Least Chub

Least Chub

Taxobox
name = Least Chub
status = VU | status_system = IUCN2.3
regnum = Animalia
phylum = Chordata
classis = Actinopterygii
ordo = Cypriniformes
familia = Cyprinidae
genus = "Iotichthys"
species = "I. phlegethontis"
binomial = "Iotichthys phlegethontis"
binomial_authority = (Cope, 1874)
synonyms =
The Least Chub ("Iotichthys phlegethontis") is a species of ray-finned fish in the Cyprinidae family, the only member of the genus "Iotichthys".It is found only in the United States. It's native habitat formerly included much of the Bonneville Basin and it was widely distributed in freshwater ponds, swamps, springs, and tributaries around the Great Salt Lake, Utah Lake, and Sevier Lake. Populations were also abundant in springs within the Snake and Utah valleys. Due to habitat degredation and introduction of non-native fishes, it is currently limited to a few spring complexes. The least chub is a small minnow, with a maximum size of less than 2.5 inches. It is the smallest of seven chubs native to Utah. Least chub eat primarily algae and small invertebrates, including mosquito larvae.Spawning occurs during the spring and early summer. Eggs are fertilized in the water, and then sink until they attach to vegetation or the substrate. No parental care is given to eggs or young. The least chub is a schooling species that prefers areas of dense vegetation in slow-moving water.The Least Chub populations suffered a steep decline in the 1940's and 50's, though the decline wasn't noticed until the 70's. Reasons for the decline include habitat destruction from cattle grazing on and trampling streamside vegatation, water diversion, mineral and energy development, and non-native fishes. Studies indicate that where non-native fishes such as largemouth bass, trout, and mosquitofish are introduced, few if any least chub remain. Though the distribution of the Least Chub is still limited, the Utah Division of Wildlife Resources and other conservation groups have reintroduced the fish into suitable habitats, often removing non-native fish prior to stocking. Other conservation efforts include working with ranchers to fence off critical spring complexes to prevent habitat destruction from cattle grazing. Recently the Utah Division of Wildlife Resources teamed up with mosquito abatement districts in Davis and Salt Lake counties (Utah) to distribute the fish to 240 backyard ponds to evaluate it as a potential mosquitofish replacement. Researchers will monitor how well the chub compete against the more aggressive mosquitofish in ponds where they are both stocked. Ponds with only the lest chub will be monitored to determine whether they can control mosquito larvae as effectively as the mosquitofish or if more chubs will be required to do the same job.

ource

* Gimenez Dixon, M. 1996. [http://www.iucnredlist.org/search/details.php/10847/all Iotichthys phlegethontis] . [http://www.iucnredlist.org 2006 IUCN Red List of Threatened Species. ] Downloaded on 19 July 2007.

* Muck, J. 1999. Endangered Species Bulletin September/October 1999. [http://www.nativefish.org/articles/least.php] Downloaded 3, June 2008.

*Dougherty, Joseph M. 2008. "Least-likely aquatic champion to take on top mosquito-eater" "Deseret News" Feb 3, 2008. Downloaded 3 June 2008.


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • least chub — amerikinis strepetys statusas T sritis zoologija | vardynas taksono rangas rūšis atitikmenys: lot. Iotichthys phlegethontis angl. least chub rus. американский елец ryšiai: platesnis terminas – amerikiniai strepečiai …   Žuvų pavadinimų žodynas

  • Chub — may refer to: Contents 1 Fishes 1.1 In family Cyprinidae 1.2 In other families 2 Other uses 2.1 …   Wikipedia

  • Cyprinidae — Cyprinids Temporal range: Eocene Present …   Wikipedia

  • Iotichthys phlegethontis —   Iotichthys phlegethontis …   Wikipedia Español

  • Iotichthys phlegethontis — amerikinis strepetys statusas T sritis zoologija | vardynas taksono rangas rūšis atitikmenys: lot. Iotichthys phlegethontis angl. least chub rus. американский елец ryšiai: platesnis terminas – amerikiniai strepečiai …   Žuvų pavadinimų žodynas

  • amerikinis strepetys — statusas T sritis zoologija | vardynas taksono rangas rūšis atitikmenys: lot. Iotichthys phlegethontis angl. least chub rus. американский елец ryšiai: platesnis terminas – amerikiniai strepečiai …   Žuvų pavadinimų žodynas

  • американский елец — amerikinis strepetys statusas T sritis zoologija | vardynas taksono rangas rūšis atitikmenys: lot. Iotichthys phlegethontis angl. least chub rus. американский елец ryšiai: platesnis terminas – amerikiniai strepečiai …   Žuvų pavadinimų žodynas

  • Agriculture and Food Supplies — ▪ 2007 Introduction Bird flu reached Europe and Africa, and concerns over BSE continued to disrupt trade in beef. An international vault for seeds was under construction on an Arctic island. Stocks of important food fish species were reported… …   Universalium

  • Christmas Eve (opera) — Operas by Nikolai Rimsky Korsakov The Maid of Pskov (1872) May Night (1879) The Snow Maiden (1881) Mlada (1890) Christmas Eve (1895) Sadko (1896) Mozart and Salieri (1897) The Noblewoman Vera Sheloga (1898) …   Wikipedia

  • Fish of Oklahoma — There are several types of freshwater fish in Oklahoma. Oklahoma is surrounded by land so there are no saltwater fish. Oklahoma is one of the five states that allows noodling, and one of the only three that allows alligator gar fishing… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”