• Title, Summary, Keyword: fishing information

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Fishing Management Using Automatic Fishing Information Recording System of Fishing Vessel (어선조업정보 자동기록장비를 이용한 어업관리)

  • LIM Dong-Kyu;SHIN Hyeong-Il;LEE Dae-Jae;KIM Hyung-suk;KIM Seok-Jae;LEE Yoo-Won
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.38 no.1
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    • pp.70-77
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    • 2005
  • This paper studied the feasibility for utilization of the automatic fishing information recording system, which stores and manages navigational information and fish catch results of a fishing vessel in a portable storing device, in order to help promote the systematic management of fishing information by offshore and coastal fishing vessels. Position accuracy was within 10 meters on the position accuracy experiment using GPS module. Characteristics of navigation according to the navigation, anchoring and fishing operation showed the difference of navigation track information for GPS, and fishing possibility of fishing boat could be estimated through the analysis as the utilization result of system for the large pair trawl and large purse seiners. In particular, it is impossible to provide false positional information by arbitrarily operating the system, and it may be possible to present the factual results of fish catch by date, fishing ground, and fish species by comparing the fishing information with fish catch. Such contents are considered to be useful as basic data for the management of fisheries resources.

Establishing of Fishing Bank GIS System (어장도 지리정보시스템 구축)

  • Kim, Jin-Kwang;Choi, Kap-Jun;Lee, Young-Jo;Song, Seung-Hyun;Kim, Jang-Ryul
    • Journal of Korean Society for Geospatial Information Science
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    • v.18 no.2
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    • pp.47-54
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    • 2010
  • Today, administration management of fishing industry is formed by paper documents. So, it is suffered damage and loss concern by the long-term storage. when the new informations is renewed, much of manpower and time are wasted also. In addition, it has caused confusion to by used coordinate system which is not been consistent. To build a national standardized information system of fishing banks, in this study, fishing map DB and system based on GIS is constructed for fishery right area of JeollaNamdo (Mokpo city and other 14 counties) which has 55% of fishing permissions of Korea. Then administration management of fishing industry is constructed computerization for the user that business processing and for fishermen to improve their convenience. Also, It will be possible to link another system.

A Survey on the Fishery Perception and Recreation Fishing Demand Level of Coastal Waters Ranch with the Case of Tongyeong City's Bijin-do Yongcho-do, Juk-do (연안바다목장의 어업 인식도 및 유어낚시 수요도 조사: 통영시 비진도·용초도·죽도 사례를 중심으로)

  • Kang, Seok-Kyu
    • The Journal of Fisheries Business Administration
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    • v.48 no.1
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    • pp.73-87
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    • 2017
  • The purpose of this study is to investigate the fishery perception and recreation fishing demand level of coastal waters ranch with the case in Tongyeong city's Bijin-do Yongcho-do, Juk-do. The study conducts a survey of 27 fishermen and 113 recreation fishing tourists from September 26 to November 21, 2016. The major results of this study are as follows. First, the survey of fishery perception level suggests that the increase of fishery resources by Tongyeong-si coastal waters ranch project contributes to the rising income of fishermen, decreased fishing cost, and increased the number of tourists. Second, the survey of recreation fishing tourists's demand level suggests that a beautiful view, fish populations, kindness of residents, fishing point information, charter information, and the convenience of transportation are highly praised and highly regarded. However, links to nearby tourism, lodging facilities, and food information that can increase the income of fishermen is poorly praised. Therefore, this study suggests that a careful marine policy with fishery resource creation should be followed for marine fishing village tourism consumer's benefits in order to increase fishing village's income.

