decreasing water temperature to less than desirable levels:

decrease feeding rates and the rate of development

the symbols "ppm" or parts per million is the

milligrams of solute per liter of solvent

water has a neutral because

it has an equal amount H+ and OH- in solution

how does bacteria affect dissolved oxygen (DO) in water bodies?

decrease DO through decompositon

Maximum sustainable yield is

The number of particular fish that can be harvested from the oceans each

when you determine the size of the tank/aquarium, why do you have to divide by 231 after calculating lxwxh?

convert inches cubed to gallons

flow through raceway aquaculture:

requires more water volume per fish than other forms of aquaculture

the chemical conversion of nitrate to nit. gas under anaerobic conditions

The correct order for Plankton from smallest to largest is

pico-plankton, nano-plankton, micro-plankton, meso-plankton, macro-plankton

increasing water temperature to lessens stress inducing levels

increases fish metabolism and increases growth rate

The overall amount of energy flowing through an ecosystem that is available to the next trophic level

Decrease by about 90% at each successive trophic level.

which of the following is the correct equation for PHOTOSYNTHESIS?

light+carbon dioxide+water--> glucose+oxygen

which species is not matched with its most common production method

oysters: semi-intrusive pond aquaculture

homer swingle's greatest contribution to aquaculture was

He detaermined that catfish and fw shrimp could be grown economically for p

Organisms and how they interact with their enviorment.

which of the following adds DO to a body of water?

