Use Fig. 4.1 to state which fish species was most abundant in 2002.
Suggest which fish species had the most tightly controlled fishing quotas from 2002 to 2013. Support your choice with a reason.
Calculate the percentage rise in species N from 2002 to 2003. Show your working.
Overfishing may explain the fall in the population of species M between 2002 and 2003. State two other factors that might have led to this fall.
Suggest how controlling the size of the holes in fishing nets helps to reduce overfishing.
Describe and explain how methods other than fishing net hole size could help to prevent overfishing.
Cod is a fish species that almost became extinct in the Grand Banks because of overfishing. Suggest how the extinction of cod could affect the food web in Fig. 4.3.
Define sustainable development.