Tuna is ready to be
sold at a seafood and
fish market in Tokyo,
Japan. Skipjack tuna
live in cool and tropical
seas and are smaller
than bluefin and
yellowfin tuna.
Sea Animals in Danger
Fishermen aim to catch the biggest fish because they
sell for the most money. This means that the biggest
fish are usually the first to become endangered. Big fish
have an important part to play at the top of many food
chains and food webs. Their loss affects fish and sea
animals below them in the chain.
Tuna
Tuna are found in oceans
around the world and are one
of the world’s most popular
seafoods. They are so popular
that stocks of several types of
tuna, particularly yellowfin,
bluefin, and bigeye tuna, are
now in danger of collapse
almost everywhere. Skipjack
tuna are still
sustainable
, but
only when they are caught on
fishing lines, because nets trap
endangered species of tuna
along with the skipjack.
14
How are big fish becoming endangered?
