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collage year 2 > fish > Flashcards

fish Flashcards

1
Q

how do you tell the difference between male and female fish

A

females have a moon shaped slip wheras the male does not

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2
Q

how do fish reproduce

A

the majority of fish reproduce sexially via sperm produces from testes in the male and ova produces from ovareies in the female

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3
Q

what does hermaphrodites mean

A

have both testies and ovaries

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4
Q

what does parthenogenesis mean?

A

when the female egg develops into a new individual without fusing with sperm cells (asexial)

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5
Q

what does male gonad mean

A

testes

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6
Q

describe male gonad

A

two elongated organs in which body cavity either side of the kidneys which increases in size with sexial maturity

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7
Q

what does milt mean?

A

sperm secreation of fish

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8
Q

what does epididymis mean

A

stores mature sperm

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9
Q

what are seminiferous tubules

A

are in the testes amd converts serm cells to spermatozoa and release sperm outside the body to fertilise eggs

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10
Q

what is the female gonad

A

ovaries

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11
Q

what does oviduct mean

A

carry ova from the ovaries to outside the fish body

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12
Q

superior mouth

A

the lower jaw is larger than the upper jaw.

usually feed at the surface

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13
Q

what do fish with superior mouths eat

A

feed on insects and other fish with swim near the surface

they lie and wait for prey above them and strike from below

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14
Q

terminal mouth

A

most common mouth shape among fish

both jaws are the same length

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15
Q

what do terminal mouthed fish eat

A

often omnivours

eat on the move

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16
Q

inferior mouths

A

also called sub-terminal or ventrical mouths

lower jaw is smaller than upper jaw

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17
Q

what do inferior mouther fish eat

A

bottom feeders ofetn eating alge of of the floor and walls of tank

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18
Q

prostrusible mouth

A

allows fish to extend and reach in attempt in snach prey

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19
Q

elongated mouth

A

snout allows fish to poke into crevises and holes

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20
Q

what do elongated mouthed fish eat

A

scoops up insecs and particles

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21
Q

beaked mouths

A

two hard peices that are hindges and come together like scissors which allows them to crush hard shells of invertibrates

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22
Q

describe a carnivour fish

A

an animals that primarly eats meat

sharks

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23
Q

describe a herbivour fish

A

aniamls that eat plants

clownfish

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24
Q

describe omniboir fish

A

eats both plants and meat

gold fish

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25
Q

decribe insectivour fish

A

eats insects

rainbow fish

26
Q

describe a browser feeder

A

type of hurbivour
browsing in algae

opertunic feeders

27
Q

describe a surface feeder

A

feeds on the surface of the water

eats from the top section of the water

28
Q

describe a mid water feeder

A

feeds on things in the middle of the water

29
Q

describe a substrate feeder

A

eats substrate

live in or around there food

30
Q

describe a fitler feeders

A

fiteres the food through special stractures befor eating

31
Q

what are the advantage and disadvantages of scatter feeding

A

advantage :gets them moving
disadvantage: cannot measure exactly how much eat fish has eaten

32
Q

jnkl

A

j

33
Q

what are the advantage and disadvantages of hand feeding

A

advantage :
disadvantage

34
Q

what are the advantage and disadvantages of drip feeding

A

advantage :
disadvantage

35
Q

what are the advantage and disadvantages of freequency feeding

A

advantage :
disadvantage

36
Q

what chemilcal do fish produce as a waste product

A

amonia which coverts to nitro which converts to nitrogen

37
Q

what does

A
38
Q

what is an endoparacite

A

a paracite inside the body

39
Q

what is an ectoparacite

A

a paracite outside the body

40
Q

how to prevent fish gwtting disease

A

if water quality is maintained, stress is avoided, diseases rarly occur

41
Q

describe fungal disease

A

fungal diseases are often a secondry infectionsof an open wound or damaged scales.

42
Q

what could wounds or damaged scales be caused by

A

aggression
handeling
paracite infection
infection
ulceration

43
Q

name the types of fish diseases

A

parasidic
bacterial
viral
fungal

44
Q

name one diease from each
Paracidic
bactarial
viral
fungal
other

A

gill flukes

cloudy eye

lympgocytis

body fungus

pop eye

45
Q

what are symptoms of a bacterials diseasesin fish

A

lethatrgic swimming
loss of apitite
patches of skin ulceration

46
Q

what are causes of bacterial disease in fish

A

poor water quality

inpropper diet

build up of waste

47
Q

how to prevent bacterial diseases in fish

A

avoid over crowding

use fish flakes within a month

keep tank clean

48
Q

describe Furuculosis

A

bacterial disease
found mainly in salmon and trout

no human health risk

traeated with antibiotics

hemorrages on the skin, mouth and fin bases

49
Q

describe cotton mouth

A

caused by bacteria

an infection will usually first manifest in fish by causing frayed and ragges fins

ulceration of the skin

treated with antibiotics

50
Q

describe vibrosis

A

caused by bacteria

haemorrhage to intestines, body cavity, spleen and muscles

treated with antibiotics –

51
Q

describe mycobacteria

A

Fish TB

caused by bacteria

wasting away

loss of body condition
skin ulcers

no effective treatment

prevention via quarenteen

52
Q

bacterial gill disease

A

caused by diesase

highly contagiouse

fusing together of gil filaments

causes resptiory isues

53
Q

fin/ tail Rot

A

bacterial but sometimes with secodry fungal disease

caused by poor water conditions and stress

a water based treatment or inproving the enviroment

54
Q

describe Dropsy

A

a build up of fluid inside the body cavity or tissues

signs: swelling abdomen
eyes that are beginnin to swell and bulge

55
Q

describe Ichthyophthirius multifillis

A

known as ICK

causes an increased respitory rate and ulcers on skin

treated with antibiotics

56
Q

describe Digenea

A

Paraciyes which live on more than one host to complete their life cycle

57
Q

describe monogenea

A

small parasitic flatworms mainly found on skin or gills of fish.
causes open irritated wounds

antibiotics

58
Q

Costia

A

An parasite which caiseing grey spots and is ichy

59
Q

what are the three categories when it comes to the classification of fish

A

cartilaginous fish
jawless fish
bony fish

60
Q

describe cartilaginous fish

A

have true bones and possess a skeleton made up of cartilage
only the teeth are certified
includes sharks, skates and rays

61
Q

describe jawless fish

A

jaws are absent
no paired fins
bony scales
have gill pouches
filter feeding mouths
have no stomach

62
Q

describe bony fish

A

have bony skeletons and numerous vertebrae
paired fins
have jaws
have a swim bladder

collage year 2 (5 decks)

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