Aquaculture practices in two seasonal floodplains of Bangladesh

Abstract

A comparative technical and economic analysis of two communitybased seasonal floodplains (Khirai and Angrail) of Daudkandi Upazila, Comilla during 2008 to 2010, are represented in this paper. The two floodplains differed mainly in management and fish production which were related to capital investment, variable cost, share of profits and proportional reimbursement to the fishers. Local management committees have been developed in each floodplain with significant differences. Average 142 kg/ha of fish fingerlings (carps such as Catla catla, Labeo rohita, Cirrhinus cirrhosus, Labeo calbasu, Labeo bata and exotic species such as Hypopthalmicthys molitrix, Aristichthys nobilis, Cyprinus carpio, Ctenopharyngodon idella, Pungasius hypophthalmus, Barbonymus gonionotus, Oreochromis niloticus) were stocked at the varying proportions. Fish production obtained were 2.8 to 4.4 mt/ha and 1.1 to 1.3 mt/ha in Khirai and Angrail floodplain, respectively. The average cost of fish production, total income and the net income have been estimated as Tk. 209650 ± 54167.12/ha, Tk. 281306 ± 88263.42/ha and Tk. 71656 ± 35152.51/ha in Khirai floodplain and Tk. 62349 ± 5768.90/ha, Tk. 111930 ± 12711.02/ha and Tk. 49580 ± 6948.26/ha in Angrail floodplain, respectively. The benefit cost ratio (BCR) has been recorded as 1.33 and 1.79 in Khirai and Angrail floodplain, respectively. The results reveal that the fish production and economic benefit was higher in Khirai floodplain.

Study of the production performance by releasing carp fingerlings at selected floodplain of Kotalipara Upazilla, Gopalganj, Bangladesh

“…The weight gain (gm) of species were found T 1 (Rohu: 1250.10±30.10, Catla: 1210.10±30.23, Mrigal: 1201.70±31.75, Silver carp: 1270) significantly (P<0.05) higher than T 2 and T 3 . The contribution of tilapia, an invasive species, was highest in the Khirai floodplain (36.40%), Hypophthalmichthys molitrix comes next (16.89%) (Akter et al, 2013). While catla (3.07%), bata (0.63%), and kalibaus (0.18%) donated relatively slight to the overall fish production, the carp species rohu and mrigal made only small contributions (6.13% and 8.03%, respectively) (Akter et al, 2013).…”

“…The contribution of tilapia, an invasive species, was highest in the Khirai floodplain (36.40%), Hypophthalmichthys molitrix comes next (16.89%) (Akter et al, 2013). While catla (3.07%), bata (0.63%), and kalibaus (0.18%) donated relatively slight to the overall fish production, the carp species rohu and mrigal made only small contributions (6.13% and 8.03%, respectively) (Akter et al, 2013). The average survival rate (%) species were found T 1 (55) significantly (P<0.05) higher than T 2 (46.67) and T 3 (46.67).…”

“…The average survival rate (%) species were found T 1 (55) significantly (P<0.05) higher than T 2 (46.67) and T 3 (46.67). The general life expectancy was 53.50% and was roughly the same in each of the two farmed wetlands (Akter et al, 2013). It was discovered that the seasonal floodplains' stocked fish had an average survival rate of 46.22±2.12% (Ahmed, 1999).…”

“…species were found T 1 (157.64±0.27) and T 3 (157.79±0.20) statistically significant (P<0.05) than T 2 (138.50±0.30). In Khirai wetland, the typical total amount of feed consumed per hectare was 14931 kg and in Angrail floodplain, it was 4295 kg/ha (Akter et al, 2013). In Khirai floodplain, fertilizers (urea, TSP, and cow dung) were utilised at a rate of 9188 kg per hectare, while in Angrail floodplain, that rate was 2649 kg per hectare (Akter et al, 2013).…”

Measuring the efficiency of collective floodplain aquaculture of Bangladesh using Data Envelopment Analysis

“…Thus, it may also provide directions for the future improvements. Previously, a handful of studies (Mustafa and Brooks, 2009;Akter et al, 2015) compared the performance of various seasonal aquaculture enterprises, including FPAs of this management approach. However, these studies mainly compared aquaculture practices found in different kind of floodplains with different management approaches.…”