제주도 연안 해양환경과 어류군집의 계절별 특성 (2012~2013년)

고준철(Jun-Cheol KO),김보연(Bo-Yeon KIM),김맹진(Maeng-Jin KIM),박성은(Sung-Eun PARK),김종빈(Jong-Bin KIM),차형기(Hyung-Kee CHO) 한국수산해양교육학회 2015 水産海洋敎育硏究 Vol.27 No.2

제주도 연안 천해역의 수온,염분 변동 특성

고준철 ( Jun Cheol Ko ),김준택 ( Jun Teck Kim ),김상현 ( Sang Hyun Kim ),노홍길 ( Hong Kil Rho ) 한국수산과학회 2003 한국수산과학회지 Vol.36 No.3

제주도 남부 가파도 연안 어류군집의 계절별 특성

고준철 ( Jun-cheol Ko ),한송헌 ( Song-heon Han ),김보연 ( Bo-yeon Kim ),최정화 ( Jung-hwa Choi ),황강석 ( Kang-seok Hwang ) 한국수산해양기술학회(구 한국어업기술학회) 2021 수산해양기술연구 Vol.57 No.1

A seasonal characteristic of fish assemblages in the coastal waters of Gapa-do was determined using samples collected by a trammel net from 2015 to 2019. Annual mean temperature and salinity were 18.9℃, 33.6 psu (2015), 19.5℃, 33.6 psu (2016), 18.9℃, 33.8 psu (2017), 18.8℃, 34.5 psu (2018) and 19.5℃, 33.7 psu (2019), which show a stable water mass. During the survey period, a total of 50 species (30 families and 8 orders) of fishes were identified, including Scorpaeniformes (3 families and 9 species) and Perciformes (18 families and 29 species) that accounted for 68% of the total number. The number of species was higher in summer than in winter, showing the peak in the summer by 35 species and the low in the winter by 20 species. The number of individuals and the biomass peaked in the summer by 690 individuals and 151.4 kg, and were the lowest in the autumn by 336 individuals and 76.6 kg. The annual diversity index, evenness index and richness index were appeared to be 2.54-2.75, 0.68-0.76 and 5.32-6.65 at each stations. The dominance index was appeared to be the highest in 2018 and the lowest in 2015. Marbled rockfish (Sebastiscus marmoratus), rock fish (Sebastes inermis), filefish (Stephanolepis cirrhifer), rabbit fish (Siganus fuscescens), porcupine fish (Diodon holocanthus) and smallscale blackfish (Girella melanichthys) were dominant species, which occurred abundantly during the entire survey period. Subtropical fishes were identified as a total of 24 species (48.0%) and the number of species was higher in 2019 by 20 (60.6%) species and lower in 2015 by 13 (44.8%) species. The dominant species of the subtropical fishes were appeared to be rabbit fish, porcupine fish, smallscale blackfish, flag fish (Goniistius zonatus), stripey (Microcanthus strigatus), grunter (Parapristipoma trilineatum), and bluestriped angelfish (Chaetodontoplus septentrionalis) at the study sites.

한국 연근해 방어 어획량 변동 및 분포특성에 관한 연구

김준택 ( Jun Teck Kim ),노홍길 ( Hong Kil Rho ),김상현 ( Sang Hyun Kim ),고준철 ( Jun Cheol Ko ),안영화 ( Young Hwa Ahn ),최찬문 ( Chan Mun Choi ) 한국어업기술학회 2002 수산해양기술연구 Vol.38 No.1

제주 연안의 가시복(Diodon holoanthus)에서 분리된 세균의 다양성 및 항균활성 효과

문채윤 ( Chae-yun Moon ),고준철 ( Jun-cheol Ko ),김민선 ( Min-seon Kim ),허문수 ( Moon-soo Heo ) 한국미생물 · 생명공학회 2020 한국미생물·생명공학회지 Vol.48 No.1

