List of Articles رودخانه حله Open Access Article Abstract Page Full-Text 1 - A study on the diet of Barbus luteus in the Dalaki and Helle Rivers A.R. Pazira S. Vatandost Open Access Article Abstract Page Full-Text 2 - Risk assessment of the heavy metals mercury, cadmium, lead and arsenic in the two species fish Tor grypus and Capoeta capoeta in Helle River from Bushehr laleh Roomiani Mohammad velayatzadeh