decreasing temperature and increasing aeration

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Answers

1
decreasing water temperature to less than desirable levels:
decreases the rate of development
decreases the feeding rate
decrease feeding rates and the rate of development
increase metabolism
2
the symbols "ppm" or parts per million is the
milligrams of solute per liter of solvent
milligrams of solvent per liter of solute
grams of solute per liter of solvent
milligrams of solvent per liter of solute
3
All of these processes are part of the nitrogen cycle except
nitrification
ammonification
nitrogen fixation
assimilation
4
Why are certain types of aquaculture considered to be high-risk?
waste accumulates in the water
the pens are too sealed off from the open ocean and other fish
Pens are difficult for fish to get out of to visit the wild
5
organisms kept in enclosures to monitor and control environmental factors is....
extensive management
intensive aquaculture
intensive management
extensive aquaculture
6
water has a neutral because
it has an equal amount H+ and OH- in solution
it has more OH- than H+
it has more H+ ions than OH-
it does not produce any ions
7
how does bacteria affect dissolved oxygen (DO) in water bodies?
increase DO through decomposition
bacteria multiply DO by 8
decrease DO through decompositon
DO stays the same
8
Maximum sustainable yield is
The number of particular fish that can be harvested from the oceans each
The number of fish that can be harvested from the oceans each year.
The number of a particular fish that can be harvested from the oceans each
The number of fish that can be harvested from the oceans.
9
when you determine the size of the tank/aquarium, why do you have to divide by 231 after calculating lxwxh?
convert inches to gallons
convert inches over to liters
convert inches cubed to gallons
none of the answers are correct
10
The dissolved oxygen is at its lowest level in a lake or a pond
at midnight
at noon
at sunset
at sunrise
11
flow through raceway aquaculture:
requires more land than pond aquaculture
requires more water volume per fish than other forms of aquaculture
releases high quality water back into rivers and streams
is low animal density aquaculture
12
what can REMOVE dissolved oxygen from the water
decomposition
warming waters
all answers are correct
cellular respiration
13
all of the following states are matched with their primary aquaculture species except
florida and tropical fish
mississippi and catfish
louisiana and oysters
arkansas and baitfish
14
denitrification is
the chemical conversion of ammonia to nitrate under aerobic conditions
the chemical conversion of ammonia to nitrate under aerobic conditions
the chemical conversion of nitrate to nit. gas under anaerobic conditions
the chemical conversion of nitrate to nitrogen gas under aerobic conditions
15
The correct order for Plankton from smallest to largest is
pico-plankton, micro-plankton, nano-plankton, meso-plankton, macro-plankton
nano-plankton, micro-plankton, meso-plankton, macro Plankton, pico-plankton
Macro-pankton, meso-plankton, micro-plankton, nano-plankton, pico-plankton
pico-plankton, nano-plankton, micro-plankton, meso-plankton, macro-plankton
16
aquaculture began in the country of?
China
Thailand
Japan
Egypt
17
rearing organisms in a natural situation is
extensive management
intensive management
intensive aquaculture
extensive aquaculture
18
increasing water temperature to lessens stress inducing levels
decreases feeding rate
increases fish metabolism and increases growth rate
increases fish metabolism
increase growth rate
19
all of the following are beneficial characteristics for an aquaculture species except
tolerant of high densities
fast growing
tolerant of poor water quality
prolific breeding at a young age
20
what is one way to lower the amount of nitrates in your tank?
add more fish
lower the water temperature
remove fish
do a partial water change
21
the dogfish is an example of a
cartilaginous fish
jawless fish
osteichthyes fish
agnatha fish
22
colder water _______
holds the same dissolved oxygen as warm water
temperature does not affect dissolved oxygen
holds MORE dissolved oxygen
holds LESS dissolved oxygen
23
the fish produce waste called _______ which is converted by bacteria into ____ which is then converted into ________.
ammonia, nitrites, nitrates
ammonia, nitrates, nitrites,
nitrates, nitrites, ammonia
nitrites, ammonia, nitrates
24
the ____ of a fish removes oxygen from the water and forces it through its gills
nervous system
digestive system
excretory system
respiratory system
25
The overall amount of energy flowing through an ecosystem that is available to the next trophic level
Increased by about 90% at each successive trophic level.
Decrease by about 10% at each successive trophic level.
Increased by about 10% at each successive trophic level.
Decrease by about 90% at each successive trophic level.
26
fish that have fins on lobe-like stalks that extend outward from the body; most have two lungs and can breathe air
teleosts
gars
chondosteans
lungfish
27
what can add dissolved oxygen to the water?
photosynthesis
wave and wind action
diffusion from the air above
all answer choices are correct
28
which of the following is the correct equation for PHOTOSYNTHESIS?
carbon dioxide+sugar+water--> oxygen + light
carbon dioxide+oxygen+water-->light+sugar
light+carbon dioxide+water--> glucose+oxygen
oxygen+light+water---> carbon dioxide+sugar
29
when fish excrete their waste, which toxic byproduct is produced?
nitrites
nitrates
ammonia
nitrogen
30
the activated carbon, found inside the blue filter cartridge, performs what kind of filtration?
biological
mechanical
all answers are correct
chemical
31
the ____ consists of a heart, veins, and arteries
digestive system
nervous system
respiratory system
circulatory system
32
on average, how much feed is required to produce a pound of gain in fish?
2.5 pounds
1.5 pounds
1 pound
2 pounds
33
