CT1

Question 1

Pyloric caeca is present in carnivorous or herbivorous fish species?

Answer 1

Carnivorous fish species

Question 2

In fish heart blood is:

Answer 2

deoxygenated

Question 3

Cycloid scales are present in:

Answer 3

Common carp

Question 4

Hepatopancreas is present in:

Answer 4

Prussian carp

Question 5

Old tank syndrome is term for poisoning by:

Answer 5

Nitrate

Question 6

The correct order of the consecutive portion of fish blood system:

Answer 6

Afferent branchial arteries - efferent branchial arteries - dorsal aorta

Question 7

In arteriae branchiales efferente blood is:

Answer 7

Oxygenated

Question 8

Live feed is typical for:

Answer 8

Carp aquaculture

Question 9

Salmon aquaculture is:

Answer 9

Intensive type of aquaculture

Question 10

Asfyxia in common carp is when the concentration of oxygen is:

Answer 10

1.5 - 2 mg/L

Question 11

Herbivorous fish tract structures:

Answer 11

Missing stomach
Have long intestine, pharyngeal teeth and hepatopancreas

Question 12

Otolits are part of:

Answer 12

Ear labyrinth

Question 13

Adipose fin is present in:

Answer 13

Salmonid fish

Question 14

One chambered air bladder is typical for:

Answer 14

Rainbow trout

Question 15

Pharyngeal teeth is present in:

Answer 15

Herbivorous fish species

Question 16

Catadromous are:

Answer 16

Eels

Question 17

Concentration of un-ionized ammonia around 0.2 mg/L for all stages can cause:

Answer 17

tissue damage

Question 18

Carnivorous fish digestive tract:

Answer 18

Stomach
Short intestine
Teeth in oral cavity

Question 19

For carp aquaculture is characteristic:

Answer 19

Polyculture
Breeding in ponds
Southern areas

Question 20

Function of cranial (anterior) part of kidney is:

Answer 20

Hematopoietic function

Question 21

Ganoid scales are present in:

Answer 21

Sturgeon

Question 22

Labyrinth is:

Answer 22

Accessory breathing organ

Question 23

Pelvic (ventral) fins are:

Answer 23

Paired

Question 24

Preferable pH for breeding of atlantic salmon is:

Answer 24

6-8.5

Question 25

The temperature range for salmon is:

Answer 25

0-25*C

Question 26

Following parts of fish blood system:

Answer 26

Afferent vessels - efferent vessels - aorta dorsalis

Question 27

What is the most common farming system for age categories of atlantic salmon?

Answer 27

Up to the smolt - flow through FW tanks; adult - sea cages

Question 28

How many percentage of the salmon's life does the ongrowing stage represent?

Answer 28

50-70%

Question 29

Which stage of atlantic salmon is the most aggressive:

Answer 29

Parr

Question 30

What is the ideal pH range for salmon breeding in SW environment:

Answer 30

7-8.5

Question 31

What is the saturation of oxygen when the growth and apetite is impaired?

Answer 31

ALready lower than 80%

Question 32

What is the saturation of oxygen when the mortality of salmon starts?

Answer 32

Lower than 40%

Question 33

What is concentration of ammonia that can cause tissue damage in salmon?

Answer 33

Higher than 0.02 mg/L

Question 34

Exposure to light during egg and alevin stage has:

Answer 34

negative effect

Question 35

Parr prefers higher water flow and can tolerate a light intensity between:

Answer 35

30-1000 lux. Lower than 10 lux has negative effect on parr growth

Question 36

Which fish or fish-like species are homeothermic?

Answer 36

Bluefin tuna, some species of sharks

Question 37

Definition of the term eurythermal?

Answer 37

Able to tolerate a wide range of temperatures

Question 38

Definition of the term stenothermal:

Answer 38

Can only tolerate temperatures of a narrow range

Question 39

In which part of the pond will the carp population be during winter?

Answer 39

Near the bottom

Question 40

What is the ideal temperature for growing carp?

Answer 40

20-25*C

Question 41

The meristic characters are:

Answer 41

Countable structures

Question 42

The morphometric characters are:

Answer 42

Measureable structures

Question 43

What does polyandry mean?

Answer 43

Female with multiple mates

Question 44

What does polygony mean?

Answer 44

Male with multiple mates

Question 45

What does pelagophylous mean?

Answer 45

They spawn near the water column, eggs are floating

Question 46

What does phytophilous mean?

Answer 46

They spawn on water or semi-aquatic plants (or terrestrial plants under water surface)

Question 47

What does speleophilous mean?

Answer 47

Spawning in cave of shelters - under rocks

Question 48

What does ostraphilous mean?

Answer 48

Spawning into other water animals (invertebrates)

Question 49

Which fish species are anadromous?

Answer 49

Salmon and sturgeon

Question 50

What does protogyny mean?

Answer 50

Organism start as female and later change into male

Question 51

What is the name of the male copulatory organ in sharks?

Answer 51

Clasper

Question 52

For which species is ''bubble nesting'' characteristic?

Answer 52

Betta fish (fight fish)

Question 53

For which species is mouth incubation characteristic as a reproductive strategy?

Answer 53

African cichlids

Question 54

What is dissolved oxygen content ideal for breeding of salmonids?

Answer 54

10-16 mg/L

Question 55

What is the dissolved oxygen content ideal for breeding of cyprinid fish?

Answer 55

6-8 mg/L

Question 56

What is dissolved oxygen content when asphyxia of salmonids in breeding system can start?

Answer 56

Below 7 mg/L

Question 57

Which breeding system are semi-open cultured?

Answer 57

Salmon cages

Question 58

Closed aquaculture system is not:

Answer 58

Cage

Question 59

The best breeding systems for health control are:

Answer 59

Small aquariums

Question 60

Sea cages for breeding of atlantic salmon are:

Answer 60

Monoculture and intensive breeding systems

Question 61

Carp aquaculture is:

Answer 61

Polyculture and extensive breeding system

Question 62

Feeding of atlantic salmon in adult stages is especially by:

Answer 62

Artificial feed

Question 63

Common carps are:

Answer 63

warm water fish species

Question 64

Atlantic salmon is:

Answer 64

cold water fish species

Question 65

Gestation period of Latimeria chalumnae is:

Answer 65

around 3 years

Question 66

Which lungfish has just one lung?

Answer 66

Australian lungfish

Question 67

What is native distribution of paddlefish?

Answer 67

China and North America

Question 68

By reproduction strategy, sturgeons are:

Answer 68

Anadromous