| File | |
| Title |
両生類幼生の成長におよぼす個体密度の効果について
|
| Title |
Growth Inhibition and Retardation of Gonadal Development in Crowded Tadpoles
|
| Title Transcription |
リョウセイルイ ヨウセイ ノ セイチョウ ニ オヨボス コタイ ミツド ノ コウカ ニツイテ
|
| Creator |
Seto Takeshi
|
| Source Title |
島根大学教育学部紀要. 自然科学
Memoirs of the Faculty of Education, Shimane University. Natural science
|
| Volume | 7 |
| Start Page | 43 |
| End Page | 50 |
| Journal Identifire |
ISSN 05869943
|
| Descriptions |
Tadpoles of Rana nigromaculata were cultured in different population densities ranging from 2 to 50 animals per bowl of one liter of water. Animals raised in crowded bowls inhibited their growth rate as compared with uncrowded groups.
The indication of inhibitory effect was made by measurements of body size and by examinations of gonadal development with respect to representative tadpoles from each experimental group which has variable population density. The crowding of many individuals together brought on the decline in growth rate and retardation of gonadal development as well as failure in occurrence of metamorphosis. However the differences in gonadal development among four groups were not strictly proportional with the variation of their body sizes as a result of growth inhibition. |
| Language |
eng
|
| Resource Type | departmental bulletin paper |
| Publisher |
島根大学教育学部
The Faculty of Education Shimane University
|
| Date of Issued | 1973-12-25 |
| Access Rights | open access |
| Relation |
[NCID] AN00107941
|