the swim bladder of a fish is a sac filled with:
water
gas
seminal fluid
oil
34
which species is not matched with its most common production method
catfish: semi-intensive pond aquaculture
shrimp: semi-intrusive pond aquaculture
oysters: semi-intrusive pond aquaculture
trout: raceway flow-through aquaculture
35
homer swingle's greatest contribution to aquaculture was
he determined that catfish could be grown economically for profit in the US
he determined that asia had the best environment for successful aquaculture
He detaermined that catfish and fw shrimp could be grown economically for p
he determined that fw shrimp could be grown economically in the US
36
what involves the farming of aquatic species under controlled conditions?
conservation
biotechnology
aquaculture
fisheries management
37
which class of fish has a bony skeleton?
osteichthyes
cartilaginous
agnatha
chondricthyes
38
The limiting nutrients in Freshwater systems is
Phosphorus
Nitrogen
Calcium
Potassium
39
____ requires no extra feeding or aeration.
investment aquaculture
extensive aquaculture
intensive aquaculture
intervention aquaculture
40
________ uses high stocking rates.
intensive aquaculture
extensive aquaculture
artificial aquaculture
expensive aquaculture
41
what is the golden rule for tank maintenance?
change out ALL of the wter once a week
do NOT overfeed
use a light
remove all bacteria
42
a(n) ________ system is one in which the water is pumped in at one place and removed at another.
integrated
open
closed
mixed
43
bony fishes that include perch, trout, at fish, salmon, seahorsses
class chondrichthyes
superclass gnathostomata
superclass agnatha
class osteichthyes
44
NH3 is the chemical formula for which nitrogen compound?
nitrite
nitrate
nitrogen
ammonia
45
ammonium is produced by
uneaten food
urine of fish
fish poop
all of the above
46
What is Ecology?
Organisms of the same species and how they interact with each other.
Organisms and how they interact with each other.
The physical and chemical characteristics of lakes, ponds, and rivers.
Organisms and how they interact with their enviorment.
47
the ____ consists of intestines and kidneys and it filters waste from the blood.
circulatory system
excretory system
digestive system
respiratory system
48
which of the following adds DO to a body of water?
decreasing temperature and decreasing aeration
decreasing temperature and increasing aeration
increasing temperature and decreasing aeration
increasing temperature and increasing aeration
49
chemical and physical process of delivering oxygen to cells or tissues.
respiration
mitochondria
osmosis
breathing
50
all of the following species are aqua cultured either commercially or for stock enhancement in the US except:
oysters
red drum
tuna
shrimp
51
what is the name of the flap that covers the gills?
cartiagnious
chondrichthyes
operculum
agnatha
52
buffering is
the amount of ammonia and nitrite in the water
the amount of calcium and magnesium in the water
the amount of carbon in the water
the ability of water to resist pH change
53
The process of photosynthesis and respiration
Are responsible for daily fluctuations in the PH of a lake.
Are responsible for daily fluctuations in the DO of a lake.
Are performed by all plants and animals
All of the above are correct.
54
considered modern bony fish, these fish are fish most familiar to us; include catfish, trout, swordfish, salmon
lungfish
agnatha
chondosteans
teleost
55
the most economically viable form of large-scale aquaculture in the world is:_____?
recirculating aquaculture
flow through raceway aquaculture
offshore cage aquaculture
pond aquaculture
56
the term nekton refers to organisms that
live near the shore in and out of the water
live in the water column and move around freely
live on the bottom and don't move well
live on the bottom and move around freely
57
______ conveys sensation impulses to a fish's brain.
nervous system
respiratory system
sensory system
circulatory system
58
Commercial fishing as it is currently practiced is
As a whole less sustainable than aquaculture.
Less sustainable than aquaculture and environmentally damaging.
Is for the most part environmentally damaging.
Is for the most part environmentally friendly.
59
a good example of extensive aquaculture
oyster ranching in the gulf of mexico
live rock farming in the florida keys
indoor shrimp farming in a bio-floc production system
oyster ranching and live rock farming are correct
60
a good example of intensive aquaculture
catfish farming in the southeast united states
indoor shrimp farming in a bio-floc production system
oyster ranching in the gulf of mexico
crawfish farming louisiana
61
cartilaginous fishes that long, eel-like bodies, no scales, no appendages, and no jaws
class chondrichthyes
class osteichthyes
superclass gnathostomata
superclass agnatha
62
alll of the following are potentially successful strategies for recreational ponds except
largemouth bass, bream, and catfish option
trophy bass option
catfish only option
hybrid striped bass only option
63
pond aquaculture is:
less expensive and less risky than recirculating aquaculture systems
less expensive/risky and uses more water than recirculating systems
uses the most water of the primary aquaculture production systems
more expensive and riskier than recirculating aquaculture systems
64
Which of the following is an indication that a recreational pond is bass crowded?
Large number of bluegill 3-5"
Large numbers of similar-sized LMB (less than 12 inches)
Lots of very small bluegill less than 2"
Bass population contains only a few large individuals.
65
toxic nitrites changed into something safer by
nitrosomas bacteria
nitrobactor bacteria
bactosoma bacteria
rhizobium bacteria
66
Characteristics of a good recreational pond include all of the following except
sides with a slope of 1:2 or 1:3
Solid with 80% clay content
a long flat shallow area of 36 inches depth for fish spawning
excellent compaction of pond bottom and levees
67
What is Turbidity?
