Tuna Fish - Quiz
  • 1. What is the scientific name for tuna fish?
A) Salmo
B) Thunnus
C) Oncorhynchus
D) Scombridae
  • 2. Which of the following species of tuna is known for its high speeds and agility?
A) Yellowfin tuna
B) Albacore tuna
C) Skipjack tuna
D) Bluefin tuna
  • 3. What is the primary source of food for most tuna species?
A) Plankton
B) Seaweed
C) Fish
D) Krill
  • 4. Which ocean is known for having the largest population of tuna?
A) Southern Ocean
B) Atlantic Ocean
C) Indian Ocean
D) Pacific Ocean
  • 5. What gives certain tuna species their distinctive pink or red flesh color?
A) Carotene
B) Hemoglobin
C) Chlorophyll
D) Myoglobin
  • 6. Which part of the world is known for consuming the most tuna per capita?
A) Italy
B) Japan
C) Australia
D) United States
  • 7. Tuna is a good source of which nutrient?
A) Iron
B) Calcium
C) Omega-3 fatty acids
D) Vitamin C
  • 8. Which type of tuna is commonly used in making sushi?
A) Bluefin tuna
B) Skipjack tuna
C) Albacore tuna
D) Yellowfin tuna
  • 9. Tuna fishing can sometimes result in the accidental capture of what marine animals?
A) Sharks
B) Seals
C) Sea turtles
D) Dolphins
  • 10. What is the name of the method used to catch tuna in schools by encircling them with a large net?
A) Longlining
B) Purse seining
C) Trawling
D) Trolling
  • 11. What species of tuna is commonly used in canned tuna?
A) Skipjack
B) Albacore
C) Bluefin
D) Yellowfin
  • 12. What is the term for removing excess salt from salted tuna slices under running water?
A) Decomposing
B) Desalting
C) Deicing
D) Degreasing
  • 13. Which country is the largest producer of canned tuna?
A) United States
B) Philippines
C) Thailand
D) Spain
  • 14. What is the general term for a young tuna?
A) Juvenile
B) Teen
C) Cub
D) Kid
  • 15. What is the habitat of most tuna species in the wild?
A) Coral reefs
B) Deep sea trenches
C) Open ocean
D) Estuaries
  • 16. What is the substance found in higher concentrations in the flesh of larger tuna that can build up in human tissues?
A) Mercury
B) Cadmium
C) Arsenic
D) Lead
  • 17. Tuna belong to which family of fish?
A) Carcharhinidae
B) Scombridae
C) Clupeidae
D) Salmonidae
  • 18. What is the term for the process of draining and preserving tuna meat in cans?
A) Freezing
B) Canning
C) Drying
D) Pickling
  • 19. What is the popular French term for canned tuna?
A) Thon
B) Crabe
C) Saumon
D) Poisson
  • 20. What is the Japanese term for raw tuna slices often served in sushi?
A) Sashimi
B) Miso
C) Maguro
D) Tempura
  • 21. Which cooking method is commonly used for tuna steaks?
A) Deep frying
B) Boiling
C) Grilling
D) Microwaving
  • 22. How many species are there in the tribe Thunnini?
A) 20
B) 10
C) 25
D) 15
  • 23. What is the maximum length of an Atlantic bluefin tuna?
A) 3.5 m (11.5 ft)
B) 6.0 m (19.7 ft)
C) 5.5 m (18 ft)
D) 4.6 m (15 ft)
  • 24. What is the maximum weight of an Atlantic bluefin tuna?
A) 500 kg (1,102 lb)
B) 900 kg (1,984 lb)
C) 800 kg (1,764 lb)
D) 684 kg (1,508 lb)
  • 25. What is the maximum speed of a yellowfin tuna?
A) 80 km/h (50 mph)
B) 60 km/h (37 mph)
C) 75 km/h (47 mph)
D) 90 km/h (56 mph)
  • 26. What is the term 'tuna' derived from?
A) Latin piscis
B) French thon
C) Andalusian Arabic at-tūn
D) Greek thýnnos
  • 27. What is a dated alternative term for tuna?
A) Thunnus
B) Tunny
C) Scomber
D) Pelagic
  • 28. Which technique for catching Atlantic bluefin tuna involves a maze of nets and is still used today in several countries?
A) Harpoon gun
B) Purse seines
C) Longline fishing
D) Almadraba
  • 29. What is a distinctive feature of a tuna's dorsal fins?
A) Both fins are fixed and cannot move.
B) There is only one dorsal fin with no separation.
C) The first fin is depressible and can be laid down in a groove.
D) The fins are retractable like the pelvic fins.
  • 30. What is the maximum lifespan of an Atlantic bluefin tuna?
A) 40 years
B) 60 years
C) 30 years
D) 50 years
  • 31. Which country approved permits for the first U.S. offshore farming of bigeye tuna?
A) Australia
B) Hawaiʻi
C) Japan
D) Spain
  • 32. In Japan, what does 'shī chikin' mean?
A) Sea chicken
B) Ocean bird
C) Marine hen
D) Fish steak
  • 33. Which genus includes the skipjack tunas?
A) Katsuwonus
B) Euthynnus
C) Auxis
D) Allothunnus
  • 34. What is the relationship between lipid content and mercury distribution in farmed tuna?
A) Equal concentration
B) Directly proportional
C) No relation
D) Inversely related
  • 35. Which organization called for improved warnings about mercury in tuna?
A) Consumers Union
B) Environmental Protection Agency
C) Food and Drug Administration
D) American Medical Association
  • 36. Which part of the bluefin tuna is used for Ventresca tuna?
