Proceedings - Teaching and Learning Centre - Simon Fraser ...

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Fraser River Action Plan 3rd Research Workshop Objectives - Spatial and seasonal (inter-annual as well) variations in biological variables (nutrients and biomass) on the mudflat - Ecological processes — interaction between the water column and mudflat Sampling & Data Collected A) Mudflat sampling (twice a month, April - Sept; once a month, Sept - March) - Benthic biomass — chl a - Porewater nutrients: nitrate, ammonium, urea, phosphate - Organics (not analyzed) B) Water column (twice a month, April - Sept; once a month, Sept - March) - Biomass — chl a - Nutrients: nitrate, ammonium, urea, phosphate - Suspended load (not analyzed) - Particulate organics (not analyzed) - Dissolved oxygen Page 276
Fraser River Action Plan 3rd Research Workshop A0 - Contaminated Site • The lowest chl a biomass Conclusions • Parallel temporal change to A14: still under the effect of contamination, but is recovering • No apparent trend in NH4 over time — recovery from organics contamination may have passed the fastest stage Water Column During a Tidal Cycle • O2 is not low enough to be suffocating to juvenile fish • Chl a loss from the water column — benthic animal feeding • Nutrients are released from sediments — the Bank is a nutrient source for the Strait of Georgia Page 277
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PROCEEDINGS 3rd RESEARCH WORKSHOP F
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TABLE OF CONTENTS Participants ....
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Development of a Citizen’s Monito
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Fraser River Action Plan 3rd Resear
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SESSION 1 PULP MILL EFFLUENT ISSUES
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SESSION 4 AGRICULTURAL ISSUES
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SESSION 5 BIOLOGICAL INDICATORS
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Page 239: SESSION 6 ESTUARY ISSUES
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Proceedings - Teaching and Learning Centre - Simon Fraser ...

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