How Do You Know an Ecosystem is Healthy?

Slides:

Advertisements

Similar presentations

- Environment - Climate - Landscape - Land use - Local Population (animals and humans) Depends on…

Advertisements

General Chemistry Element –composed of atoms Nucleus –protons (+) and neutrons (0) Electrons (-)

LIVING SYSTEMS WATERSHEDS

+ 2.2 Measuring Abiotic Components. + Investigation Must Choose 2 of the following factors to study Investigate how these factors vary between ecosystems,

Lesson 6: Ocean Layers I Chemical Oceanography. We have been learning about ocean chemistry What are two important cycling nutrients we have learned about?

CHEMICAL ANALYSIS OF LIS WATER. DISSOLVED OXYGEN What do organisms need oxygen for? How do organisms get oxygen out of the water?

PROPERTIES OF SEAWATER

Water. Earth’s Hydrosphere Hydrosphere = all the parts of the earth that are made up of water –Oceans, Lakes, Rivers –Underground water, clouds.

 What determines the safety of a water source and how potable it is?  Potable – safe for humans to drink  Biological, physical, and chemical variables.

Aquatic biomes are categorized by: Salinity Freshwater Saltwater (marine) Depth Water flow.

Hydrology Unit Review. The continuous movement of water from the ocean to the atmosphere to the land and back to the ocean is called what? The Water Cycle.

 Freshwater inflows from rivers and bayous meet saltwater from the Gulf of Mexico  Fresh + Salt = Brackish water.

CONSTRUCTION UPDATE Napa Plant Site Central Unit.

Aquatic Biomes Chapter 10 Section 1. An aquatic habitat is one in which the organisms live in or on water. Aquatic biomes and their ecosystems are scattered.

NEXT Water Hydro- sphere Water- sheds Water Health Human Effects Team One Team Two Team Three Team Four.

Citizen Science at Kahalu‘u Bay These slides were made possible by generous support from the Hawaii State Department of Health, NELHA, The Kohala Center.

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.

Please get out your map from yesterday a piece of paper, and read the board.

Seawater Chapter 15 Section 2.

Salinity of Ocean Water salinity a measure of the amount of dissolved salts in a given amount of liquid Ocean vs. Freshwater = amount of salt.

Lab 5 Physical and Chemical Properties of Sea Water

AQUATICS UNIT REVIEW *Check your study guide as we go through the slides.

 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.

Seawater Chemistry JQ: If you add a pinch of salt to water, will it boil faster?

There are several different physical parameters, or measurable factors, that affect water quality. The first is temperature. In general, the cooler the.

OCEANS INTRO AND ESTUARY REVIEW Module 7. THE OCEAN IS A DYNAMIC SYSTEM- ALWAYS CHANGING!  The ocean is an important source of food and mineral resources.

Notes – Water Biomes A. Limiting Factors 1.Salinity (salt)

Monitoring Water Quality for ecosystem health. Why Monitor? Under the Clean Water Act, EPA asks VA to enforce laws improving the quality of our streams,

Properties of the Ocean

© 2014 Pearson Education, Inc. Chapter 5 Water and Seawater Salinity.

Aquatic Ecosystems. Occupy largest part of biosphere Two major categories: Freshwater Marine.

Ocean Water Chemistry Chap 13 – Section 3. Why is ocean water salty? Undersea volcanoes erupted, ejecting chemicals into the water Rains eroded land washing.

Watersheds & Groundwater Vocabulary.

© 2014 Pearson Education, Inc. Chapter 5 Density, Salinity, Temperature relationships in ocean water Water has many unique thermal and dissolving properties.

Water Quality Testing.

Water Quality Rice Creek Watershed.

4.5 AQUATIC Ecosystems Benchmark:

Lower Basin of the St. Johns River Jacksonville, FL

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

Chemical Oceanography

“where the rivers meet the sea”

Part 2: Abiotic Factors affecting Aquatic Ecosystems Pg

Salinity of Oceans.

Freshwater ecosystems

Chapter 4.5 – Aquatic Ecosystems

Ocean Composition.

How do you know water is healthy?

Ocean water contains salts and gases.

We have been learning about upwelling and nutrients

Warmup 10/22/12 As the population of Durham increases…

How do you know water is healthy?

Ocean Composition.

4th Grade Vocabulary Part Five

Welcome To Big Board Facts.

How does its chemistry affect the ocean’s characteristics?

Chemistry of seawater Salt pH Gases Nutrients.

VI. Aquatic Biomes.

Little River Ditches Watershed Monitoring

Pearce Creek DMCF Baseline Exterior Monitoring Spring 2017 Results

Lesson 6: Ocean Layers I Chemical Oceanography

Aquatic Ecosystems.

Water Biomes SWBAT identify marine and freshwater ecosystems along the ocean’s coast.

Ocean Currents.

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

Salinity Measure of salt dissolved in a sample of water Measured in parts per thousand (ppt) Can be measured by determining how much water conducts electricity Influenced by tides and rainstorms Higher salt concentrations can decrease dissolved oxygen Organisms may not be tolerant to high salt concentrations

Events Affecting Salinity

What site do you think has highest salinity? Ocean = 35 ppt (seawater) Downtown = 10-18 ppt (brackish) Near Buckman Bridge = 0-5 ppt (freshwater)

What site do you think has highest salinity? Ocean = 35 ppt (seawater) Downtown = 10-18 ppt (brackish) Near Buckman Bridge = 0-5 ppt (freshwater)

What site do you think has highest salinity? Sample 1 = 35 ppt (seawater) Sample 2 = 10-18 ppt (brackish) Sample 3 = 0-5 ppt (freshwater)

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.