1. Or What do we use to study the marine world?
Tools of the Trade
Or What do we use to study the marine world?

2. Tools of the Trade matching worksheet
Expand your knowledge of the tools used by marine scientists by completing the worksheet as we go over the tools in class.

3. Physical Properties
Thermometer – measures & records temperature at a particular depth
Hydrometer – measures density & temperature, used to find salinity

4. Physical Properties
Link
THERMOMETER
HYDROMETER

5. Physical Properties
Niskin / Nansen Bottle – obtains water samples at a variety of depths
Secchi Disk – measures turbidity/visibility
turbidity - a measure of water cloudiness due to the amount of suspended matter in the water (soil, sediments, sewage, and plankton)
Clear water has a low turbidity level
Cloudy (or muddy) water has a high turbidity level.

6. Physical Properties
Link
NISKIN/Nansen BOTTLE
Link
SECCHI DISK

7. Physical Properties
Shipek/Peterson Grab - take a sample of the ocean bottoms
Link

8. Physical Properties CTD – measures conductivity, temperature & depth
Link
CTD – measures conductivity, temperature & depth

9. Biological Properties
Plankton Net – net towed or dipped to gather plankton samples
Dip Net – retrieves a variety of samples from the water
Link

10. Biological Properties
Sediment Screen – used to screen sediments for macro invertebrates

11. GPS
Provide radio-navigation system giving every place on Earth an address

12. Research Vessels
Alvin – research submersible used to locate bombs, Titanic, hydrothermal vents

13. Research Vessels
Trieste – first bathyscaphe to descend 35,600 ft to the bottom of the Marianas Trench

14. Research Vessels
Alcyone – Jacques Cousteau’s turbo sail ship

15. Research Vessels
FLIP – 355’ floating instrument platform that can become vertical
Link

16. Other Research Tools SONAR (Sound Navigation and Ranging)
a technique that uses sound waves (usually underwater, as in submarine navigation) to navigate, communicate with, or detect objects on or under the surface of the water
Link

17. Other Research Tools
SCUBA (Self Contained Underwater Breathing Apparatus)
Developed during WWII by Jacques-Yves Cousteau and Emile Gagnan
Link