Candidates should be able to:
1 outline the importance of different marine ecosystems to humans
(a) recreation and tourism
(b) source of wood/building material
(c) coastal protection
(d) food supply
(e) medicines
(f) fisheries
(g) nursery areas for juvenile organisms of commercially and ecologically important species
(h) medicinal plants
2 outline the impacts of human activities on marine ecosystems
(a) recreational activities – noise and light pollution, litter and plastics, trampling of organisms, collection and removal of organisms as souvenirs
(b) tourist boats and diving
(c) land reclamation for resorts
(d) building of infrastructure
(e) removal of resources – dredging for sand and mud for building, logging of mangrove trees
(f) blast fishing
(g) shrimp farms
(h) oil spills
3explain that populations of some marine species are declining and may become extinct and these species are referred to as endangered species
4 describe a sustainable resource or activity as one that we can continue to use or carry out at the current rate, without causing damage to the environment, and without the resource running out
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