title: Spatial relations of mercury contents in Pike (Esox lucius) and sediments concentration of the Anzali wetland, along the southern shores of the Caspian Sea, Iran.
abstract: In recent decades, the Anzali wetland has been threatened and destroyed by environmental pollution from several sources. The purpose of this study was to determine the possible relationships between mercury concentrations in Pike and their respective sediments within the assumed multiple activity center scales of Pike (100, 250 and 500 m in radius). To gain a better understanding spatial distribution pattern of Hg in sediments and to pursue the main purpose of this study, kriging (geostatistic spatial interpolation method) was applied. Poor relationships were found between mercury concentrations of Pike and sediments within the assumed multiple activity center scales of Pike. The mercury sediment influence diminished with the increasing radii of assumed activity centers. The results of the present study indicate that fish and sediment mercury concentrations in western parts of the Anzali wetland were low in comparison with the concentrations reported in the literature from other regions.
authors.affiliation: Department of Fisheries and Environmental Sciences, Faculty of Natural Resources and Earth Science, Shahrekord University, P.O. Box 115, Shahrekord, Iran. Electronic address: rasoolzamani@yahoo.com.
authors.forename: Rasool
authors.initials: R
authors.lastname: Zamani-Ahmadmahmoodi
authors.affiliation: Department of Environment, Faculty of Natural Resources, Tarbiat Modares University, Noor, Mazandaran, Iran.
authors.forename: Alireza Riyahi
authors.initials: AR
authors.lastname: Bakhtiari
authors.affiliation: Department of the Environment, INIA, Carretera de A Coruña 7.5 km, 28040 Madrid, Spain.
authors.forename: José Antonio
authors.initials: JA
authors.lastname: Rodríguez Martín
mesh_terms: D000818:Animals; D004784:Environmental Monitoring / Q000379:methods; D017859:Esocidae; D019015:Geologic Sediments; D007492:Iran; D008628:Mercury / Q000032:analysis*; D009792:Oceans and Seas; D014874:Water Pollutants, Chemical / Q000032:analysis*; D053833:Wetlands
chemical_list: D014874:Water Pollutants, Chemical; D008628:Mercury
keywords: Geostatistics; Mercury; Pike (Esox lucius); Sediments; Spatial pattern; Variogram