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EKA Peer Edits

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Hi David,

Your Wiki page looks great! I've split up my edits section by section to make it easier for you to follow the edits. We can definitely talk more in person if you have questions. Its sometimes difficult to articulate edits in writing. All in all the page looks great! The writing it clear, only small edits here and there, and some suggestions for where you could add a little more detail if you have it!

Some edits:

Intro part: - In the intro part I would take out the word "into" in the sentence They are freshwater.... throughout Eurasia and into northern Africa" - Do you know how many species are currently described? It might be cool to add that since you say how many genera and families there are - You might want to link the word 'benthic' with the wiki page

Description: - Why are the difficult to characterize with external traits? Are they just not morphologically distinct/different between groups? You could possibly state why they are difficult -Something that was confusing to me (may just be be and not need an edit) was for the decription of the size you have two fish in parentheses-- th eminiature eel loach and the imperial flower loach, are you using these fish as examples of those sizes? If so I wonder if you might want to have another example for the other end of the size class. Example: if the miniature eel is 23mm than what is an example of a 50cm fish? -What is the weight range for these fish? You have only 1 weight (3kg) but I imagine their weight has a range too -I would link Botiidae and Serpenticobitidae if there are pages for them

Taxonomy: --ENTOMOLOGY -Italicize Cobitis since it is a genus -Link Linnaeus to his Wiki page, and maybe write his full name out -Link Aristotle -Does the Cobitoidea name have latin meaning? Might be cool to specify if for example the word meant something like "small gilled fish" or something like that --CLASSIFICATION

    • I really like how you put their common names in bold like suckers and algae eaters!!**

-Who is Hora?

    • Awesome phylogeny!

--OSTEOLOGY -I dont think you need the commas after neurocranium in between unite Cobitoidea. I THINK you can just have the sentence with the comma after In particular. If you wanted a comma after 'unite Cobitoidea' you can probably keep that one but not the one before unite

Habitat and Distribution: -I think that Northern Africa needs to be capitalized and Central (same goes for the intro part, capitalized Northern)

References: They all look good and properly formatted!

    • Bottom of the page**

-I noticed some notes, i think from the wiki exercises that seem to be at the bottom of your sandbox. you might want to check to make sure you don't want that in there for the final upload!

-Elena Ekarlsenayala (talk) 18:06, 17 February 2019 (UTC)[reply]

Thanks for looking this over, Elena! I've incorporated almost all of your suggestions. I hope the statements about the size range of the group, and the information about its taxonomic history, are more clear now. The number of species within the group was already included in the intro. We both suggested changes to capitalization of directional qualifiers (northern, central, etc.) on each others' articles, haha—I need to read more about it before this goes live. -Dave Davidaboyd (talk) 19:30, 23 March 2019 (UTC)[reply]

Comments from Emily

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[This looks great! Nice job addressing peer feedback, and doing all the formatting (great inclusion of the phylogeny!). There is already an existing page on Cobitoidea... how are you planning to integrate your new page with that existing page? Also, any chance of including some pictures?? They sound cute!]

Loaches are fishes of the superfamily Cobitoidea. They are freshwater, benthic (bottom-dwelling) fishes found in rivers and creeks throughout Eurasia and northern Africa.[1] Loaches are among the most diverse groups of fishes; the 1249 known species of Cobitoidea comprise about 107 genera divided among 9 families.[2][3]

Description

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Loaches display a wide variety of morphologies, making the group difficult to characterize as a whole using external traits. They range in adult length from the 23 mm (1 in) miniature eel-loach, Pangio longimanus, to the 50 cm (20 in) imperial flower loach, Leptobotia elongata, with the latter weighing up to 3 kg (6.6 lbs).[4][5][6] Most loaches are small, narrow-bodied and elongate, with minute cycloid scales that are often embedded under the skin, patterns of brown-to-black pigment along the dorsal surface and sides, and three or more pairs of whisker-like barbels at the mouth.[7] The type species of the family Cobitidae, Cobitis taenia, has a body shape and pigment pattern typical of Cobitoidea. However, many loaches are eel-like or conversely, quite stout-bodied; some balitorids have large, visible scales.

Loaches in the families Cobitidae, Botiidae, and Serpenticobitidae possess a bifid, protrusible spine below the eye, or in the case of the genus Acantopsis, between the eye and the tip of the snout.

