النتائج (
الإنجليزية) 3:
[نسخ]نسخ!
Several studies have addressed the estimation of population size fromFisheries-independent surveys using GIS. Nishida and Miyashita (2000) estimatedAge-1 southern bluefin tuna (Thunnus maccoyi) recruitment, usingInformation obtained by omni-scan sonar. In their study, a linear relationshipWas estimated between the strength of the Leeuwin Current into theSurvey area and the average school size as recorded by the sonar. TheyNoted that young southern bluefin tuna schools were transported to theSurvey area depending on the expansion (strength) of the Leeuwin CurrentInto the survey area. Therefore, they suggested that recruitment abundanceShould be estimated by standardization with respect to the expansionStrength the Leeuwin Current. Similarly, Ali et al. (1999) used scientificEcho sounders to investigate fish resource abundance in the South ChinaSea. They used marine GIS software, Marine Explorer (1999), and Itoh itsBuilt-in Kriging procedures were applied to quantify biomass of fish resources.
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