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Lecture 2

Terminology

QuestionAnswer
What are organisms incapable of sustained, directed horizontal movement ("wandering" or "drifting")? plankton
What are active swimmers called? nekton
What are inhabitants of the benthic environment (bottom of a body of water) called? benthos
all organisms 0.2-2 micrometers (bacteria, viruses, archaea, +smallest of phytoplankton) picoplankton
2-20 micrometers; mainly phytoplankton nanoplankton
20-200 micrometers; mostly zooplankton, some phytoplankton microplankton
200-2000 micrometers; mostly zooplankton mesoplankton
2-20 centimeters; starts nekton macroplankton
20-200 centimeters; bigger nekton megaplankton
matter of organic origin, but incapable of reproduction (dead) detritus
passes through a fine filter dissolved
dissolved organic matter; organic material that passes through a fine filter DOM
material that does NOT pass through a fine filter, can be detritus OR inorganic material like sediment particulate
"open ocean", "blue water", water depth >200 m oceanic
beyond low tide out to the edge of the continental shelf (i.e., depth <about 200 m); includes "nearshore" and "estuarine" coastal
"in the water" pelagic
"on or associated with the ocean floor" benthic
two important questions in biological oceanography how much is there? how fast is it happening?
Created by: rachelaurenk
Popular Marine Sci Tech 1 sets

 

 



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