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Marine Productivity
n/a
30
Geology
Undergraduate 1
07/29/2011

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Cards

Term
Biological Oceanography
Definition
ecology of marine organisms
Term
Marine Biology
Definition
biology of marine organisms; physiology, feeding, behavior, habitat
Term
Marine Life Energy Source
Definition
Solar
Term
Primary Producers
Definition
Photosynthesizers or Chemosynthesizers
Term
Photoplankton
Definition
Creates 90 % of carbs
Term
Trophic Pyramid
Definition
efficency between each level is significantly loss by 10%
Term
Level 1
Definition
Autotrophs
Term
Level 2+
Definition
Heterotrophs
Term
Light
Definition
  • much is reflected from ocean surface
  • other absorbed by water
  • euphotic zone: top zone is 10% of earth's ocean
Term
Factors that affect Marine Life
Definition
Light, temperature, dissolved nutrients, dissolved gases, salinity
Term
Temperature
Definition
  • most marine life are ethothermic (cold blooded)
  • metabolic rate depends on temperature
  • if too cold will slow down

 

Term
Dissolved Nutrients
Definition

compound required for the production of organic matter

Primary Producers: nitrogen, phosphorus

Depleted by autotrophs during times of high productivity

Term
Salinity
Definition

fairly constant, except for water surface

Affects: buoyancy, cell membranes can be damaged, water balance

Term
Limiting Factors
Definition
Typically one or more factors limit the productivity
Term
Light Classification
Definition

Euphotic - lots of light Ocean Surface

Disphotic - Little Sunlight, mid ocean

Aphotic - No sun, bottom ocean

Term
Classification by Location
Definition

Surface:Paelegic (Neritic, Oceanic

Depth:Epipelagic-lighted Photic

Mesopaelgic, Bathy paelegic, abyssopaelegic

Term
Plankton
Definition
floaters and drifters
Term
Nekton
Definition
Free Swimmers
Term
Benthos
Definition
bottom dwellers, attached to bottom or free moving
Term
Photoplankton
Definition
photosynthesizing; coccolithospores and dinoflagellates
Term
Zooplankton
Definition
animals eating others, squids, eels
Term
Chordates
Definition
phylum; fish, shark, reptile, mammals
Term
Anthropods
Definition
phylum; crab, copepod, zooplankton
Term
Echnioderms
Definition
phylums; sea urchins and star fish
Term
Cnidaria
Definition
phylum; jellyfish and coral
Term
Community
Definition
comprised of many populations and organisms
Term
Populations
Definition
groups of organisms of the same species occupying a specific area
Term
Habitat
Definition
physical environment
Term
Niche
Definition
expression of how organisms live; its job
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