초록

AI-Helper

1982년 11월 18일 부터 25일 사이에 해운대 동백섬에 위치한 부산수산대학 해양과학연구소 앞 연안에서 주낚으로 채집된 성숙한 노래미를 이용하여 실험실내에서 인공수정에 의한 난발생과정과 부화자어에 관하여 관찰한 결과를 요약하면 다음과 같다. 난은 구형이며 침성점착난으로 난경은 $1.92{\sim}2.14mm$로 짙은 황색의 유구가 무수히 존재한다. 실내수온 $11.8{\sim}17.9^{\circ}C$(평균 $14.2^{\circ}C$)에서 수정후 463시간만에 부화하였다. 부화직후의 자어는 전장 $6.55{\sim}8.2mm$이며 근절수 12+36=48. 난황의 전단에 큰 유구가 하나 있다. 부화후 3일째의 전장 7.8mm의 자어는 꼬리부분의 $13{\sim}19$번째의 근절부분에 $4{\sim}5$개의 흑색소포 나타난다.

Abstract ▼ AI-Helper

Rock trout, Agrammus agrammus(Temminck et Schlegel) is commonly found at the coast of Korean waters. Mature adult of the rock trout were collected at the shore of Dongbaeksom in Pusan during the period from Nov. 18 to Nov. 25, 1983 through know the early developmental characters. The authors carried...

Rock trout, Agrammus agrammus(Temminck et Schlegel) is commonly found at the coast of Korean waters. Mature adult of the rock trout were collected at the shore of Dongbaeksom in Pusan during the period from Nov. 18 to Nov. 25, 1983 through know the early developmental characters. The authors carried out the artificial insemination in the laboratory on Nov. 24, 1982, and roared the eggs and the hatched larvae. The eggs of this species are demersal and adhesive, and their diameter were varied within 1.92-2.14mm. The color of yolk is light blue in the early developmental stage, and then turned to orange before hatching out. The yolk contained numerous tiny oil globules. Hatchig toot plnace in ca. 463 hours after insemination at $11.8-17.9^{\circ}C$ of water temperature. The newly hatched larvae were elongate in share and 6.55-8.20 mm in total length with 12+26=48 myomers. Many branched melanophores were distributed on the supra-orbital, dorsal double body contour, and peritoneal, and also under the notochord of the tail.