The chart illustrates the population trends of four distinct fish species—Atlantic Cod, Haddock, Yellowfin Tuna, and Swordfish—over a span from 1982 to 2007.
Overall, Atlantic Cod exhibited a significant decline during the observed period, while Haddock’s population fluctuated consistently. In contrast, Yellowfin Tuna maintained relative stability, and Swordfish experienced a slight growth towards the end of the period.
In 1982, Atlantic Cod was recorded at just below 200,000, while Haddock and Yellowfin Tuna began with populations around 0.5 million. Swordfish, on the other hand, was almost negligible at that time. A notable fluctuation occurred from 1987 to 1992, during which Atlantic Cod peaked at approximately 2.5 million. Conversely, Haddock’s population declined to about 0.3 million, and Yellowfin Tuna remained stable around 0.5 million. Despite Swordfish’s initially low count, it registered a marginal increase during this timeframe.
From 1992 to 2002, the trends shifted markedly; Atlantic Cod’s numbers fell steadily to approximately 0.5 million. Haddock fluctuated around 0.2 million, while Yellowfin Tuna maintained its relatively stable population near 0.5 million. Conversely, Swordfish saw a minor rise, slightly exceeding its previous figures. By 2007, Atlantic Cod had diminished further to just below 0.5 million, with Haddock continuing its fluctuations around 0.2 million. Yellowfin Tuna sustained stability, and Swordfish exhibited a slight upturn, indicating gradual recovery.