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- Title
First attempt of interspecific hybridization between the shrimps Penaeus kerathurus Forskäl, 1775 and Penaeus japonicus Bate, 1888.
- Authors
Redón, M. J.; Ros, R. Ma.; Rielo, J. A.; San Feliu, J. Ma.
- Abstract
This paper reports preliminary studies designed to evaluate hybridization through natural mating and artificial insemination between female Penaeus japonicus Bate, 1888 and male Penaeus kerathurus Forskäl, 1775. Although both species were able to mature in captivity, natural copulation was not achieved. Different techniques, including manual squeezing in the base of the fifth pair of pereiopods. electrical stimulation and dissection, were used for the artificial insemination experiments. However, only dissection gave spermatophores. Stained sperm showed no malformations and its viability was very high. Seven out of 10 inseminations (70%) produced eggs, but the development of embryos was abnormal. It is suggested that the high genetic distance between these species is responsible for these results.
- Subjects
SPECIES hybridization; SHRIMPS; BREEDING; CAPTIVE wild animal artificial insemination; REPRODUCTIVE technology; ELECTRIC stimulation; VETERINARY dissection; SPERMATOZOA; AQUACULTURE; PENAEUS kerathurus
- Publication
Aquaculture Research, 1997, Vol 28, Issue 4, p271
- ISSN
1355-557X
- Publication type
Article