Diversity, threats and conservation of catfish fauna of the Krishna River, Sangli District, Maharashtra, India

Kumbar, Suresh M.; Lad, Swapnali B.

doi:10.11609/jott.o3394.5362-7

Cited by 2 publications

(4 citation statements)

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“…On the contrary, mortality of larger size individuals (> 67.5 mm) indicating the greater fishing pressure. According to the Kumbar and Lad (2014) various catfish species inhabiting the Krishna River basin including P. khavalchor is subjected to various threats such as habitat modifications caused by dams, habitat loss due to sand mining, rapid development in urbanization, increasing pollution, overexploitation, destructive fishing methods (dynamite fishing). Higher fishing mortality in P. khavalchor could be attributed to the any of the above mentioned factor/s.…”

Section: Discussionmentioning

confidence: 99%

“…Pachypterus acutirostris (Day, 1870) distributed in Irrawaddy, Sittang, and Bago rivers, Myanmar (Eschmeyer, Fricke, & van der Laan, 2018;Kottelat, 2013); Pachypterus atherinoides (Bloch, 1794) distributed in river drainages of the Indian subcontinent north of the Cauvery, Bangladesh, Nepal, and Pakistan (Ahamed et al, 2018;Buragohain, 2018;Eschmeyer et al, 2018); and Pachypterus khavalchor (Kulkarni, 1952) which inhabits the Krishna River basin of Peninsular India (Dahanukar, Paingankar, Raut, & Kharat, 2012;Eschmeyer et al, 2018). Each of these species is extremely delicious and having good market demands in their distribution range and thus provides dietary and financial advantage to the local community (Buragohain, 2018;Gosavi, Kharat, Kumkar, & Navarange, 2018;Kumbar & Lad, 2014). Since Pachypterus species forms an important part of the open-access fisheries, they are getting exploited in their distribution range leading to a huge decline in population (Buragohain, 2018;Kumbar & Lad, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Each of these species is extremely delicious and having good market demands in their distribution range and thus provides dietary and financial advantage to the local community (Buragohain, 2018;Gosavi, Kharat, Kumkar, & Navarange, 2018;Kumbar & Lad, 2014). Since Pachypterus species forms an important part of the open-access fisheries, they are getting exploited in their distribution range leading to a huge decline in population (Buragohain, 2018;Kumbar & Lad, 2014). In support to this, Dahanukar (2011) and Menon (1999) already pointed that several anthropogenic activities such as urbanization, industrial developments, and mining are contributing to dwindling population of P. khavalchor.…”

Section: Introductionmentioning

confidence: 99%

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Assessing the sustainability of lepidophagous catfish, Pachypterus khavalchor (Kulkarni, 1952), from a tropical river Panchaganga, Maharashtra, India

Gosavi¹,

Kharat²,

Kumkar³

et al. 2019

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Background: The Western Ghats of India, one of the global biodiversity hotspots and freshwater eco-regions, harbors several fish species which not just form the important part of the world's freshwater biodiversity yet in addition are the vital segment of livelihood of the neighborhood population. The rate of fish decline in the Western Ghats is alarming. The absence of organized study and data scarcity on basic biology and life history traits of several species could be one reason behind the decline, and thus it is difficult to execute conservation action/s. This is especially true, particularly for data-deficient species for which definite data related to distribution, population size, and trend is not available. The present study deals with the detailed investigation of population dynamics of catfish species, Pachypterus khavalchor, which is data-deficient species inhabiting the Western Ghats of India and forms an important component of freshwater inland fishery, providing nutritional and financial security to the local community. Methods: Specimens for the present study were collected monthly for a period of 1 year from the River Panchaganga and length-frequency data were analyzed using FiSAT II software. Results: Length-weight analysis of pooled (male + female) data suggested the fish exhibited higher exponent than expected under isometry, indicating the positive allometric growth of P. khavalchor in the Panchaganga River. The asymptotic length (L∞) and the growth rate (K) were estimated as 149.63 mm and 0.71 year −1 respectively. Potential longevity (t max ) and length at first capture (Lc) were estimated as 4.22 years and 73 mm respectively. The total (Z), natural (M), and fishing mortality (F) were estimated as 2.23 year −1 , 0.88 year −1 , and 1.35 year −1 respectively. The current exploitation rate (E cur = 0.60) was found to be almost 90% that gives the maximum relative yield per recruit (E max = 0.67). Recruitment pattern revealed two peaks, suggesting the fish have two spawning bouts each year. Conclusions: The stock of P. khavalchor in the Panchaganga River may be in near full exploitation under the current harvesting strategy, with a high chance of recruitment failure in the future. Additional studies on the reproductive biology of P. khavalchor would be particularly welcome for the imposition of the seasonal closure for effective conservation of stock.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessing the sustainability of lepidophagous catfish, Pachypterus khavalchor (Kulkarni, 1952), from a tropical river Panchaganga, Maharashtra, India

Gosavi¹,

Kharat²,

Kumkar³

et al. 2019

JoBAZ

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“…More recently, Kharat et al (2012) provided an updated checklist of the fish fauna of Krishna River at Wai and Dhom reservoir, and reported the presence of 51 species. The only published work on the freshwater fishes of the Krishna River in Sangli District is by Kumbar & Lad (2014) who recorded 13 species of catfishes. In the present paper, we provide a comprehensive checklist of the freshwater fishes of the Krishna River flowing through Sangli district in Maharashtra and identify possible threats so as build baseline data for future conservation action.…”

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confidence: 99%

On the freshwater fish fauna of Krishna River, Sangli District, Maharashtra, India

et al. 2021

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Freshwater fish fauna of Krishna River, Sangli district was studied from 2013 to 2017. A total of 73 species belonging to 10 orders, 22 families, and 49 genera were recorded, of which, 29 species are endemic to the Western Ghats and 11 species endemic to the Krishna River system. Labeo kontius, an endemic barb of the Cauvery River System was recorded for the first time from the Krishna River, Maharashtra. As per the IUCN Red List of Threatened Species, 54 species are assessed as ‘Least Concern’, four species as ‘Near Threatened’, three species as ‘Vulnerable’, five as ‘Endangered’, and two as ‘Data Deficient’. The conservation status of two species has not yet been assessed. Fish fauna of the Krishna River within the study area is threatened as a result of alien species, and several anthropogenic stressors such as pollution from industrial as well as agricultural sources, human settlements, and overfishing. Since, this small study area harbours 28 endemic and eight threatened species, their conservation should be given high priority.

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Diversity, threats and conservation of catfish fauna of the Krishna River, Sangli District, Maharashtra, India

Cited by 2 publications

References 10 publications

Assessing the sustainability of lepidophagous catfish, Pachypterus khavalchor (Kulkarni, 1952), from a tropical river Panchaganga, Maharashtra, India

Assessing the sustainability of lepidophagous catfish, Pachypterus khavalchor (Kulkarni, 1952), from a tropical river Panchaganga, Maharashtra, India

On the freshwater fish fauna of Krishna River, Sangli District, Maharashtra, India

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