ガザミ幼生におけるワムシとアルテミアの給餌時期の検討
書誌事項
- タイトル別名
-
- Influence of the Different Feeding Schedule of Food Organisms for Larval Swimming Crab Portunus trituberculatus.
- ガザミヨウセイ ニ オケル ワムシ ト アルテミア ノ キュウジ ジキ ノ ケントウ
この論文をさがす
抄録
This experiment was conducted to investigate the suitable feeding schedule for different larval stages of swimming crab Portunus trituberculatus when fed rotifer and/or Artemia nauplii enriched with n-3 highly unsaturated fatty acids (n-3HUFA) at zoea 3 and zoea 4 stages. Two feeding experiments were carried out in 1l beakers with duplicate lots, each holding 30 larvae. The molting rate and the inter-molt period in days to reach each larval stage were measured. These biodata were compared with n-3HUFA contents in live foods (rotifer and Artemia). When the zoea 3 stage larval crabs were introduced to the live foods containing n-3HUFA, especially Artemia, the molting rate of the megalopa and the inter-molt period were much improved compared with the zoea 3 stage fed unenriched live foods or when live foods were initiated at the latter zoea 4 stage. It was also found that the incorporation of n-3HUFA content in Artemia (2.7%) was higher than that in rotifer (1.6%), even though both were enriched with the same amount of emulsified oil (EPA28G : 25.0% eicosapentaenoic acid and 10.1% docosahexaenoic acid). Therefore, the enriched Artemia appears to be a better vehicle for fatty acid delivery to the crab larvae. These results suggest that larval crab should be fed Artemia containing n-3HUFA from the zoea 3 stage in order to get a high survival rate for the first swimming crab.
収録刊行物
-
- 日本水産学会誌
-
日本水産学会誌 65 (5), 804-809, 1999
公益社団法人 日本水産学会
- Tweet
詳細情報
-
- CRID
- 1390001206413303424
-
- NII論文ID
- 110003144870
- 10004985097
-
- NII書誌ID
- AN00193422
-
- ISSN
- 1349998X
- 00215392
- http://id.crossref.org/issn/00215392
-
- NDL書誌ID
- 4857727
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- IRDB
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可