Ubair Nisar

The paper adopts the conventional data envelopment analysis (DEA) and bootstrap procedure to analyze the technical efficiency, while tobit regression is applied to identify the factors affecting efficiencies of exotic fish polyculture in Jammu and Kashmir (India). According to the statistical analysis of the variables utilized, there was a lot of variability in the inputs being used by the farmers, with the most variation being in the lime input. The DEA estimated technical efficiency for the sample farms in Jammu and Kashmir is 0.9771 and 0.9741, respectively, with least technical inefficiency of 3%. The bias-corrected (bootstrapped) technical efficiencies found were slightly lower than the ones estimated by conventional DEA. Mean allocative and cost efficiencies for sample farms in the Jammu region were 92% and 75%, respectively, and 84% and 74%, respectively, for farmers in the Kashmir region. Farming experience, age, and education have favorable impacts on technical efficiency o...

China has been the largest producer of fish in the world since 1989 and became the largest consumer of fish and fishery products recently. With increase in China’s demand and preference for shellfishes and value-added fish products, India sees China as the second largest export destination after the US. This study analyzed the status, export performance and competitiveness of Indian fish export to China based on data (2000-2018) from trademap.org and UNCOMTRADE statistical database. Compound Growth Rate (CGR) revealed that the seafood export grew at an annual rate of 9.68% in terms of value with instability of 0.24 from 2000-2018. The Simpson Index of Diversity (SID) to the China revealed that the index values remained highest all throughout the years as compared to USA and the rest of the world. The Unit Value Realization (UVR) was found highest in live fishes ($34.92/kg) followed by fresh chilled fish ($7.19/kg), crustaceans ($5.97/kg) and others for 2018. Commodity wise RCA revea...

Biofloc technology (BFT) is gaining traction as a strategic aquaculture tool for boosting feed conversions, biosecurity, and wastewater recycling. The significant aspect of BFT is aquaculture with highest stocking density and minimal water exchange. It not only improves the water quality of a system by removing inorganic nitrogen from wastewater but also serves as a suitable feed supplement and probiotic source for cultured species. This technology is commonly used for shrimp and tilapia culture and can be used for both semi-intensive and intensive culture systems. Biofloc, when combined with formulated diets, forms a balanced food chain that improves growth performance. Nutrients in this system are continuously recycled and reused and form an efficient alternative system in aquaculture. In addition to the reduction in water exchange, it is also considered as a bio-security measure, since it prevents entry of disease from outside sources. Aquamimicry is an innovative concept that si...

The study aimed to highlight the profitability and production function analysis of Penaeus monodon and Litopenaeus vannamei in intensified shrimp farms in Gujarat (India). Two hundred and twenty (220) shrimp farm households were used to identify (principal component and cluster analyses) 8 clusters of management practices that reflected various scales of production intensity ranging from 0–2999 kg/ha/crop to 9000kg/ha/crop and above for both the species. The Cobb-Douglas production function, which relates production output to several independent input variables, was used to determine productivity. The budgeting analysis for both the species showed that more intensively managed farms performed more than the less intensive farm. Empirical results show feed as most significant input for Penaeus monodon and Litopenaeus vannamei seed and labor that affected production. Average net returns/ha/year for Penaeus monodon was $16313.13 and for Litopenaeus vannamei $41640.99. Aquaculture exhibi...

Objective : The comparison of the socio-economic status of fishers and primary producers of the coastal India would tried to find out the potential gaps and suggested the measures to be taken for improving their living standards. Methods : The NSSO-68 th round unit level data of fishers and primary producers for all the coastal states and UTs except Goa and Lakshadweep Islands was retrieved and used in the study. The results are represented with frequency tables and bar diagrams. The Z test to compare means and population proportions were used to test for its significant difference. Findings : The results revealed that the parity is existed between the fishers and primary producers with respect to their family size, religion, social group, training, subsidiary activity, employment status, land ownership, savings account and membership with associations. However, there is no parity in the literacy, MGNREG beneficiaries, land utilising for cultivation and average monthly expenditure. ...

The status of data-limited tuna fishery stocks in India has been tested using the latest and most advanced computerized methods, CMSY and BSM. Five tuna fish stocks from both the Eastern and Western Indian Ocean were assessed using both catch and catch per unit effort (CPUE) details available from 1990 to 2015. Both methods help to calculate the maximum sustainable yield (MSY) and exploitation of MSY relative to biomass (B/BMSY). The results of maximum intrinsic rate (r) and carrying capacity are also estimated. The results revealed that all tuna stocks in both the regions were overfished, with one, the longtail tuna (Thunnus tonggol) in the Western Indian Ocean strongly overfished (B/BMSY = 0.44). Such observations, although still preliminary since the techniques used to produce them are relatively new, often associated with the situation and exploitation of all the stock in question, making the CMSY and BSM methods promising for stock assessment in data-deficit situations. The stu...