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Systematic Studies of Otophysian Himalayan Fishes
Başlık:
Systematic Studies of Otophysian Himalayan Fishes
Yazar:
Thoni, Ryan J., author.
ISBN:
9780438127371
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (246 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.
Advisors: Richard L. Mayden Committee members: Peter Bernhardt; David Edds; Jason Knouft; Robert Wood.
Özet:
Three groups of Himalayan fishes of the superorder Otophysi, Garra (Cypriniformes: Cyprinidae), Glyptosterninae (Siluriformes: Sisoridae), and Aborichthys (Cypriniformes: Nemacheilidae ), are examined and given taxonomic and/or phylogenic treatment. There is a strong focus on these fishes in Bhutan, where most fieldwork was conducted for this dissertation, however analyses include fishes from Kyrgzstan to Thailand, to western Africa to Borneo. An in depth study of the Garra of Bhutan examines their diversity, distribution, and ecology. Two new species of Garra are described from Bhutan. Additionally, taxonomic treatment of the Garra from Southeast Asia is provided, including the descriptions of two new species, one from Borneo and one from Thailand. Molecular data derived from two nuclear genes, RH and RAG1, and two mitochondrial genes, CO1 and Cytb is used to produce a phylogeny of Garra. Garra is not resolved as a monophyletic group. Garra sensu stricto excludes the Garra imberbis species group, which is herein returned to Angiogarra, and the Garra cambodgiensis species complex. Torrent catfishes of the subfamily Glyptosterninae from Bhutan are examined using both morphological and molecular characters. Five new species are described: Creteuchiloglanis bumdelingi sp. nov., Exostoma mangdechhuensis sp. nov., Parachiloglanis benjii sp. nov., P. dangmechhuensis sp. nov and P. wangchucki sp. nov. Ecological notes are provided for each new species based on field observations and gut content analysis. Molecular data derived from the nuclear gene RAG2 and the mitochondrial gene CYTb recovered relationships within Parachiloglanis and Glyptostenrinae . A dichotomous key to the Glyptosterninae of Bhutan is provided. After receiving a National Geographic Society Committee for Research and Exploration Grant, an expedition to Kyrgyzstan rendered specimens of a glyptosternine catfish that has not been examined in over a century. Molecular and morphological analyses of this species led to its revalidation and placement in a phylogeny. Species of the loach genus Aborichthys were examined using both morphological and molecular characters for diversity and relationships. The type species of Aborichthys, A. kempi, is a junior synonym of Cobitis boutanensis, a specimen collected in Bhutan in 1838, making A. boutanensis the type species of the genus. The first phylogeny of Aborichthys is presented using the mitochondrial gene CYTb. Lastly, an annotated checklist of the fishes of Bhutan, based on results from the first nationwide survey, conducted in 2013, is provided, which accounts for 109 species.
Notlar:
School code: 0193
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(689537.1) | 689537-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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