INCUBATION OF EGGS AND EMBRYONIC DEVELOPMENT OF THE FIDDLER CRAB, UCA LACTEA (DECAPODA, BRACHYURA, OCYPODIDAE)

Author: Yamaguchi, Takao

Source: Crustaceana, Volume 74, Number 5, 2001 , pp. 449-458(10)

Publisher: BRILL

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Abstract:

The average incubation period of Uca lactea is 15.4 days. Fifteen stages of embryonic development were categorized by following the daily progress. On the first day, newly laid eggs became 32-celled eggs. The longest diameter of undivided eggs was 0.24 mm, which increased to 0.32 mm before hatching.

La période d'incubation moyenne de Uca lactea est de 15,4 jours. Quinze stades de développement embryonnaire ont été répertoriés grâce à un contrôle journalier. Le premier jour, les oeufs nouvellement éclos avaient atteint le stade 32-cellules. Le diamètre le plus grand des oeufs non divisés était de 0,24 mm, et augmentait jusqu'à 0,32 mm juste avant l'éclosion.

Document Type: Research article

DOI: http://dx.doi.org/10.1163/156854001750243036

Affiliations: 1: Aitsu Marine Biological Station, Matsushima-cho, Amakusa-gun, Kumamoto 861-6102, Japan

Publication date: 2001-05-01