Sedimentary Nutrient Dynamics in Homestead Fishpond Systems from a Subtropical Coastal Area

Anu Rani Karmakar, Md. Akram Ullah, Md. Monjurul Hasan, Liza Akter, Md. Milon Sarker, Takaomi Arai, Mohammad Nurul Azim Sikder, Mohammed Fahad Albeshr and Mohammad Belal Hossain ()
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Anu Rani Karmakar: Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
Md. Akram Ullah: Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
Md. Monjurul Hasan: Bangladesh Fisheries Research Institute, Riverine Sub-Station, Khepupara, Patuakhali 8650, Bangladesh
Liza Akter: Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
Md. Milon Sarker: Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali 3814, Bangladesh
Takaomi Arai: Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE 1410, Brunei
Mohammad Nurul Azim Sikder: Institute of Marine Science and Fisheries, University of Chittagong, Chittagong 4331, Bangladesh
Mohammed Fahad Albeshr: Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
Mohammad Belal Hossain: Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali 3814, Bangladesh

Agriculture, 2022, vol. 12, issue 12, 1-14

Abstract: Homestead ponds are small seasonal ponds that are rarely utilized for fish farming. Culturing fish in these small ponds can boost household fish consumption and cash inflow. The availability of nutrients in the water and sediment, however, plays a significant role in the pond’s natural productivity. This study was conducted to assess nutrient contents and some key physical parameters in the bottom sediments of 30 homestead ponds from the central coast along the Northern Bay of Bengal. Analyses of results showed the average values (±SD) of temperature, pH, electrical conductivity, organic matter (OM), organic carbon (°C), nitrogen (N), phosphorus (P) and sulphur (S) were 17.8 ± 1.12 °C, 7.29 ± 0.11, 0.41 ± 0.09 mS/cm, 29,615.48 ± 10,528.9 mg kg −1 , 11,958 ± 6107 mg kg −1 , 1030.6 ± 252 mg kg −1 , 17.1 ± 13.5 mg kg −1 and 32.6 ± 19.7 mg kg −1 during winter and 27.2 ± 1.81 °C, 6.73 ± 0.12, 0.38 ± 0.17 mS/cm, 19,100.01 ± 13,739.07 mg kg −1 , 11,079 ± 7969 mg kg −1 , 955 ± 229.4 mg kg −1 , 26.6 ± 20.2 mg kg −1 and 23.4 ± 15.9 mg kg −1 during pre-monsoon, respectively. One-way ANOVA revealed no significant differences in the mean value of sediment quality parameters among the selected ponds ( p > 0.05) except for phosphorus in the winter season ( p < 0.05). The sediment quality variables were found to be in the suitable range for fish culture. Pearson’s correlation coefficient values (r) showed that only organic carbon and nitrogen had a strong significant correlation with organic matter ( p < 0.05). Based on Cluster Analysis (CA), two major associations among the nutrients were attained at a 15% similarity level: C, OM, and N in one cluster and P and S in another. The findings showed that the parameters were within the preferable range for aquaculture, and the homestead ponds are average productive ponds.

Keywords: homestead ponds; seasonal variation; nutrients; organic matter; coast (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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