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The Ultimate Big Catfish Quiz
by Staff
Catfish are mostly freshwater inhabitants and are found on almost every continent. Their size can vary from a couple of inches to more than eight feet long, the size of the largest Mekong giant catfish ever caught. Take this quiz and learn more about big catfish.

How many species of catfish exist in the world?

  • 4,900
  • 3,900
  • 2,900

Where do most catfish live?

  • freshwater
  • saltwater
  • either of the above

Where in the water do catfish tend to dwell?

  • near the surface
  • at medium depths
  • on the bottom

Which of the following fish have no scales?

  • sawsharks
  • catfish
  • seahorses

What constitutes the outer covering of a catfish?

  • scales
  • skin
  • smooth or hard bony flesh

How did the catfish get its name?

  • from its barbels
  • from its bony flesh
  • from its skin

What is the function of the catfish's barbels?

  • They help the fish to locate the bottom of the river.
  • They help the fish to hear.
  • They help the fish to find food.

What is the name of the biggest catfish ever caught?

  • Wels catfish
  • flathead catfish

How big was the largest catfish ever caught?

  • 8 feet 8 inches
  • 8 feet 9 inches
  • 8 feet 10 inches

What is the weight of the heaviest Mekong giant catfish?

  • 293 kilograms
  • 393 kilograms
  • 493 kilograms

Where was the largest catfish caught?

  • India
  • Thailand
  • China

When was the biggest Mekong giant catfish caught?

  • 2005
  • 2004
  • 2003

How long is the Mekong River?

  • 6,800 kilometers
  • 5,800 kilometers
  • 4,800 kilometers

What is the total land area covered by the Mekong river basin?

  • 695,000 square kilometers
  • 795,000 square kilometers
  • 895,000 square kilometers

The Mekong River basin is shared by ____ countries.

  • four
  • five
  • six

What is the average life span of Mekong giant catfish in the wild?

  • more than 60 years
  • more than 50 years
  • more than 40 years

Full-grown adult Mekong giant catfish lack:

  • barbels
  • teeth
  • both of the above

Which catfish turn cannibal?

  • newly hatched fry
  • fully grown catfish
  • mature catfish

During the past century, the adult Mekong giant catfish population has declined by:

  • 75 percent
  • 85 percent
  • 95 percent

Why are Mekong giant catfish vanishing?

  • overharvesting
  • habitat loss/degradation
  • both of the above