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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/39541

Title: A Comparison of Fishing efficiencies of the Mechanic and Computer Control Panel Squid-Jigging Machines in the Northwest Pacific Ocean
Authors: Ming-Anne Lee;Ten-Gen Chang;Chun-Ming Lin;Kuo-Tien Lee
Contributors: 國立臺灣海洋大學:環境生物與漁業科學學系
Date: 1997-03
Issue Date: 2016-12-16T08:36:28Z
Publisher: 臺灣水產學會刊
Abstract: Abstract:To study the functional development of retinal structure in thornfish(Teraponjarbua),histological examinations were carried out to measure the visual acuity.Density and the ellipsoidal heights of cone cells were measured for the estimateof visual acuity.Eye diameters and lens diameters were also measured.The results showed that initial rapid allometric growth of eye diameters andlens diameters accompanying with a sharp decreasing cone density and histologicalvisual acuity are significant during the early stages(larval juvenile stages,standardlength:10.2-30.0 mm).The ellipsoidal heights of single cones did not significantlyincrease when they grew to 74.4 mm.The results obtained in the presentreport concluded that the older thornfish own the smaller visual angle,i.e.thebetter visual acuity.The morphogenetic changes of visual development between the early stagesand the adult stages suggests that thornfish adopt the better visual acuity to adapttheir different habitats during their different growing stages.
Relation: 24(1), pp.1-9
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/39541
Appears in Collections:[環境生物與漁業科學學系] 期刊論文

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