Lecture 4 - Fish and parasitic diseases

Question 1

Answer 1

Question 2

Answer 2

Question 3

Answer 3

Question 4

Answer 4

Question 5

Factors related to the fish farming environment that promote
the development of a parasitic disease

Answer 5

• INTRODUCTION OF NEW FISH
• DENSITY IN THE TANK
• WATER CHARACTERISTICS
• ORIGIN OF WATER
• STRUCTURAL CHARACTERISTICS OF THE FISH FARM
• HANDLING

Question 6

WATER CHARACTERISTICS

Answer 6

Question 7

CLINICAL SIGNS/SYMPTOMS OF PARASITIC DISEASES

Answer 7

Question 8

Answer 8

Question 9

Answer 9

Question 10

what lesions in fish?

Answer 10

• skin
• gills
• eye
• fin

Question 11

Answer 11

Question 12

bringing Samples to the lab

Answer 12

Question 13

Answer 13

Question 14

Preservation and identification of the parasites in fish

Answer 14

Question 15

HISTOLOGICAL EXAM

Answer 15

Question 16

Answer 16

Question 17

AMYLOODINIUM OCELLATUM
hosts

Answer 17

Question 18

Answer 18

Question 19

in what environments is the parasite Amyloodinium ocellatum likely to occur?

Answer 19

• In ponds, in lagoons, or tanks, where there is a low distance between the
  bottom and the fish
• Rare in offshore and inshore cages
• For the distance, bottom, and flow

Question 20

Answer 20

1. A ciliate causing “white spot disease” by breaking host epithelium and developing resistant cysts.
2. Theronts, which attach to the host and invade tissues.

Question 21

Cryptocarionosis by Cryptocaryon irritans

Answer 21

Question 22

Answer 22

Question 23

Answer 23

1. Intensive inland systems, such as those used for seabream farming, are favorable due to high densities and poor water flow.
2. Control methods include UV water treatment, tank disinfection, removing dead fish, and quarantine for at least 20 days at 25°C.

Question 24

Answer 24

Question 25

Answer 25

Question 26

LC of Neobenedenia melleni

Answer 26

Question 27

Life cycle of Neobenedenia seriolae

Answer 27

Question 28

what is a basic preventive measure for avoiding the introduction of this adaptable monogenean ( Neobenedenia) into aquarium/exhibition tanks

Answer 28

Question 29

MICROCOTILIDOSIS by Sparicotyle chrysophrii

Answer 29

Question 30

some facts about (1) Monogena Capsalidae and (2) Sparicotyle chrysophrii

Answer 30

Question 31

Answer 31

• In tuna
• Live inside CVS, eggs released in gills that cause respiratory problem

Question 32

name a crustacean parasite

Answer 32

Question 33

facts about Caligus

Answer 33

Question 34

LC Caligus spp.

Answer 34

Question 35

Answer 35

Question 36

direct LC of Enteromyxum leei

Answer 36

Question 37

Answer 37

Question 38

Answer 38

Question 39

Answer 39