Ramkumar, S and Jaiswar, A K and Ranjith, L and Chakraborty, S K and Purushottama, G B and Deshmukh, V D and Vinod, K and George, Rani Mary (2016) An Assessment on Economic Impact of Growth Over Fishing of Commercially Important Marine Ariids Along Mumbai, Northwest Coast of India. Current World Environment, 11 (2). pp. 531-536.
Purushottama_Current World Environment_11(2)_531-536.pdf
The economic assessment on juvenile landings of four dominant marine catfishes at New Ferry Wharf (NFW) landing centre, Mumbai, Northwest coast of India was carried out during January to December, 2013. The dominant catfishes viz. Nemapteryx caelata (19.7 %), Plicofollis dussumieri (21.5 %), P. tenuispinis (24.8 %) and Osteogeneiosus militaris (27.5 %) together contributing 93% of total marine catfish landings of the state. Among four species, the juvenile landings of N. caelata contribute maximum (93.17 %) followed by P. dussumieri (57.14 %), O. militaris (36.11 %) and P. tenuispinis (21.43 %) with the maximum landing during November to March . The bioeconomic model reveals that if juveniles are allowed to grow up to length at first maturity (Lm); an estimated total annual economic gain will be Rs. 13.15 crores with an estimated biomass gain of 1222 t per annum. The estimated total annual biomass is increased by 2.07 times with an increase in additional revenue by 3.7 times would have been realised. The results of present study suggest that sustainable harvest of these resources would have been yielded maximum economic return to the fishers. With the help of stakeholders participatory approach, management measures such as strict mesh size regulation, effort restriction on bottom trawl up to 50 m depth and awareness campign on catching juveniles and adult in particular to the oral incubated male ariids, would have been implemented during November to March to avoid growth overfishing.
|Uncontrolled Keywords:||Marine catfish; Trawl bycatch; Juvenile fishing; Economic loss; Growth overfishing|
|Subjects:||Marine Fisheries > Marine Fishing
Marine Fisheries > Conservation
Fishery Technology > Fishing
|Depositing User:||Arun Surendran|
|Date Deposited:||03 Feb 2017 05:48|
|Last Modified:||03 Feb 2017 05:48|
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