in the present study common kilka from guilan province coastal area (port of anzali) and fish meal produced from it, have been examined to investigate the type and amount of polyaromatic hydrocarbons (pahs). bio monitoring is very important because these pollutants are carcinogenic and mutagenic compounds, if they enter human food chain. sampling process was completed in anzali fishing port. fo...

the main interested food for rutilus frisii kutums in the eastern and western coasts of anzali port is cardium. on the basis of the occurrence method the food items such as crab and balanus also performs an important role in feeding behaviours of fishes in this region. feeding intensity during the period of study (from october 1994 up to march 1995) significantly differs from month to month (p

Abstract Phosphorus (P), nitrogen (N) and organic component are released from the soil into surface bodies by runoff erosion, causing pollution eutrophication of water resources. This study aimed to investigate seasonal changes in loads N P components, matter (OM) Pasikhan River flood normal conditions. Sampling was performed monthly during flow conditions for five events. The concentrations co...