Contamination in aquatic ecosystems

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Table of contents

PART I. BIBLIOGRAPHY SYNTHESIS
I.A. AQUATIC CONTAMINATION BY METALS AND PESTICIDES
I.A.1 AQUATIC ECOSYSTEM
I.A.2. CONTAMINATION IN AQUATIC ECOSYSTEMS
I.B. ECOLOGICAL ENGINEERING AS SOURCE OF NATURAL ATTENUATION PROCESSES FOR AQUATIC SYSTEMS
I.B.1. ECOLOGICAL ENGINEERING AND ECOSYSTEM RESTORATION
I.B.2. WETLAND AS FOCUSING SITES FOR ECOLOGICAL ENGINEERING
I.B.3. PHYTOREMEDIATION
I.B.4. BIOTURBATION
I.B.5. COMBINED EFFECTS OF BIOTURBATION AND PHYTOREMEDIATION AS A BIOLOGICAL PROCESS FOR POLLUTANTS REMOVAL IN AQUATIC SYSTEMS
PART II. METHODOLOGY
II. A. MICROCOSM STRUCTURE AND EXPERIMENTAL DESIGN
II. A.1 SAMPLING SITE AND PROCESSING OF SEDIMENT AND PLANTS
II. A.2 EXPERIMENTAL DESIGNS
II. A.3 ECOLOGICAL ENGINERING TOOLS USED
II.B. METHODOLOGICAL TOOLS
II.B.1 CORING SEDIMENT AND SAMPLING OF INTERSTITIAL WATERS AND SEDIMENT PARTICLE
II.B.2 BIOTURBATION ACTIVITY MEASUREMENTS
II.B.3 CADMIUM MEASUREMENT
II.B.4. PHYSICOCHEMICAL VARIABLES OF SEDIMENT AT THE END OF THE EXPERIMENTS
II.B.5. ATRAZINE AND ITS METABOLITES MEASUREMENTS
II.B.6. CALCULATIONS AND DATA TREATMENTS
II. C. ASSESSMENT THE EFFICIENCY OF THE COMBINED BIOREMEDIATION TOOLS BY USING TOXICOLOGICAL BIOASSAY
II.C.1. MICROALGAE STRAIN AND CULTIVATION.
II.C.2. MEDIUM
II.C.3. DETERMINATION OF CHLORELLA GROWTH CURVE FROM DIFFERENT GENERATIONS
II.C.4. CHLORELLA TEST WITH PURE ATRAZINE SOLUTION.
II.C.5. APPLICATION ON SAMPLES FROM EXPERIMENTAL MICROCOSMS.
PART III. RESULTS AND DISCUSSION
CHAPTER III.A. INFLUENCE OF COMBINED BIOTURBATION AND PHYTOREMEDIATION ON CONSERVATIVE POLLUTANT (CADMIUM AS AN EXAMPLE) IN AQUATIC SEDIMENT
III.A.1. BIOTURBATION EFFECT ON T. LATIFOLA’S BIOACCUMULATION RATES
III.A.2. EFFECTS OF TUBIFICID WORMS AND T. LATIFOLIA PLANT ON CADMIUM
MASS BALANCE AND FLUXES
III.A.3. TOXICITY OF CADMIUM AND THE POSSIBILITY TO APPLY THE BIOTURBATION AS A BIOREMEDIATION STRATEGY
CHAPTER III.B. INFLUENCE OF COMBINED BIOTURBATION AND PHYTOREMEDIATION ON A MICRO-ORGANIC POLLUTANT: ATRAZINE
III.B.1. INTRODUCTION
III.B.2. RESULTS
III.B.3. DISCUSSION
III.B.4. CONCLUSION
CHAPTER III.C. COMPARISON OF BIOREMEDIATION EFFECTS ON TWO DIFFERENT TYPES OF POLLUTANTS
III.C.1. TRANSPORT AND BIOAVAILABILITY OF POLLUTANTS EXAMPLES OF
CADMIUM AND ATRAZINE
III.C.2. COMPARISON OF BIOREMEDIATION OF WATER AND SEDIMENT TOXICITY BETWEEN NON-CONSERVATIVE AND CONSERVATIVE POLLUTANTS
PART IV. CONCLUSIONS AND PERSPECTIVES
REFERENCES