지구 온난화로 인한 제주도의 해양 생태계는 지난 20년동안 온대에서 아열대로 변화되었다. 이러한 기후 변화는 난대성 어류가 서식할 수 있는 환경이 되며, 최근 제주 연안에서는 가시복(diodon holoanthus)이 발견되고 있다. 본 연구에서는 가시복의 장내미생물의 다양성을 파악하였다. 그리고 다양한 균주 중 어류 또는 인체 유해세균 가능성을 확인하고자 항균 활성 탐색을 수행하였다. Proteobacteria는 분리 된 균주 중 91%를 차지한 우점문으로 γ-proteobacteria강은 11속 142종으로 Vibrio속 35%, Photobacterium속 32%, Shewanella속 6%, Psychrobacter속 4%, Acinetobacter속 3% 및 나머지 Enterovibrio, Moraxella_g2속이 각각 1%를 차지했다. α-proteobactera강은 5속 5종으로 Brevundimonas속, Allorhizobium속, Pseudoceanicola속, Erythrobacter속 및 Methylobacterium 속이 각각 1%로 나타났다. Firmicutes문 Bacilli강은 6속 10종으로 Bacillus속 5%가 가장 높았고 나머지 Terribacillus속, Paenibacillus속, Salinicoccus속, Staphylococcus속 및 Streptococcus속은 1%로 관찰됐다. Actinobacteria문 Actinobacteria강은 3속 3종으로 Janibacter속, Micrococcus속 및 Isoptericola속이 각각 1%를 차지했다. Over the past 20 years, global warming has transformed the marine ecosystem of the Jeju Island into a subtropical zone making it conducive to the production of tropical fishes. Recently, the balloon fish (Diodon holoanthus) has been found off the coast of the Jeju Island. In this study, we analyzed the diversity of its intestinal microorganisms as a representative for the surrounding environment. In addition, the isolates were evaluated for their antibacterial activity. A total of 161 strains of various species were identified and isolated using 16S ribosomal RNA gene sequence analysis. They were separated into three groups, of which Phylum Proteobacteria was found to be the most dominant with 91% sequence similarity. This includes the class γ-proteobacteria that is made up of twelve genera and twenty-four hundred species. The second group comprised strains of the genus Vibrio, made up of 35% Photobacteria, 32% Shewanella, and 6% Psychrobacter. It was also determined that 4% of the isolates were Acinetobacter, 3% were Enterovibrio, while Moraxella_g2 accounted for 1% of the total isolates. Class α-proteobactera includes five genera and five species; Brevundimonas, Allorhizobium, Pseudoceanicola and Erythrobcter, each accounting for 1% of the total isolates. The Firmicute strains belonged to six genera and ten species. 5% of the strains were Terribacillus, while Paenibacillus, Salinicoccus, Staphylococcus and Streptococcus accounted for 1% each of the total isolates. Actinobacteria accounted for the final phylum with strains belonging to three genera and ten species with Janibacter, Micrococcus and Isoptericola each accounting for 1% of the total isolates.

한국산 갈치과 어류 1 미기록종, Tentoriceps cristatus

김맹진 ( Maeng Jin Kim ),고준철 ( Jun Cheol Ko ),송춘복 ( Choon Bok Song ) 한국어류학회 2014 韓國魚類學會誌 Vol.26 No.3

