http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유준택,최영민,양문호,임양재,고준철,창대수 한국패류학회 2009 The Korean Journal of Malacology Vol.25 No.3
This study describes biological environmental characteristics in natural habitats of Haliotis diversicolor in the coastal area of Sungsanpo located in the eastern coast of Jeju-do, Korea. The field survey was monthly conducted from May 2006 to February 2007. H. diversicolor, sea urchin, turban shell and marine algae were collected by two divers using SCUBA. The species composition of demersal fishes were seasonally investigated by fish traps in 2007. During the study period, more than 67% of H. diversicolor and sea urchin were found in the depth shallower than 5 m, and more than 64% of turban shell were found in the depth deeper than 3 m. The dominant algal species in May were generally Undaria pinnatifida, Ecklonia cava, Sargassum. spp. and coralline algae. Most of demersal fishes collected by the fish traps were wrasses which have been reported as a major predator of young abalone.
여수와 진도 연안 낭장망에 어획된 어류 혼획률 월 변화 및 미성어 비율
유준택,김영혜,송세현,박성욱 한국어업기술학회 2016 수산해양기술연구 Vol.52 No.1
We examined monthly changes in the rate of fishes by-caught by gape net with wings and their immature ratio in thecoast of Yeosu and Jindo Island, Korea. A minus correlation between bycatch rate, the ratio of fishes except for anchovy, Engraulis japonicus, to all fishes collected by gape net with wings, and individuals of the collected anchovy was significantly observed, implying that as the anchovy catch decreased and the bycatch rate increased. Immature ratios by the dominant bycatch species during the study is the following; Leiognathus nuchalis was 72.7~99.0%, Sphyraena pinguis was 84.0%, Sardinella zunasi was 90.0%, others (Leptocephalus, Trichiurus lepturus, Ammodytes personatus, Sphyraena pinguis, Trachurus japonicas, Mugil cephalus and Erisphex pottii) were 100.0%. In order to decrease the high bycatch rates of immature fishes in spring and autumn, our study suggested increasing of codend mesh size and developing suitable bycatch reduction devices in a gape net with wings.
제주도산 소라 (Batillus cornutus) 성패의 특정 해조류에 대한 선호도
유준택,오봉세,장대수 한국패류학회 2011 The Korean Journal of Malacology Vol.30 No.4
This paper examines relation between growth of adult top shell and their selectivity over different marine algae. For the study the top shell density and the algal species in different depth were surveyed by SCUBA. To test selectivity over different types of algae, five algal species including Ecklonia cava, Undaria pinnatifida, Ulva spp, Gelidium amansii and Sargassum spp were provided to top shells in indoor water tank condition. In the field survey, the wet weight of Ecklonia cava was significantly (r = 0.612, p < 0.05) correlated to the shell length (SL) of top shell. In the indoor water tank experiment conducted over 12 hours after sunrise, adult top shell (SL > SL 4.5 cm) tended to select Ecklonia cava and Undaria pinnatifida, which are common and abundant algal in the subtidal waters in Jeju Island. Our field survey and the indoor experiment suggest that E. cava and U. pinnatifida could be food preferred by adult top shell in its habitat.
제주도산 소라 (Batillus cornutus) 성패의 특정 해조류에 대한 선호도
유준택,오봉세,장대수,Yoo, Joon-Taek,Oh, Bong-Se,Chang, Dae-Soo 한국패류학회 2011 The Korean Journal of Malacology Vol.27 No.4
This paper examines relation between growth of adult top shell and their selectivity over different marine algae. For the study the top shell density and the algal species in different depth were surveyed by SCUBA. To test selectivity over different types of algae, five algal species including Ecklonia cava, Undaria pinnatifida, Ulva spp, Gelidium amansii and Sargassum spp were provided to top shells in indoor water tank condition. In the field survey, the wet weight of Ecklonia cava was significantly (r = 0.612, p < 0.05) correlated to the shell length (SL) of top shell. In the indoor water tank experiment conducted over 12 hours after sunrise, adult top shell (SL > SL 4.5 cm) tended to select Ecklonia cava and Undaria pinnatifida, which are common and abundant algal in the subtidal waters in Jeju Island. Our field survey and the indoor experiment suggest that E. cava and U. pinnatifida could be food preferred by adult top shell in its habitat.
