Future Oceans: a Sea of Hope or Despair: Callum Roberts
The negative impact human beings have had on marine life in the ocean is widespread and far reaching
0 minutes – Introduction
2 minutes – Lecture begins
5 minutes – Examining the history of using marine resources
12 minutes – The future picture of fish stocks
20 minutes – The impact of over fishing and unused by catch
25 minutes – Other causes of marine habitat decline
49 minutes – The ‘New Deal’ for oceans
The negative impact human beings have had on marine life in the ocean is widespread and far reaching into history and, without considered intervention in the form of increased protection or a review of fishing practices, will continue to blight marine ecosystems into the future. Other causes of marine habitat destruction such as climate change and pollution require a different approach and more broadly, we need to view the oceans as a global resource for which we are all responsible.
AQA A Level
Sea level change – eustatic and isostatic change.
Human activity and its impact on the biome.
The management of fragile environments (conservation versus exploitation): two contrasting case studies of recent (within the last 30 years) management schemes in fragile environments should be undertaken.
Edexcel A Level
Ecosystems have value and importance in terms of biodiversity and ecological resources which should be illustrated with reference to a named global ecosystem (economic, cultural and environmental), in terms of the goods and services that they provide to different groups.
Global factors threaten biodiversity (from climate change and rising sea levels for instance) as well as local factors, which are often related to economic development and direct ecosystem exploitation, as well as attitudes to the value of biodiversity.
The role of different players (individuals, interest groups, international organisations) is important in managing biodiversity, as is the extent to which conflict between players can be resolved, if it can be resolved at all.
There is a spectrum of strategies and policies for managing biodiversity, each with advantages and disadvantages for different interest groups; these should be applied globally and to named examples of management.
OCR A Level
How change occurs in an ecosystem as a result of the interaction of physical and human factors.
WJEC A Level
The Blue Revolution.
Critically assess attitudes towards the sustainability of food supplies.
AQA B GCSE
Use an example(s) to describe and explain the reasons for the growth of human and economic activities in coastal areas.
Reasons for rising sea level.
Edexcel B GCSE
Examine two contrasting examples of biosphere conservation, including one global-scale approach and one national or local approach.
Examine how degradation of the biosphere takes place by indirect means, including the impact of climate change on tropical rainforests.
Examine the challenges of producing sustainable outcomes in economic, social and environmental terms and the possible tensions.
Investigate the global pattern of either coral reefs or mangrove swamps, and how it has changed in the past 50 years.
Examine the global threats to this marine eco-system to explain its changed distribution through human activities including overfishing, pollution and waste disposal from both land and ocean sources, tourism and coastal development.
Examine how these processes can be disrupted through overfishing, eutrophication and siltation, as well as the impacts of climate change, including bleaching and species migration.
Investigate the growing local pressures on a named and located marine eco-system.
Examine the conflicting views about how the chosen eco-system should be managed.
Compare two located case studies of marine management, e.g. sustainable management in St Lucia, management of fish stocks in the North Sea, marine reserves to establish the tensions between achieving economic and environmental sustainability.
Coastal ecosystems (coral reefs, mangroves, sand dunes, salt marshes) and their biodiversity.
Coastal ecosystems are of value to people, but are threatened by tourism and other developments (industrialisation, agricultural practices, deforestation)
WJEC A GCSE
How is the global distribution of large scale ecosystems influenced by climate?
In what ways do people use ecosystems?
How can ecosystems be managed sustainably?
What is the evidence that ecosystems are being used unsustainably?
WJEC B GCSE
The economic and environmental benefits provided by ecosystems at small and international scales.
How human activity affects ecosystem processes.
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