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Balkhi, M. H.
- Prevalence of Escherichia coli Serotypes in Water and the Fish Schizothorax niger in Dal Lake
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1 Sher-e-Kashmir University of Agricultural Sciences and Technology, Rangil, Srinagar, J&K, IN
1 Sher-e-Kashmir University of Agricultural Sciences and Technology, Rangil, Srinagar, J&K, IN
Source
Nature Environment and Pollution Technology, Vol 14, No 2 (2015), Pagination: 415-418Abstract
Escherichia coli serotypes in water and fish (Schizothorax niger) samples of Dal Lake in autumn (2010), winter (2010-11) and spring (2011) seasons were analysed. A total of 108 isolates from water and fish were recovered. The predominant serotype in water was O8 (16.66%), followed by O25 (14.81%) and O140 (10.37%) and of fish, serotype O68 (18.87%), followed by O84 (13.20%). Serotypes O78, O86, O153, O84, O68 and O25, known for their association with human and animal diseases, were isolated from both fish and water samples.Keywords
Dal Lake, Escherichia coli, Serotypes, Schizothorax niger.Full Text
- Experiments on the Rearing of Rainbow Trout Oncorhynchus mykiss Walbaum in Kashmir
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Affiliations
1 S. K. University of Agricultural Sciences and Technology of Kashmir, Shuhama Campus, Alusteng, Srinagar-190 006, Kashmir, J&K, IN
1 S. K. University of Agricultural Sciences and Technology of Kashmir, Shuhama Campus, Alusteng, Srinagar-190 006, Kashmir, J&K, IN
Source
Nature Environment and Pollution Technology, Vol 8, No 2 (2009), Pagination: 225-230Abstract
Rainbow trout is the native of rivers and lakes in the western half of North America. However, it has been transplanted across the world including Kashmir, India. Experiments conducted to study the rearing success of the fish at Dachigam Trout Fish Farm, Laribal, Kashmir, India during 2004-07 revealed that the fish attained tablesize (250 g) within 24 months. Fish were fed with formulated feed (having 40% protein content) at the rate of 4% of body weight daily in split doses. Early stages of the fish (up to advanced fry) were fed with higher protein content feed (48%) at the rate of 8% of body weight. Eggs were obtained by stripping (dry) and incubated in spring water. The eyed ova stage was reached within 14-20 days of stripping. The hatchlings appeared after another 10-15 days and these accepted artificial feed within another 14-20 days. The fish were reared up to advanced fry stage in spring water and the latter stages in stream water. The spring water at Dachigam showed a temperature range of 10.6-13.8°C, pH of 7.0-8.0, dissolved oxygen of 7.0-10.2 mg/L and free carbon dioxide of 0.6-1.7 mg/L, whereas the stream water showed a temperature range of 5.5-15.6°C, pH of 7.2-8.0, dissolved oxygen of 7.7-11.9mg/L and free carbon dioxide of 0.7-1.6mg/L. The saleable table sized trout showed feed conversion ratio (FCR) of 1.45 to 1.80. Males attained full maturity after 2 years, while females after 3 years.Keywords
Rainbow Trout, Oncorhynchus mykiss, Rearing, Feed Conversion Ratio, Kashmir, Stripping.Full Text
- Assessment of Trophic State of Nagin Lake Based on Limnological and Bacteriological Studies
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Affiliations
1 Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Rangil, IN
1 Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Rangil, IN
Source
Nature Environment and Pollution Technology, Vol 16, No 2 (2017), Pagination: 485-491Abstract
The present study was carried out to evaluate the trophic condition of Nagin Lake, Kashmir, based on its limnological features and bacterial load. A total of 15 limnological parameters were analysed, besides the bacterial load. The average values recorded were: air temperature (16.19±1.23°C), water temperature (12.40±0.92°C), depth (3.14±0.14 m), transparency (1.93±0.07m), TDS (149.52±5.66 mg.L-1), TSS (95.63±3.27 mg.L-1), pH (8.42±0.07), conductivity (260.61±12.16 μScm-1), dissolved oxygen (6.96±0.13 mg.L-1), free carbon-dioxide (0.55±0.20 mg.L-1), ammonia (199.6±10.34 μg.L-1), nitrate (399.94±203μg.L-1), total phosphorus (492.12±21.79μg.L-1), orthophosphate (50.06± 2.83μg.L-1) and chlorophyll-a (13.43±0.86μg.L-1). Most of the parameters recorded higher values during the warmer seasons of summer and autumn. The bacterial load showed an increasing trend from winter to summer, showing its direct relation with temperature and inverse relation with the dissolved oxygen content. Carlson’s Trophic State Index was used to calculate the trophic state of the lake which showed higher values, suggesting the deteriorating condition of the lake water.Keywords
Limnology, Bacterial Count, Nagin Lake, Carlson’s Index, Trophic State.Full Text
- The Hydrochemistry of a Himalayan Lake Nigeen
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Authors
Affiliations
1 Division of Aquatic Environmental Management, Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Rangil, Nagabal, Kashmir-190 006, IN
2 Division of Fish Nutrition & Biochemistry, Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Rangil, Nagabal, Kashmir-190 006, IN
1 Division of Aquatic Environmental Management, Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Rangil, Nagabal, Kashmir-190 006, IN
2 Division of Fish Nutrition & Biochemistry, Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Rangil, Nagabal, Kashmir-190 006, IN
Source
Nature Environment and Pollution Technology, Vol 17, No 2 (2018), Pagination: 625-629Abstract
The Nigeen lake is the deepest and most attractive basin of Dal lake which has attracted foreign tourists because of its placid waters and calm environment. The lake water besides recreation is also being used for cultivation of vegetable and potable purposes. In the recent years huge settlements have come up around the Nigeen lake on all sides reaching to a population of more than twelve thousand souls in the immediate catchment, which excludes the boat population and floating population who live in about fifty house boats within the lake. Raw sewage entering the lake has enriched the freshwater of Nigeen to a large extent. Statistically, ANOVA test showed significant variation in transparency, pH, dissolved oxygen, calcium, nitrogen and phosphorus indicating clear variation between littoral and pelagic zones. The present paper is an attempt to assess its present water quality status and to record the chemical enrichment of the lake water over a period of time.Keywords
Lake Nigeen, Trophic Level, Eutrophication, Water Quality.Full Text
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