Term
| minor nutrient (iron) experiments |
|
Definition
enrich a small area of ocean by adding iron along with an inert tracer
follow what happens through time by shipboard measurements and satellite observations
experiments conducted in: equatorial pacific, north pacific, southern ocean |
|
|
Term
|
Definition
phytoplankton grew rapidly in response to iron enrichment in all environments
diatoms grew most rapidly
Iron ex 1, Iron ex 2, Eisen, Soiree, Seeds, Sofex |
|
|
Term
| measurement of photosynthesis (general) |
|
Definition
proxy
radioactivity
chlorophyll |
|
|
Term
|
Definition
monitoring oxygen in a dark/light bottle
light bottle: photosynthesis-respiration (net primary production)
dark bottle: respiration only (gross primary production)
gross photosynthesis: light bottle + dark bottle) |
|
|
Term
|
Definition
| photosynthesis - respiration |
|
|
Term
|
Definition
|
|
Term
|
Definition
add C14 to water sample (dissolved CO2)
after time duration, filter particles (organic matter produced)
measure C14 incorporated into particles |
|
|
Term
|
Definition
pigments that absorb sun light
can be monitored by fluorescence (in-situ instrument) and ocean color (satellites)
sea surface chl a = 47 % of global primary production
but they only account for 0.2 % of earth's biomass |
|
|
Term
|
Definition
gas exchange allows CO2 to enter the ocean
flux depends upon sea-air difference
solubility increases in cold water (polar regions are sinks, equatorial sources) |
|
|
Term
|
Definition
plankton: wandering or drifting
incapable of sustained, direct horizontal movement
functional group: viruses, bacteria, phytoplankton, zooplankton
doesn't necessarily have to be tiny |
|
|
Term
|
Definition
class bacillariophyceae (diatoms)
eukaryotes div. chromophyta
important in coastal areas and spring blooms
important in food web
stick together and sink better than any other phytoplankton |
|
|
Term
|
Definition
usually marine form of phytoplankton
radial symmetry
microphytobenthos: live on surface of sediment |
|
|
Term
|
Definition
| usually shallow water and freshwater form of phytoplankton |
|
|
Term
|
Definition
| cannot swim but can regulate buoyancy (some can migrate) |
|
|
Term
|
Definition
|
|
Term
|
Definition
single celled
2 flagelae
bioluminescent
harmful algal blooms
6-8 million/L |
|
|
Term
|
Definition
|
|
Term
| when harmful algal blooms |
|
Definition
shading
oxygen depletion (excessive respiration or decomposition)
mechanical irritation (damaging fish gills) |
|
|
Term
| Harmful algal species and syndromes |
|
Definition
typically dinoflagellates
make toxin
close to coast (b/e of nitrogen coming from land) |
|
|
Term
| neurotoxic shellfish poisining |
|
Definition
karenia brevis
causes brain damage
toxin produced: bervetoxins |
|
|
Term
| amnesic shellfish poisining |
|
Definition
pseudonitzchia sp cynaobacteria
causes amnesia |
|
|
Term
|
Definition
smallest class
photosynthesize
bacteria |
|
|
Term
|
Definition
animals that eat plankton
cannot swim against currents
every major phylum of the animal kingdom is rep.
size ranges from micometers to tens of meters |
|
|
Term
|
Definition
heterotroph
types: holoplankton, mesoplankton, iscthyplankton |
|
|
Term
|
Definition
entire life cycle
copepods/gelatinous zooplankton |
|
|
Term
|
Definition
crustaceans, grazers
secondary production (cows) |
|
|
Term
|
Definition
part of life cycle
shrimp
crabs |
|
|
Term
|
Definition
|
|