Taxonomy and systematics

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Etymology

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The name Cobitoidea comes from the type genus, Cobitis, described by Linnaeus in 1758. However, its origin predates modern zoological nomenclature and derives from a term used by Aristotle to refer to "small fishes that bury... like the gudgeon [can gudgeon be linked to an existing wiki page?]."[1]

Classification

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Cobitoidea is a superfamily within the order Cypriniformes, one of the most diverse groups of vertebrates. The order is commonly known as "minnows, carps, [did you mean to link those, rather than bold them? the bold seems out of place...]and relatives," and in addition to loaches it includes the suckers (Catostomidae) and aglae eaters (Gyrinocheilidae). Fishes of the latter family, which contains only a single genus Gyrinocheilus, are sometimes referred to as sucking loaches. It is uncertain if Gyrinocheilidae, or a clade containing both Gyrinocheilidae and Catostomidae, is sister to Cobitoidea.

History of classification

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At the turn of the 20th century only two families of loaches had been described, and of these only Cobitidae was widely recognized by taxonomists. In the early 1900s, the American ichthyologist Fowler and the Indian ichthyologist Hora recognized what would come to be known as Balitoridae and Gastromyzontidae.[8][9] Nemachelidae, and later Botiidae, were described as subfamilies of Cobitidae until their elevation to family status in 2002.[10][11][12] Owing to shared morphological characteristics (see osteology, below) the relationship of the botiid and cobitid loaches was particularly difficult to resolve until the advent of molecular phylogenetics. Three of the nine families, containing only two or three species apiece, were recognized within the last ten years.[13]

Phylogeny

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Reproduction of molecular phylogeny of Cobitoidea from Bohlen & Šlechtová, 2009[14], with common names following Eschmeyer's Catalog of Fishes.[15]

Gyrinocheilidae Gill 1905 algae eaters

Cobitoidea

Botiidae Berg 1940 pointface loaches

Vaillantellidae Nalbant & Bănărescu 1977 longfin loaches

Cobitidae Swainson 1838 true or spined loaches

Ellopostomatidae Bohlen & Šlechtová 2009 squarehead loaches

Nemacheilidae Regan 1911 brook loaches

Barbuccidae Kottelat 2012 scooter loaches

Balitoridae Swainson 1839 river loaches

Serpenticobitidae Kottelat 2012 serpent loaches

Gastromyzontidae Fowler 1905 hillstream loaches

Osteology

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Among loaches, the majority of known morphological synapomorphies, shared characters derived from a common ancestor [put this in parentheses rather than using commas to separate it], are osteological. In particular, modifications to the ethmoid and surrounding bones within the neurocranium unite Cobitoidea, in addition to certain lateral-line canal ossifications.[7] An erectile suborbital spine, a modification of the lateral ethmoid, was formerly thought to represent a synapomorphy between Cobitidae and Botiidae.[16] It is now considered a pleisiomorphy of Cobitoidea, a character shared by the common ancestor but lost in most loach lineages.[17] The suborbital spine is also retained in the serpent loaches, Serpenticobitidae.

Habitat and distribution

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Loaches are found in a wide variety of habitats throughout Europe, northern Africa, and central and Southeast Asia. Most families occur predominantly in rocky mountain streams at high elevations, but almost all have lowland representatives as well.[1] Many species of Cobitidae burrow in the sand and arefound in riverbeds in broad, flat terrain. At least three families contain blind, troglomorphic species adapted to life in caves.

Relationship with humans

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Some loaches are important food fish, especially in East and Southeast Asia where they are a common sight in markets.

Loaches are popular in the aquarium trade. Some of the most well-known examples are the clown loach (Chromobotia macracanthus), the kuhli loach (Pangio kuhlii), and the dwarf chain loach (Ambastaia sidthimunki). Botiid and gastromyzontid loaches also occasionally make their way into the trade.[18]

Although loaches have a strictly Old World native distribution, the oriental weatherfish, Misgurnus anguillicaudatus, has been introduced in parts of Florida.[19]

