Bulletin of the Sea Fisheries Institute, Gdynia, 3. p. 23-30
Abstract:
The mature section of the asp population in the Międzyodrze waters is comprised
primarily of individuals ranging in age from five to seven years. The proportion of mature
males to mature females is nearly 1:1. The absolute fecundity of asp ranges from 63 044 to
324 833 eggs. The dependence of absolute fecundity on female length and weight was nearly
linear. Absolute fecundity also increased with the age of the fish, although this correlation was
much weaker. Relative fecundity was in the range of 35.11-107.94 eggs per g of female body
(without viscera). No significant correlation was confirmed between relative fecundity and
the length, weight or age of the investigated asp.
