Blue Ridge sculpin

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Blue Ridge sculpin
Blue Ridge sculpin - Cottus caeruleomentum.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Cottidae
Genus: Cottus
Species:
C. caeruleomentum
Binomial name
Cottus caeruleomentum
Kinziger, Raesly & Neely, 2000

The Blue Ridge sculpin (Cottus caeruleomentum) is a species of sculpin in the family Cottidae. It is native to the eastern United States, where it can be found in a number of river systems that drain into the Atlantic. [2] [3]

This fish is variable in morphology. [4] It is up to about 6.3 centimeters long. [2] In general, the species has dark saddle marks and an incomplete lateral line. There are small spines on the preoperculum and small prickles in the postpectoral area. [4] The breeding male, at least in some regions, has blue to blue-green coloration on the chin, the mouth, the bases of some of the fins, and the membrane connecting the bones around the gills. [5] The fish is very similar to its close relative, Cottus bairdi , particularly the subspecies C. b. bairdi. The latter has notches in the band marking the base of the tail; C. caeruleomentum lacks the notches on one or both sides. [4] C. bairdi lacks the blue breeding coloration; its chin is blackish. The two fish occur together and are known to hybridize. [5]

This fish is native to the states of Delaware, Maryland, North Carolina, Pennsylvania, Virginia, and West Virginia. It can be found in the Elk, Susquehanna, Bush, Patapsco, Patuxent, Potomac, Nanticoke, James, and Roanoke river drainages. The species is common in upland habitat, and less common in lowlands. It lives in creeks, springs, and riffles. In coastal areas it is only found in cold streams. [3]

The diet is made up of invertebrates. [3]

The parasite load of this species has been investigated. The nematode Rhabdochona cotti lives in its intestine. [6] Another nematode was found there and subsequently described as a new species named Freitascapillaria laticauda . It can be over a centimeter long. [7]

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<i>Cottus microstomus</i> Species of fish

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Prickly sculpin Species of fish

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<i>Cottus rondeleti</i> Species of fish

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The shorthead sculpin is a species of fish in the family Cottidae. It is found in the United States and Canada, inhabiting the Columbia River drainage in Washington, Oregon, Idaho, Montana, and British Columbia. It is also found in the Puget Sound drainage in Washington. It reaches a maximum length of 15.0 cm. It prefers rocky riffles of headwaters and creeks.

Riffle sculpin Species of fish

The riffle sculpin is a species of fish in the family Cottidae. It is found in the United States, inhabiting the lower Columbia River drainage in Washington, to Morro Bay in California. It is also found in the Puget Sound drainage in Washington. It reaches a maximum length of 11.0 cm. It prefers rocky riffles of headwaters and creeks.

The Columbia sculpin is a species of fish in the family Cottidae. It is found in the United States and Canada, inhabiting the Columbia River drainage and Harney Basin in Oregon, British Columbia, Idaho, Washington, and Nevada. It reaches a maximum length of 11.2 cm. It prefers rocky riffles of headwaters and creeks.

The Ozark sculpin is a species of fish in the family Cottidae. It is found in the United States and Canada, inhabiting the Osage, Gasconade, and Black river drainages in Missouri. It reaches a maximum length of 14.0 cm. It prefers rocky riffles of headwaters and creeks.

Marbled sculpin Species of fish

The marbled sculpin is a species of fish in the family Cottidae. It is found in the United States, inhabiting the Klamath River drainage in California and Oregon, and the Pit River system from Fall River to Hat Creek, California. It reaches a maximum length of 9.0 cm. It prefers soft-bottomed runs of clear, cold creeks and small to medium rivers.

The margined sculpin is a species of fish in the family Cottidae. It is found in the United States, inhabiting the Columbia River drainage from the Walla Walla River system, Washington, to the Umatilla River system in Oregon. It reaches a maximum length of 13.0 cm. It prefers rubble and gravel riffles.

Reticulate sculpin Species of fish

The reticulate sculpin is a species of fish in the family Cottidae. It is found in the United States, inhabiting Pacific Slope drainages from the Snohomish River and Puget Sound in Washington to the Rogue River system in Oregon and California. It reaches a maximum length of 10.0 cm. This sculpin occurs in a variety of habitats, but mainly occurs in the slower sections of coastal headwaters, creeks, and small rivers. It prefers faster water with rubble or gravel substrate, but occurs in pools and along stream edges when other sculpin species are present. Often it occurs in clear cold water in forested areas. It's ideal habitat is cold creeks in old-growth forest, with plenty of riffles and runs. This species is tolerant of variable water temperatures and salinities. Where other sculpin species are common, spawning occurs in slow-flowing areas; where other sculpin species are rare or absent, spawning usually occurs in riffles.

Torrent sculpin Species of fish

The torrent sculpin is a species of fish in the family Cottidae. It is found in the United States and Canada, inhabiting upper Fraser River drainage in British Columbia to the Nehalem River in Oregon (including the Columbia River drainage of British Columbia, Washington, Idaho, Montana and Oregon. It reaches a maximum length of 15.5 cm. It prefers swift waters of small to large rivers with stable gravel or rubble bottoms, and rocky lake shores.

The Tallapoosa sculpin is a species of fish in the family Cottidae. It is found in the United States in the Tallapoosa River drainage above the Fall Line in east central Alabama and west-central Georgia. It reaches a maximum length of 7.7 cm. It prefers rocky shoals and riffles of small upland streams.

František Moravec (parasitologist) Czech parasitologist (born 1939)

František Moravec is a Czech parasitologist who specialised on the Nematodes, especially the nematodes parasites of fishes. His research was mainly in the field of taxonomy of the Nematoda.

References

  1. NatureServe (2013). "Cottus caeruleomentum". IUCN Red List of Threatened Species . 2013: e.T202655A15362766. doi: 10.2305/IUCN.UK.2013-1.RLTS.T202655A15362766.en .
  2. 1 2 Froese, R. and D. Pauly, Eds. Cottus caeruleomentum. FishBase. 2011.
  3. 1 2 3 Cottus caeruleomentum. NatureServe. 2012.
  4. 1 2 3 Kinziger, A. P., et al. (2000). New species of Cottus (Teleostei: Cottidae) from the Middle Atlantic Eastern United States. Copeia 2000(4) 1007-18.
  5. 1 2 Kinziger, A. P. and R. L. Raesly. (2001). A narrow hybrid zone between two Cottus species in Wills Creek, Potomac drainage. Journal of Heredity 92(4) 309-314.
  6. Moravec, F. and P. Muzzall. (2007). Rediscription of Rhabdochona cotti (Nematoda, Rhabdochonidae) from Cottus caeruleomentum (Teleostei, Cottidae) in Maryland, USA, with remarks on the taxonomy of North American Rhabdochona spp. Acta Parasitologica 52(1) 51-57.
  7. Moravec, F. and P. M. Muzzall. (2009). New species of Freitascapillaria (Nematoda: Capillariidae) from the intestine of Cottus caeruleomentum (Teleostei: Cottidae) in Maryland. Journal of Parasitology 95(4) 987-90.