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human activity and the destruction of the planet

The impact of bushfires on coastal and marine environments

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This is a report, published by the Australian Marine Conservation Society (AMCS).

Bushfires Impacts on our oceans report Australian Marine Conservation Society

It can be found at:

Bushfire-Report_February-2020_Final-full-for-web-1.pdf

Bascially, what the report outlines is that the full effects of the summer of disasters will take months to materialise. The report shed light on the dangers to guard against in the critical months ahead.

  • Sediment slugs harming habitats and wildlife: Nutrients, ash and debris released by bushfires can damage habitats and form into sediment slugs following heavy rains – which slowly work their way to our oceans, harming aquatic life along the way.
  • Contamination: Metals and other contaminants released by bushfires in sediment, smoke and ash can change the physiology and behaviours of marine animals and work their way into the food chain.
  • Algal blooms killing fish: Harmful algal blooms caused by nutrient enrichment can kill fish and contaminate oyster farms, forcing their closure;
  • Damage to protective vegetation: Debris, sediment and ash washed into seagrass meadows, mangrove forests and reefs could further burden these already pressured environments.

Critically, the research report has uncovered alarming gaps in the monitoring of waterways and a lack of infrastructure and resources for responding to the threats. Unless these gaps are addressed urgently, many species face an uncertain future in the face of intensifying bushfire seasons.

The report recommends:

  • Monitoring of waterways: a comprehensive and integrated monitoring program for coastal and marine environments, that builds understanding of bushfire impacts and informs responses.
  • Urgent rehabilitation funding: Increased support will be vital for programs targeting the rehabilitation of the most vulnerable catchments and restoration of damaged coastal environments.
  • Rapidly cut carbon emissions: leaders must deal with the root cause of intensifying bushfires – rising temperatures – including swift and effective action to cut carbon emissions and transition to renewable energy sources.


 

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