Dissertation > Agricultural Sciences > Aquaculture, fisheries > Aquatic Resources > Aquatic Resource Science > Fisheries resources in ecology

Study on Fishery Resource and Ecology of WuLanNuoer Reservoir in Inner Mongolia

Author ZhuCunLiang
Tutor ZhangYu
School Inner Mongolia Agricultural University
Course Animal Production and Management
Keywords Fishery resources Type of nutrition Ecological Management The Ulan Noel Reservoir
CLC S931.1
Type Master's thesis
Year 2008
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This article Current Water Quality the内蒙古乌兰诺尔reservoir , part of the biological factors , the fish community structure and fisheries resources dynamically conduct a comprehensive study , based on comprehensive evaluation of the nutritional status and the state of the environment of the reservoir , the reservoir fishery resources reasonable use and ecological management of the fishery environment provide a theoretical basis . The main results are: (1) the reservoir 7 points out of water of an average water depth of 152.06cm , the average water temperature of 11.4 ° C ; the average turbidity 20.89FTU ; pH value to 7.92 ; the average DO content of 7.11mg / L ; ALK and HD 11.67mmol / L and 6.04 mmol / L . NH4 ( NH3 ) - N annual mean concentration of 1.384mg / L NO3 - N 0.474mg / L NO2 - N 0.079mg / L , PO43 - P 0.187mg / L , the TP for 0.159mg / L , TN as 1.233mg / L. Phytoplankton total of 30 species, the biomass average wet weight of 7.88 mg / L ; dominant phytoplankton biomass per Cyanophyta and Chlorophyta . Zooplankton total of 28 , the average biomass of 3.86mg / L , copepods gt ; the Cladocera GT ; the rotifers gt ; protozoa. Zooplankton and phytoplankton biomass no significant correlation ( p GT ; 0.05 ) , rely solely on the zooplankton on phytoplankton can not be effectively controlled . Reservoir fish about 14 kinds of main economic fish for carp , carp, catfish and red fins Culter , according to the actual situation in which the three species of fish were analytical determination . From an economic perspective or from reservoir fisheries ecological point of view , the fish population in the reservoir unreasonable structure . According to the characteristics of the water chemistry , various biological biomass and types of indicators to determine water quality - eutrophic , and continue to eutrophic development trend . Proposed to strengthen phytoplanktivores fish stocking , adjust the structure of the small carnivorous fish , in order to strengthen the use and output of nutrients in water , both to increase income , but also to protect the environment . And proposed of fisheries environmental protection ecology countermeasures for the sustainable development of reservoir fisheries provide a theoretical basis and practical guidance .

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