만경강의 삼천에 서식하는 점줄종개 Cobitis lutheri의 성장과 산란생태에 대해 조사하였다. 연령은 산란기인 7월을 기준으로 1년생은 전장 40~60 mm, 2년생은 전장 60~80mm, 3년생 이상은 80~110mm로 추정되었다. 성비($$)는 0.78이었고, 암컷이 수컷보다 20~30mm가 더 컸다. 이차성징인 골질반(lamina circularis)은 만 1년이 되면서 생성되었으며, 수컷은 성숙 및 산란기인 4월부터 9월까지 반문의 성적이형을 보였다. 산란성기는 수온이 24~26℃가 되는 7월 초부터 중순까지로 추정되었다. 성숙한 암컷의 포란수는 1,127±453개, 난경은 1.09±0.02mm였다.Growth and spawning ecology of Cobitis lutheri (Teleoste: Cobitidae) were investigated in the Samcheon Stream, Mangyeong River, Jeollabuk-do, Korea from 2005 to 2006. Age group of C. lutheri estimated from the total length indicated that the 40~60 mm group is 1 year old, the 60~80mm group is 2 years old, and the 80~110 mm group is 3‹years old. The sex ratio ($$) was 0.78, and the female was 20~30 mm larger than the male. Lamina circularis at the base of pectoral fins in the males as a secondary sexual character was created 12 months after hatching. A change of lateral coloration of males was observed from April to September. The spawning season was early to middle July with water temperatures of 24~26℃. The average number of eggs was 1,127±453 with the egg diameter of 1.09±0.02 mm.
$$ : 원문참조