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北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University >
第58号 第1/2号 >

ソウハチ, ババガレイ, アカガレイの脳外形の比較について

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Title: ソウハチ, ババガレイ, アカガレイの脳外形の比較について
Other Titles: A Comparative Study of the Brains in Pointhead Flounder Hippoglossoides pinetorum, Slime Flounder Microstomus achne, and Red Halibut Hippoglossoides dubius
Authors: 松田, 圭史1 Browse this author
鳥澤, 眞介2 Browse this author
平石, 智徳3 Browse this author →KAKEN DB
山本, 勝太郎4 Browse this author
Authors(alt): Matsuda, Keishi1
Torisawa, Shinsuke2
Hiraishi, Tomonori3
Yamamoto, Katsutaro4
Keywords: Brain
Tectum opticum
Plaice
Habit
Vision
Issue Date: 30-May-2008
Publisher: 北海道大学大学院水産科学研究院
Journal Title: 北海道大学水産科学研究彙報
Journal Title(alt): BULLETIN OF FISHERIES SCIENCES, HOKKAIDO UNIVERSITY
Volume: 58
Issue: 1-2
Start Page: 7
End Page: 10
Abstract: This study examined rational behavior-control method of pointhead flounder (Cleisthenes herzensteini), slime flounder (Microstomus achne), and red halibut (Hippoglossoides dubius) based on a morphological study of their brains. The specimens were sacrificed and the brains removed. Based on brain morphology, we classified these species as of the ‘plaice type’. These species have a large tectum opticum, which suggests that vision is the most important sense governing behavior,based on external stimulation. The olfactory bulb was more developed in the pointhead flounder than the slime flounder and the red halibut, implying the importance of olfaction in the pointhead flounder. We postulate that form vision is more important than motion vision based on the large cerebellum in these species. We conclude that these species have superior vision, and postulate that their visual acuity is important in their behavior. Therefore, we hypothesize that the form of fishing gear is important, and behaviorcontrol techniques that use visual stimuli should be effective in fishing targeting the pointhead flounder, slime flounder, and red halibut.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/33080
Appears in Collections:北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University > 第58号 第1/2号

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