Starting date: Month 1 Ending date: Month 21
Name of the partner responsible: UWM
Person-months per partner: Excelfish (3), Piscival (12), FFP (6), VV (6), FUNDP (3), UWM (12)

Objectives
This work package aims to compare the fecundity, ovulation and fertilization rates of pikeperch breeders held in different stocking conditions (ponds, cages and tanks) and the inflence of breeder stocking conditions on the production and quality of gametes and larvae.

Description of work

F eeding with formulated food or with prey fish

Deliverables
The experiment will be conducted during two successive years in order to take into consideration the interannual variations in pikeperch larval quality. Deliverables of the 1st and 2nd years will include the comparison of breeder performances in terms of fecundity and fertilization rates as well as egg and larval quality, after spawning and hatching, respectively, as well as after one month of rearing under standardized conditions.

Expected results and relevant corresponding milestones
The major expected results are:
- an evaluation of the egg and larval quality in pikeperch reared under semi-natural conditions (ponds with prey fish) which can be used as a referential for the comparison with the other WPs;
- an evaluation of the relative importance of stocking and feeding conditions on breeder performances.