Human Impact
Carbon in Estuaries
Nitrogen in Estuaries
H and O in Estuaries
Sulfur in Estuaries
100

An ecosystem effected by watershed changes

What is an estuary or coastal environment?

100

Carbon isotope used in Conservative Mixing of Stable Isotopes across Estuarine Salinity Gradients: A Conceptual Framework for Monitoring Watershed Influences on Downstream Fisheries Production

What is δ13C?

100

Nitrogen isotope used in Conservative Mixing of Stable Isotopes across Estuarine Salinity Gradients: A Conceptual Framework for Monitoring Watershed Influences on Downstream Fisheries Production

What is δ15N?

100

The relationship between salinity and the isotopes of hydrogen and oxygen

What is a positive, linear correlation?

100

Compound used to measure sulfur concentrations and isotope values

What is sulfate?

200

Human impact on nutrient loading into estuaries

What is an increase?

200

Trend of carbon isotope values across salinity gradient when DIC concentrations are constant 

What is a positive linear correlation?

200

Relative nitrogen concentration and nitrogen isotope value in freshwater when system is eutrophied (high or low?)

What is high?

200

Reason salinity and water isotope (H and O) values correlate

What is a constant concentration? (55.6M)

200

Effect of strong dependence on benthic sources on sulfur isotope values

What are lowered sulfur isotope values?

300

Human impact freshwater inflow into estuaries

What is a decrease?

300

Curve of carbon isotope values in system with fresh to salt ratio of 1:10 compared to system with 5:8 (deeper or flatter?) 

What is deeper?

300

Relative nitrogen concentration and nitrogen isotope value in freshwater when system is pristine (high or low?)

What is low?

300

Trend of water isotopes across salinity gradient if freshwater:oceanic increases (greater or smaller slope?)

What is a greater slope?

300

Trend of sulfur isotope values across salinity gradient in typical estuarine system

What is constant EXCEPT for lowered values freshwater?

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