FISH

Question 1

class: “lacking jaws”

Answer 1

agnasthostomata

Question 2

class of cartilaginous fish including sharks and rays

Answer 2

chondrycthyes

Question 3

bony fish

Answer 3

osteichthyes

Question 4

example of bony fish

Answer 4

blob fish

Question 5

examples of agnasthostomata

Answer 5

eels, lampreys,

Question 6

fish family of guppies mollies swordtails

Answer 6

cichlidae

Question 7

fish family of milk fish

Answer 7

chanidae

Question 8

fish family of salmon and trout

Answer 8

salmonidae

Question 9

fish family of arrowanas and arapaima

Answer 9

osteoglossidae

Question 10

salwater fish are ___ to their surroundings

Answer 10

hypotonic

Question 11

as sea water passes through the mouth and over the gill membranes, water molecules___ out of the blood into the sea water by __

Answer 11

diffuse
osmosis

Question 12

saltwater fishes produces ___ volume of urine

Answer 12

small

Question 13

drinking sea water brings a __ quantity of salt into the blood and this has to be
removed.

Answer 13

large

Question 14

to replace the water they lose, saltwater fish drink sea water. To produce a small a volume of urine they must have a ___ rate of filtration of water into the ____.

Answer 14

low
kidney tubules

Question 15

salwater fish kidneys have few small ____

Answer 15

glmoeruli

Question 16

Salt is removed by ____in the gills, which actively transport salts from the blood into the surrounding water.

Answer 16

chloride secretory cells

Question 17

freshwater fish are ___ to their surroundings

Answer 17

hypertonic

Question 18

water molecules diffuse out of the blood into the sea water by osmosis

a. saltwater fish
b. freshwater fish

Answer 18

A

Question 19

water molecules diffuse from the fresh water into the blood by osmosis.

a. saltwater fish
b. freshwater fish

Answer 19

B

Question 20

these fish must
produce a very large volume of urine to balance this large intake of water.

Answer 20

freshwater fish

Question 21

o produce a large volume of urine the freshwater fish must remove a large volume of water from the blood by having a __ rate of filtration into the kidney tubules.

Answer 21

high

Question 22

how many cm^3 is 1 L

Answer 22

1000

Question 23

rule of thumb in stocking density

Answer 23

1 g of fish = 4L of water

Question 24

ideal temp and pH

Answer 24

25-32 C
6.7 -9.9

Question 25

supersaturation of DO due to leaks in pump or valve system; dense algal bloom

Answer 25

Gas bubble dz

Question 26

Associated with malfunction of the swim bladder as well as over-handling, high temperature, over-illumination and dense algal bloom (O2 depletion at night, supersaturation during the day

Answer 26

swim bladder stress syndrome

Question 27

affected fish gather at water inlets and outlets; wide gaping mouth swimming at water surface showing rapid opercular movement

Answer 27

hypoxia

Question 28

corroded and milky skin; corroded gills

Answer 28

alkalosis

Question 29

rapid swimming; gasping; increased mucus secretion

Answer 29

acidosis

Question 30

temperature and salinity shock; low oxygen; overcrowding; rough handling; gill fouling

Answer 30

muscle necrosis in shrimp

Question 31

opaque white areas in abdomen; blackening on edges of uropod; woodgrain appearance of abdominal muscle in post larvae; opaque white areas in abdomen

Answer 31

muscle necrosis in shrimp

Question 32

ulcerative lesions on the head and pectorals, dorsal and upper tail fins

Answer 32

sunburn

Question 33

partial or complete rigid flexure of the tail; shrimps swim with humped abdomen; fully cramped shrimps lie on sides at the pond bottom; incomplete moulting

Answer 33

body/tail cramp in shrimp

Question 34

presence of old exoskeleton attached to newly melted larvae, especially in appendages; abnormal swimming

Answer 34

body/tail cramp in shrimp

Question 35

tx for carp pox

Answer 35

no cure but myxazin can hel[