Title Evaluation of egg quality in the Japanese eel, Anguilla japonica, by individual rearing method
Authers Tatsuya UNUMA,Kazuharu NOMURA
Keywords eel, egg quality, hatching, survival, microplate
Citation Bull. Fish. Res. Agen. supplement No. 5, 51-55, 2006
To improve the quality of eel eggs, it is essential to determine correctly the parameters associated with egg quality such as the rates of fertilization, hatching and survival. The method for assessing these parameters needs to be easy and stable. We found that eel larvae hatched in small wells of tissue-culture microplates (one larva in one well) survived beyond the completion of yolk absorption without the need of removing dead larvae, changing the water or feeding. Using this individual rearing method, rates of fertilization, hatching and survival can be determined successively in the same individuals with minimum management.
URI http://www.fra.affrc.go.jp/bulletin/bull/bull-b5/13.pdf