갈치과에 속하는 Tentoriceps cristatus 1개체(표준체장 619.0 mm)가 제주도 주변해역에서 저층트롤로 처음으로 채집되었다. 이종은 머리의 외곽이 둥근 점(유사종 분장어는 직선을 이룸), 배지느러미는 등지느러미 12번째 기조 밑에 위치하는 점(유사종 분장어는 15~17번째 기조 밑에 위치), 등지느러미 기조수가 V, 131개, 가슴지느러미 기조수가 11개, 배지느러미가 비늘형태로 변형된 점, 그리고 뒷지느러미의 극조수가 2개(2번째 극조는 비늘모양으로 변형됨)인 점이 특징이다. 본 종의 속명과 종명은 “투구갈치속”과 “투구갈치”로 각각 명명하였다. One specimen (619.0 mm in standard length) of Tentoriceps cristatus, belonging to thefamily Trichiuridae, was newly collected in the coastal waters of Jeju Island by the bottom trawl. Thisspecies was characterized by the following morphological traits: round dorsal profile of head (vs. straightfor the similar species, Eupleurogrammus muticus); pelvic fin locating below the 12th dorsal fin ray (vs. 15th~17th); V, 131 dorsal fin rays; 11 pectoral fin rays; 1 pelvic fin ray changed to be a scale-like process;II anal fin rays (second one is changed to be a scale-like process). We suggest the Korean names,“Tu-gu-gal-chi-sok” and “Tu-gu-gal-chi” for the genus and species, respectively.

한국 제주 연안 및 가파도 해역의 조하대 해조상 및 군집구조 모니터링 (2013-2015)

김보연 ( Bo Yeon Kim ),고준철 ( Jun-cheol Ko ),최한길 ( Han Gil Choi ) 한국수산과학회(구 한국수산학회) 2018 한국수산과학회지 Vol.51 No.3

We seasonally examined marine macroalgal community structures and ocean environmental characteristics in subtidal zones at five sites on and around Jeju Island, Korea, from February 2013 to November 2015. A total of 186 macroalgal species were identified, including 18 green, 33 brown, and 135 red algae. During the study period, the number of species was highest at Gapado Island (125 species) followed by Bukchon (123 species), Sagye (122 species), Sinheung (122 species) and Sinchang (97 species). Ecklonia cava, Peyssonnelia caulifera, Synarthrophyton chejuense, Corallina aberrans and Corallina crassisima occurred at all study sites and in all seasons. The average annual biomass of seaweed was 1,125.10 g wet wt./㎡ and ranged from 899.77 g/㎡ at Sinheung to 1,452.00 g/㎡ at Gapado. A brown alga E. cava was the most dominant species, accounting for 49.84% (560.78 g/㎡) of the total seaweed biomass. Subdominant species were C. aberrans and C. crassissima, comprising 6.83% (76.79 g/㎡) and 5.98% (67.28 g/㎡) of total biomass, respectively. Cluster analysis revealed three distinct groups: the Sagye/Sinheung group (group A), the Bukchon/Sinchang group (group B), and the Gapado group (group C), indicating significantdifferences in macroalgal communities between sites.

한국 제주 연안의 암반 형태 차이와 저서생물 군집구조^1a

김보연 ( Bo Yeon Kim ),고준철 ( Jun-cheol Ko ),최한길 ( Han Gil Choi ) 한국환경생태학회 2016 한국환경생태학회지 Vol.30 No.6

