The line graph illustrates the number of four types of fish worldwide, namely Atlantic cod, haddock, yellowfin tuna, and swordfish from 1982 to 2007. Overall, the populations of Atlantic cod and yellowfin tuna declined significantly, while haddock and swordfish remained relatively stable throughout the period.
The Atlantic cod stood at around 2, 25000 fish in 1982, far more than any other types of fish. Although its numbers fell sharply to approximately 1, 50000 in 1992, they stabilised steadily afterward finished at nearly 1, 40, 000 fish by the end of the period.
By contrast, haddock fish started at about 80, 000 fish in 1982 and remained unchanged throughout the period. The numbers of yellowfin tuna remained relatively stable, fluctuating between 2, 00000 and 1, 00, 000 across the 20 years. On the other hand, yellowfin tuna experienced growth in the number of fish, increasing from just above 20 000 in 1992, surpassing all activites.
Lastly sword world fish started with zero in 1982, but their popularity remained unchanged by the final year.