2010 Fiscal Year Final Research Report
Mechanisms and prevention of malformation in Pleuronectiformes-determination of optimal growth rate before metamorphosis-
| Project/Area Number |
20580202
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
General fisheries
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
TAGAWA Masatomo Kyoto University, フィールド科学教育研究センター, 准教授 (20226947)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
ARITAKI Masato 水産総合研究センター, 宮古栽培漁業センター, 場長 (00426298)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | カレイ類 / 形態異常 / 甲状腺ホルモン / タイミング説 / 耳石標識 / 成長履歴 / 両面有色 / 白化 |
|---|
| Research Abstract |
Although flatfish juveniles are released into the sea all over Japan to enhance the flatfish resources, malformed juveniles of various types occurs at a high percentage when rearing. Individual growth history was examined to clarify the optimal growth rate to become normal juvenile. From the result on spotted halibut, it is recommended to enhance the growth to attain 8mm in total length by 18 days after hatching (before becoming flatfish shape). This is because the effect of thyroid hormone was different among individuals having different body size.
|