The fishing grounds and frequency of appearance of Chinese fishing vessels obtained by analyzing AIS data in the south coast of Jeju Island (AIS data 분석에 의한 제주도 남해안에서의 중국 어선들의 조업어장과 출현빈도)

  • KIM, Kwang-il;LEE, Chang-heun;AHN, Jang-young
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.55 no.4
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    • pp.356-362
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    • 2019
  • We collected AIS information on fishing vessels operating near Jeju Island, and analyzed appearance density of the Chinese fishing vessels and inferred the movements of the fishing grounds. AIS information was received from October 16, 2016 to October 16, 2017 and stored on a hard disk through a program called AisDecoder. Unauthorized fishing vessels within the Exclusive Fisheries Agreement Zone (EFAZ) operated near the EFAZ boundary, and the frequency of appearance of fishing vessels were high in the middle waters of Korea and Japan, 252 and 250 fishing zones. Chinese fishing vessels authorized to enter appeared scattered outside the Prohibiting Fishing Zone of the Large Trawlers (PFZLT), and the closer they were to the PFZLT boundary, the higher the appearance density. And the appearance of Chinese fishing vessels with a speed from 0 to 3 knots was mostly outside the EFAZ, showing high density in the waters close to the boundary between Korea and Japan. On the other hand, within the EFAZ, the frequency of appearance of Chinese fishing vessels was also low and scattered. The appearance of Chinese fishing vessels with a speed from 3 to 5 knots mostly shows some variability within the EFAZ, but the frequency of appearance was high and the density was high. The seasonal appearance of Chinese fishing vessels in the waters south of Jeju Island appeared in the southwest in the autumn and then moved south and southeast of Jeju Island in the winter, and in the spring and summer. They were considered going to other fishing grounds without fishing in the waters south of Jeju Island.

The Construction of the Fishing-vessel Monitoring System and the Protocol Analysis for the Calling of Location Requirement Using VHF-DSC (VHF-DSC 위치요청 프로토콜 분석과 어선관제시스템 구축)

  • Kim, Jeong-nyun
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.929-932
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    • 2013
  • In preperation for the compulsory installation of VHF(Very High Frequency) wireless equipment and fishing vessel automatic identification system according to the revision of "The Ships Safety Act" and "Fishing Vessel act", Fishery Information & Communication Department of National Federation of Fisheries Cooperatives is building VHF communication network and automatic identification system for fishing vessel monitoring. This study suggests the protocol analysis for the calling of location requirement using DSC(Digital Selective Calling) function and show best way for fishing vessel automatic identification system. Also, it suggest way to realize fishing vessel monitoring system.

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Buoy-launched Terminal Equipment and Ship-launched Gateway Equipment Based on LoRa for Identification of Fishing Gear (LoRa 기반 어구 식별용 부이 장착 단말 및 어선용 게이트웨이)

  • Kwak, Jae-Min;Lee, Seong-Real
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.22 no.5
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    • pp.779-786
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    • 2018
  • Ministry of oceans and Fisheries declared action plan for the electric fishing gear using real name in order to prevent overusing the fishing gear and to reduce discarded fishing gear. It is needed for a technique that can efficiently transmit the information including the type and location of the fishing gear and the user's real name to the fishing boat and the control center using IoT-based communication. In this paper, we propose the buoy-launched terminal equipment and ship-launched gateway equipment based on LoRa technology for effectively executing the electric fishing gear using real name. We design and fabricate to communicate 1(gateway):200(buoy) each other under 900 MHz ISM band by using SEMTECH SX1276 chip. Also, we experiment the test on the sea and analyze the test results to prove the implementation possibility of the proposed equipments for the electric fishing gear using real name.

The similarities analysis of location fishing information through 2 step clustering (2단계 군집분석을 통한 해구별 조업정보의 유사성 분석)

  • Cho, Yong-Jun
    • Journal of the Korean Data and Information Science Society
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    • v.20 no.3
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    • pp.551-562
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    • 2009
  • In this paper, I would present a using method for The Fishing Operation Information(FOI) of National Federation of Fisheries Cooperatives(NFFC) through the availabilities analysis and put out the similarities by the section of the sea through classifying characteristics of fishing patterns by their locations. As a result, although the catch of FOI is nothing more than 33% level to National Fishery Production Statistics(NFPS), FOI data is useful in understanding the patterns of fishing operation by the location because both patterns and correlation were very similar in the usability analysis, comparing the FOI data with NFPS. So I classified optimal clusters for catch, the number of fishing days and the number of fishing vessels through 2 step cluster analysis by the big marine zone and divided fishing patterns.

