Kern brook lamprey

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Kern brook lamprey
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Infraphylum: Agnatha
Class: Hyperoartia
Order: Petromyzontiformes
Family: Petromyzontidae
Genus: Lampetra
Species:
L. hubbsi
Binomial name
Lampetra hubbsi
(Vladykov & Kott 1976)
Synonyms [2] [3]
  • Entosphenus hubbsiVladykov & Kott 1976

The Kern brook lamprey (Lampetra hubbsi) is a species of lamprey in the Petromyzontidae family endemic to the United States. [4] It is found on the east side of San Joaquin Valley, in lower Merced, Kaweah, Kings, and San Joaquin rivers in California. [1] It can grow to up to around 14 centimeters, and is characterized by its grayish brown and white coloring, and black spots on its fins. [4]

Contents

Description

L. hubbsi is similar to other lampreys in that it has a thin eel body. Some of the morphological characteristics separating L. hubbsi from other lamprey species include SO lamina 2 cusps; 4 inner laterals unicuspid; IO lamina 5 cusps; posterials about 10 (unicuspid); velar tentacles 3; reduced number of myomeres. Not much is known about the biology of these lampreys.

Classification

Lamprey taxonomy can prove to be difficult because there are few morphological differences that can be observed. L. hubbsi was originally under the subgenus Entosphenus. The genus Lampetra comprises the subgenera Entosphenus, Lethenteron, and Lampetra. Species of the Entosphenus subgenus formed a tight-knit clade that was very distinct from the other two subgenera under the genus Lampetra. However, molecular evidence helped lead to the determination that the Kern Brook Lamprey should be under the genus Lampetra instead, as Lampetra hubbsi clustered with species from the Lampetra subgenus from the west coast of North America.

Fecundity

L. hubbsi was determined to have a higher fecundity in comparison to another nonparasitic lamprey species, Eudontomyzon hellenicus , also known as the Macedonia brook lamprey, which is critically endangered. The mean absolute fecundity of L. hubbsi was twice the amount of the mean absolute fecundity of Eudontomyzon hellenicus. The absolute fecundity of the lampreys was determined by direct counting.

Threats

Some of the threats that the Kern brook lamprey faces includes the loss of habitat and being degraded by dams, channelization, and diversions. This has caused population fragmentation and these lamprey also face a narrowly restricted range, poisoning associated with fisheries management, and impacts of fish that are not native.

Related Research Articles

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Petromyzontidae are a family of lampreys native to the Northern Hemisphere, comprising the vast majority of living lampreys. Petromyzontids have the highest number of chromosomes (164–174) among vertebrates.

<span class="mw-page-title-main">Brook lamprey</span> Species of jawless fish

The brook lamprey, also known as the European brook lamprey and the western brook lamprey is a small European lamprey species that exclusively inhabits freshwater environments. The species is related to, but distinct from, the North American western brook lamprey.

<span class="mw-page-title-main">Arctic lamprey</span> Species of jawless fish

The Arctic lamprey, also known as the Japanese river lamprey or Japanese lampern, is a species of lamprey, a jawless fish in the order Petromyzontiformes. It inhabits coastal freshwater habitat types in the Arctic. Some populations are anadromous, spending part of their lives in the ocean. It is the most common and widespread lamprey in the Arctic region.

<span class="mw-page-title-main">European river lamprey</span> Species of freshwater lamprey

The European river lamprey, also known as the river lamprey or lampern, is a species of freshwater lamprey.

<span class="mw-page-title-main">Western brook lamprey</span> Species of jawless fish

The western brook lamprey is a small (<18 cm), widely distributed, non-parasitic species of jawless fish endemic to the freshwater coastal waterways of the Western United States and Canada. Its range extends from the North American Pacific coast from Taku River, southern Alaska, Queen Charlotte Islands, to central California, including Vancouver Island, with major inland distributions in the Columbia and Sacramento-San Joaquin watersheds.

<i>Eudontomyzon danfordi</i> Species of jawless fish

Eudontomyzon danfordi, the Carpathian brook lamprey or Danube lamprey, is a species of lamprey in the family Petromyzontidae. It is found in Austria, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic, Hungary, Moldova, Romania, Serbia, Montenegro, Slovakia, and Ukraine. Unlike other brook lampreys, this fish is parasitic.

<i>Eudontomyzon</i> Genus of jawless fishes

Eudontomyzon is a genus of lamprey in the family Petromyzontidae. Most species are found in Eastern Europe.

