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Fish > CT1 > Flashcards

CT1 Flashcards

1
Q

Pyloric caeca is present in carnivorous or herbivorous fish species?

A

Carnivorous fish species

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2
Q

In fish heart blood is:

A

deoxygenated

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3
Q

Cycloid scales are present in:

A

Common carp

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4
Q

Hepatopancreas is present in:

A

Prussian carp

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5
Q

Old tank syndrome is term for poisoning by:

A

Nitrate

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6
Q

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

A

Afferent branchial arteries - efferent branchial arteries - dorsal aorta

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7
Q

In arteriae branchiales efferente blood is:

A

Oxygenated

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8
Q

Live feed is typical for:

A

Carp aquaculture

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9
Q

Salmon aquaculture is:

A

Intensive type of aquaculture

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10
Q

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

A

1.5 - 2 mg/L

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11
Q

Herbivorous fish tract structures:

A

Missing stomach
Have long intestine, pharyngeal teeth and hepatopancreas

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12
Q

Otolits are part of:

A

Ear labyrinth

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13
Q

Adipose fin is present in:

A

Salmonid fish

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14
Q

One chambered air bladder is typical for:

A

Rainbow trout

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15
Q

Pharyngeal teeth is present in:

A

Herbivorous fish species

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16
Q

Catadromous are:

A

Eels

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17
Q

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

A

tissue damage

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18
Q

Carnivorous fish digestive tract:

A

Stomach
Short intestine
Teeth in oral cavity

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19
Q

For carp aquaculture is characteristic:

A

Polyculture
Breeding in ponds
Southern areas

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20
Q

Function of cranial (anterior) part of kidney is:

A

Hematopoietic function

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21
Q

Ganoid scales are present in:

A

Sturgeon

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22
Q

Labyrinth is:

A

Accessory breathing organ

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23
Q

Pelvic (ventral) fins are:

A

Paired

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24
Q

Preferable pH for breeding of atlantic salmon is:

A

6-8.5

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25
Q

The temperature range for salmon is:

A

0-25*C

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26
Q

Following parts of fish blood system:

A

Afferent vessels - efferent vessels - aorta dorsalis

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27
Q

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

A

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

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28
Q

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

A

50-70%

29
Q

Which stage of atlantic salmon is the most aggressive:

A

Parr

30
Q

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

A

7-8.5

31
Q

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

A

ALready lower than 80%

32
Q

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

A

Lower than 40%

33
Q

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

A

Higher than 0.02 mg/L

34
Q

Exposure to light during egg and alevin stage has:

A

negative effect

35
Q

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

A

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

36
Q

Which fish or fish-like species are homeothermic?

A

Bluefin tuna, some species of sharks

37
Q

Definition of the term eurythermal?

A

Able to tolerate a wide range of temperatures

38
Q

Definition of the term stenothermal:

A

Can only tolerate temperatures of a narrow range

39
Q

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

A

Near the bottom

40
Q

What is the ideal temperature for growing carp?

A

20-25*C

41
Q

The meristic characters are:

A

Countable structures

42
Q

The morphometric characters are:

A

Measureable structures

43
Q

What does polyandry mean?

A

Female with multiple mates

44
Q

What does polygony mean?

A

Male with multiple mates

45
Q

What does pelagophylous mean?

A

They spawn near the water column, eggs are floating

46
Q

What does phytophilous mean?

A

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

47
Q

What does speleophilous mean?

A

Spawning in cave of shelters - under rocks

48
Q

What does ostraphilous mean?

A

Spawning into other water animals (invertebrates)

49
Q

Which fish species are anadromous?

A

Salmon and sturgeon

50
Q

What does protogyny mean?

A

Organism start as female and later change into male

51
Q

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

A

Clasper

52
Q

For which species is ‘‘bubble nesting’’ characteristic?

A

Betta fish (fight fish)

53
Q

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

A

African cichlids

54
Q

What is dissolved oxygen content ideal for breeding of salmonids?

A

10-16 mg/L

55
Q

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

A

6-8 mg/L

56
Q

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

A

Below 7 mg/L

57
Q

Which breeding system are semi-open cultured?

A

Salmon cages

58
Q

Closed aquaculture system is not:

A

Cage

59
Q

The best breeding systems for health control are:

A

Small aquariums

60
Q

Sea cages for breeding of atlantic salmon are:

A

Monoculture and intensive breeding systems

61
Q

Carp aquaculture is:

A

Polyculture and extensive breeding system

62
Q

Feeding of atlantic salmon in adult stages is especially by:

A

Artificial feed

63
Q

Common carps are:

A

warm water fish species

64
Q

Atlantic salmon is:

A

cold water fish species

65
Q

Gestation period of Latimeria chalumnae is:

A

around 3 years

66
Q

Which lungfish has just one lung?

A

Australian lungfish

67
Q

What is native distribution of paddlefish?

A

China and North America

68
Q

By reproduction strategy, sturgeons are:

A

Anadromous

69
Q
A

Fish (1 decks)

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