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이완옥 한국어류학회 1993 韓國魚類學會誌 Vol.5 No.2
한국의 연안에서 1990년부터 1993년까지 채집된 참복과(복어목) 어류 가운데 다음 6종의 어류는 지금까지 한번도 채집되어 기록된 적이 없는 한국 미기록종이었다. 이들 6종의 새로운 국명과 학명은 민밀복 Lagocephalus inermis(Temminck et Schlegel), 황해흰점복 Takifugu alboplumbeus(Richardson), 흰점참복 T. pseudommus(Chu), 망복 T. reticularis(Tien, Cheng et Wang), 흰점꺼끌복 Arothron hispidus(Linnaeus), 흑점꺼끌복 A. nigropunctatus(Bloch et Schneider)이었으며, 위의 종들의 특징과 분포에 관하여 논의하였다. Six species of the family Tetraodontidae collected from coastal waters of Korea were described with photographs, all of which are unreported previously from Korea. They are Lagocephalus inermis(Temminck et Schlegel), Takifugu alboplumbeus(Richardson), T. pseudommus(Chu), T. reticularis(Tien, Cheng et Wang), Arothron hispidus(Linnaeus) and A. nigropunctatus(Bloch et Schneider).
Age and Growth of Barbel Steed Hemibarbus labeo in Goe-san Lake in Korea
이완옥,Ming-Ming Zhang,오철웅,백재민,송경준 한국수산과학회 2012 Fisheries and Aquatic Sciences Vol.15 No.4
Age and growth of Hemibarbus labeo caught from Goe-san Lake in South Korea from March to November, 2011, were studied. A total of 201 specimens was collected, ranging from 110 to 580 mm in total length (TL). Males and females made up 47.9% and 52.1% of the sample, respectively. Marginal increment analyses showed that vertebral increments, each composed of one opaque and one hyaline zone, were deposited annually. Opaque edges were prevalent from June to July. The relationship between TL and vertebral radius was linear, with equations of R = 0.008TL - 0.208 (male) and R = 0.009TL - 0.272 (female). Regression equations between TL and total weight (TW) were TW = 9×10-6 TL2.987 (male), TW = 8×10-6 TL3.014 (female), and TW = 9×10-6 TL2.988 (combined sexes), according to the von Bertalanffy growth equation. Back-calculated TL was expressed using the von Bertalanffy equation as follows: Lt = 438.25(1 - e-0.175(t+0.164)) for males, Lt = 483.36(1 - e-0.147(t+0.115)) for females, and Lt = 464.86(1 - e-0.162(t+0.176)) for the sexes combined. The growth performances were 4.526, 4.536, and 4.544, respectively.
Distribution characteristics of freshwater fish in Jeju-do, Korea
이완옥,김대한,김대희,백재민,이상우,양계정 국립중앙과학관 2015 Journal of Asia-Pacific Biodiversity Vol.8 No.1
In order to examine distribution characteristics of freshwater fish in Jeju-do, freshwater fish were examined at 17 stations including three reservoirs, 13 stations in six streams, and one estuary wetland. A total of 396 fish individuals of seven species in four families were collected at the three reservoir stations and Lepomis macrochirus, an introduced species that disturbs the ecosystem, was the dominant species (71.7%). There were 770 fish individuals of 22 species in 15 families collected from the six streams. The dominant species was Chaenogobius urotaenius (22.6%). A total of 26 fish of four species in three families were found at the Hadori wetland and the dominant species was Tridentiger obscurus. There were five species of fish found for the first time in Jeju-do during this study; Micropterus salmoides, Eleotris sp., Tridentiger brevispinis, Redigobius bikolanus, and Scatophagus argus. In particular, Eleotris sp. of Eleotridae had not so far been recorded in Korea.
중국에서 이식한 종어 (Leiocassis longirostris Gunther)의 외부 형태 및 초기생활사
이완옥,김경환,김대희,조용철,김응오 한국어류학회 2004 韓國魚類學會誌 Vol.16 No.1
한국에서 절멸된 것으로 알려진 종어 (Leiocassis longifostris)를 국내에 복원하고, 양식대상종으로 개발하기 위하여 중국에서 도입하여 외부형태를 비교하고, 난발생 과정 및 부화자어의 형태를 연구하였다. 도입된 표본의 계수·계측형질을 국내와 중국에 알려진 문헌과 비교한 결과 큰 차이를 보이지 않았다. 중국에서 도입한 암수 한쌍의 성어에서 채란하였고, 습식법으로 수정하였다. 수정란의 크기는 2.01∼2.10 mm(n=10)이었으며, 알의 형태는 원반형이고, 난막은 무색투명하였으며, 강한 접착력이 있었다. 난황은 담황색이고 유구는 없었다. 수정 1시간 후에 배반이 완성되었고, 1시간 30분 후에 난할이 시작되었다. 수정란의 수온을 21.5∼23.0℃로 유지할 때 30∼50분 간격으로 이후 난할이 계속되었다. 수정 후 상실기는 6시간에 도달하였고, 낭배기는 20시간 20분 후에 완성되었다. 난황 표면에서 관찰되는 특이한 연동운동은 상실기에 시작되어 포배기 말기인 30% epiboly기까지 계속되었다. 수정 75시간 후에 부화에 이르렀고, 부화 직후 자어의 크기는 전장 5.91∼6.10 mm 이었다. 부화 3일 후에 입이 열리고, 수염과 부레가 완성되었으며, 전장 9.07 ∼9.37 mm까지 자랐다. 부화 15일후에는 모든 지느러미가 완성되어 후기자어기 상태이었고, 전장 14.80∼16.50 mm로 자랐으며, 부화 25일 후에는 체형, 체색 그리고 생활습성 등이 성체와 유사하고, 전장은 18.59∼22.35 mm까지 성장하였다. The Long-snout bullhead, Leiocassis longirostris, is an introduced fish from China which had become extinct in Korea. Its morphological characteristics and early life history was studied to obtain useful information required for restoration of the species and also for its utilization as an aquaculture fish. Measurements and counts of specimens introduced into Korea were included in the range of those taken from the known literature of Korea and China. Eggs were obtained by fertilization by wet method in the laboratory using one mature male and female adults of introduced L. longirostris. The fertilized eggs measured 2.01-2.10 ㎜ (n = 10) in diameter. The eggs were diskshaped and strongly adhesive, with colorless transparent membrane. The yolk was pale yellow in color with no oil globule. The blastodisc was formed in about 1 hour and cleavage started around 1 hour 30 minutes after fertilization. The cleavage intervals were about 30-50 minutes at 21.5-23℃. The morula stage was reached at 6 hours, and gastrulation was completed at 20 hours 20 min. after fertilization. Peristalsic movements of the yolk surface started at the morula stage and continued to the blastula stage (30% epiboly). Hatching occurred 75 hours after fertilization, and newly hatched larvae were 5.91-6.10 ㎜ (n = 10) in total length (TL). The mouth was open, and barbels and the air-bladder were completely formed 3 days after hatching, at 9.07-9.37 ㎜ TL. All the fin rays were completely formed and the larvae became a postlarva 15 days after hatching at 14.80-16.50 ㎜ in TL. Body shape, color pattern, and habitat behavior were similar to those in the adult at 25 days after hatching and a size of 18.59-22.35 ㎜ TL.