UNITSTOOLSSTATIONS LAKE MERRITT TRASH and MISCELLANEOUS 100 200 300 400 500.

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Presentation transcript:

UNITSTOOLSSTATIONS LAKE MERRITT TRASH and MISCELLANEOUS

What are the units of temperature? ANSWER

What are the units of dissolved oxygen (D.O.)? ANSWER

What are the units of salinity? ANSWER

What are the units of pH? ANSWER

What are the units of Secchi depth? ANSWER

What measures water clarity? ANSWER

What measures salinity? ANSWER

What measures dissolved oxygen? ANSWER

What measures pH? ANSWER

What measures temperature? ANSWER

Which station is near the tide inlet from San Francisco Bay? ANSWER

Which station is in the middle of the lake? Answer

Which station is near the bird islands? Answer

Which station is near Fairyland and marks the inlet from Glen Echo Creek? Answer

Which station is at the shore near the lake classroom? Answer

Degrees Celsius

Parts per thousand, ppt

No units.

Centimeters

The Secchi disk

The refractometer

Vacuum ampoules (tubes) and colorimetric test.

pH strip

Thermometer

Station 12 

Station 9 

Station 5 

Station 17 

Parts per million (ppm)

The dock 

What is an estuary? Answer

A place where fresh water and salt water mix.

What is a watershed? Answer

The area of land that drains into a body of water.

What is urban run-off? Answer

Trash and chemicals that wash off city streets.

Name 5 sources of water entering Lake Merritt. Answer

1) Glen Echo Creek, 2) Trestle Glen Creek, 3) Storm drains (88!), 4) S.F. Bay, 5) rain.

Storm drains lead to… Answer

Natural waterways like Lake Merritt

What is a dead zone? Answer

An area of water where living things get killed by a lack of dissolved oxygen.

What level of dissolved oxygen is needed for aquatic life in Lake Merritt Answer

5 ppm

List at least 3 things the plankton told Titus and Charles Ford. (100 bonus points for each additional thing!). Answer

You are too big. Why don’t you worship the sun? Why do you throw trash in the Lake? Why do you waste energy?

What is the difference between storm drain water and sewer water? ANSWER Answer

Storm drain water goes directly to Lake Merritt or other waterways. Sewer water goes to the water treatment plant before it is released into the Bay.

What two conditions at Lake Merritt have been cited by the E.P.A. as below acceptable levels?

Low dissolved oxygen and trash in the water.

Name 3 dangerous chemicals found in urban run-off. ANSWER

Copper from brake pads, motor oil, paint, fertilizers, insecticides.

What is the “Big Flush” and when does it occur?

The washing down of huge amounts of trash from the storm drains into the Lake. This occurs after the first big rainfall of the year, usually in November or December.

In 1870, Lake Merritt made environmental conservation history. What happened in that year?

Lake Merritt was declared the first National Wildlife Refuge.