Ocean101-MarineBiol-Part3

Ocean101-MarineBiol-Part3 - 1 Marine Biology Part 3 Pelagic...

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Unformatted text preview: 1 Marine Biology - Part 3 Pelagic Communities ! Plankton (foaters) " Phytoplankton (autotrophs) " Zooplankton (heterotrophs) ! Nekton (swimmers) " Squids and nautiluses ! Reptiles " Shrimps and relatives ! Birds " Fishes ! Mammals Food Sources in the Deep Ocean Most food from surface waters above drifts down through the water column (dead organisms, fecal pellets, molts). Some is transported down the continental slope by currents. Plankton Net Fig. 13.2a, p. 300 2 Diatoms (SiO 2 ) = A Phytoplankton Fatty acids, oils, chlorophyll Frustules Very efFcient photosynthesizers! (~55%) Fig. 12.5b, p. 275 & Fig. 13.5b, p. 303 Fig. 13.5a&c, p. 303 Other Phytoplankton • Dinofagellates (cellulose) • 2 fagella - drive, rotate • Red tides • Bioluminescence • Coccolithophores (CaCO 3 ) • Covered with disks (coccoliths) • Translucent • Bright temperate coastal waters • Chalk See Fig. 13.6, p. 304 & Fig. 13.7, p. 305 3 Copepods (crustaceans) = A Zooplankton See Fig. 13.10, p. 307 Other Zooplankton • Radiolaria (SiO 2 ) • Siliceous oozes • Foraminifera (CaCO 3 ) •...
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This note was uploaded on 01/09/2012 for the course OCEA 101 taught by Professor Gwynethjones during the Winter '12 term at Bellevue College.

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Ocean101-MarineBiol-Part3 - 1 Marine Biology Part 3 Pelagic...

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