Oceanography Study Guide
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Terms
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- ocean basin
- low area on earth in which an ocean formed when the area filled with water from rain
- continental shelf
- gradually sloping end of a continent that extends beneath the ocean and provides a home for most marine organisms
- plankton
- Marine organisms that drift with the current
- nekton
- animals that actively swim rather then drift in the current
- zooplankton
- feed on phytoplankton
- continental slope
- ocean basin feature that dips steeply down from the continental shelf
- food web
- Complex feeding system of overlapping food chains
- biological amplification
- When really big fish eat small fish and become very unhealthy
- trench
- long, narrow, steep-sided depression in the seafloor formed where one crustal plate sinks beneath another
- subduction zone
- where one crustal plate sinks beneath another
- seamount
- an underwater inactive volcano peak
- abyssal plain
- flat seafloor area, formed by the deposition of sediments
- mid-ocean ridge
- area where new ocean floor is formed when lava erupts through cracks in earth's crust
- placer deposits
- energy of ocean waves and currents can cause denser mineral grains that have been brought by rivers to one place
- phytoplankton
- producers
- benthos
- plants and animals living on or in the seafloor