exam Flashcards
Wave period
The time it takes a wave to pass the fixed point
Celerity
Wave speed for progressive wave
Progressive waves
move through the water column
Standing Waves
waves that don’t move and the crest and trough switch
D/L ratio
determine type of wave: shallow, intermediate, or deep water wave
shallow waves
d/L<0.05
intermediate waves
0.05<d/L <0.5
deep waves
0.5<d/L
longshore transport
transport of sand parallel to the coast
types of breakers
spilling, plunging, and surging
photosynthesis
CO2+H20+nutrients+light—->C6 H12 O6+O2
produces glucose and oxygen as a biproduct (phytoplanton go through this)
respiration
C6 H12 O6 +O2 —> H2O +CO2 + nutrients+ energy
(zooplankton go through this)
limitations of primary production
grazing, lack of light, and lack of nutrients
what are examples of nutrients
nitrate, phosphate, silica, ammonium
external sources of nutrients
can come from rivers, runoff, fertilizer, and dying animals
zooplankton produce nutrients
major processes that control nutrient profiles
photosynthesis and respiration
why are nutrients depleted at the surface
there is lots of photosynthesis at the surface because of the sun getting into the water column
diatom
round looks like a lemon
copepod
looks like a fish with no eyes
what is a plankton
it cant move itself so its movement is controlled by the tide
phytoplankton
go through photosynthesis, primary producers
main groups of zooplankton
holoplankton- plankton all the time
meroplankton-plankton for only part of their life
zooplankton
get energy through eating phytoplankton and respiration
main groups of phytoplankton
diatoms
dinoflagellates
plankton blooms
caused by excessive nutrients
invertabrates
no spine
benthic
means bottom so benthic organisms are on or in the bottom
sessile
stuck in one place ex. barnacles
mobile
able to move around ex. snails
epifauna
on top of the sediment
ex. starfish ,snails, sea stars
infauna
in the sediment
ex. clams,worms
infauna are divided into 3 sizes
macrofauna: >1mm
meiofauna: between 1mm and .01 mm
microfauna: <0.1 mm
2 ways to collect sample
benthic grab or trawl net
organisms that were most abundant
mollusks or annelida
4 major phyla
mollusca-soft organisms with a hard shell
annelida-worms
antropoda-jointed feet ex crab
echinodermata-prickly skin ex starfish
CTD what does it measure
conductivity, temperature, and depth
scientific method steps
ask a question
do bg research
conduct hypothesis
test with an experiment
analyze results
report results
