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community
group of organisms of the same species occupying a specific
area
TERM 2
ecology
DEFINITION 2
the study of inter-relationships between the physical,
chemical and biological aspects of the environment and how
organisms adapt to their environment and alter it
TERM 3
distribution
DEFINITION 3
where organisms occur and why do they occur there
TERM 4
abundance
DEFINITION 4
how many
TERM 5
interactions
DEFINITION 5
how and why organisms interact with other organisms and its
environment
abiotic factors
oxygen, temperature, salinity, light, nutrients, currents,
pressure, substrate
TERM 7
biotic factors
DEFINITION 7
feeding relationships, competition, etc.
TERM 8
energy
DEFINITION 8
what every living organism requires
TERM 9
sun
DEFINITION 9
ultimate source of energy
TERM 10
water, carbon dioxide, inorganic nutrients,
sunlight
DEFINITION 10
factors that limit primary productivity
total biomass
decreases with increasing trophic level
TERM 17
stress
DEFINITION 17
use of energy to compensate for conditions outside the
physiological optimal range
TERM 18
habitat
DEFINITION 18
where an organism lives, or the place where one would
expect to find it
TERM 19
niche
DEFINITION 19
an organism's functional role in the physical space it
occupies
TERM 20
no, PATTERNS!
DEFINITION 20
IS IT A CRAZY MIXED UP WORLD?
Pelagic organisms
live in the water column itself
TERM 22
benthos organisms
DEFINITION 22
epifauna: live on the bottom infauna: live within the bottom
sediments
TERM 23
neritic zone
DEFINITION 23
includes all marine waters out to the point at which the
continental shelf begins to drop off rapidly, or to a depth of
300 m.
TERM 24
oceanic zone
DEFINITION 24
open ocean water that begins in the area off shore where the
water measures 200 meters deep or deeper
TERM 25
epipelagic zone
DEFINITION 25
Any water in the sea that is not close to the bottom or to the
shore
neuston
plankton that lives only at the surface
TERM 32
pleuston
DEFINITION 32
break surface of water
TERM 33
seston
DEFINITION 33
particles suspended in the sea
TERM 34
tripton
DEFINITION 34
non-living seston
TERM 35
copepods
DEFINITION 35
most abundant of zooplanktors, accounts for 70% of the
individuals or 50% of the biomass of zooplankters
nekton
live in the water column and are able to swim actively
TERM 37
freshwater fish
DEFINITION 37
water gained by osmosis
TERM 38
saltwater fish
DEFINITION 38
water loss by osmosis
TERM 39
gills
DEFINITION 39
allow fish to be very active
TERM 40
benthos organisims
DEFINITION 40
live on, in or near the seabed
overfishing
most serious activity that threatens oceans
TERM 47
nutrient
overenrichment
DEFINITION 47
(eutrophication) major cause of water pollution in the United
States