날개다랑어(Thunnus alalunga) 치어의 국내 출현
유준택 ( Joon Taek Yoo ),김장근 ( Zang Geun Kim ),김진구 ( Jin Koo Kim ),유정화 ( Jung Hwa Ryu ) 한국수산과학회 2012 한국수산과학회지 Vol.45 No.2
A single juvenile specimen of Thunnus alalunga (8.4 mm in standard length) of the Scombridae was collected from the southeast sea of Jeju Island (127.7˚E, 33.0˚N) on August 18, 2011. It was identified as T. alalunga based on the following combination of morphological characters: snout elongated; melanophores focused on the dorsal spiny region, but no melanophores on the dorsal soft fin base, anal fin base or caudal region.
유준택 ( Joon-taek Yoo ),김영혜 ( Yeong Hye Kim ),이승환 ( Seung Hwan Lee ),김진구 ( Jin-koo Kim ) 한국어류학회 2017 韓國魚類學會誌 Vol.29 No.1
본 연구는 남해 중부 연안역에서 2016년 4~8월까지 자어 군집구조의 월 변화를 조사하였다. 조사기간 동안 총 42종의 자어가 출현하였다. 우점종 중 멸치 (E. japonicus)는 여름보다는 봄철에 우점하였고, 용서대 (C. abbreviates)는 봄철에만 출현하였으며 수조기 (N. albiflora)는 여름철에만 출현하였다. 자어 군집은 계절별로 4~5월 (봄)과 6~8월 (여름)의 그룹으로 유의하게 나눌 수 있었고, 여름철은 또다시 6~7월과 8월의 두개의 유의한 그룹으로 나눌 수 있었다. 2016년 8월 조사해역에서는 이상 고수온 현상이 발생하여 표면수온이 28℃까지 상승하였고, 멸치와 수조기 자어의 출현량은 산란 적정수온을 넘은 수온으로 인해 급감하였다. We examined monthly variations in community structure of larval fish assemblage in the coastal waters of south-central Korea in spring and summer, 2016. A total of 31 taxa of larvae were collected during the study period. Engraulis japonicus larvae were predominated in spring than summer. The larvae of Cynoglossus abbreviates, a spring spawners, were exclusively collected in spring, while those of Nibea albiflora, a summer spawners, were exclusively caught in summer. Due to those seasonal differences in abundance of the dominant species, larval fish community was divided into two main seasonal groups (i.e. April~May and June~August). In addition, summer group was divided into two significant subgroups (June~July and August). During August, the larvae of E. japonicus and N. albiflora sharply decreased in abundance due to abnormally high sea water temperature that was raised up to 28°C, with the temperature being out of range of their optimum spawning temperature.
완도 연안 낭장망에 채집된 어류 군집구조의 12년 전후 변화
유준택 ( Joon Taek Yoo ),김진구 ( Jin Koo Kim ),최문성 ( Mun Seong Choi ) 한국수산과학회 2014 한국수산과학회지 Vol.47 No.5
Our aim was to compare the community structure of fish in the coast of Wando Island between 2001 and 2013. Us-ing a gape net with wings, we collected 61 taxa, wherein the most dominant species was Engraulis japonicus. The sea temperature in the middle layer of the survey station in 2001 (after June) was obviously higher than that in 2013, which was < 20°C. Except for Thryssa kammalensis in 2013, the log transformed individuals of seven dominant species, selected using a SIMPER (similarity-percentages procedure) analysis, decreased. Decreases in the individu-als of Gobiidae spp., the warm-water species Trichiurus japonicus and Conger myriaster, and the migratory species Syngnathus schlegeli, Setipinna taty and Sardinella zunasi, which arrive in the southern coastal waters of Korea dur-ing summer-autumn, could be due to decreasing sea temperature in 2013. Thus, fish species diversity, estimated from rarefaction and k-dominance curves, declined in the coastal waters of Wando Island from 2001 to 2013, resulting in a significant difference in fish community structure