Abstract
Sea cage farming has paved way for intensive and commercial-level production of finfish in the coastal areas of the country. Since its initiation in 2007 by ICAR-Central Marine Fisheries Research Institute (CMFRI), notable strides have been made in terms of innovations in cage and mooring system design and fabrication. Demonstrations of cage farming pompano (Trachinotus mookalee) 10 25 8 0.8 90 1:1.5 (artificial feed) 2.0 18 260 400 The institute has identified and geo-referenced 146 potential cage farming sites (Total area: 47384 Ha) along the Indian coastline within 10 kms with a production potential of 2.13 million tonnes/year. A well-planned and scaled-up programme to commercialize sea-cage farming will go a long way in realising the Blue Economy potential in India. Furthermore, policy initiatives that open marine areas for sea cage farming with regulatory guidance and adequate social security coverage can catalyse such an initiative. Establishing end-to-end value chains and addressing stakeholders' concerns following sustainability principles are also essential. The subsequent section provides a snapshot on farming of important finfish species, detailing their yield potential, unit cost, and farmgate price realized. Prepared by: AINP-Mariculture, ICAR-CMFRI Published by: Dr. A. Gopalakrishnan Director, ICAR-Central Marine Fisheries Research Institute, Kochi-682 018, Kerala, India Authors: Boby Ignatius, Ritesh Ranjan, Sekar Megarajan, Biji Xavier, Anikuttan K.K., Tamilmani G., Sakthivel M., Ambarish P. Gop, Santhosh B., Anil M.K., Surya S., Rajesh N., P.P. Suresh Babu, Anuraj A., Suresh V.V.R., Shinoj P., Shubhadeep Ghosh, Gopalakrishnan A. Design: Abhilash P.R., ICAR-CMFRI, Kochi (per ha.) Production (in tonnes) in Farmed Marine Finfish Species in Brief Sl No. | Species | Stocking Size -Total length (cm) | Stocking Density (no./m 3 ) | Culture Duration (months) | Size at Harvest (kg) | Survival (%) | Food Conversion Ratio | Production (in tonnes) Cage | Yield (kg/m 3 ) | Prod. Cost (Rs/kg) | Farm-gate Price (Rs/kg) Open Sea Cage -Circular (6m diameter, 4m depth, volume 114m 3 ) 1. | Cobia (Rachycentron canadum) | 15 | 9.0 | 8 | 3.0 | 90 | 1:5 (low value fish) | 3.0 | 27 | 250 | 400 2. | Indian pompano (Trachinotus mookalee) | 10 | 25 | 8 | 0.8 | 90 | 1:1.5 (artificial feed) | 2.0 | 18 | 260 | 400 3. | Silver pompano (Trachinotus blochii) | 10 | 25 | 8 | 0.6 | 90 | 1:1.5 (artificial feed) | 1.75 | 12 | 250 | 400 4. | Grouper (Epinephelus coioides) | 10 | 25 | 10 | 1.0 | 80 | 1:5 (low value fish) | 2.0 | 20 | 210 | 400 5. | Snapper (Lutjanus johnii) | 10 | 25 | 8 | 0.8 | 80 | 1:5 (low value fish) | 2 | 16 | 210 | 400 6. Maze rabbitfish (Siganus vermiculatus) | 10 | 35 | 10 | 0.4 | 90 | 1:1.5 (artificial feed) | 1.5 | 12.5 | 180 | 400 7. | Seabass | 1:1.5 (Lates calcarifer) | 10 | 25 | 8 | 1.0 | 90 | (artificial feed) 1:4 | 2.5 | 22 | 250 | 500 (low value fish) Coastal Pond Culture (1 ha.) (Salinity: 15-32 ppt) 1. | Indian pompano (Trachinotus mookalee) | 10 | 1.5 | 11 | 0.8 | 80 | 1:1.5 (artificial feed) | 9.5 | 0.95 | 230 | 400 2. | Silver pompano (Trachinotus blochii)) | 10 | 1.5 | 6 | 0.35 | 80 | 1:1.5 (artificial feed) | 4.2 | 0.45 | 230 | 400 3. | Grouper (Epinephelus coioides) | 10 | 1.0 | 12 | 0.85 | 80 | 1:5 (low value fish) | 6.4 | 0.64 | 210 | 400 4. | Maze rabbitfish (Siganus vermiculatus) | 10 | 3 | 10 | 0.4 | 90 | 1:1.5 (artificial feed)
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