Hemiray Bifurcation and its effect on swordtail caudal selection...
© Alan S. Bias
Permission granted for nonprofit reproduction or duplication of photos and text with proper credit for learning purposes only.
Hemiray Bifurcation can quickly be defined as: "A division or fork in the rays of male and female guppy fins."
|Swordtail Female with Hemiray Bifurcation evident|
|Bifurcation and effect on fin edge|
|Effect of bifurcation on round caudal|
|Type 1 Swordtail|
|Type 2 Swordtail|
|Type 1 Swordtail showing|
about 1/2 of mature length
|Lower Swordtail "pencil tail"|
|Lower Swordtail not yet mature|
|Lower Sword exhibiting weakness at bifuracations|
|Young Vienna Type Double|
1. Growth Control in the Regenerating Zebrafish Ontogenetic and Fin
Stephen L. Johnson* and Paul Bennettt
2. Position dependence of hemiray morphogenesis during tail fin regeneration in Danio rerio
C. Murciano a, J. Pérez-Claros b, A. Smith c, F. Avaron c, T.D. Fernández a, I. Durán a, J. Ruiz-Sánchez a, F. García a, J. Becerra a, M.-A. Akimenko c, M. Marí-Beffa a,
Breeding to a defined standard or personal goal is often
what initially attracts us to guppies as a breeder .
Embarking upon a genetic understanding of those fish we choose to cull
and those we decide to retain within a breeding program
often makes the difference in breeder perseverance...