• 한국발생생물학회지:발생과생식
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• 제10권2호
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• pp.79-84
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• 2006

제주 연안에 서식하는 용치놀래기, 어렝놀래기, 황놀래기, 놀래기를 대상으로 체장에 따른 성 분포와 생식소의 성 특성을 조직학적으로 탐색하여 성 전환 양상을 조사 비교하였다. 용치놀래기, 어렝놀래가, 황놀래기, 놀래기는 자성선숙형 자웅동체어로 조직학적 관찰 결과 정소조직(정자형성부위)이 퇴화기 난소의 전역에 출현하는 혼재형 2에 속하는 어종이었다. 용치놀래기, 황놀래기 그리고 놀래기는 1차 수컷과 2차 수컷이 존재하는 복웅성 어류이고, 조사된 어렝놀래기는 암컷이 수컷으로 성 전환된 2차 수컷만이 출현하는 단웅성 어류로 사료된다.

• 수산해양기술연구
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• 제51권3호
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• pp.387-395
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• 2015

Starfish, a species of Echinoderm, is widely known as a predator on benthic invertebrate. A series of fishing experiments was carried out in the western coastal waters of Korea from September, 2011 to November, 2012, using the drum-shaped pots of different mesh sizes (17.1, 24.8, 35.3, 39.8, and 48.3 mm) to describe the composition of the catch species and the mesh selectivity of the pot for starfish. Some species including fish, crab, and starfish were caught in the experimental pots. The SELECT (Share Each Length's Catch Total) method was applied to describe the selectivity of the pot for starfish Asterina pectinifera. The master selection curve was estimated to be s(R) = exp(10.358R-4.086) / [1+exp(10.358R-4.086)], where R is the ratio of arm length to mesh size. The relative arm length of 50% retention was 0.395, and the selection range was 0.212. The results should be helpful to understand the relationship between the catch size of starfish and the mesh size of pot.

• 수산해양기술연구
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• 제51권3호
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• pp.396-404
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• 2015

Morotoge shrimp Pandalopsis japonica is caught by pot and others in the eastern coastal waters of Korea. Comparative fishing experiments were carried out in the eastern coast of Korea, using the dome-shaped pots with different five mesh sizes (17.1, 24.8, 35.3, 39.8, and 48.3 mm) in order to estimate the mesh selectivity of the pot for the morotoge shrimp, Pandalopsis japonica. The SELECT (Share Each Length's Catch Total) analysis method was applied to the catch data. The master selection curve of the pot for the shrimp was estimated to be s(R) = exp(15.770R-10.573)/[1+exp(15.770R-10.753)], where R is the ratio of carapace length to mesh size. From the selection curves, the carapace lengths of 50% retention were 11.6, 17.0, 23.9, and 34.1 mm for 17, 25, 35, and 50 mm mesh-size pot, respectively. It means that the pots of larger mesh size allow more shrimp of small size to escape.

• 한국어류학회지
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• 제27권3호
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• pp.243-248
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• 2015

제주도 연안 해역에서 채집된 쏨뱅이목 양볼락과 (Scorpaenidae) 쑥감펭속 (Scorpaenopsis)에 속하는 연안성 해산어류 3개체 (표준체장 131.8~163.4 mm)에 근거해 Scopaenopsis neglecta를 한국미기록종으로 보고한다. 이들은 등지느러미 극조수가 12개인 점, 구개골치가 없는 점, 등지느러미 첫 번째와 세 번째 극조 사이에 흑색 반점이 없는 점, 그리고 두부가 측편하는 점에서 쑥감펭속의 특징을 잘 나타내고 있다. 또한 양안간격이 안경보다 넓고, 양안 중앙융기연이 없으며, 최상부 새개골극이 다분지하고, 가슴지느러미 내측 기부에 흑색 반점이 산재하고, 지느러미 가장자리에 검은 띠가 있는 특징에서 동속 타종과 구별된다. 본 종의 신한국명으로 산지인 서귀포어시장에서 불리는 방언인 '쏠치우럭'을 제안한다.

• 한국수산과학회지
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• 제45권4호
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• pp.372-378
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• 2012

The feeding habits of Hoplobrotula armata were studied using 269 specimens collected in the coastal waters of Geomun-do, Korea. The size of the specimens ranged from 5.6-56.8 cm in total length (TL). H. armata is a canivore that consumes mainly teleosts and decapods (shrimp, crabs and hermit crabs). Its diet also includes gammarid amphipods, cephalopods, polychaetes and copepods. Smaller individuals (<20 cm TL) fed mainly on fish, shrimp and crabs. The proportion of shrimp and crabs decreased as body size increased, whereas the consumption of fish gradually increased. Fish accounted for almost the entire stomach contents of individuals (larger than 40 cm TL).

