Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Characteristics by the Behaviour and Habits of the Common Octopus (Octopus minor)

낙지 (Octopus minor)의 습성 및 행동 특성

  • CHANG Duk Jong (Department of Fisheries Science and Technology, Yosu National University) ;
  • KIM Dae An (Department of Fisheries Science and Technology, Yosu National University)
  • 장덕종 (여수대학교 수산공학과) ;
  • 김대안 (여수대학교 수산공학과)
  • Published : 2003.12.01
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Abstract

In order to develop a logical method for using selective fishing gear, the behaviour and habits of the aquatic animals must be investigated. However, until now, little national research has been carried out to investigate the behaviour and habits of the common octopus (Octopus minor). The purpose of this study henceforth, is to compile necessary behavioral data to develop fishing gear to catch the common octopus. Behaviour and habits of the common octopus were observed while breeding in a water tank from February to May, 2003. The feeding habits of common octopus are more vigorous at night than in the daytime. The common octopus feeds on 1-4 bait crabs per day and consume each crab in 40-50 min. The sensory organs of the common octopus are more influenced by the sense of touch and smell, than by vision. Using live bait is more effective and advantageous than using dead bait, as the common octopus responded more to live bait. The hiding habits of the common octopus were very intensive, as they hid around all the shelters that were provided in this study. They demonstrated territorial behavior and struggled to maintain their sphere of influence. In addition, out of the various colors for shelters and bait supplied, the common octopus preferred light colors.

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References

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