Stream & Ocean Ecology

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22 Φεβ 2014 (πριν από 3 χρόνια και 6 μήνες)

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Stream & Ocean Ecology

Facilitated by Charles Orgbon

corgbon@greeningforward.org

(855) ECO
-
TEEN ext. 300

My Experiences in Stream Water
Monitoring


Georgia Adopt
-
A
-
Stream participation since
fall 2010 with the Gwinnett Sierra Club


Certified chemical stream water monitor


Developed curriculum resources since 2011


80 percent of pollution to the marine
environment comes from land
-
based
sources, such as runoff pollution.
Runoff pollution includes many small
sources, like septic tanks, cars, trucks
and boats, plus larger sources, such as
farms, ranches and forest areas.


Stream Water Monitoring






W
atch this video

Stream Water Monitoring


Things You Can Test


Visual



Biological



Chemical


Chemical Trivia

1.
What is the gas law that we use to help
understand dissolved oxygen?

2.
An increase in PO is usually accompanied by
a decrease in what?

3.
A
n increase in conductivity is usually the
result of what?

Chemical Trivia

What is the gas law that we use to help
understand dissolved oxygen?

A: Charles’s Law

Chemical Trivia

An increase in PO is usually accompanied by a
decrease in what?

Answer: Dissolved oxygen


Chemical Trivia

An increase in conductivity is usually the result
of what?


Definition of conductivity: also the specific
conductance, is a measurement of the
electrical conductance per unit distance in an
electrolytic or aqueous solution

Coral
Bleeching

Coral reef bleaching, the whitening of diverse invertebrate
taxa, results from the loss of symbiotic
zooxantheallae

and/or
a reduction in photosynthetic pigment concentrations in
zooxanthellae

residing within
scleractinian

corals. Coral reef
bleaching is caused by various anthropogenic and natural
variations in the reef environment including sea temperature,
solar irradiance, sedimentation,
xenobiotics
,
subaerial

exposure, inorganic nutrients, freshwater dilution, and
epizootics. Coral bleaching events have been increasing in
both frequency and extent worldwide in the past 20 years.
Global climate change may play a role in the increase in coral
bleaching events, and could cause the destruction of major
reef tracts and the extinction of many coral species.

Sharks

You are 1,000 times more likely to
drown in the sea than you are to be
bitten by a shark.