| 英文摘要 |
Occurrences and distribution patterns of flying fish egg resource, as well as its relationship with the catch per unit effort (CPUE) of the fishery and the environmental factors were examined based on the logbook collected in coastal waters of Taiwan during Apr. 2007-July 2009 period. Result indicated that the major fishing season of this fishery was on June, when the CPUE was also the highest. The fishing season although slightly different among years, it generally started on April from the northern coast of Taiwan, and extended to the northeastern waters during the peak spawing season on June, and then, retreated back to the north before the fishing season ended. The efforts input in the fishery and the fishing grounds also vary by years depending on the social-economical influences, such as fish and fuel prices. The small fishing vessel also has higher CPUE when compared with larger ones. The spawning activity of flying fish occurred mainly in waters with sea surface temperature between 26 and 29 ℃, and with chlorophyll-a concentration between 0.1 to 0.5 mg/m3. The high concentration of eggs in these waters may closely relate to the local upwelling, and/or the frontal area caused by Kuroshio Current and China Coastal Current of the region, and may deserve further studies. |
