Fish diseases and parasites - Quiz
A) Tapeworm B) Salmon fluke C) Sea lice D) Leech
A) 2002 B) 1984 C) 1990 D) 1972
A) Monogenean parasite B) Copepod C) Bacterium D) Virus
A) 1995 B) 1972 C) 2002 D) 1984
A) Fungal B) Bacterial C) Parasitic D) Viral
A) Isolation of infected individuals B) Vaccination of remaining fish C) Total eradication of the entire fish stock D) Use of antibiotics
A) Excessive mucus production B) Dark patches on the skin C) Swollen fins D) Pale gills
A) They are larger B) They are not part of the immune system C) They have a different cell membrane D) They contain DNA
A) Gulping for air near the water surface B) Refusing to move at all C) Hiding at the bottom of the tank D) Aggressive swimming
A) Adding iodine to the water B) Increased water temperature C) Selective breeding for size D) Developing a vaccine
A) The high salt content of the ocean B) Constant movement of the fish C) Natural predation on weakened individuals D) Low fish population density
A) Crowded net pens B) Lack of sunlight C) The use of artificial feed D) Cold water temperatures
A) Atlantic salmon B) Wild pink salmon C) Arctic char D) Rainbow trout
A) Natural oils B) Herbal supplements C) Probiotics D) Antibiotics and pesticides
A) Migratory behavior B) Low parasite resistance C) High biodiversity D) Uniform body size
A) Nematodes B) Myxosporidia C) Platyhelminthes D) Crustaceans
A) Isopods B) Leeches C) Monogeneans D) Nematodes
A) They only infect one host species B) They are free-living in the ocean C) They have several hosts D) They do not require a host to reproduce
A) About thirty B) About fifty C) About five D) About ten
A) Adaptation to new hosts B) Co-extinction C) Rapid multiplication D) Migration to different reefs
A) Caligus clemensi B) Lepeophtheirus salmonis C) Henneguya salminicola D) Pfiesteria piscicida
A) Organically polluted land runoff B) Decreased fish population density C) Increased salinity levels D) Cooler ocean temperatures
A) Adhesive mucus B) Neurotoxin C) Digestive enzymes D) A paralyzing pheromone
A) On the external skin B) In the flesh C) In the gills only D) In the blood stream
A) By producing antibodies to kill the parasite B) By increasing mucus production to flush out the parasite C) By shedding the affected skin D) By walling off the infection into cysts
A) An invertebrate B) Marine mammals C) A predatory bird D) A larger predatory fish
A) Pink B) Chinook C) Sockeye D) Coho
A) Yes, if the fish is consumed raw B) No, it is harmless to warm-blooded animals C) Yes, it is a dangerous zoonotic pathogen D) Yes, it can cause skin infections in humans
A) Less than 10% B) Exactly 50% C) Approximately 25% D) Over 80%
A) Caligus rogercresseyi B) Henneguya salminicola C) Pfiesteria piscicida D) Myxosporean trout-fly
A) Scomber B) Labroides C) Etroplus D) Mola
A) Pterophyllum scalare B) Oreochromis niloticus C) Labroides dimidiatus D) Etroplus maculatus
A) Exactly 10 B) Over 100 C) More than 40 D) Less than 5
A) Deep sea thermal vents B) Mangrove forests C) Coral reefs D) Drifting kelp fields
A) Koi herpes virus B) Streptococcosis C) Lactococcosis D) Furunculosis
A) Huffmanela ossicola B) Paravortex C) Gyrodactylus salaris D) Philometra fasciati
A) Within the gill bone B) In the swim bladder C) In the stomach D) On the skin surface
A) Paravortex B) Gnathiid isopod C) Didymozoid trematode D) Cymothoa exigua
A) Paravortex B) Huffmanela ossicola C) Monogeneans D) Philometra fasciati
A) Granulocyte depletion B) Ammonia poisoning C) T-cell stagnation D) Lymphoid deficiency
A) Anterior kidneys B) Gut tissue C) True lymphoid organs D) Macrophages
A) Spleen B) Spiral valve C) Leydig's organ D) Epigonal organ
A) The spleen B) A mass associated with the meninges C) The anterior kidney D) The heart
A) Granulocytes B) Neutrophils C) Lymphocytes D) Erythrocytes
A) Shark B) Zebrafish C) Hagfish D) Sturgeon
A) The kidney B) The thymus C) The meninges D) The heart
A) Anterior kidney B) Leydig's organ C) Epigonal organs D) Spiral valve
A) Tapeworm infection B) Hemorrhagic septicemia C) Roundworm disease D) Whirling disease
A) -10 °C B) 0 °C C) -20 °C D) -5 °C
A) 100% B) 50% C) 25% D) 75%
A) Myxobolus cerebralis B) Anisakis C) Clonorchis sinensis D) Diphyllobothrium
A) Clonorchis sinensis B) Diphyllobothrium C) Myxobolus cerebralis D) Anisakis
A) Viral hemorrhagic septicemia B) Diphyllobothrium C) Anisakis D) Clonorchis sinensis
A) Antarctica B) Southeast Asia C) Central Canada D) Western Australia
A) Boiling, burning, or freezing B) Soaking in fresh water C) Removing the skin only D) Washing with soap
A) No change since 1980 B) A sharp increase since 1980 C) A decline since 1980 D) They have been completely eradicated |
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