생몰정보
소속
직위
직업
활동분야
주기
서지
국회도서관 서비스 이용에 대한 안내를 해드립니다.
검색결과 (전체 1건)
원문 있는 자료 (1) 열기
원문 아이콘이 없는 경우 국회도서관 방문 시 책자로 이용 가능
목차보기더보기
표제지
목차
요약문 5
SUMMARY 6
제1장 연구개발과제의 개요 9
제2장 국내외 기술개발 현황 10
제3장 연구개발 수행내용 및 결과 11
제1절 해양포유류 혼획 메커니즘 규명 11
1. 혼획 신고 자료 분석 11
2. 어구별 혼획 메커니즘 모니터링 14
3. 해양포유류 행동 특성 문헌 조사 16
4. 고래류의 행동 모니터링 18
5. 혼획 신고 자료 분석 결과도출 24
6. 어구별 혼획 모니터링에 따른 결과 28
제2절 혼획저감 어구 및 장치 개발 31
1. 안강망 해양포유류 혼획저감 어구 설계 및 제작 31
2. 안강망 해양포유류 혼획저감 어구 어획 성능 시험 37
3. 안강망 해양포유류 혼획저감 최적 어구 개발 50
4. 로프의 얽힘 방지를 위한 굵기, 재질 변화 연구 60
5. 통발, 연승에서의 혼획 방지 방안 마련 63
6. 해양포유류 탈출 및 방류 동영상 제작 (정치망, 안강망) 65
제4장 목표달성도 및 관련분야에의 기여도 68
제5장 연구개발결과의 활용계획 70
제6장 참고문헌 71
제7장 부록 72
Table 1. Report data by type of bycatch by bycatch fishing gear (2014) 11
Table 2. Report data by type of bycatch by bycatch fishing gear (2015) 12
Table 3. Report data by type of bycatch by bycatch fishing gear (2016) 12
Table 4. Report data by type of bycatch by bycatch fishing gear (2017) 13
Table 5. Report data by type of bycatch by bycatch fishing gear (2018) 13
Table 6. Order of behavioral response tests for whale ropes 21
Table 7. Number of bycatching surveys by fishing gear and sea area (2014~2018) 25
Table 8. Report data by type of bycatch by bycatch fishing gear (2014~2018) 26
Table 9. Current status of whale bycathcing by region in the West Coast from 2014 to 2018 27
Table 10. Number of bycatch by fishing gear by month (2014~2018) 27
Table 11. Bycatch and stranding by fishing gear by major whale species (2014~2018) 28
Table 12. Number of bycatch and stranding by whale species from 2014 to 2018 28
Table 13. Specification of coastal stow net to be used for porpoise escape device experiment 36
Table 14. Mesh size of guide net according to Porpoise 40
Table 15. Total catch and escape rate 42
Table 16. Comparison of catch loss amount, loss rate and main loss fish species according to the mesh size of the guide net 54
Table 17. The amount of catch loss and catch loss rate by trial number according to the attachment of a catch loss prevention device 55
Table 18. Composition rate of major loss (escape) fish species according to the position of the escape hole in 2020 58
Table 19. Composition ratio of major loss (or escape) fish species by trial number according to the type of bag net 60
Fig. 1. Route change case 10
Fig. 2. Fishing ground closure case 10
Fig. 3. Pinger and underwater speaker 10
Fig. 4. Cetacean escape technique in purse seine net 10
Fig. 5. Trawl escape device of pinniped 10
Fig. 6. ∅20mm rope (2lines) 18
Fig. 7. ∅20mm rope (1line) 18
Fig. 8. ∅16mm rope (2lines) 18
Fig. 9. ∅16mm rope (1line) 18
Fig. 10. ∅10mm Black rope (2lines) 19
Fig. 11. ∅10mm Black rope (1line) 19
Fig. 12. ∅10mm White rope (2lines) 19
Fig. 13. ∅10mm White rope (1line) 19
Fig. 14. ∅10mm Red rope (2lines) 20
Fig. 15. ∅10mm Red rope (1line) 20
Fig. 16. ∅10mm Blue rope (2lines) 20
Fig. 17. Mimetic diagram of a behavioral reaction test for a whale's rope 21
Fig. 18. Beluga's water tank 22
Fig. 19. Beluga's reaction to the ropes 22
Fig. 20. A-tag installation scene in mullet farm (Hadong-gun) 23
Fig. 21. A finless porpoise discovered using a drone 23
Fig. 22. A-tag analysis program 23
Fig. 23. Frequency of appearance of finless porpoise by hour 24
Fig. 24. Record a-tag from 2018.11.7 to 2018. 12. 5 24
Fig. 25. Number of reported Finless porpoise bycatch by year 26
Fig. 26. Location of finless porpoise bycatch (without escape device) 29
Fig. 27. Finless porpoise caught in fishing gear without escpe device 29
Fig. 28. Mimetic diagram of the escape route of the bag net 31
Fig. 29. The finless porpoise's length, chest, and torso measurements 31
Fig. 30. The whole covering method (A) and the method covering only the escape route (B) (Wileman et al., 1996) 32
Fig. 31. The mimetic diagram of finless porpoise passing through the exit (front view) 33
Fig. 32. Correlation of width to body length of finless porpoise 33
Fig. 33. The schematic drawing of the guide net of finelss porpoise 34
Fig. 34. Attaching the guide net to the fishing gear 34
Fig. 35. Schematic drawing of covernet (skip the bag net extension) 35
