Shared Flashcard Set

Details

LAT
chp 6
28
Other
Undergraduate 3
02/03/2013

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Cards

Term
term for static tank system
Definition
closed system
Term
what occurs when a fish has gas bubble disease
Definition
gases go into the body and create bubbles in the blood and tissue
Term
system that runs a constant stream of water into and out of each tank without water recirculation
Definition
flow-through system
Term
amphibians and fish have permeable skin which can allow what to happen
Definition
absorb tozins
Term
t/f toxic to amphibians: phenolics
Definition
true
Term
t/f toxic to amphibians: chloramines
Definition
true
Term
t/f toxic to amphibians: latex gloves
Definition
true
Term
t/f toxic to amphibians: activated carbon
Definition
false
Term
what process is a standard way to dechlorinate water
Definition
add sodium thiosulfate
Term
how long does it take to establish a healthy biologic filter with the appropriate bacteria
Definition
weeks or months
Term
what substance is an example of a chemical filter
Definition
activated carbon
Term
what is the germicidal spectrum of ultraviolet light for killing microrganisms
Definition
200-280 nanometers
Term
how far above the floor should electrical outlets be lovated
Definition
1 m
Term
which parameter is a measure of both calcium and magnesium ions in water
Definition
total hardness
Term
what substance can be added to an aquatic system to raise the pH
Definition
sodium biocarbonate
Term
what will happen to an aquatic species if the water in the system has too many ions
Definition
water will flow into the animal
Term
what is biofilm
Definition
microorganism build-up on the tank wall
Term
what is a biologic filter
Definition
an inert substance that is a substrate which binds nitrifying bacteria
Term
what does pH measure in the aquatic system
Definition
hydrogen ions
Term
what type of water essential for aquatic species
Definition
water without chlorine
Term
what parameter is a measure of the amount of dissolved salts and minerals, presented as ions, within an aqueous solution
Definition
conductivity
Term
how much dissolved oxygen is normally contained in water (by volume)
Definition
less than 1%
Term
during the time when biologic filter is being established, what levels can increase and remain high
Definition
nitrite and ammonia
Term
what is the term for the transient stressful microenvironment for aquatic species that occurs while the biologic filter is being established
Definition
new tank syndrome
Term
what light level do most fish require
Definition
100-150 lux
Term
what is the process of breaking down the waste product ammonia to its less toxic byproducts, nitrites, and nitrates called
Definition
nitrogen cycle
Term
what is the type of filter that removes large, solid waste
Definition
mechanical
Term
why does the germicidal spectrum of ultraviolet light have to be in a certain watvelength range
Definition
to limit microorganism replication
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