Or What do we use to study the marine world?

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Presentation transcript:

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

Physical Properties Secchi Disk measures turbidity/visibility turbidity - cloudiness due to the amount of suspended matter in the water (soil, sediments, sewage, and plankton) Clear - low turbidity Cloudy - high turbidity

Biological Properties Dip Net retrieves a variety of samples from the water

Physical Properties Hydrometer measures density & temperature, used to find salinity HYDROMETER

Physical Properties Niskin / Nansen Bottle obtains water samples at a variety of depths NISKIN BOTTLE

Biological Properties Sediment Screen used to screen sediments for macro invertebrates

Physical Properties Shipek/Peterson Grab take a sample of the ocean bottoms

Physical Properties CTD measures conductivity, temperature & depth

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

Biological Properties Plankton Net net towed or dipped to gather plankton samples

Research Vessels ALVIN Research submersible Can carry passengers Reach depths of 14,764 ft. Maneuverable arms, 3 portholes ALVIN

Physical Properties Thermometer measures & records temperature at a particular depth

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