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- 저자 : 백재민 ( Jae Min Beak ) (검색결과 2 건)
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김치홍 ( Chi Hong Kim ),이완옥 ( Wan Ok Lee ),이종하 ( Jong Ha Lee ),백재민 ( Jae Min Beak ) 한국어류학회 2011 韓國魚類學會誌 Vol.23 No.2
In this study we described reproduction study of Korean endemic species, Acheilognathus koreensis and three other acheilognathinae species A. signifer, Rhodeus pseudosericeus, and R. uyekii. Morphology of egg shape and larvae just hatched is unique by the species respectively. There is no interrelation factor between size of female and number of spawned eggs per one time. Minium water temperature for spawning of A. koreensis was observed in 13.0℃ having low hatching rate with 43.5 percent. The egg of A. koreensis began to hatch approximately 79 hours after insemination. As higher as water temperature until 22.0℃ hatching elapsed time for developing eggs of A. koreensis and three species in this study was shortened. A. koreensis was grew up to be a adult enough which can be join to new production for three hundred days after hatching with 52.4 mm in total length. This reproduction study will be applied to preservation of korean endemic fresh water fishes basically.
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고유종 큰줄납자루, Acheilognathus majusculus의 난 발생과 초기생활사
김치홍 ( Chi Hong Kim ),최웅선 ( Wung Sun Choi ),김대희 ( Dae Hee Kim ),백재민 ( Jae Min Beak ) 한국어류학회 2014 韓國魚類學會誌 Vol.26 No.1
한국 고유종인 큰줄납자루 Acheilognathus majusculus의종 보존을 위한 기초 자료를 확보하기 위해 난 발생과 자어의 성장을 관찰하고 초기생활사 특성을 논의하였다. 수정란은 둥근 타원형으로 평균 장경이 2.12mm(2.08~2.18 mm), 단경이 1.86mm(1.80~1.98 mm)이며 담황색 난황을 가진 분리침성란이다. 개체 당 산란 수는 40~112개(평균 72개)였고 수정란은 수온 18±1.0℃에서 수정 후 43시간 만에 부화하였다. 부화 직후 자어의 크기는 4.23mm이고 형태적으로 납자루속의 자어 특성을 공유하고 있으며 자어 시기의 S자 운동은 없었다. 부화 후 25일 경에 소화기관이 완성되고 외부 먹이를 먹을 수 있어 자연에서 조개로부터 부출하는 시기로 추정된다. 만 1년 후에는 재생산이 가능한 크기로 성장한다. The egg development and early life history of Acheilognathus majusculus which is Korean endemic species from Yeong river were observed under the controlled water temperature, 18.0±1.0℃. Fertilized eggs are opaque yellow in color and round oval shaped measuring 2.12 (2.08~~2.18) mm in length and 1.86 (1.80~~1.98) mm in breadth. The number of eggs averaged 72 (40~~112) per an oviposition. The eggs of this species began to hatch about forty three hours after insemination and the total length of larvae was 4.23 mm mean. S form moving of larvae were not observed during larval development. The larvae reached at the heterotrophic stage about twenty-five days after hatching. It is estimated that the larvae was comming out from freshwater bivalve since that time in nature. A. majusculus was grew up to be adult stage enough which can be join to new production for three hundred days after hatching with over 67.8 mm in total length.
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