Chapter 25: Aquaculture Identification and Production Management
MATCHING
Match the following terms with the correct definition.
a.
plankton
m.
raceway
b.
tank
n.
gills
c.
spawn
o.
milt
d.
swim bladder
p.
operculum
e.
caudal fin
q.
sac fry
f.
dropsy
r.
barbels
g.
fingerling
s.
hatchery
h.
ich
t.
expressing
i.
fry
u.
dissolved oxygen
j.
mollusk
v.
scales
k.
mouth brooder
w.
carapace
l.
spawning
x.
pincers
1. serve as lungs that filter out oxygen in the water to allow fish to breathe
2. tail that acts as a propeller to move the fish through water
3. outer covering of a fish’s body
4. sensory devices that allow fish to detect food, danger; or movement in the water
5. structure that acts like a small balloon and allows a fish to float and balance in water
6. gill cover that divides the head from the trunk
7. the thorax of a fish
8. long and narrow water structures with flowing water
9. aquatic species that have a thick, hard shell and no limbs
10. plants that grow in water that has access to sunlight
11. pair of structures located on the head of some arthropods that serve as protection and sensory
organs
12. large round area that holds water and varies in size
13. gas found in water for living organisms to breathe
14. breeding or mating in fish
15. yolk sac of fish that is attached for a day after hatching
16. immature fish greater than an inch in size but not market size
17. a group of fish eggs
18. fish that incubate their eggs in their mouth for hatching
19. newborn fish larvae
20. area where fish eggs are fertilized and hatched and adult breeding fish are housed for
breeding purposes
21. fish sperm
22. common fish disease caused by a protozoan parasite that causes fish to develop white spots
over the body and fins
Match the following terms with the correct definition.
a.
the reproduction or breeding phase of fish
b.
immature fish over an inch in size
c.
plant source found naturally in water
d.
fin on the tail
e.
a mixture of salt and fresh water
f.
fluid build up in body due to a bacteria or virus
g.
nest eggs of fish
h.
sensory devices that help detect danger or food
i.
immature fish under an inch in size
j.
fin on the back
k.
structures that act as lungs as water crosses over them
l.
gill cover that divides the head from the trunk
m.
salt content of water
23. operculum
24. barbs
25. spawn
26. plankton
27. fingerling
28. gills
29. caudal fin
30. brackish water
31. salinity
32. ascites
MULTIPLE CHOICE
1. Which of the following is NOT a source of fin rot?
a.
wounds from aggressive fish
c.
unclean water
b.
bacteria of a water source
d.
parasite in water source
2. How often are fry fed?
a.
1-2 times daily
c.
hourly to multiple times daily
b.
2-3 times daily
d.
once a day or every other day
3. What percentage of their body should fish be fed?
a.
5%
c.
1%
b.
3%
d.
6%
4. Which of the following is NOT a characteristic of aquatic fish?
a.
having gills
c.
having testicles
b.
having operculum
d.
having barbels
5. Which of the following animals is a mollusk?
a.
oyster
c.
crab
b.
shrimp
d.
lobster
6. Which type of water facility is commonly used in hatcheries?
a.
ponds
c.
tanks
b.
raceways
d.
vats
TRUE/FALSE
1. A bivalve aquatic animal has only one part or half of a shell.
2. Salt water is considered over 16.5 ppt.
3. Crabs can live in brackish water.
4. There are more cool water species of animals than warm or cold.
COMPLETION
1. What provides oxygen transfer within the water to provide dissolved oxygen to fish?
2. What is the term for fish sperm?
3. What muscle allows mollusks to open and close their shells?
4. What is a carapace? ________________________________
5. What type of structure allows fish to float? ________________________________
6. A _______________ has a bony outer shell and may live in or outside of water.
7. The ___________________ is the number of aquatic species in a volume of water.
8. A ________________ has 2 shells and is a mollusk.
9. Mollusks with shells have a or an __________________ muscle that allows the shell to open
and close.
10. Salt in water is measured in __________________ to determine the salinity content.
11. _____________________ are mature breeding fish used for breeding and reproduction.
12. _________________ is done by placing pressure on the abdomen to remove eggs or sperm.
13. ______________________ is a disease commonly called “dropsy” that causes a fish to swell
up with fluid.
14. _____________ is a bacterial disease that affects a fish’s eyes.
15. _____________ is a bacterial condition that causes tissues to erode and wear away.
SHORT ANSWER
1. List 4 common aquaculture fish species.
2. List 4 examples of mollusk species.
3. List 5 aquaculture production systems.
4. The three types of water required by aquaculture species are ________________,
___________________, and ______________________.
5. List 3 water temperatures.
6. List 3 types of food to feed fish.