FISH FISH FISH

Question 1

“Columnaris Disease” is casued by

Answer 1

Flavobacterium columnare

Question 2

________ are the most well-known saltwater bacterial pathogens of fish.

Answer 2

vibrio

Question 3

what is this disease? how to treat?

Answer 3

Aeromonas hydrophila

oxytetracycline in feed

Question 4

what are the 2 important viruses that affect salmon? they are both reportable diseases

Answer 4

Infectious Salmon Anemia (ISA)

Infectious hematopoietic necrosis (IHN)

Question 5

for which fish disease is this true: tempature affects treatment frequency with more frequent treatments being required at higher temperatures

Answer 5

ich/white spot disease

Question 6

what are the 2 important viruses that affect koi and carp? they are both reportable diseases

Answer 6

Koi Herpesvirus (Cyprinid herpesvirus 3)

Spring Viremia of Carp (SVC)

Question 7

what is the cause of furunulosis in fish?

Answer 7

Aeromonas salmonicida

treat with antibiotics/oxytetracylcine or florfenicol

Question 8

how to tell Francisellosis and Mycobacteriosis apart

Answer 8

mycobacteriosis is acid fast positive and francisellosis is acid fast negative

Question 9

__________is a zoonotic disease people can acquire from eating raw or undercooked fish.

Answer 9

Diphyllobothrium latum

Question 10

which stages of ich can be treated?

Answer 10

theront and tomont

treat with formalin/hypersalinity

Question 11

In particular, Koi herpesvirus
presents at ______ temperatures than Spring Viremia of Carp

Answer 11

warmer

Question 12

whirling disease or Myxobolus cerebralis is seen in

Answer 12

salmon

no treatment

Question 13

Gram-positive fish pathogens are less common, but ________ is an example common in ______

Answer 13

Streptococcus iniae

tilapia

Question 14

_________is the most well-known zoonotic fish pathogen, usually presenting in fish with
granulomas and people as non-healing finger wounds

Answer 14

mycobacteriosis/fish handlers disease

Question 15

Most fish bacterial pathogens are ______ with ______and ______ being the most common in FRESH water fish

Answer 15

gram negative rods

Aeromonas spp. and Flavobacterium
spp.

Question 16

a salmon presents like this. what is this disease and how to treat it?

Answer 16

Myxobolus cerebralis/whirling disease

there is no treatment

Question 17

these fish present for the following lesions and also appear to have some gill necrosis. what is this disease?

Answer 17

Flavobacterium columnare /columnaris disease

treat with oxytet or florfenicol

Question 18

this is a saltwater fish. what disease are you worried about?

Answer 18

vibriosis

Question 19

Two key differentials for granulomas in fish are

Answer 19

Francisellosis and Mycobacteriosis.

Question 20

this is a tilapia. what disease are you worried about?

Answer 20

Streptococcus iniae