• Title/Summary/Keyword: 자망어업

Search Result 59, Processing Time 0.046 seconds

SELECT 모델에 의한 전어 선자망의 망목선택성 해석

  • 박창두;정의철;신종근;안희춘
    • Proceedings of the Korean Society of Fisheries Technology Conference
    • /
    • 2002.10a
    • /
    • pp.39-40
    • /
    • 2002

  • 전어는 한국 연안에 널리 분포하고 있으며, 주로 남해안과 동해안에서 어획이 이루어지고 있다. 전어의 어획 방법은 1978년까지는 주로 자망에 의하여 어획되었으나, 최근에는 소형 선망에 의한 어획량이 증가하고 있으며, 이것은 소수의 소형 선망에 전어가 대량으로 어획되는 영향에 기인한다. 그러나, 자망은 다른 어구에 비하여 어구의 비용이 적게 들고 소형 어선으로도 조업이 가능하므로 여전히 많은 수의 자망 어선이 전어가 연안으로 회유하여 오는 봄과 가을에는 선자망을 사용하여 조업을 행하고 있다. (중략)

  • PDF

Analysis of the Generation Amount of Abandoned Marine Waste from Ships in the Northwest Sea of Jeju Island (제주 북서해역 선박기인 해양폐기물 발생량 분석)

  • Kim, Byung-Yeob;Joo, Hye-Min;Lee, Chang-Heon;Kim, Kwang-Il
    • Journal of the Korean Society of Marine Environment & Safety
    • /
    • v.27 no.1
    • /
    • pp.81-87
    • /
    • 2021

  • Many merchant ships sail in the waters surrounding Jeju Island and many fishing vessels catch fish using gill nets, trolling lines, and so on. Meanwhile, marine waste has collected in the coastal waters of Jeju Island. However, there has been little research on the collection of marine waste in coastal waters. In this study, marine waste deposited in Jeju Island's northwest sea was collected using Jeju National University's training ship, and related vessels were analyzed for each gear type. According to the results, most coastal waters had abandoned fishing grounds, which were from fishing vessels, and a large proportion of them was gill net and trap fishing gear. To analyze how much marine waste is accumulating in a certain area and ship's stay time, we use automatic identification system (AIS) data to extract the time spent in the target sea, and the amount of marine waste per hour was analyzed in a unit distance of 1 ㎢. The average amount of marine waste generated per hour in the unit area was found to be 0.94 kg for gillnet fishing gear, 3.49 kg for trap fishing gear, 0.10 kg for trawl fishing gear, 0.11 kg for longline fishing gear, and 0.02 kg for other fishing gear.

  • https://doi.org/10.7837/kosomes.2021.27.1.081 인용 PDF KSCI