THAILAND CASE STUDIES ON OTTERBOARD TRAWLERS AND ANCHOVY PURSEINERS Ruangrai Tokrisna Department of Agricultural and Resource Economics Kasetsart University, Bangkok, Thailand ECOST Can Tho Meeting 25 – 28 September 2007

Share of total catches, 2004

Share of marine capture form the Gulf of Thailand Total catches from GOT = 1.806 million tons

Share of important pelagic catches from the Gulf of Thailand Total pelagic catches from GOT = 0.696 million tons

Fishing fleets in the Gulf of Thailand (% of total catches from the Gulf of Thailand, 1.806 million tons)

Fishing gears in trawl fleet (% of total catches from trawl fleet in the Gulf of Thailand, 1.035 million tons )

Fishing gears in purse seine fleet (% of total catches from purse seine fleet in the Gulf of Thailand, = 0.595 million tons )

Case studies FLEET GEAR SPECIES ECOLOGY ECONOMICS SOCIOLOGY Trawler Otter board trawl •Trash fish •Otter board trawl •Change in social structure   (Pair trawl) •Demersal being 25% catches = 45% Large trawlers earned (Beam trawl) of GOT catches high income from past •Catches of juveniles •Trawler fleet = 30% fishing and had alternatives as trash fish of total fishing other than fishing. vessels Small trawlers suffered from resource degradation. = 20% of total Purseiner Anchovy purseine •Anchovy • 7% of GOT catches • Impact on small scale (Purseine) •Pelagic or 19% of total pelagic purseine = 9% of coastal fisheries. [Anchovy falling GOT catches total fishing vessels net] •Using fine mesh size while total purseiner [Anchovy lift net] thus catching juveniles is 10%. •Fish for export, conflict in fishery resource utilization.

Seasonality (metric tons)

Volumes and values during last decade

Number of registered fishing vessels

Number of selected registered fishing vessel in Chumporn

Fish meal from trash fish Number of Plants (plants) 95 Raw materials   trash fish (mill.tons) 0.772 remained 0.672 others 0.113 Production 0.424 Value (mill. ฿) 8,609 Price of fish meal (฿/kg) 22.04 Conversion ratio (thou.tons) 4 - 4.5 Price of trash fish 3.77 Operating cost 5.22 - 6.22 Export volume 0.011 Export value 222 Import volume 0.010 Import value 247

Utilization of anchovies

Processed anchovies Item Unit Dried Boiled-dried Mixed Conversion fresh/processed 3:1 4:1 Raw material ฿/kg processed 21 28 30 Processing 7 9 78 Price 40 120 Profit 2 3 12 Value added 90

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