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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.

An Assessment on Economic Impact of Growth Over Fishing of Commercially Important Marine Ariids Along Mumbai, Northwest Coast of India.