EVALUATING WATER SYSTEM HEALTH

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Presentation transcript:

EVALUATING WATER SYSTEM HEALTH

Warm up How do nutrients move in the ocean as a result of upwelling? A. from deep, colder areas to warm, shallow areas B. from warm, shallow areas to deep, colder areas C. from the ocean floor into estuaries D. from estuaries to the ocean floor

Water system A water system is a body of water

Indicators of water system health Signs that the water is healthy: Physical, chemical and biological indicators

Physical indicators Temperature- moderate to cool, cold water can hold more dissolved oxygen Dissolved oxygen (DO)- the amount of oxygen dissolved in the water pH- how acid or basic the water is- most are 7.0 neutral to slightly basic (8.0-9.0) Turbidity- how clear the water is- high turbidity is unclear water

Chemical indicators Nitrates- nitrogen compounds used for growth by plants and algae Can cause algal blooms

Biological indicators Bio- living Bio-indicators- organisms that are used to assess ecosystem health The presence of certain species in water can show that the water is healthy Example- trout

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