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mariculture test 1
microalgae, macroalgae, rotifers, artemia
39
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Undergraduate 3
02/22/2012
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Term
Class Bacillariophyceae
 Definition
Thalassiosira
Chaetoceros
Term
C. Prymnesiophyceae
 Definition
Isochrysis
Term
Cholorophyta
 Definition
Tetraselmis
Dunaliella
Chlorella
Nannochloris
Term
Chrysophyceae
 Definition
Monochrysis
Term
Cryptophyceae
 Definition
Crpytomonas
Term
Dinophyceae
 Definition
Gymnodinium
Term
Rhodophyceae
 Definition
Porphyra
Term
Rotifera
 Definition
Brachionus plicatilis
Term
Artemia
 Definition
P. Arthropoda
S.P. Crustacea
C. Branchiopoda
O. Anostraca
Term
Cold water
 Definition
< 15 C
Term
Cool water
 Definition
15-20 C
Term
Warm water
 Definition
> 20 C
Term
Q10 - 10 C inc
 Definition
2-3 x Biological RXNs
Term
Epilimnion
 Definition
warmer, less dense, surface water
Term
Hypolimnion
 Definition
denser, cooler, bottom water
Term
Thermocline
 Definition
Zone with rapid inc. temp between hypolimnion and epilimnion
Term
FW
 Definition
Less than .5 ppt
Term
Oligohaline
 Definition
.5 - 3.0 ppt
Term
Mesohaline
 Definition
3.0 - 16.5 ppt
Term
Polyhaline
 Definition
16.5 - 30.0 ppt
Term
Marine
 Definition
> 30ppt
Term
Hypersaline
 Definition
> 40ppt
Term
Gains in DO
 Definition
Photosythesis
Diffusion
Term
Loss of DO
 Definition
Zooplankton respiration
Fish respiration
Benthic organism respiration
Diffusion
Term
All aquatic systems
 Definition
Need more oxygen produced than consumed.
Photosynthesis major producer of Oxygen.
Light usually limiting to photosynthesis - not nutrients.
Term
Compensation point
 Definition
Depth at which Oxygen produced by photo + Oxygen entering by diffusion = that consumed by biota
Term
Ways to replenish DO
 Definition
Water pumps
Aeration equipment ( paddle wheels, sprayers)
Term
Minimum culture level for DO
 Definition
5mg/l (5ppm)
Term
Seawater pH
 Definition
8
Term
Inc CO2 = Dec pH
 Definition
pH inc during day, dec during night
Term
T/F NH3 dec with inc pH
 Definition
False
Term
Toxic levels of NH3?
 Definition
Short term - 0.6-2.0 mg/l
Long term - 0.1-0.3 mg/l
Term
Nitrosomonas
 Definition
Genus of bacteria that fixes NH3 to Nitrite(NO2-)
Term
Nitrobacter
 Definition
Nitrite(NO2-) to Nitrate(NO3-)
Term
Brown gill disease
 Definition
Nitrite(NO2-) interferring with o2 transport, in finfish oxidizes hemoglobin to methemoglobin
Term
T/F NO2- toxicity dec w/ inc salinity as cations bind preventing uptake from solution
 Definition
True
Term
Toxic levels NO2- (Nitrite)
 Definition
Crustaceans - 9-15mg/l
Fish 25-34mg/l
Molluscs 500-750 mg/l
Term
Hydrogen Sulfide (h2s) toxic at
 Definition
0.01 mg/l, safe levels <0.002mg/l
Term
Dec pH = Dec S2 = Dec HS- = Inc H2S
 Definition
true
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