  1. ^ a b c Kottelat, M. (2012). "Conspectus cobitidum: an inventory of the loaches of the world (Teleostei: Cypriniformes: Cobitoidei)". The Raffles Bulletin of Zoology. Supplement no. 26: 1–199.
  2. ^ Fricke, R.; Eschmeyer, W. N.; van der Laan, R., eds. (2019). "Eschmeyer's catalog of fishes: genera, species, references". Electronic version accessed February 2019. {{cite web}}: Cite has empty unknown parameter: |dead-url= (help)
  3. ^ Nelson, J. S.; Grande, T. C.; Wilson, M. V. H. (2016). Fishes of the World (5th ed.). Hoboken, New Jersey: John Wiley & Sons. pp. 189–193. ISBN 978-1-118-34233-6.
  4. ^ Britz, R.; Kottelat, M. (2009). "Pangio longimanus, a miniature species of eel-loach from Central Laos (Teleostei: Cypriniformes: Cobitidae)". Ichthyological Exploration of Freshwaters. 20 (4): 371–376. ISSN 0936-9902.
  5. ^ Li, L.; Wei Wei, Q.; Ming Wu, J.; Zhang, H.; Liu, Y.; Xie, X. (2015). "Diet of Leptobotia elongata revealed by stomach content analysis and inferred from stable isotope signatures". Environmental Biology of Fishes. 98 (8): 1965–1978. doi:10.1007/s10641-015-0414-4.
  6. ^ Nichols, J. T. (1943). The Freshwater Fishes of China—Central Asiatic Expeditions. New York: American Museum of Natural History. p. 203.
  7. ^ a b Conway, K. W. (2011). "Osteology of the South Asian genus Psilorhynchus McClelland, 1839 (Teleostei: Ostariophysi: Psilorhynchidae), with investigation of its phylogenetic relationships within the order Cypriniformes". Zoological Journal of the Linnean Society. 163: 50–154. doi:10.1111/j.1096-3642.2011.00698.x.
  8. ^ Fowler, H. W. (1905). "Some Fishes from Borneo". Proceedings of the Academy of Natural Sciences of Philadelphia. 57: 455–523.
  9. ^ Hora, S. L. (1932). "Classification, bionomics and evolution of homalopterid fishes". Memoirs of the Indian Museum. 12 (2): 263–330.
  10. ^ Liu, H.; Tzeng, C. S.; Teng, H. Y. (2002). "Sequence variations in the mitochondrial DNA control region and their implications for the phylogeny of the Cypriniformes". Canadian Journal of Zoology. 80 (3): 569–581. doi:10.1139/z02-035.
  11. ^ Tang, Q.; Liu, H.; Mayden, R.; Xiong, B. (2006). "Comparison of evolutionary rates in the mitochondrial DNA cytochrome b gene and control region and their implications for phylogeny of the Cobitoidea (Teleostei: Cypriniformes)". Molecular Phylogenetics and Evolution. 39 (2): 347–357. doi:10.1016/j.ympev.2005.08.007.
  12. ^ Liu, S.; Mayden, R.; Zhang, J.; Yu, D.; Tang, Q.; Deng, X.; Liu, H. (2012). "Phylogenetic relationships of the Cobitoidea (Teleostei: Cypriniformes) inferred from mitochondrial and nuclear genes with analyses of gene evolution". Gene. 508 (1): 60–72. doi:10.1016/j.gene.2012.07.040.
  13. ^ Armbruster, J. W.; Tan, M. (2018). "Phylogenetic classification of extant genera of fishes of the order Cypriniformes (Teleostei: Ostariophysi)". Zootaxa. 4476 (1): 6–39. doi:10.11646/zootaxa.4476.1.4.
  14. ^ Bohlen, J.; Šlechtová, V. (2009). "Phylogenetic position of the fish genus Ellopostoma (Teleostei: Cypriniformes) using molecular genetic data". Ichthyological Exploration of Freshwaters. 20 (2): 157–162. ISSN 0936-9902.
  15. ^ Van der Laan, R.; Fricke, R.; Eschmeyer, W. N., eds. (2019). "Eschmeyer's catalog of fishes: classification". Electronic version accessed February 2019. {{cite web}}: Cite has empty unknown parameter: |dead-url= (help)
  16. ^ Sawada, Y. (1982). "Phylogeny and zoogeography of the superfamily Cobitoidea (Cyprinoidei, Cypriniformes)". Memoirs of the Faculty of Fisheries Sciences, Hokkaido University. 28 (2): 65–223.
  17. ^ Šlechtová, V.; Bohlen, J.; Tan, H. H. (2007). "Families of Cobitoidea (Teleostei; Cypriniformes) as revealed from nuclear genetic data and the position of the mysterious genera Barbucca, Psilorhynchus, Serpenticobitis and Vaillantella". Molecular Phylogenetics and Evolution. 44: 1358–1365. doi:10.1016/j.ympev.2007.02.019.
  18. ^ Loaches: natural history and aquarium care. Neptune City, NJ: T.F.H. Publications. 2008. ISBN 9780793806201.
  19. ^ Robins, R. H.; Page, L. M.; Williams, J. D.; Randall, Z. S.; Sheehy, G. E. (2018). Fishes in the fresh waters of Florida: an identification guide and atlas. Gainesville, Florida: University of Florida Press. pp. 141–142. ISBN 9781683400332.