Photo AI
Examine the graph, which shows that fish stocks have become depleted over time in part of the Irish Sea - Junior Cycle Geography - Question C - 2005
Question C
Examine the graph, which shows that fish stocks have become depleted over time in part of the Irish Sea. Answer the questions which follow. (i) Calculate the decrea... show full transcript
Worked Solution & Example Answer:Examine the graph, which shows that fish stocks have become depleted over time in part of the Irish Sea - Junior Cycle Geography - Question C - 2005
Step 1
Calculate the decrease in fish stocks shown between 1960 and 1990.
Answer
The graph indicates that in 1960, the fish stocks were approximately 50,000 tonnes, and by 1990, they had decreased to about 16,000 tonnes. To calculate the decrease:
Thus, the decrease in fish stocks between 1960 and 1990 is approximately 34,000 tonnes.
Step 2
Describe two possible reasons for the depletion in fish stocks in the seas around Ireland.
Answer
-
Advancements in Fishing Technology: In the 1960s and 70s, improvements in fishing equipment and the size of fishing vessels resulted in increased catching capacity. This advancement led to overfishing, as larger catches were harvested more effectively, ultimately diminishing fish populations.
-
Increase in Foreign Fishing Fleet: During the same period, there was an increase in the number of foreign factory ships operating in Irish waters. These ships often had significant fishing capacities and were able to exploit the fish stocks extensively, contributing to the depletion of local fish populations.