Chapter 14: Ornamental Fish Identification and Production Management
TRUE/FALSE
1. It is best to add water to the tank when capturing a fish.
2. A dark net is the best color to use when catching a fish.
3. Nets should be coarse and stiff in order to catch a fish more easily.
4. A net can be allowed to sit in the water for fish to become accustomed to it.
5. The net should be moved quickly in the water to catch fish.
6. When a fish is caught in the net it should be kept in the tank to reduce stress.
7. If a fish becomes tangled in a net, it should be cut free.
8. Some fish can be caught with a net by bringing it up from beneath them.
9. Fish should never be caught with the hands.
10. A plastic baggie should never be used to capture a fish.
11. Two nets can be used to capture a fish.
12. Heavy objects, such as a bottle, can be useful in catching fish.
13. Most ornamental fish species are live young bearers.
14. Aging is done over a period of at least 7 days.
15. The ideal pH level of water for most fish is an average of 8.0.
16. Fish require bacteria in the water to be healthy.
17. The water and pH levels should be checked monthly.
MATCHING
Match the following terms with the correct definition.
a.
photosynthesis
m.
spawning
b.
circulation
n.
gills
c.
plankton
o.
vat
d.
floss
p.
nitrifier filter
e.
pool
q.
aging
f.
acidity
r.
salinity
g.
fry
s.
ich
h.
alkalinity
t.
fin rot
i.
lateral line
u.
dorsal fin
j.
specific gravity
v.
dissolved oxygen
k.
scavenger
w.
ascites
l.
fish fungus
x.
pH level
1. process done by collecting water and allowing it to stand in an open container for at least 5
days
2. to remove foreign materials from the water
3. bacterial or viral infection that causes a buildup of fluid to cause the fish to lie on its side and
have difficulty swimming
4. water measurement at levels above 7.0
5. filter material made of gravel, charcoal, and fiber
6. salt content in water
7. movement of water
8. located on the back of fish and used to steer the fish through water
9. water measured at levels below 7.0
10. known as “cotton wool” disease due to the appearance of tufts of growth that occur on the
skin of the face, gills, or eyes that resemble cotton or wool
11. organ located just under the scales that picks up vibrations in the water
12. large tank of water commonly used for breeding or for reproductive systems
13. tiny plants
14. oxygen that has been dissolved in the water and is removed by the fish’s gills and is used for
breathing
15. newborn baby fish
16. supplementing the action of bacteria; expensive and onlu used in large, specialized tanks
17. mating
18. organs that allow a fish to breathe
19. weight of a liquid
20. parasitic protozoan disease caused by a one celled organism to causes white spots that develop
over the fins and body
21. number that determines if water is acidic or alkaline
22. bacterial disease that begins when fin tissues start to erode and the tissues become inflamed
Match the following terms with the correct definition.
a.
newborn baby fish
b.
filter material made of gravel, fiber, and charcoal
c.
tool used to measure specific gravity
d.
water measured at levels below 7.0
e.
bacterial infection causing fluid build up
f.
movement of water
g.
group of five or more breeding fish
h.
weight of liquid
i.
water measured at levels above 7.0
j.
mating or breeding
k.
poisonous or harmful
l.
number that determines acid or alkaline water
m.
parasite that causes white spots on the body
23. acidic
24. circulation
25. fry
26. hydrometer
27. ich
28. pH level
29. spawning
30. toxic
31. shoal
32. floss
COMPLETION
1. Ornamental fish are very different and have much ______________.
2. The __________ ___________is the term for the tail of a fish.
3. Most fish are covered over the body with ___________ that serve as protection.
4. Fish can live in two water types, either _________ or _________.
5. Groups of fish care called ___________ or ______________.
6. The organ known as the _____________ ___________ picks up vibrations in the water.
7. The _____________ _____________ allows fish to float in water.
8. A net used to capture a fish should be a ___________ color.
9. A group of five or more breeding fish is called a _________________ color.
10. Goldfish may live as long as ____________ years.
11. The ______________________ warms the water of a tank.
12. Air removed by fish gills is called ____________________.
13. A _______________ filter is located outside of the tank and cleaned every other week.
SHORT ANSWER
1. List 3 net tips for capturing fish.
2. List 3 tail fin shapes.
3. List 3 breeds of fish that bear live young.
4. List 3 items that may be placed in a tank to protect eggs.
MULTIPLE CHOICE
1. Which of the following pH levels of water is alkaline?
a.
7.5
c.
1.0
b.
4.0
d.
6.5
2. Which of the following is NOT true about nets used to capture fish?
a.
Nets should be soft and move easily.
b.
The net should be moved fast to catch fish.
c.
Nets should be dark in color.
d.
If fins become caught in the net, they can be cut free with scissors.
3. Which of the following fish bear live young?
a.
mollies
c.
gouramis
b.
goldfish
d.
catfish
4. Glass on tanks and aquariums should be _________ in thickness.
a.
102 inches
c.
to inch
b.
to inch
d.
to inch
5. Which of the following filters supplements the action of bacteria and is used in large,
specialized tanks?
a.
outside filter
c.
canister filter
b.
nitrifier filter
d.
undergravel filter