How Do You Know an Ecosystem is Healthy?

Slides:

Advertisements

Similar presentations

Water Monitoring Lab. Why Test Water Quality? Water testing allows scientists and citizens to have a full understanding of what is affecting their stream.

Advertisements

Health of water determined by the balance between physical, chemical and biological variables. Physical variables=temperature, turbidity, and water movement.

Assessing Aquatic Ecosystems & Measurement. Aquatic Ecosystem Assessment The health of an aquatic ecosystem can be determined by examining a variety of.

Fundamentals of River Restoration and Salmonid Fisheries OWEB, 1999, Fundamentals of River Restoration and Salmonid Fisheries OWEB, 1999, Fundamentals.

Phosphorus Cycle Geochemical Cycles continued. Objectives: Describe the process of cycling phosphorus throughout environment. Describe the role that fertilizer.

Indicators of Water Quality. Turbidity Definition Definition: measure of the degree to which water looses its transparency due to the presence of suspended.

Water Quality. Indicators of Water Quality 1) Nitrates a) Eutrophication b) Algae Blooms 2) pH 3) Turbidity 4) Temperature 5) Dissolved Oxygen 6) Bioindicators.

Water Quality ESI Stream Water Mass after collecting by filtration Evaporate water after filtering, determine mass of residue TDS by conductivity since.

Healthy Rivers Water Chemistry Dissolved Oxygen Why is Dissolved Oxygen (DO) Important? Why is Dissolved Oxygen (DO) Important? Aquatic organisms need.

Physical Properties Discharge rate, temperature and other physical attributes of the stream.

Water Quality Index Announcements n HOURS due Monday! n Still an opening for Science Night.

Are You Smarter Than a 5 th Grader? 1,000,000 5th Grade Topic 1 5th Grade Topic 2 4th Grade Topic 3 4th Grade Topic 4 3rd Grade Topic 5 3rd Grade Topic.

Water Quality and Water Testing. Studies of streams may involve the following measurements and analysis 1.Physical Parameters of the Stream 2.Biological.

How do you know water is healthy?. Water Quality Standards  Rules set by the Environmental Protection Agency (EPA)  Clean Water Act of 1972 – set laws.

The Blue Planet The Blue Planet Indicators of Water Quality.

Healthy Rivers Water Chemistry Dissolved Oxygen oxygen gas dissolved in liquid water. Why is Dissolved Oxygen (DO) Important? Why is Dissolved Oxygen.

2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt pH NitratesTemperatureTurbidity Dissolved.

Warm Up Complete the text dependent questions for the Water Scarcity text. Do your own work. Homework: Read 16C-21C answer ?’s 1-3, 5 p22C Read 24C-31C.

National Wildlife Refuge San Diego, California. About the Refuge.. Established in 1996 Stretches from Jamul to communities in Spring Valley Over 11,152.

 Salinity: Salinity is the concentration of dissolved salts in the water and is an important element of a  habitat. Aquatic animals are adapted to living.

NCSCOS 3.0 Science 8.  What factors indicate the QUALITY of Water?  How do we know if the water in lakes, ponds, streams, etc., is healthy or not? 

Eutrophication By Oli Murphy A Team Pickles Production.

All Sewers Lead to the Ocean Exploring and Measuring Stormwater Quality SciREN Coast February 12, 2015 Kellen Lauer and Kathleen Onorevole.

Indicators of Water Quality

Unit 7 Hydrosphere Day 11 Focus: Water Quality Indicators Turn in late flash cards 9-19 and projects NOW! Warm-up – ½ sheet – Analyze the table.

Dissolved Oxygen Pollution Types.

Indicators of Water Quality Unit 4 – Ch 6

EUTROPHICATION By: Annette Miles.

Water Quality Rice Creek Watershed.

8.E.1 Understand the hydrosphere and the impact of humans on local systems and the effects of the hydrosphere on humans. 8.E.1.3 Predict the safety and.

Point vs Nonpoint Source Pollution Water Quality Indicators notes

EVALUATING WATER SYSTEM HEALTH

Lower Basin of the St. Johns River Jacksonville, FL

Fundamentals of River Restoration and Salmonid Fisheries OWEB, 1999, Fundamentals of River Restoration and Salmonid Fisheries Dylan Castle.

A. low levels of salt B. low levels of arsenic

EFFECT OF ALGAL BLOOM ON FRESHWATER ECOSYSTEMS

Water health & pollution

Section 2: Cycling of Materials

Water Test Kit.

Why do the people of Jaffrey City think there is a problem in Jaffrey Lake?

Section 2: Cycling of Materials

Plant Nutrients Diego and lorenzo.

Section 2: Cycling of Materials

2.1 Monitoring Water Quality

Abiotic Factors Affecting Aquatic Systems

WATER QUALITY TESTING.

How do you know water is healthy?

Eutrophication.

Eutrophication Nitrogen and Phosphorus are often limiting factors in plant growth. Therefore they are used in fertilizers to improve plant growth. However,

How do you know water is healthy?

Nutrients & Plant Health

Lake Clear Victor Castro Eastern Region

Section 2: Cycling of Materials

Water Pollution.

Nutrient Limitations.

Chapter 5 Objectives List the three stages of the carbon cycle.

Indicators of Water Quality

Carbon, Nitrogen & Phosphorus Cycles Ch. 5.2

Indicators of Water Quality

Indicators of Stream Health

Question: Why should we monitor the quality of our rivers, lakes and streams? Water Quality A measure of the physical, chemical and biological factors.

The Cycling of Materials

How Do You Know an Ecosystem is Healthy?

Invertebrates in the St. Johns River

Living Things in the St. Johns River

How Do You Know an Ecosystem is Healthy?

Shapes and Patterns In Nature

Presentation transcript:

How Do You Know an Ecosystem is Healthy?

There are many factors used to assess health Turbidity Dissolved Oxygen Nutrients (Phosphorus, Nitrogen) Bioassays

Turbidity Measure of suspended particles Particles can be silt, soil, floating vegetation and organisms Can be affected by rainfall Can be caused by humans: runoff, erosion, boating

Dissolved Oxygen Concentration of Oxygen in the water Critical for organisms to live Fluctuates daily and seasonally Must be above 5.0 mg/L to support wildlife Decaying material consumes Oxygen

Nutrients Nitrogen and Phosphorus are important measures High Nitrogen and Phosphorus amounts can increase algal growth Humans can contribute nutrients through excessive fertilizer use

Bioassays Some species are important indicators of health Examine ecosystem to look for “normal” conditions Some organisms (e.g., algae) will increase in population when the system is out of balance

References Pinto, G., Bielmyer-Fraser, G.K., Goldberg, N., Ouellette, A., Le, A., Pyati, R., Zoellner, B., Closmann, C. (2018/19). 2019 State of the River Report for the Lower St. Johns River Basin, Florida: Water Quality, Fisheries, Aquatic Life, & Contaminants (LSJR). Prepared for the City of Jacksonville, Environmental Protection Board. https://sjrreport.com.