Fig. 36. Produced covernet folded in a symmetricalline 35
Fig. 37. A finless porpoise escape device installed in stow net 35
Fig. 38. Design diagram of the guide net considering the torso and chest fins 37
Fig. 39. Mimetic diagram for calculation F 38
Fig. 40. Correlation of guide net mesh size (L) and body length (BL) of finless porpoise 38
Fig. 41. Distribution of the number of finless porpoise by body length (2017) 39
Fig. 42. Schematic drawing of guide net 39
Fig. 43. Mimetic diagram of a fishing gear equipped with a guide net on a stow net 41
Fig. 44. Side view of stow net for testing 41
Fig. 45. Escape rate of catch due to attachment of escape device 43
Fig. 46. The amount of escape of major fish species due to the attachment of the escape device 43
Fig. 47. A finless porpoise caught in the cod end of the test stow net 44
Fig. 48. Stow net with an escape device for marine mammals 44
Fig. 49. Mimetic diagram of covernet 45
Fig. 50. The structure of the escape device for finless porpoise (A) and the schematic drawing of the guide net (B) in stow net 46
Fig. 51. Mimetic diagram of the fishing gear used in the escape device opening efficiency experiment for finless porpoise 46
Fig. 52. Mimetic drawing of the escape guide net and the installation position of the marking ball (Left) Marking ball (right) 47
Fig. 53. Installation position of the marking ball as viewed from the side 47
Fig. 54. Mimetic diagram and installation scene of the support for towing fishing gear. (A) Front view of the support, (B) Side view of the support,... 48
Fig. 55. Mimetic diagram of experimental net connected to the support with ropes 48
Fig. 56. Mimetic diagram of towing experiment and camera shooting location 49
Fig. 57. Measure the spacing of the marker spheres 49
Fig. 58. Variation in the spacing of marking balls according to towing speed. (A) Forward marking ball, (B) Backward marking ball 50
Fig. 59. Mimetic diagram of guide net with 370mm mesh size and 300mm mesh size 50
Fig. 60. A catch loss prevention device using ropes (white, spread type) 51
Fig. 61. A catch loss prevention device using a rope (black, lumpy) 51
Fig. 62. A catch loss prevention device using nets (A), diagram (B) 52
Fig. 63. A catch loss prevention device using nets and ropes (A), diagram (B) 52
Fig. 64. Catch loss rate by trial number according to the mesh size of the guide net 53
Fig. 65. Catch loss weight of fish species by trial number according to the mesh size of the guide net 53
Fig. 66. Catch loss rate according to the attachment of a catch loss prevention device by trial number 55
Fig. 67. Mimetic diagram of fishing gear for the catch loss test according to the location of the escape hole position 57
Fig. 68. Catch loss rate by trial number according to the position of the escape hole in 2020 57
Fig. 69. Mimetic diagram of fishing gear for the catch loss test according to the type of bag net 59
Fig. 70. Catch loss rate by trial number according to the type of bag net 59
Fig. 71. Mimetic diagram of the underwater shape of the red snow crab trap accprding to the main rope material (1~7. depth sensor No.) 61
Fig. 72. Variations of the depth of pot (A) and main rope (B) by time during the sea trial 62
Fig. 73. Release bag and receiver (upper left), transmitter (upper right), ropeless trap management system (upper center), A scene which a trigger... 63
Fig. 74. Depth variation of release bag receiver (A), release bag buoy (B), anchor (C) and pot (D) by operation time 64
Fig. 75. An improvement plan for the ropeless trap system 65
Fig. 76. A scene of attaching the underwater camera to fishing gear 66
Fig. 77. A scene of discharging jellyfish through out the escape hole 66
Fig. 78. A scene of crab escape through out the escape hole 67
Fig. 79. A sceane of marine mammal release video in a set net 67
이용현황보기
가상서가
도서위치안내: 인문자연과학자료실(314호) / 서가번호: 41
우편복사 목록담기를 완료하였습니다.
* 표시는 필수사항 입니다.
* 주의: 국회도서관 이용자 모두에게 공유서재로 서비스 됩니다.
저장 되었습니다.
로그인을 하시려면 아이디와 비밀번호를 입력해주세요. 모바일 간편 열람증으로 입실한 경우 회원가입을 해야합니다.
공용 PC이므로 한번 더 로그인 해 주시기 바랍니다.
아이디 또는 비밀번호를 확인해주세요
