Ichthyofaunal Diversity and Water Quality in the Kangsabati Reservoir, West Bengal, India

Abstract

The ichthyofauna in relation to water quality was studied on monthly basis from March, 2010 to February, 2011 in the Kangsabati Reservoir, West Bengal. The study revealed that physicochemical parameters of Kangsabati Reservoir were congenial for 39 fish species of commercial importance, belonging to 7 orders, 15 families, and 26 genera. The Cypriniformes were dominant with 17 species, followed by Siluriformes and Perciformes, with 7 species each, Channiformes with 3 species, Osteoglossiformes and Synbranchiformes with 2 species each, and Anguilliformes with 1 species. Regarding their conservation status, 27 species were of least concern, 1 species was vulnerable, 6 species were near threatened, 1 species was data deficient, and 4 species were not evaluated (IUCN-Version 2014.1). Economical values have also been evaluated. Water parameters such as temperature, pH, alkalinity, dissolved oxygen, hardness, free CO2, salinity, total inorganic nitrogen, and phosphate were recorded and found suitable for fish production. Conductivity, transparency, and high chloride level are minor limiting factor that may needs rectification for improved fisheries management.

Physico-Chemical Status of Eleyele Reservoir, Ibadan, Nigeria

“…There is marked variation in observed spatial alkalinity and hardness, which could be attributed to high influx of floodwater which contains suspended and dissolved materials. Total hardness was highest in wet season and conforms to the findings of Bera et al [52] on Kangsabati reservoir, Onozeyi [12] on River Ogun, Mustapha and Omotosho [22] on Moro Lake, and Garg [53] on River Mandakini. On the contrary, Hujare [54] reported high total hardness concentration during summer than rainy season and winter season.…”

“…Alkalinity, pH and hardness affect the toxicity of many substances in the water. In the present study, the total alkalinity and hardness value recorded compared favourably with the trend obtained in Çamligoze Dam Lake [51] and Kangsabati reservoir [52] and was within the optimum value [32]. There is marked variation in observed spatial alkalinity and hardness, which could be attributed to high influx of floodwater which contains suspended and dissolved materials.…”

Plankton dynamics of Kanke reservoir (Jharkhand, India) in relation to physico-chemical parameters of water

“…The concentration of free carbon dioxide in Kanke reservoir was varied from 3.1-5.4 mg/l. Similar findings reported by other researchers where the values ranged between 1.75-5.81 mg/l (Bora and Biswas, 2015), 3.33-9.66 mg/l (Bera et al, 2014). It was noticed that at station 1 and at station 4, the values were comparatively higher than other stations which showed visual signs of pollution with high organic load and weed infestation.…”

Studies on fish diversity concerning Hydro-ecology of Kangsabasti river in Purulia district, West Bengal, India

“…For this study, several attempts were made to collect, classify and identify fish of river Kangsabati to document the fish diversity, abundance and richness concerning different water parameters viz. Temperature, Conductivity, Transparency, dissolved oxygen, pH, salinity, conductivity and zooplankton density, etc 4,6,9,11 .…”