Reproductive biology, length-weight relationship and relative condition of pond raised Tilapia zilli (Gervais)
Abstract
In ‘runted’ populations of Tilapia zilli positive correlations were found between maturation stages and the following: gonadosomatic index, gonad weight, fish weight and fish length. The minimum size at maturity was 9·0 cm in males and 11·0 cm in females. The mean fecundity in the ‘stunted’ females was 2359 eggs and it increased with length (L) weight (HO and depth (D) of the fish. There was, however, no correlation between fecundity and egg size. The results indicated that growth in this ‘stunted’T. zilli population was not isometric. The relative condition factor (Kn) which approached one indicates good condition.
URI
http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8649.1980.tb02758.x/abstracthttp://hdl.handle.net/11295/78257
Citation
Journal of Fish Biology Volume 17, Issue 3, pages 243–253, September 1980Publisher
University of Nairobi
Collections
- Faculty of Health Sciences (FHS) [10387]