fish 3 Thicktail chub Conservation status Extinct 1950s IUCN 3 1 1 Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Actinopterygii Order Cypriniformes Family Cyprinidae Genus Gila Species G crassicauda Binomial name Gila crassicauda S F Baird amp Girard in Girard 1854 The chub was a favored food of the indigenous peoples of Clear Lake and the Central Valley before being heavily exploited by commercial fishermen supplying the San Francisco market 2 A heavy bodied fish with a thick tail and a small cone shaped head the backs of the thicktail chub ranged in color from greenish brown to purplish black while the sides and belly were yellow It could reach a length of nearly ten inches Although little is known about its behavior it was probably carnivorous feeding on small fish and invertebrates The primary cause of the thicktailed chub s extinction was the conversion of much of the Central Valley to agricultural use Most of its habitat was destroyed by the drainage of sloughs and marshes dam building and water diversion for irrigation All this resulted in the loss of the sluggish water the species preferred Competition from exotic species also contributed to its extinction The last known example was caught on April 16 1957 2 References edit NatureServe 2013 Gila crassicauda IUCN Red List of Threatened Species 2013 e T9183A18229941 doi 10 2305 IUCN UK 2013 1 RLTS T9183A18229941 en Retrieved 19 November 2021 a b c d e Miller Robert R Williams James D Williams Jack E 1989 Extinctions of North American Fishes During the past Century PDF Fisheries 14 6 22 38 doi 10 1577 1548 8446 1989 014 lt 0022 EONAFD gt 2 0 CO 2 hdl 2027 42 141989 Schulz P D 1979 Fish remains from a historic central California Indian village Calif Fish Game 65 273 276 Retrieved from https en wikipedia org w index php title Thicktail chub amp oldid 1214262362, wikipedia, wiki, book, books, library,
