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Calculation of weight on netting with the changes of size and number of mesh for monofilament gill net fishing gear

그물코의 길이와 콧수의 변화에 따른 모노필라멘트 자망 그물감의 중량 계산

  • Park, Seong-Wook (Fisheries System Engineering Division, National Fisheries Research & Development Institute)
  • 박성욱 (국립수산과학원 시스템공학과)
  • Received : 2012.08.06
  • Accepted : 2012.09.24
  • Published : 2012.11.30

Abstract

A net-assembling company for gill net fishing gears makes a design based on the size of nets provided and determines floats, types of weights, and numbers. In addition, through the accurate examination of net weights in the process of fishing gear designing, it can prevent an excessive use of designing costs. The weight of twine can be easily calculated by its thickness differences, but the weight of netting has errors to be calibrated since the weight of netting is not changing exponentially with the changes of number and size of meshes. This study aims to suggest and empirically analyze the methods for estimating the weights of netting in accordance with the changes of number, size and thickness of meshes for a sound management of netting and net-assembling companies. Results indicated that the method using the knots and legs of netting was not practically usable because the errors were increased as the number of mesh increased. However, the method using netting area shown its usage potentiality with the calibration of the increasing ratio of mesh numbers.

Acknowledgement

Grant : 생분해성 수산자재의 응용 기술개발

Supported by : 국립수산과학원

References

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