Studied by 0 peopleBathymetry
underwater topography
continental margin (definition and 3 parts)
The top of continental crust
continental shelf, shelf break, and slope.
Deep ocean basin (def. and 6 parts)
top of oceanic crust
abyssal plains (flat expanses), abyssal hills, seamounts (pointy) and guyots (flat), deep-sea trenches (long narrow depression), submarine volcanoes, mid-ocean ridges
Beaches
sand moves shoreward in summer and seaward in winter. Have dunes. Occur on berms. Beach face between berm and tide lines.
Barrier islands
large, stable deposits of sand that are separated form mainland bodies of water. CONTROLLED BY WAVE ACTION, SEA LEVEL RISE, AND SEDIMENT DEPOSITION. (wave energy).
Benthic (5 zones)
Bottom!
littoral, sublittoral, bathyal, abyssal, hadal
pelagic (2 zones)
water! (in water column determined by light availability)
neritic zone, oceanic zone.
light zones (3)
based on light penetration
photic, dysphotic, aphotic
ecology
relationships between phys. and bio. parts of environment.
Affected by sunlight, temp, salinity, and pressure
Plankton
drifters. phytoplankton and zooplankton.
nekton
free swimmers. fish.
benthos
bottom dwellers. soft bottom w/ infauna or hard bottom w/ epifauna.
ocean productivity
production of organ matter by phytoplankton. affected by light, nutrients, turbulence, and upwelling
compensation depth
photosynthesis = respiration
net productivity
amount of organic material available to heterotrphs
Note
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