Ichthyodiversity of Periyar Tiger Reserve, Kerala, India

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Bojan Dolenc
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Ichthyodiversity of Periyar Tiger Reserve, Kerala, India

Post by Bojan Dolenc » Sun Sep 26, 2010 2:19 am

Radhakrishnan, K.V. & B. Madhusoodana Kurup; 2010; "Ichthyodiversity of Periyar Tiger Reserve, Kerala, India."; Journal of Threatened Taxa; v.2(10): p.p.1192-1198.
http://threatenedtaxa.org/ZooPrintJourn ... 2-1198.pdf
Previous checklists of fishes from the Periyar Tiger Reserve, Kerala merely included species from Periyar Lake and adjoining streams. To fill this lacuna, we conducted a comprehensive survey, across 10 diverse aquatic habitats within Periyar Tiger Reserve, revealing the occurrence of 54 species belonging to six orders and 19 families; an addition of 17 species to the previous lists. Twenty-four species found in this reserve were listed under different threat categories. Forty-six species were found only in less than four sampling sites of which 18 species were encountered in single location each. Nine species were very common, 10 common, 17 moderate, 12 rare and six very rare in their relative abundance. Twenty-two species are endemic to the Western Ghats of which six species are found only in the Periyar Tiger Reserve. The Periyar river-stream system had more number of fish species (36, 67%) than Pamba river-stream system. Among the different sampling sites, Azhutha had both the highest number of fish species (30) and the highest number of threatened fish species (14). The highest number of low abundant fish species (very rare/rare) was observed at Mlappara (7). Considering the restricted distribution, number of endemic fishes and threat status, it is necessary to implement urgent management plans for the conservation of freshwater fish fauna of Periyar Tiger Reserve.
Keywords: Conservation, distribution, endemism, fish diversity, Periyar Tiger Reserve, spatial variation, threats.
Change in habit, producing change of function, is the main cause of the production of change in living structure. F. Wood Jones (1953) Trends of life

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