A) Back fin
B) Belly
C) Tail
D) Head
  • 37. In which year did the opening auction price for bluefin tuna plummet to less than 5% of the previous year's price?
A) 2013
B) 2011
C) 2012
D) 2014
  • 38. What is the average length of an Atlantic bluefin tuna?
A) 2.5 m (8.2 ft)
B) 3 m (9.8 ft)
C) 1.5 m (4.9 ft)
D) 2 m (6.6 ft)
  • 39. What is the name of the method similar to Almadraba used in Sicily?
A) Tonnara
B) Panzarana
C) Balestrina
D) Almadraque
  • 40. How many species were originally thought to belong to the genus Thunnus?
A) Ten
B) Nine
C) Five
D) Seven
  • 41. What is the maximum weight of a bullet tuna?
A) 2.5 kg (5.5 lb)
B) 4.0 kg (8.8 lb)
C) 3.5 kg (7.7 lb)
D) 1.8 kg (4 lb)
  • 42. Which nutrient is not present in canned light tuna in oil?
A) Vitamin D
B) Protein
C) Carbohydrates
D) Phosphorus
  • 43. What percentage of the world's tuna catch is made up by skipjack?
A) 40 percent
B) 70 percent
C) 60 percent
D) 50 percent
  • 44. What is the maximum length of a bullet tuna?
A) 60 cm (1.9 ft)
B) 70 cm (2.3 ft)
C) 80 cm (2.6 ft)
D) 50 cm (1.6 ft)
  • 45. Where was a record-setting 881 lb tuna caught in November 2011?
A) Maine
B) California
C) Florida
D) Massachusetts
  • 46. What is the international standard maximum histamine level in canned tuna?
A) 300 milligrams per kilogram
B) 500 milligrams per kilogram
C) 100 milligrams per kilogram
D) 200 milligrams per kilogram
  • 47. In which decade did canned tuna become more plentiful in the United States?
A) Late 1940s
B) Early 1960s
C) Mid-1950s
D) Early 1930s
  • 48. What is the typical temperature range for bluefin tuna's core body?
A) 10–14 °C (50–57 °F)
B) 25–33 °C (77–91 °F)
C) 35–40 °C (95–104 °F)
D) 15–20 °C (59–68 °F)
  • 49. In which year did Japan complete the third generation of farm-hatched bluefin tuna?
A) 2005
B) 1999
C) 2007
D) 2010
  • 50. How much did the 881 lb tuna sell for due to its deteriorated condition?
A) Just under $5,000
B) $7,500
C) $10,000
D) $3,000
  • 51. What method do commercial fishing vessels use to attract tuna by exploiting their association with dolphins?
A) Pole and line
B) Using fish aggregation devices (FADs)
C) Searching for dolphin pods
D) Tuna ranching
  • 52. What type of camouflage does a tuna's body exhibit?
A) Disruptive coloration
B) Mimicry
C) Camouflage with patterns
D) Countershading
  • 53. Which organization compiled a detailed scientific report on global tuna stocks in 2009?
A) National Oceanic and Atmospheric Administration
B) United Nations Food and Agriculture Organization
C) World Wildlife Fund
D) International Seafood Sustainability Foundation (ISSF)
  • 54. What type of tuna is legally sold as 'white meat' in the United States?
A) Yellowfin
B) Albacore
C) Bluefin
D) Skipjack
  • 55. What is the term used for catching larger specimens of tuna that are known for putting up a fight?
A) Pole and line
B) Big game fishing
C) Fish aggregating device
D) Tuna ranching
  • 56. What does the Greek word 'thýnō' mean?
A) To swim slowly
B) To dive deep
C) To float gently
D) To rush, dart along
  • 57. Which country was the first to produce canned tuna in 1903?
A) United States
B) Australia
C) Spain
D) Japan
  • 58. Where are a tuna's pelvic fins located in relation to its pectoral fins?
A) Below the base of the pectoral fins.
B) At the same level as the pectoral fins.
C) Behind the pectoral fins.
D) Above the base of the pectoral fins.
  • 59. Which magazine awarded Clean Seas the second place for World's Best Invention in 2009?
A) Time
B) Scientific American
C) National Geographic
D) Nature
  • 60. In which year did Collette establish that Atlantic bluefin tuna and Pacific bluefin tuna are distinct species?
A) 2005
B) 2010
C) 1987
D) 1999
  • 61. How do tunas maintain endothermy?
A) Through a high metabolic rate that generates constant body heat
B) By maintaining temperature within a narrow range like mammals
C) Using external sources of warmth from the sun
D) By conserving heat generated through normal metabolism
  • 62. Which organization monitors government regulations for dolphin-friendly fishing methods?
A) WWF
B) NOAA
C) Oceana
D) Greenpeace
  • 63. What feature does the caudal peduncle have to aid in stabilization?
A) Two vertical fins
B) No special features for stabilization.
C) A single central fin
D) Three stabilizing horizontal keels on each side.
  • 64. What type of meat does the dark lateral blood meat from tuna often become?
A) Fish oil supplements
B) Pet food (cat or dog)
C) Human consumption
D) Animal feed for livestock
  • 65. What percentage of protein does canned light tuna in oil contain?
A) 29%
B) 35%
C) 15%
D) 20%
  • 66. How is the dorsal side of a tuna generally described?
A) Green
B) Metallic dark blue
C) Brown
D) Bright red
  • 67. What fishing gear is predominant for catching tuna?
A) Purse-seine nets
B) Longline
C) Trawls
D) Gillnets
  • 68. What shape is a tuna's tail described as?
A) Lunate (curved like a crescent moon)
B) Triangular
C) Square
D) Rectangular
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