제주 연안 저서생물(해조류, 무척추동물)의 군집구조가 저서 기질 형태에 따른 차이를 파악하기 위해 신흥해역에서 2015년 2월부터 11월까지 매월 조사되었다. 암반정점에서는 해조류 57종과 무척추동물 102종이 출현하였고, 몽돌정점에서는 해조류 42종과 무척추동물 67종이 관찰되어 암반기질에서 저서생물의 출현종수가 높은 것으로 나타났다. 해조류의 연평균 생물량은 암반정점에서 1,601.13 g wet wt./㎡으로 몽돌정점의 448.85 g wet wt./㎡보다 약 4배 높았다. 감태는 암반정점에서 전체 생물량의 62.64% (1,002.93 g/㎡)를 차지하는 우점종이었고, 몽돌정점에서는 넓은게발, 감태, 붉은뼈까막살, 자루바다표고, 갈래곰보가 우점하였다. 저서무척추동물의 개체수 및 생물량은 암반정점에서 각각 106.9 indivi./㎡, 871.93 g/㎡이며, 몽돌정점에서는 64.6 indivi./㎡, 984.28 g/㎡로 나타났다. 무척추동물의 생물량 우점종을 파악한 결과, 암반정점에서는 소라(36.40%), 바퀴고둥(19.18%), 보라성게(13.61%)였고, 몽돌정점에서는 거품돌산호(54.13%)와 그물코돌산호(24.28%)로 기질에 따른 우점종의 차이를 확인하였다. Effects of substrate types (bedrock and boulder habitat) on the community structures of benthic biota (macroalgae, macrobenthos) were monthly examined at Sinheung in Jeju Island, Korea, from Feb. to Nov. 2015. Species diversity of seaweeds and macrobenthos was greater at bedrock sites with 57 and 102 species than at boulder sites having 42 seaweeds and 67 macrobenthos. Average annual biomass of seaweeds was 1,601.13 g wet wt./㎡at bedrock site and 448.85 g wet wt./㎡at boulder site. Ecklonia cava was the most dominant species, occupying 62.64% (1,002.93 g/㎡)of total biomass at bedrock. Amphiroa anceps was the most dominant species and subdominant species was Ecklonia cava, Grateloupia angusta, Peyssonnelia capensis and Meristotheca papulosa at boulder site. Density and biomass of macrobenthos were estimated to be 106.9 indivi./㎡and 871.93 g/㎡, respectively at bedrock site and they were 64.6 indivi./㎡ and 984.28 g/㎡at boulder site. The dominant macrobenthos species based on biomass were Turbo comutus (36.40%), Astralium haematragum (19.18%) and Anthocidaria crassispina (13.61%) at bedrock site and they were Alveopora japonica (54.13%) and Psammocora profundacella (24.28%) at boulder site.

제주도 주변해역 조하대 해조류 군집구조의 계절적 변동

김보연 ( Bo Yeon Kim ),고준철 ( Jun Cheol Ko ),고혁준 ( Hyuck Joon Ko ),박성은 ( Sung Eun Park ),차형기 ( Hyung Kee Cha ),최한길 ( Han Gil Choi ) 한국수산과학회 2013 한국수산과학회지 Vol.46 No.5

Marine macroalgal community structures and characteristics of ocean environmental factors were examined seasonally at four sites in Jeju Island, Korea, from March to November 2012. A total of 71 macroalgal species were identified, including 9 green, 7 brown, and 55 red algae. Peyssonnelia capensis occurred at all study sites and in all seasons. The average annual biomass of seaweed was 991.84 g wet wt/m2, with seasonal variations from 543.80 g in autumn to 1,284.17 g/m2 in summer. A green alga, Codium coactum, was the dominant species, occupying 21.31%(211.39 g/m2) of the total algal biomass in Jeju Island. Subdominant species were Ecklonia cava and Lithophyllum okamurae, comprising 20.85% (206.75 g/m2) and 19.64% (194.75 g/m2), respectively, of the total algal biomass in Jeju Island. The vertical distribution of subtidal seaweeds was represented by L. okamurae at 5 m depth, C. coactum at 10 m depth, E. cava at 5-10 m depth and P. capensis at the 20 m depth level. In the present study, crustose coralline algae, which predominated on barren ground, were subdominant species at all study sites. Community indices varied between 0.51-0.63 for dominance index (DI), 5.53-8.14 for richness index (R), 0.51-0.63 for evenness index (J`), and 2.04-2.32 for diversity index (H`). On the basis of seaweed biomass and community indices, Sinchang was the best preserved coastal area, showing maximal values in biomass, and evenness- and diversity- indices, and minimal value in the dominance index, representing stable environmental conditions. In contrast, the Onpyung and Topyeong sites,located near tourist venues such as Udo and Seogwipo were relatively poor habitats based on community indices and biomass. The present results could imply that climate changes alter seaweed community structure, and long-term monitoring of the study sites is required.