IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

The uses of unusual tilapia in the laboratory (Abstract)
Scott, A.G. (1989). The uses of unusual tilapia in the laboratory (Abstract), in: De Pauw, N. et al. (Ed.) Aquaculture: a biotechnology in progress: volume 1. pp. 573
In: De Pauw, N. et al. (Ed.) (1989). Aquaculture: a biotechnology in progress: volume 1. European Aquaculture Society: Bredene, Belgium. ISBN 90-71625-03-6. 1-592 pp., more

Available in Author 
Document type: Conference paper

Keyword
    Marine

Author  Top 
  • Scott, A.G.

Abstract
    Recent developments in the laboratory culture of tilapia have produced several "unusual types" of tilapia, mainly through the use of hormonal sex-reversal of broods or batches of fry. The use of these tilapia has, in the past, been confined predominantly to the production of monosex fry for commercial culture, and indeed a potential new method for the commercial production of 100% YY male O. niloticus is discussed. However, these tilapia have other uses, some of which are illustrated. In O. niloticus the use of hormonal sex-reversal and gynogenesis has enabled the production of tilapia which produce 100% male offspring (the "YY" male tilapia: produced by gynogenesis on the eggs of a phenotypically female, sex-reversed O. niloticus), and the production of tilapia which produce 100% female offspring (phenotypically male sex-reversed tilapia: produced by oral dosage of 17 alpha-methyltestosterone). These monosex-producing fish have been used in three ways: 1) in morphometric investigations; 2) in the study of the effects of sex-influencing hormones; and 3)in the analysis of the sex-determining mechanisms in tilapia. Further potential uses of these, and similar fish, are discussed.

All data in IMIS is subject to the VLIZ privacy policy Top | Author