The Greek lamprey is a species of jawless fish in the Petromyzontidae family. It is endemic to Greece. Its natural habitats are rivers and freshwater springs. It is threatened by habitat loss. Originally considered a species of the genus Eudontomyzon, later phylogenetic analyses suggested that a placement within Caspiomyzon was more likely. It is the most endangered species of lamprey, living only in the Strymon and Louros river basins.

<span class="mw-page-title-main">Ukrainian brook lamprey</span> Species of jawless fish

The Ukrainian brook lamprey is a species of lamprey in the Petromyzontidae family. It is found in brackish and freshwater areas in Austria, Belarus, Bulgaria, the Czech Republic, Georgia, Hungary, Moldova, North Macedonia, Poland, Romania, Russia, Serbia and Montenegro, Slovakia, Turkey, and Ukraine. It invaded the basin of the Volga River in 2001.

Eudontomyzon vladykovi, or Vladykov's lamprey, is a species of lamprey in the family Petromyzontidae. It is found in Austria, Germany, The Czech Republic, Bulgaria, Romania, Serbia, and Montenegro.

<i>Lampetra</i> Genus of jawless fishes

Lampetra is a genus of lampreys in the family Petromyzontidae.

<span class="mw-page-title-main">Lake lamprey</span> Species of jawless fish

The lake lamprey, Entosphenus macrostomus, also known as the Vancouver lamprey or Cowichan lamprey, a recent derivative of the Pacific lamprey, is a species of freshwater lamprey endemic to two North American lakes: Lake Cowichan and Mesachie Lake in Vancouver Island, Canada. The lamprey was originally called the Vancouver Island lamprey, until an error in filing shortened it to the Vancouver lamprey. The alternate common name of "Cowichan lamprey" was coined and promoted by the species' describer, Dr. Dick Beamish, who originally identified the species in the 1980s.

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<i>Lethenteron</i> Genus of jawless fishes

Lethenteron is a genus of lamprey in the family Petromyzontidae.

<span class="mw-page-title-main">Lamprey</span> Order of jawless fish

Lampreys are a group of jawless fish comprising the order Petromyzontiformes. The adult lamprey is characterized by a toothed, funnel-like sucking mouth. The common name "lamprey" is probably derived from Latin lampetra, which may mean "stone licker", though the etymology is uncertain. Lamprey is sometimes seen for the plural form.

<i>Eudontomyzon stankokaramani</i> Species of jawless fish

Eudontomyzon stankokaramani, the Drin brook lamprey, is a non-predatory, freshwater resident species of lamprey found in the Drin river system of Albania and Kosovo and the basins of Lakes Ohrid and Shkodra.

The Caspian lamprey, Caspiomyzon wagneri, is a species of lamprey native to the Caspian Sea, and a member of the Petromyzontidae family. This species is a non-parasitic lamprey that feeds on animal carcasses.

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<i>Lampetra ayresii</i> Species of jawless fish

Lampetra ayresii is a species of lamprey in the family Petromyzontidae. It is also called the river lamprey or western river lamprey. It is found in the eastern Pacific, specifically from Tee Harbor, Juneau in Alaska to the Sacramento–San Joaquin drainage in California, USA. It can survive in both marine surface waters and freshwater lakes, rivers, and creeks. In freshwater, it is found typically in the lower portions of large river systems. It is a predatory fish and feeds on fishes in the size range of 10–30 cm. It feeds by attaching to prey using its round, sucker-like mouth. Adult western river lampreys typically grow to about 21 cm (8.3 in) total length (TL), but can reach 31 cm (12 in) TL.

References

  1. 1 2 NatureServe (2013). "Lampetra hubbsi". IUCN Red List of Threatened Species . 2013: e.T11207A18235460. doi: 10.2305/IUCN.UK.2013-1.RLTS.T11207A18235460.en . Retrieved 15 November 2021.
  2. Van Der Laan, Richard; Eschmeyer, William N.; Fricke, Ronald (11 November 2014). "Family-group names of Recent fishes". Zootaxa. 3882 (1): 1–230. doi: 10.11646/zootaxa.3882.1.1 . PMID   25543675.
  3. Froese, R.; Pauly, D. (2017). "Petromyzontidae". FishBase version (02/2017). Retrieved 18 May 2017.
  4. 1 2 Froese, Rainer; Pauly, Daniel (eds.) (2012). "Entosphenus hubbsi" in FishBase . April 2012 version.