Cottoperca: Difference between revisions
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* ''[[Cottoperca gobio]]'' <small>([[Albert Günther|Günther]], 1861)</small> (Channel bull blenny) |
* ''[[Cottoperca gobio]]'' <small>([[Albert Günther|Günther]], 1861)</small> (Channel bull blenny) |
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* ''[[Cottoperca trigloides]]'' <small>([[Johann Reinhold Forster|J. R. Forster]], 1801)</small> |
* ''[[Cottoperca trigloides]]'' <small>([[Johann Reinhold Forster|J. R. Forster]], 1801)</small> |
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==Characteristics== |
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''Cottoperca'' species are larger than the related ''[[Bovichtus]]'' species, with a maximum [[total length]] of {{cvt|80|cm}}, and unlike them they are clothed in scales. The large head is bony with only weak spines on the [[Operculum (fish)|operculum]]. There is a small fleshy tentacle above each eye. Like ''Bovichtus'' they have robust lower fin rays on the [[pelvic fin]] as an adaptation for gripping onto the substrate.<ref name = Eastman>{{cite book | author = Joseph T. Eastman | year = 1993 | title = Antarctic Fish Biology: Evolution in a Unique Environment | publisher = Academic Press | isbn = 978-0-12-228140-2 | pages = 69-70}}</ref> |
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==Distrbution and habitat== |
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''Cottoperca'' fishes are found in the waters off the southern cone of South America in the southwestern Atlantic around [[Cape Horn]] and Tierra de Fuego into the southeastern Pacific Ocean. Their range extends as far north as 41°S and south to 54°S.<ref name = Lattuca>{{cite journal | author1 = María Eugenia Lattuca1 | author2 = Facundo Llompart | author3 = Esteban Avigliano | author4 = Marta Renzi | author5 = Ileana De Leva | author5 = Claudia Clementina Boy | author6 = Fabián Alberto Vanella | author7 = María Eugenia Barrantes | author8 = Daniel Alfredo Fernández | author9 = Cristiano Queiroz de Albuquerque | display-authors = 3 | year = 2020 | title = First Insights Into the Growth and Population Structure of ''Cottoperca trigloides'' (Perciformes, Bovichtidae) From the Southwestern Atlantic Ocean | journal = Frontiers in Marine Science | volume = 7 | pages = 421 | doi = 10.3389/fmars.2020.00421}}</ref> They can be found in shallow waters as well as in water that is hundreds of metres deep, although they are typically found at depths of {{cvt|100|to|150|m}}.<ref name = Eastman/> |
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==References== |
==References== |
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Revision as of 17:04, 13 September 2021
| Cottoperca | |
|---|---|
| |
| Channel Bull Blenny (C. gobio) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Bovichtidae |
| Genus: | Cottoperca Steindachner, 1875 |
| Type species | |
| Cottoperca rosenbergii Steindachner, 1875
| |
Cottoperca is a genus of marine ray-finned fishes belonging to the family Bovichtidae, the temperate icefishes or thornfishes. They are found in the southeastern Pacific, southwestern Atlantic and northern Southern Oceans off southern South America.
Taxonomy
Cottoperca was first formally described as a genus in 1875 by the Austrian ichthyologist Franz Steindachner with Cottoperca rosenbergii which Steindachner described as its only species.[1] C. rosenbergii was later found to be a synonym of Batrachus trigloides which had been described by the German naturalist Johann Reinhold Forster in 1801.[2] Some taxonomic authorities consider that Cottoperca is monotypic and that the only valid species is C. gobio,[3] although this is not the position taken by the 5th edition of Fishes of the World,[4] World Register of Marine Species,[5] FishBase[6] or the Catalog of Fishes, which all give the genus 2 species.[2] The genus name is made up from cottus, meaning "sculpin" and perca which means "perch", an allusion Steindachner did not explain but which is probably a reference to the sculpin like shape of C. rosenbergii.[7]
Species
There are currently two recognized species in this genus:[6]
- Cottoperca gobio (Günther, 1861) (Channel bull blenny)
- Cottoperca trigloides (J. R. Forster, 1801)
Characteristics
Cottoperca species are larger than the related Bovichtus species, with a maximum total length of 80 cm (31 in), and unlike them they are clothed in scales. The large head is bony with only weak spines on the operculum. There is a small fleshy tentacle above each eye. Like Bovichtus they have robust lower fin rays on the pelvic fin as an adaptation for gripping onto the substrate.[8]
Distrbution and habitat
Cottoperca fishes are found in the waters off the southern cone of South America in the southwestern Atlantic around Cape Horn and Tierra de Fuego into the southeastern Pacific Ocean. Their range extends as far north as 41°S and south to 54°S.[9] They can be found in shallow waters as well as in water that is hundreds of metres deep, although they are typically found at depths of 100 to 150 m (330 to 490 ft).[8]
References
- ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Bovichtidae". Catalog of Fishes. California Academy of Sciences. Retrieved 13 September 2021.
- ^ a b Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Cottoperca". Catalog of Fishes. California Academy of Sciences. Retrieved 13 September 2021.
- ^ "Cottoperca Steindachner, 1876". ITIS. Retrieved 13 September 2021.
- ^ J. S. Nelson; T. C. Grande; M. V. H. Wilson (2016). Fishes of the World (5th ed.). Wiley. p. 464. ISBN 978-1-118-34233-6.
- ^ Nicolas Bailly (2014). "Cottoperca". WoRMS. World Register of Marine Species. Retrieved 13 September 2021.
- ^ a b Froese, Rainer and Pauly, Daniel, eds. (2021). Species of Cottoperca in FishBase. June 2021 version.
- ^ Christopher Scharpf & Kenneth J. Lazara, eds. (12 April 2021). "Order Perciformes: Suborder Notothenoididei: Families Bovichtidae, Pseaudaphritidae, Elegopinidae, Nototheniidae, Harpagiferidae, Artedidraconidae, Bathydraconidae, Channichthyidae and Percophidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 13 September 2021.
- ^ a b Joseph T. Eastman (1993). Antarctic Fish Biology: Evolution in a Unique Environment. Academic Press. pp. 69–70. ISBN 978-0-12-228140-2.
- ^ María Eugenia Lattuca1; Facundo Llompart; Esteban Avigliano; et al. (2020). "First Insights Into the Growth and Population Structure of Cottoperca trigloides (Perciformes, Bovichtidae) From the Southwestern Atlantic Ocean". Frontiers in Marine Science. 7: 421. doi:10.3389/fmars.2020.00421.
{{cite journal}}: CS1 maint: numeric names: authors list (link) CS1 maint: unflagged free DOI (link)
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