Feeding Common Carp Fish (Cyprinus carpio) on Natural Foods (Algae,Phytoplankton, Zooplankton and Others) on Tigris River in Mosul Dam /Duhok, Kurdistan Region of Iraq

Abstract

This study is the only study research that has been done on Tigris River in Mosul Dam at Khank Fish Hatchery in Sumel District (Duhok Governorate, Kurdistan Region of Iraq) This research is the only research that has been done on Tigris River, and it needs more study should have be done on it because the climate change has already impact on it and it appear a new species.of fish that impact negatively on balance of fish species It is selected the part of the Dam that located at the beginning of the Tigris River (Duhok Governorate) because of the safety and fresh and clean water. This part is consider the best part of raising fish with cage fish culture because we set up many circle cage fish culture on it. Also, we used Fish hatchery pond (Indoor), all these reason help us to succeed our study in terms of environment, health and economic.aspects The main aspect is to Keep Common Carp Fish in Ceramic pond without feeding them any Artificial Feed (Feed concentrate); only.depending on natural feeds (algae, Phytoplankton and Zooplankton) It divided fish into two group, one group include (6 fish) with weight (18.8 Kg), and the two group include (9 fish) with weight (27.5 Kg). Furthermore, the water is supply into ceramic pond with level (3L/Min).