Identification and determination of macro benthic community’s diversity and density in the Gamasyab River (Kermanshah Province)

karami, Mohsen (2014) Identification and determination of macro benthic community’s diversity and density in the Gamasyab River (Kermanshah Province). Masters thesis, University of Zabol.

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In this study, density and biomass of macro-benthos community in the Gamasyab River, in Kermanshah Province were studied. Therefore, samples since July 2013 until September 2014 as every two months (six sampling period) at six stations with three replications to be. After sampled and fixed organisms in formalin 4%, in order to separation, identification and enumeration were transported to the laboratory. In this research physical and chemical characterization including water flow, flow rate, temperature, depth, width, pH, water flow rate, oxygen and EC were also assessed. Also Grain size bed sediment, determine soil texture and total organic matter (TOM) in the sediments was measured. In addition to determining the level of pollution in the river Hilsenhoff index (Hilsenhoff) was used in this study, 10 families of Macro benthic invertebrates in the 10 orders were identified in which families Gammaridae, Lymnaeidae and Chironomidae Respectively, were the dominant families. Investigation in seasonal variations density and biomass macro benthic invertebrate's detected suggesting density and biomass of maximal in September and the lowest was in January. Also, station 6 and 4, respectively had the highest and lowest density and station 1 and 3, respectively had the highest and lowest biomass. Also, in this study, Changes qualitative indicators (Hilsenhoff) and Richness and diversity indicators (Simpson, EPT and EPT to Chironomidae) as well was investigated and Was determined Due to the species present in this river, That are indicators of polluted waters, Gamasyab River have water qualitative characteristics is unsuitable And Except from the 6 stations of the biological indicators and Have were quality hygienic from stations of Rest وfishery of value is and quality Suitable not appropriate.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Benthic Community, Total Organic Matter, Grain Size, Diversity indices, Gamasyab, Kermanshah
Subjects: S Agriculture > SH Aquaculture. Fisheries. Angling
Depositing User: admin admin1 admin2
Date Deposited: 20 Jun 2016 07:37
Last Modified: 20 Jun 2016 07:37

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