A species of seabird feeds at sea and breeds once every two years. Some adult birds drown after becoming trapped in fishing nets.

Scientists tested different conservation actions in four similar coastal areas for six years.

Conservation action	Breeding pairs at the start	Breeding pairs after six years
no additional action	121	76
reduce the fishing quota	117	101
breed birds in captivity and release them	123	130
ban fishing with nets in the feeding area	119	147

Using the data, suggest which conservation action should be used in all four coastal areas. Explain your answer.

A species of seabird feeds at sea and breeds once every two years. Some adult birds drown after becoming trapped in fishing nets.

Scientists tested different conservation actions in four similar coastal areas for six years.

Conservation action	Breeding pairs at the start	Breeding pairs after six years
no additional action	121	76
reduce the fishing quota	117	101
breed birds in captivity and release them	123	130
ban fishing with nets in the feeding area	119	147

Using the data, suggest which conservation action should be used in all four coastal areas. Explain your answer.

6.1 Monitoring and maintaining the environment

6.1 Monitoring and maintaining the environment Questions