| Thoburnia rhothoeca | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Family: | Catostomidae |
| Genus: | Thoburnia |
| Species: | T. rhothoeca |
| Binomial name | |
| Thoburnia rhothoeca (Thoburn, 1896 ) | |
| Synonyms | |
Catostomus rhothoecusThoburn, 1896 | |
Thoburnia rhothoeca (common name torrent sucker) is a species of fish native to Virginia and West Virginia. [1]
Thoburnia rhothoeca has a small mouth with lower lip edges that are nearly triangular. [2] The sucker has a small black skull and two air-bladders, although the air-bladders are reduced in size. The fish is small in size, and generally does not exceed seven inches. The fish exhibits sexual dimorphism, and its appearance varies depending on gender. [3]
The male sucker has a narrow red lateral band on it and a long dorsal and ventral fin. The female sucker has a narrow brown lateral band on it, and a shorter dorsal and ventral fin. [3]
The habitat of the sucker extends from Northern Virginia to Eastern West Virginia. It is generally found in the James River and its discharges, although populations also exist in the Potomac River and its discharges. [1]
The fish is generally found in creeks and small rivers. It prefers clear waters with a rocky gradient and can live in waters with temperatures ranging from warm to cold. Younger Thoburnia rhothoeca can generally be found in smaller pools. [1]
Thoburnia rhothoeca reach sexual maturity after one to two years of life. The sucker reproduces through spawning, which generally occurs from February to May. Female suckers lay an average of approximately 780 oocytes during spawning season with an average diameter of approximately two millimeters. [4]
The sucker is primarily a carnivore. Most of its diet consists of Chironomidae, although it will consume many other of species of insects when they are available. The sucker will also consume detritus. [4]
The sucker is ranked as least concern by the International Union for Conservation of Nature. Reasons for the rating include the stable population and the large range of the sucker. [1]
The golden redhorse is a species of freshwater fish endemic to Ontario and Manitoba in Canada and the Midwestern, southern, and eastern United States. It lives in calm, often silty or sandy waters in streams, small to large rivers, and lakes.
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The Potomac sculpin is a freshwater species of sculpin that lives in West Virginia, Maryland, Virginia and Pennsylvania.
The bigmouth chub is a species of fish native to West Virginia.
Percina roanoka, the Roanoke darter, is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is native to Virginia and North Carolina in the United States and is present in West Virginia, possibly from introduction. It is found in the Roanoke, Tar, and Neuse river systems, typically in small to medium size rivers. It is a colorful species with an average length of 4.3 centimeters (1.7 in). It feeds on insect larvae and other small invertebrates, and spawns in late May and June. It is a common fish with a very wide range and the International Union for Conservation of Nature has classified its conservation status as being of "least concern".
The ribbon shiner is a species of freshwater fish of the cyprinid genus Lythrurus and is native to the United States.
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Sepia orbignyana, the pink cuttlefish, is a species of small cuttlefish from the family Sepiidae. It is occurs in the temperate and tropical waters of the eastern Atlantic Ocean.
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