The levels of calcium and magnesium dissolved in water.
A measure of water clarity and light penetration.
The levels of carbonate buffer dissolved in the water.
The log of hydrogen ion concentration.
68
all of the following are warm-water species except
red swamp crawfish
channel catfish
striped bass
tilapia
69
the ____ consists of testes, ovaries, produces sperm and egg for the next generation.
digestive system
reproductive system
nervous
sensory system
70
no3 is the chemical formula for which compound in the nitrogen cycle?
nitrite
ammonia
nitrogen
nitrate
71
which statement is not a current issue of aquaculture sustainability?
shrimp farms are built on mangroves
all of the above are current issues of aquaculture sustainability
pollution created by the offshore cage aquaculture of salmon
carnivorous species consume more biomass than is generated by their aquacul
72
after the ammonia is in the tank, which bacteria start to change it to something less toxic?
nitrogen bacteria
ammonia bacteria
nitrosomas bacteria
nitrobacter bacteria
73
The ____ is a lateral line for balance
circulatory system
sensory system
excretory system
digestive system
74
The state with the greatest diversity of Freshwater mollusks is
Alabama
Mississippi
Hawaii
Tennesee
75
the symbol "ppt" or parts per thousand is the same as
miligrams of solution per liter of solvent
grams of solute per liter of volume
grams of solvent per liter of solute
milligrams of solvent per liter of solute
76
what is pH?
a measure of ion concentration of a solution
a mesure of how much water something can hold
a measure of the amount solute a solvent can hold
a measyre of hydrogen ion concentration of a solution
77
how does low DO levels affect organisms?
organisms decrease their metabolism to survive on lower amounts of DO
organisms may die or must leave if levels get too low
organisms go through more cellular respiration
organisms eat more
78
how does a fish breathe
water thru mouth over gil fil. where o2 moves via osmosis
water thru nares over gill fil. o2 diffuses into bloodstream
water thru nares over gill fil. where o2 moves via osmosis
water thru mouth over gill fil. o2 diffuses into bloodstream
79
how many Chambers are in the heart of a bony fish?
4
3
1
2
80
the largest aquaculture producing nation is
USA
Thailand
japan
China
81
which country is not matched with the correct historical facts?
ancient hawaii-- aquaculture of pacific threadfin (Moi)
ancient egypt- aquaculture of tilapia
ancient china- the polyculture of carps
the usa- the first aquaculture business
82
a solution has a pH of 7.0 what would happen to the pH if h ions were added?
ph would go down
ph would stay the same
pH would go up
none of the answers are correct
83
The state with the greatest Freshwater fish diversity is
Alabama
Georgia
Tennessee
Mississippi
84
what is the scientific name for channel catfish?
procambus clarkii
onycorhynchus mykiss
italuarus punctatus
procambus zonangulas
85
all of the following are true of recirculating aquaculture systems except____?
it is the riskiest type of aquaculture
power outages are problematic
it is technically the most difficult type of aquaculture
it uses more space and water than other types of systems
86
a PH of 3 is how many times more acidic than a pH of 5
2
100
20
10
87
the first species to be involved in aquaculture?
trout
carp
tilapia
catfish
88
the most accurate (true to life) indication of energy flow through the ecosystem is ________?
food pyramid
food web
food chain
food matrix
89
which is a reason why the US is not a more prominent world power in aquaculture?
the cost of land and labor in the us is higher than most countries
the lack of adequate water resources
the lack of knowledge and expertise
the lack of adequate infrastructure
90
which of the following performs biological filtration?
nitrifying bacteria
plants
all answer choices are correct
performed by living organisms
91
what is a good range of do for lake lipsey?
0-6 ppm
all answers are correct
4-6 ppm
1-4 ppm
92
Which of the following is not a characteristic of a sustainable fisheries species.
A high reproductive rate.
An early reproductive age.
All of these are characteristics of a sustainable fisheries species.
A fast growth rate.
93
settle-able solids refers to
the solids that remain on filter paper after filtering a water sample
the solids that pass through the filter paper after filtering a water sampl
the large solids that settle out in still water after about 1 hour
the solids small enough to be chemically dissolved in the water
94
alkalinity is a measure of
the amount of carbon in the water
the ability of water to resist ph changes
the amount of calcium and magnesium in the water
the mount of carbonate in the water
95
Which is true regarding the status of world wild caught fisheries
Most fish species are currently regulated and are recovering.
Aquaculture is required to meet world seafood demand.
The numbers of large size, high values fishes caught has greatly decreased.
The weight of fish harvested from the oceans is relatively stable.
96
_____ breaks down the food a fish consumes.
sensory system
digestive system
circulatory system
excretory system
97
hardness is defined as
the amount of calcium and magnesium in the water
the amount of carbonate in the water
the amount of sodium and potassium in the water
the amount of ammonia and nitrite in the water
98
cartilaginous fishes that include sharks, skates, and rays
class osteichthyes
superclass agnatha
superclass gnathostomata
class chondrichthyes
99
what is the most common form of aquaculture?
pond culture
cage culture
recirculatory systems
raceways
100
suspended solids refers to:
the solids that remain on filter paper after filtering a water sample
the solids small enough to be chemically dissolved in the water
the small solids that remain afloat in still water after about an hour
the solids that pass thru the filter paper after filtering a water sample

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