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Tekade, Ankita S.
- Disposal, Characteristics and Impact of Thermal Power Plant Effluent along the Coast of Jaigad, Ratnagiri, Maharashtra
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Authors
Affiliations
1 Department of Fisheries Hydrography, College of Fisheries, Shirgaon, Ratnagiri (M.S.), IN
2 Department of Fisheries Engineering, College of Fisheries, Shirgaon, Ratnagiri (M.S.), IN
1 Department of Fisheries Hydrography, College of Fisheries, Shirgaon, Ratnagiri (M.S.), IN
2 Department of Fisheries Engineering, College of Fisheries, Shirgaon, Ratnagiri (M.S.), IN
Source
The Asian Journal of Animal Science, Vol 12, No 1 (2017), Pagination: 15-21Abstract
The effluent discharge conspicuously affected the temperature, DO, salinity, pH of the bay water. It showed comparatively lower dissolved oxygen content and high nutrient content in effluent samples. Significant difference (P<0.05) was observed between the stations in the dissolved oxygen content and temperature. Samples were collected from three different sampling points at Jaigad coastal waters to study the physico-chemical characteristics. The physical and chemical parameters viz., temperature, pH, salinity, alkalinity, DO, total suspended soilds, total dissolved solids, nitrate, phosphate, silicate and sulphate were studied using various standard analytical techniques. The study reveals that the physical and chemical composition of all the samples collected from the sites mainly depends on seasonal variations and discharge from the power plant.Keywords
Effluent, Temperature, Salinity, pH, Dissolved Oxygen, Nutrients, Jaigad.
References
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- Response of Post Larvae of Penaeus monodon (Fabricius, 1798) to Varying Temperatures
Abstract Views :159 |
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Authors
Affiliations
1 Department of Fisheries Hydrography, College of Fisheries, Shirgaon, Ratnagiri (M.S.), IN
2 Department of Fisheries Engineering, College of Fisheries, Shirgaon, Ratnagiri (M.S.), IN
1 Department of Fisheries Hydrography, College of Fisheries, Shirgaon, Ratnagiri (M.S.), IN
2 Department of Fisheries Engineering, College of Fisheries, Shirgaon, Ratnagiri (M.S.), IN
Source
The Asian Journal of Animal Science, Vol 12, No 1 (2017), Pagination: 56-60Abstract
Temperature is a key environmental variable mainly influencing the survival and biological responses of the organisms. In order to understand the influence of temperature on survival and growth of post- larvae (PL 50) of tiger shrimp, Penaeus monodon, static bioassays as per standard methodology were undertaken. The 96 h LT50 value was found to be 32.2 °C. Rates of oxygen consumption were affected by temperature with direct relationship. The oxygen consumption rate of post-larva was the lowest (0.31 mg lit-1) at 28°C, while the highest was at 31°C (0.84 mg lit-1). One-way ANOVA test showed a significant temperature impact on average oxygen consumption rate of the post-larvae. The highest and lowest length and weight gains were observed at 29.5 and 31°C, respectively with a medium growth at 28°C. From the above, it may be concluded that the lethal/critical (maxima) temperature in shrimp thus, depend on acclimatizing temperatures, species, developmental stage and also other environmental variables.Keywords
Growth, Oxygen Consumption, Penaeus monodon, Post Larvae, Temperature.References
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