BIO 360 Study Guide - Quiz Guide: Chambered Nautilus, Swim Bladder, Protist
29 May 2017
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1 what is the open ocean: inhabitants of open ocean, oceanic animals, zooplankton, nekton. Water above continental shelf vs. earth"s crust (not part of continents) can be viewed as two separate provinces: Oceanic - rest of ocean (or pelagic) Pelagic -- further divided into epipelagic, mesopelagic, bathypelagic etc. based on depth. There are pelagic zones and pelagic organisms in neritic waters. However, oceanic waters are quite different from neritic waters. Overwhelming characteristic of oceanic waters is patchiness. Many fronts -- where two bodies of water with different properties meet -- highly productive. Variety of oceanic organisms specially adapted for life in a patchy environment: inhabitants of open ocean. Two major inhabitants of the open ocean: Phytoplankton dinoflagellates) bacteria, protist primary producers (diatoms, Nekton can swim against current, where plankton cannot: oceanic animals. Permanently plankton -- small, often single celled. Copepods, euphausiids, amphipods, protists, ctenophores, invertebrate chordates. Temporary plankton -- larval forms of many fishes and invertebrates.
