Description of the embryonic stages of Penaeus notialis and the influence of some abiotic factors on the species
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abstrak
The embryonic development of the shrimp Penaeus notialis Farfante, 1967 is studied. The duration from spawning to hatching of the nauplii was 14-16 hr. As soon as spawning occurs, a sequence of transformations is observed in the characteristic cell mitosis up to the formation of the embryo which breaks the membrane and emerges as the first naupliar stage. The process of development is very similar to other penaeids and the duration of each stage is characteristic of the species. The influence of salinity and pH on spawning, hatching rate and survival, and the optimal values for each factor were determined.
Penerangan
Abstract only.
Suggested Citation
Fernandez, I., & Oliva, M. (1985). Description of the embryonic stages of Penaeus notialis and the influence of some abiotic factors on the species (Abstract only). In Taki Y., Primavera J.H. and Llobrera J.A. (Eds.). Proceedings of the First International Conference on the Culture of Penaeid Prawns/Shrimps, 4-7 December 1984, Iloilo City, Philippines (p.164). Iloilo City, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center