Fish taxonomy Flashcards

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1
Q

Most primitive class in chordata phylum

A

agnatha

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2
Q

Do chondrichthyes have swim bladders?

A

No

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3
Q

What kind of kidneys do fish have?

A

Mesonephric

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4
Q

Which immunoglobulin do fish produce?

A

IgM and IgZ (thymus and kidneys of zfish)

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5
Q

Where are lymphocytes produced

A

Only thymus

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6
Q

Do fish have bone marrow?

A

No

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7
Q

Physostomes

A

Fish with connection between bladder and alimentary canal

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8
Q

Physoclisti

A

Fish that lack a connection between bladder and alimentary canal - a gas gland introduces gas to the swim bladder

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9
Q

Names of 3 otolith organs

A

utriculus (vestibular)
sacculus (sound detection)
lagena (sound detection)

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10
Q

Main nitrogenous waste

A

Ammonia (NH3)

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11
Q

Goldfish should be maintained at what temp?

A

18-24 C

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12
Q

Zfish should be maintained at what temp?

A

24-28 C

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13
Q

Zfish hardness recs

A

80-200 ppm

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14
Q

Zfish and Gfish pH

A

7-7.6

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15
Q

Zfish conductivity

A

125-2500 uS

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16
Q

3 types of filtration

A

mechanical (particle filtration)
chemical (filtration of ions)
biological (nitrogenous waste)

17
Q

Nitrosomonas

A

ammonium to nitrite (NH4+ –> NO2-)

18
Q

Nitrobacter

A

Nitrite to nitrate (NO2- –> NO3-)

19
Q

Platyfishes and swordtails are used for what kind of research?

A

Spontaneous melanoma

20
Q

Japanese medaka genus/species

A

Oryzias latipes

21
Q

Medaka uses

A

coloration, sexual behavior, development, transgenics

22
Q

XX in Medaka are which color?

A

white

23
Q

XY in Medaka are which color?

A

orange-red

24
Q

Fathead minnow genus/species

A

Pimephales promelas

25
Q

Fathead minnow use

A

Water tox

26
Q

Rainbow trout g/s

A

Oncorhyncus mykiss

27
Q

What does trout sperm contain

A

Protamine

28
Q

Gfish g/s

A

Carassius auratus

29
Q

Gfish use

A

Neuro, endocrine, tox

30
Q

4 ways to take blood from fish

A

Caudal vein
Dorsal aorta
Cardiac puncture
Caudal severance (terminal)

31
Q

MS-222 dose for sedation vs euth

A

Sedation: 5-30 ppm
Euth: 40-100 ppm

32
Q

Another option for anesth/euth

A

Quinaldine sulfate, benzocaine