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우리나라 다랑어연승어업에 있어서 환형낚시와 재래식낚시를 사용하여 목표종의 어획률을 결정하는 요인 분석
안두해 ( Doo Hae An ),권유정 ( You Jung Kwon ),( Keith Bigelow ),문대연 ( Dae Yeon Moon ),이성일 ( Sung Il Lee ) 한국어업기술학회 2011 수산해양기술연구 Vol.47 No.4
We conducted experiments to compare the catch rate of bigeye tuna and yellowfin tuna between circle hooks and straight shank hook in the Korean tuna longline fishery at the eastern and central Pacific Ocean from 2005 to 2007. We analyzed difference of fork length, survival and hooking location between a circle hook and a straight shank hook for both tunas, respectively. There was no difference in the mean fork length size of yellowfin tuna caught on the two type of hook but bigeye tuna was significant. In case of survival, there was no difference between two hook type, but the difference of hooking location was significant for both species. We also analyzed to find determinants of both tunas catch rate using generalized linear models (GLMs) which were used latitude, longitude, year, month, depth, hook type, bait type and so on as independent variables. Spatial factors, latitude and longitude, and temporal factors, year and month, affected catch rate of bigeye tuna and yellowfin tuna. And also, depth such as a marine environment factor was influenced on catch rate.
안두해,문대연,고정락,조규대,박영철,AN Doo-Hae,MOON Dae-Yeon,KOH Jeong-Rack,CHO Kyu-Dae,PARK Yeong-Chull 한국수산과학회 2003 한국수산과학회지 Vol.36 No.4
This paper describes the relationship between the distribution of tuna and ENSO events in the Pacific Ocean which have occurred on a regular basis of 3-5 year terms. Annual catches and catch ratios of skipjack Funa, Katswonus pelamis and yellowfin tuna, Thunnus albacares largely increased during El $Ni\~{n}o$ years, while it decreased during La $Ni\~{n}a$ years. However, the effect of El $Ni\~{n}o$ on the distribution of tuna seemed to be more significant to yellowfin tuna which usually occurr the upper thermocline depth increases due to the elevated thermocline in the Western and Central Pacific Ocean.
김두남 ( Doo Nam Kim ),손호선 ( Haw Sun Sohn ),안용락 ( Yong Rock An ),박겸준 ( Kyum Joon Park ),김현우 ( Hyun Woo Kim ),안소언 ( So Eon Ahn ),안두해 ( Du Hae An ) 한국수산과학회 2013 한국수산과학회지 Vol.46 No.6
In 2011, the system for conserving and managing cetacean resources in Korea changed. The status of the cetacean bycatch was analyzed using a distribution certificate that was issued by the coast guard. During 2011~2012, 12 species were bycatch in Korean waters: three species of baleen whale and nine species of dolphin. The finless porpoise (Neophocaena phocaenoides) was the dominant species, followed by the common dolphin (Delphinus delphis), harbor porpoise (Phocoena phocoena), and Pacific white-sided dolphin (Lagenorhynchus obliquidens). Among the baleen whales, the common minke whale (Balaenoptera bonaerensis) was first and Bryde`s (Balaenoptera edeni) and humpback (Megaptera novaeangliae) whales appeared in the Korea Strait and East Sea,respectively. Among the dolphins, the finless porpoise ranked first in the Yellow Sea. The common dolphin, Pacific white-sided dolphin, and harbor porpoise were more frequent in the East Sea than in other waters. The cetacean bycatch was caused mainly by pots, set nets, gill nets, and stow nets. Among the three species of baleen whale, the common minke whale was caught by pots and set nets, and comprised over 68.9% of the total bycatch in 2011 and 56.2% in 2012. Comparing the bycatch caused by fishing gears by area in 2011 and 2012, 97.9% and 99.6%, respectively, of the finless porpoise bycatch in the Yellow Sea was by stow nets. In the Korea Strait, trawl bycatch comprised 67.3% in 2011 and 73.0% in 2012, followed by gill nets, set nets, and pots targeting finless porpoise and common minke whales. In the East Sea, gill nets were responsible for 46.7% in 2011 and 61.2% in 2012, followed by set nets and pots.
손호선 ( Haw Sun Sohn ),안두해 ( Du Hae An ),김두남 ( Doo Nam Kim ) 한국수산과학회(구 한국수산학회) 2012 한국수산과학회지 Vol.45 No.5
This paper reviews the Korean vernacular names of 35 cetacean species found in Korean waters and mentioned in 19 references, including laws, high school textbooks, and books on whales. The vernacular names of 16 species were identical in all sources examined. Some names have their origins in old Korean books, while others have recently entered public awareness through movies, TV programs, and (he mass media some species are frequently studied by researchers. Given the nature of vernacular names, that is, names used by people who live in sympatry with the animals, priority was not given high consideration in this paper. Instead, we carefully investigated the origin, publicity, and rationale of the Korean common names for the 35 species. All of these Korean names are also listed in "The World Cetacea Database (http://www.marinespecies.org/cetaccai)," which conlains the most accurate cetacean systematic information on the Web.
새만금에서 발생한 상괭이(Neophocaena asiaeorientalis)의 대량 폐사: 이상 저온에 따른 영향의 증거
박겸준 ( Kyum Joon Park ),안두해 ( Du Hae An ),임채웅 ( Chae Woong Lim ),이태호 ( Tae Ho Lee ),김두남 ( Doo Nam Kim ) 한국수산과학회 2012 한국수산과학회지 Vol.45 No.6
On 3 February 2011, a mass mortality of finless porpoises Neophocaena asiaeorientalis occurred at a dike of the Saemangeum Sea dike. A total of 249 carcasses were collected; these had been stranded by a sea dike and had floated into the lake formed by the dike. Eight bodies were measured, and four of these were dissected to analyze stomach contents. The blubber thicknesses of five bodies were compared with those of caught finless porpoises in the Yellow Sea from 2010. Finless porpoises at the Saemangeum Sea dike exhibited better nutritive conditions than finless porpoises in the Yellow Sea. Air temperature in January 2011 was lower than the prior 5-year average (P<0.05). Water temperature when the mass mortality occurred was lower than values observed in 2009 and 2010: values below 0°C had been recorded, and the majority of the dike lake had frozen over. The mass mortality of finless porpoises may have been caused by these unusually low temperatures.