Profiling of Sediments from Brackishwater Shrimp Ponds in Navsari, Gujarat, India
Bindiya K. Parmar *
College of Fisheries (DBSKKV), Shirgaon, Ratnagiri -415 629, India.
Milind S. Sawant
College of Fisheries (DBSKKV), Shirgaon, Ratnagiri -415 629, India.
Ravikumar M. Chovatia
Kerala University of Fisheries and Ocean Studies, Kochi – 682 506, India.
Pooja Mehta
College of Fisheries (DBSKKV), Shirgaon, Ratnagiri -415 629, India.
*Author to whom correspondence should be addressed.
Abstract
The present study was carried out to observe the soil characteristic of selected shrimp farms near Navsari, Gujarat considering pond size, stocking density and culture practice. Soil sampling was carried out for one summer crop during February to July 2022 from Aat, Karadi and Samapor shrimp farms, Navsari. Three ponds from each shrimp farm were selected for sampling. Soil parameters comprising pH, electrical conductivity (EC), organic carbon, available nitrogen and available phosphorus ranged from 8.04 to 9.86, 0.530 to 4.318 dS m-1, 0.42 to 2.22%, 22.13 to 191.84 kg ha-1 and 29.26 to 97.70 kg ha-1 respectively. No significant difference (p>0.05) were observed in soil parameters with respect to locations except parameters electrical conductivity and available phosphorus (p<0.05). The current study demonstrated that pond size and stocking density both had a significant impact on characteristics of soil as duration of culture progressed.
Keywords: Available nitrogen, available phosphorus, organic carbon, soil characteristic, stocking density