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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/44595

Title: Monthly variation of larval anchovy fishery in I-lan bay, NE Taiwan, with an inference on optimal fishing season
Authors: Tai-Sheng Chiu;Shuh-Sen Young;Chih-Shin Chen
Contributors: 國立臺灣海洋大學:海洋事務與資源管理研究所
Keywords: Distribution;Abundance;Landing;Price;Accidental Catch
Date: 1997-12
Issue Date: 2017-11-23T03:24:29Z
Publisher: 臺灣水產學會刊
Abstract: abstract:Oceanographic conditions and biomass distribution characteristics in thewaters of northeastern Taiwan,where the Kuroshio Current meets the East ChinaSea,were investigated using hydroacoustic survey data,CTD(Conductivity,Temperature and Depth)data and NOAA's AVHRR infrared images.In thisregion,a cold eddy with low temperature and high salinity was found near theisland of Peng-Chia Yu.In the summers of 1994 and 1995,the sea surface temperature isotherms(gradients)were unconducted.The biomass was low and decreasedwith depth in the center of the eddy.Higher biomass concentrations were found intwo nearby areas:the waters near the periphery of the cold eddy and the coastalwaters of northern Taiwan.The former had low temperature and high salinity,while the latter had high temperature and low salinity.In mid-April,1995,the seasurface temperature isotherms(gradients)were very complex.A high biomass areawas found in the waters where the warm Taiwan current mixes with continentalcoastal water of low temperature and low salinity,while low biomass areas werefound in the center of the cold eddy(low temperature and high salinity),and thefront of the Kuroshio.Current(high temperature and high salinity).Since acousticsurvey data(Sv)and satellite image data(SST)have an important spatial component,a Geographic Information System(GIS)was used to display and analyzesome of these data.
Relation: 24(4) pp.273-282
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/44595
Appears in Collections:[海洋事務與資源管理研究所] 期刊論文

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