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Catching efficiency of the biodegradable gill net for Pacific herring (Clupea pallasii)

생분해성 청어 (Clupea pallasii) 자망의 어획성능

  • Received : 2013.10.18
  • Accepted : 2013.11.08
  • Published : 2013.11.30

Abstract

Physical characteristics of PA (Polyamide) gill net and biodegradable gill net made by PBS (Polybutylene succinate) (mesh size 63mm, mesh thickness number 2, 2.5, 3) were analyzed to investigate catching efficiency of the biodegradable gill net for Pacific herring. Total 11 numbers of catching efficiency tests were carried out using commercial fishing vessel at Imwon port in Kangwon province from May to June 2013. The amount of catches were 1,535.7kg (18 species) through the catching efficiency tests and it is expected that the practicalization of biodegradable gillnet is possible because there is no difference for catches between PA gillnet and PBS gillnet. Catches of herring according to the thickness of net twine was the highest at No.2 and the thicker net twine tends to decrease the catches.

Keywords

Polybutylene succinate;Biodegradable gillnet;PA gillnet;Catching efficiency

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  3. Effects of steam heat treatment conditions on the swelling and physical properties of PBS (polybutylene succinate) copolymer monofilament gill net vol.50, pp.3, 2014, https://doi.org/10.3796/KSFT.2014.50.3.274
  4. Development of the submerged heat treatment machine for PBSAT(polybutylene succinate adipate–co–terephthalate) monofilament nets and its efficiency vol.51, pp.1, 2015, https://doi.org/10.3796/KSFT.2015.51.1.094
  5. Genetic Distances and Variations of Three Clupeid Species Determined by PCR Technique vol.18, pp.4, 2014, https://doi.org/10.12717/DR.2014.18.4.287

Acknowledgement

Supported by : 국립수산과학원