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애기물달팽이(Austropeplea ollula)의 생식세포 형성 및 생식시기에 관한 연구
강태완 春川敎育大學校 1995 論文集 Vol.35 No.-
북한강 상류에 위치한 의암호로 유입되는 소하천에 서식하는 애기물달팽이 (Austropeplea ollula)의 생식시기를 규명하기 위하여 1994년 3월부터 10월까지 월별로 생체 중량의 백분비 변화를 비교하였고, 생식소 내부 조직의 변화를 검경하여 조사하였다. 1. 애기물달팽이(Austropeplea ollula)는 자웅동체(monoecious)이다. 2. 생체 중량의 백분비는 춘계인 3월 (45.5%), 4월(48.9%)과 추계인 9월(51.9%), 10월(55.8%)이 높은 비율을 나타냈고, 하계인 5월(39.1%), 6월(38.8%), 7월(38.5%), 8월(49.3 %)에는 낮은 비율을 보이고 있다. 3. 생식소 내의 난낭은 4월 하순 이후부터 방란하면서 점차 위축되었고, 9월 중순부터 새로운 결합조직이 점차 생식소 내에 생성되었다. 4. 애기물달팽이의 방란시기는 4월 하순부터 9월 중순까지 계속되었다. In this study, changes of biomass to total weight and histological changes of the Austropeplea ollula which inhabited in the Gonggi-ch'on, Kang won-do, were investigated during the period from March to October, 1994. The results of these investigations were summarized as follows : 1. Austropeplea ollula is a monoecious. 2. The rate of biomass to total weight was 48.9%, in April, and 38.5% in July. 3. The connective tissue of gonads was gradually increased and egg sac was constracted by spawning from the end of April. 4. The spawning season of Austropeplea ollula was from the end of April to mid September.
물달팽이(Radix auricularia coreana)의 生殖細胞 形成 生殖時期에 관한 연구
姜泰完 춘천교육대학교 과학교육연구소 1989 과학교육연구 Vol.15 No.-
In this study, the biomass, the size of eggs and histological changes of the Radix auricularia coreana which inhabited in the Uiam lake, Kang Won Do, were investigated during the period from March to December, 1988. The results of these investigations were summarized as follows : 1. R. auricularia coreana is a monoecious. 2. The rate of biomass to tatal weight was 71.3% in March, and 50.8% in June. 3. The shape of immature eggs are globe. And the mean diameter of eggs was maximum(196.3μ)in July. 4. The connective fissue of gonads was gradually increased and egg sgc was constracted by spawning from mid April. 5. The spawning season of R. auricularia coreana was from mid April to mid September.
주름다슬기(Semisulcospira forticosta)의 생식세포 형성 및 생식시기에 관한 연구
강태완 춘천교육대학교 과학교육연구소 1996 과학교육연구 Vol.19 No.-
In this studies, histological changes of the semisulcospira forticosta which inhabited in the Hong-ch'o˘n River, Kang won-do, were observed during the period from March to October in 1995. The results of these investigations were summarized as follows : 1. Semisulcospira forticosta was a gonochorism, and ovoviviparity. 2. Young melania snails of S. fortcosta were discharged from the mid April to the end of August.
Semisulcospira gottschei (v. MARTENS)의 生殖 時期에 關한 組織學的 硏究
姜泰完 춘천교육대학교 과학교육연구소 1986 과학교육연구 Vol.13 No.-
In this study, histological changes of the Semisulcospira gottschei (V. MARTENS) which inhabited in the Uiam Lake, Kang Won-do, were investigated during the period from January to December, 1985. The results of these investigations were summarized as follows: 1. Semisulcospira gottschei is a gonochroism, and a ovovivi-parity. 2. According to the every months work the female brood chamber had been filled with fertilized eggs and young melania snails. The connective tissue was gradually increased by discharging young melania snails. 3. The breeding season of S. gottschei continued through the year. But the young melania snails were more discharged from mid April to mid September.
Anodonta fucudai MODER 의 生殖細胞 形成 및 生殖時期에 關한 硏究
姜泰完 춘천교육대학교 과학교육연구소 1982 과학교육연구 Vol.9 No.-
In this study, the wight of gonads, the size of eggs and histological variation of the Anodonta fucudai MODER which inhabited in the Uiam lake, Gang Won Do, was investigated during the period from April 1981 to March 1982. 1. A. fucudai is dioecious. 2. The rate of biomass to total weight of gonads was 70.61% in August, and 47.98% in October. 3. The shape of immature eggs are globe. And the mean diameter of the eggs was gradually incresed from 176.0μ in August. 4. The gonad with connective tissue and egg sac in August. But connective tissue was gradually incresed and egg sac was constracted. 5. The spawing season of A. fucudai was from August to September.