| 英文摘要 |
This report describes historical changes of production in Taiwanese larval fisheries, and summarizes the catch result of 2009’s practices.? In the past year, the fishery produced 579 t with a value of 94,000,000 dollars.? Breaking the catches into three sea areas, it turns out that 54 % found in SW area, and 23 % for NE and NW.? We also observed the practices in 2010, and compared those outcomes with the last year.? In the spring season, the fishing started normally in the NE, but the fish recruited sparsely, and the situation turned fisheries into fewer spring productions in 2010 as compare to 2009.? In the SW, the catch was found pretty good, that triple the value of last year.? In the autumn season, the situations reversed between NE and SW; catches was 2.5 times more than the last year in NE, however the catch went to zero in the SW due to Fanatic typhoon’s aftermath.? Quantity and species composition due to mixed mis-catch hold similarity to the past.? Overall, the resources were positioned at low population level in the recent years as indicated by historical catch data trend.? In average, annual production is estimated to be 150 t, which is much lower than 540 t found around 20 years ago.? Based on all available data, we suggest to adjust the TAC to 350 t in order to fulfill a reasonable management, and awaiting for bouncing back to higher resource level of 550 t. |