Evaluating growth, production and economics of a new candidate species Labeo bata in cages: A regional model for table fish production in floodplain wetlands of North East India

Debnath, Dipesh; Das, Basanta Kumar; Yengkokpam, Sona; Das, P. C.; Yadav, Anil Kumar; Sharma, Niti; Borah, Simanku; Ray, Bipul Chandra; Sarkar, Uttam Kumar; Bhattacharjya, B. K.

doi:10.1016/j.aquaculture.2021.737344

Cited by 12 publications

(14 citation statements)

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“…The feed conversion ratio (FCR) is calculated as FCR = dry feed supplied (g)/wet weight gain (g), where dry feed supplied is the total amount of feed given, not corrected for feed loss [36]. The protein efficiency ratio (PER) is calculated using the formula, PER = body weight gain (wet weight in grams)/crude protein fed (%) [31]. The coefficient of variation (CV) was calculated using the formula, CV = standard deviation of fish weight / average weight (g).…”

Section: Growth Analysismentioning

confidence: 99%

“…Fish yield per unit cost (YPC) was calculated as YPC (kg USD −1 ) = gross fish yield (kg)/total cost (USD). Similarly, cost per unit yield (CPY) was calculated as CPY (USD kg −1 ) = total cost (USD)/gross fish yield (kg), following Debnath et al [31].…”

Section: Economic Analysismentioning

confidence: 99%

“…The economics of cultured species is generally driven by end-user preference and market demand [28]. Labeo bata commonly known as bata and locally known as bhangon in Assam is among the most consumer preferred high-value minor carps [16,[29][30][31]. Datta et al [32] reported that L. bata in the size range of 15-150 g is marketable and >50 g-sized fish fetch a high market price in India [31].…”

Section: Introductionmentioning

confidence: 99%

“…bata is deemed as a potential species for rearing in enclosures in inland open water bodies of India [31]. Considering its demand in eastern and north-eastern India, feasibility studies of its culture have been carried out in cages in floodplain wetlands [16,31] and reservoirs [23] of the country. However, standardization of its pen culture practice in floodplain wetlands has not been attempted.…”

Section: Introductionmentioning

confidence: 99%

“…However, standardization of its pen culture practice in floodplain wetlands has not been attempted. Although listed under the 'Least Concern' IUCN category [33], this species is declared endangered in Bangladesh [31], with severe population decline witnessed from natural water bodies [34]. The development of economically viable pen culture protocols for this important and prized small indigenous fish (SIF) in floodplain wetlands will help in reducing fishing pressure on its natural stocks.…”

Section: Introductionmentioning

confidence: 99%

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Standardizing Pen Culture of Small Indigenous Fish Labeo bata in the Tropical Floodplain Wetland of the North Eastern Region, India: A Step towards Sustainable Fisheries Management

et al. 2023

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Labeo bata fry were reared in high-density polyethylene (HDPE) pens at different stocking densities to determine growth, survival, feed utilization efficiency and economics in Borkona beel, Barpeta, Assam. Pens (500 m2 each) were stocked with fry at four stocking densities, 3 (SD3), 5 (SD5), 7 (SD7) and 9 (SD9) no. m−2 in triplicates. Feeding was performed twice a day at a rate of 3–5% body weight with floating pelleted feed containing 28% crude protein. Fish grew from 2.38 ± 0.30 g to 82.78 ± 3.18, 75.94 ± 0.89, 71.94 ± 0.89 and 61.81 ± 3.35 g at stocking densities of 3, 5, 7 and 9 no. m−2, respectively. Weight gain per cent ranged from 2491.85 ± 140.56 to 3371.33 ± 133.16 and specific growth rate from 1.41 ± 0.02 to 1.55 ± 0.02, both of which decreased with increasing stocking density. The net and gross yields increased with increasing stocking density and were highest at SD9. The benefit-cost ratio was maximum at SD7 (1.42), followed by SD9 (1.41). Post-pen culture, the monthly income of fishers increased by 6.10% (SD3) to 40.50% (SD9). Significant differences (p > 0.05) in water quality parameters were not observed between treatments (inside pens) and reference site (outside pen at 10 m distance). Weight gain exhibited a significant positive correlation with temperature (r = 0.92; p = 0.029) and alkalinity (r = 0.95; p = 0.014). The present study can provide impetus towards species diversification in pen enclosures, income enhancement of small-scale wetland fishers and sustainable ecosystem-based floodplain wetland fisheries management.

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Section: Growth Analysismentioning

confidence: 99%

Section: Economic Analysismentioning

confidence: 99%