Population status of Gold Fish carassius auratus in restored East Hammar Marsh, Southern Iraq

الملخص EN

the present study showed that Carassius auratus have a long life span, with average of 6-7 years.

The population ed in the Hammar marsh throughout the year.

The monthly dominated by age group 3 and 4 years, which accounted for catch.

The seasonal pattern of the relative condition factor hat maximum value coincided with pre-spawning period.

h rates of C.

auratus in East Hammar differ from those in other regions of its distribution.

This may be related to tions in the ecological conditions or to the applied method e estimation.

Fully mature specimens (maturity stage 6 and fined as those that were ready to reproduce.

They reached n the second year of life .The monthly percentage of in different maturity stages and direct observation of C.

auratus population in Hammar Marsh revealed that f this species took place in March to September suggesting nt individuals do not mature at the same time and that there nded spawning season.

Moreover the presences of all ages of C.

auratus in the investigated area indicates that arsh is the spawning ground of this species and that there nce of spawning migration.

Fecundity varied from a mean eggs per female at 110 mm in total length to a mean of gs per female at 309mm.

It was correlated significantly with ngth, body weight and gonad weight.