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A study on the characteristics of hull shape parameter of fishing vessel types (트롤어선 선종의 선형 특성 계수에 관한 연구)

  • KIM, Su-Hyung;LEE, Chun-Ki;KIM, Min-Son
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.56 no.2
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    • pp.163-171
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    • 2020
  • Engaged in trawling in limited fishing grounds with a number of fish schools could cause collisions between fishing vessels. Therefore, providing accurate maneuver information according to the situation could be regarded as essential for improving seafarers safety and fishing efficiency as well as safety of navigation. It is difficult to obtain all maneuver information through sea trial tests only, so a method through empirical formula is necessary. Since most empirical formulas are developed for merchant ship types, especially the characteristics of hull shape parameter like CbB/L and dCb/B etc. are clearly different between fishing vessels and merchant ships, this could occur estimation errors. Therefore, in this study, the authors have selected target fishing vessels and merchant ships and analyzed the characteristics of hull shape parameter according to the ship types. Based on this analysis, the empirical formula developed for the merchant ship type has applied to the target fishing vessels; it has verified through the turning motion simulation that the estimation error could be generated. In conclusion, it is necessary to include the characteristics of the hull shape parameter of fishing vessels in the empirical formula in order to apply the empirical formula has developed for merchant ship types to fishing vessel types.

The Effect of Person-Specific Factors on Coastal Vessel Fishing Catch in Korea (우리나라 연안어업생산에 있어서 인적요소의 영향분석)

  • 김기수;강용주
    • The Journal of Fisheries Business Administration
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    • v.30 no.2
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    • pp.79-89
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    • 1999
  • This study is conducted to apply the insight of Johnson and Libecap(1982) to Korea's coastal vessel fishing. According to Johnson and Libecap(1982) the differences in fishing ability are largely attributed to acquired knowledge and innate skills. Since those skills are unlikely to be readily transferable assets, economic rents exist in the fishery, even under open access conditions. Therefore the paper tries to examine whether the acquired information from fishing experience and innate skill could also have an effect on catch variation of coastal vessel fishing in Kyung-Nam province. To do so, the paper is performing the analysis by establishing econometric model. Results show us that the acquired information from fishing experience have a significant effect on catch variation, but the innate skill does not.

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Utilization of the Information of Fishing and Sea Condition for Common Squid (Todarodes pacificus) Using Angling in the East Sea: Relationships between Fishing Ground and Sea Temperature (동해 오징어(Todarodes pacificus) 채낚기어업의 어·해황정보의 유효이용 -어장형성과 수온과의 관계-)

  • Jeong, Dong-Gun;Rho, Hong-Kil
    • Journal of Fisheries and Marine Sciences Education
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    • v.10 no.1
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    • pp.31-52
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    • 1998
  • In this paper, we analyzed the relationships between the fishing ground formation and the sea condition information, surface, mid and bottom layer temperature that is necessary for fishing point selection of angling to catch squid in the East Sea. There was a little differences between temperature measured by every fishing boat on fishing operating and prompt reports of fishing and sea condition about fishing ground formation of angling. And then the result examined by using SST that is a important information of sea condition for the fishing position selection follows as ; We knew, even if the differencs of sea condition each year, SST with a lot of fishing boats was generally within the extnet of $2^{\circ}C$. But the result examined by the limit time about the temperature of mid and bottom layer for the groups of fishing boats not to measure and for the near sea measurement to be done only within EEZ waters follows as ; About the temperature of 50m layer on early in June and July in operating waters of the group of fishing boats, the fishing ground was formed from $10^{\circ}C$ to $12^{\circ}C$ between warm waters and cold waters, afterwards we can seize that the fishing ground was moving to waters from $5^{\circ}C$ to $8^{\circ}C$ at near of polar front. In the coastal waters, we knew that fishing ground is formed to waters from $10^{\circ}C$ to $12^{\circ}C$ at the southern of polar front about the temperature of 50m layer.

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