A method for reducing the thickness of the outer egg membrane of the Japanese mitten crab Eriocheir japonica to improve the normal zoeal larvae hatching rate of in vitro artificial fertilized eggs

Lee, Tai Hung

Aquaculture, 2011, 318(1-2), 176-179

Permalink : https://hdl.handle.net/2115/45749

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アクセス権
open access
URI
https://hdl.handle.net/2115/45749
タイトル
A method for reducing the thickness of the outer egg membrane of the Japanese mitten crab Eriocheir japonica to improve the normal zoeal larvae hatching rate of in vitro artificial fertilized eggs
著者
著者名
Lee, Tai Hung
言語
英語
キーワード
Egg membrane
artificial fertilization
hatching rate
crab
decapod
Eriochier japonica
発行日
2011-07-27
出版者
Elsevier
収録物名
Aquaculture
巻(号)
318(1-2)
ページ
176-179
抄録
This study was an attempt to prove that the thickness of the outer egg membrane is the key factor that contributes to the normal zoeal larvae hatching rate of the in vitro artificially fertilized eggs of the Japanese mitten crab Eriocheir japonica by artificially stretching and thinning the outer egg membrane with the help of water surface tension. The results showed that the artificially thinned outer egg membrane became six times thinner. In addition, the normal zoeal larvae hatching rate of the in vitro artificially fertilized eggs rose from 10% to over 66% after the thinning treatment. Discussion focuses on the mechanism of this thinning phenomenon, the role the thinned outer egg membrane plays in the increase of the normal zoeal larvae hatching rate of the in vitro artificially fertilized eggs and the utilization of this particular outer egg membrane thinning method.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0044-8486
NCID
AA00543624
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1016/j.aquaculture.2011.05.011