• 한국수산과학회지
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• 제50권6호
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• pp.829-836
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• 2017

This study investigated the species composition and abundance of floating fish eggs to determine the timing and location of spawning of fish inhabiting the coastal waters of Sagye, Jejudo Island. Eggs were collected with a Bongo net bimonthly from May 2009 to February 2010. Identifications were based on nucleotide sequences of the mitochondrial cytochrome c oxidase subunit I (COI) gene. Eggs were determined to belong to 43 distinct taxa, 35 of which were identified to the species level. The assemblage spanned eight orders, 23 families, and 32 genera. The number of taxa collected varied from month to month, with 14 taxa (12 species) found in June 2009, 11 taxa (10 species) in October 2009, 10 taxa (nine species) each in August 2009 and February 2010, eight taxa (six species) in April 2009, and five taxa (four species) in December 2009. Five abundant species (Branchiostegus japonicus, Engraulis japonicus, Pseudolabrus sieboldi, Goniistius zonatus, and Halichoeres tenuispinis) together represented 52.8% of the total number of eggs collected during the study.

• 한국수산과학회지
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• 제25권6호
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• pp.485-494
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• 1992

1985-1989년간 한국연안의 서로 다른 서식지로부터 채집된 진주담치 Mytilus edulis와 굴 Crassostrea gigas중의 중금속 농도를 알아보았다. 두이매패류에서 가장 높은 중금속농도는 조사점 1, 2, 5, 23 그리고 25에서 발견되었던 반면 가장 낮은 중금속농도는 진해만 주위의 조사점에서 발견되었다. 5개년간 굴과 진주담치의 평균중금속농도비는 Cu 16:1, Cd 1.63:1, Pb 1.36:1, Zn 7.61:1 그리고 Hg 2.08:1로서 굴이 진주담치보다 Cu, Zn, Hg에서 보다 효과적인 생물농축자로 나타났다. 진주담치의 크기별 분포는 크기가 클수록 중금속농도도 증가하였다.

• Ocean and Polar Research
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• 제34권1호
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• pp.65-71
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• 2012

Gambierdiscus toxicus, Adachi et. Fukuyo, is a benthic ciguatoxin-producing armored dinoflagellate, often attached to macroalgae. This organism is the primary causative agent of ciguatera fish poisoning which occurs in tropical and subtropical regions. However, regardless of the fact that the population of Gambierdiscus spp. has expanded to such temperate areas from sub-trophic and trophic areas, monitoring of G. toxicus has been lacking in the Korean coastal waters of temperate areas. This study was performed at the uninhabited Baekdo Islands off the southern coast of Korea and at Seopsom Island in the vicinity of Seogwipo, Jeju Province during April and May, 2011. Cell densities of Gambierdiscus spp. on macroalgae at Baekdo and Jeju Island ranged from zero to 56.4 cells $g^{-1}$. Maximum density was recorded on the brown alga Cladophora japonica at St. 3 of Jeju Island. In particular, the cell densities of Gambierdiscus spp. were influenced by the substrate characteristics of macroalgae. In the future, the continuous monitoring of toxic benthic dinoflagellate is necessary to predict and prevent ciguatera poisoning in Korean coastal waters.

• 한국수산과학회지
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• 제31권6호
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• pp.813-816
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• 1998

동해안 강릉 연안의 양식산과 자연산 참가리비의 마비성패독 (PSP)에 의한 독화상황을 파악하기 위하여 1997년 1월부터 6월까지 중장선의 독성을 조사하였다. 마우스를 이용한 생물검정법으로 조사한 결과, 4월 30일과 5월 15일 시료에서 비록 $2 MU\;g^{-1}$의 낮기는 하였지만 독성이 검출되었으며, HPLC로 독조성을 분석하였 더니 gonyautoxins (GTXs)과 protogonyautoxins (PXs)이 주요 성분으로 확인되었다. 이로써 우리나라 동해안에서도 PSP에 의해서 패류가 독화한다는 사실을 확인할 수 있었다.

• Environmental Analysis Health and Toxicology
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• 제25권4호
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• pp.287-294
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• 2010

Objectives : The aim of this study was to verify the intersexuality of Crassostrea gigas and Ruditapes philippinarum in southern coastal waters of Korea. Methods : Specimens of Crassostrea gigas (n=363) were collected from six areas of Tongyeong, Geoje and Yeosu. Ruditapes philippinarum (n=221) was collected from five areas of Yeosu. The sex ratio and intersexuality were determined after observing gonad preparations. Results : The rate of intersexuality in Crassostrea gigas was 16.25%, with females (24.79%; n=30/121) exhibiting a higher rate than males (11.98%; n=29/242). The rate of intersexuality in Ruditapes philippinarum was 24.43%, with females (37.76%; n=37/98) exhibiting a higher rate than males (13.82%; n=17/123). Conclusions : The results of this study suggest that intersexuality is induced by aquatic pollutants such as endocrine disrupting chemicals (EDCs).