Research Report
1. Threats to the Great Barrier Reef \What are the threats to the Great Barrier Reef?\
In contemporary, the Great Barrier Reef has emerged numerous threats to the situation, in spite of the fact that it fetches billions of dollars into national economy from over two million tourists and over 700 tourism operators every year and supports more than 50 000 jobs. Furthermore , (“Great Barrier Reef,”2009)
2.1 Threats to the Great Barrier Reef of human factor
One of the part of the risk that human activities in here such as increasing number of tourists, pollution that are oil spills, shipping, burning fossil fuels and deforestation, growth the exports of sediments and minerals, economic values that have straight influenced the reef and its marine life recent. Water quality and run-off Sediments and nutrients, fertilisers, pesticides, toxic chemicals, sewage, rubbish, detergents, heavy metals and oil run into rivers and out to the Great Barrier Reef lagoon, where they can threaten plants and animals on the Reef
-------------------------------------------------
Pollution
Sediment, nutrient and pesticide pollution from catchment run-off is also affecting the health and resilience of the reef ecosystem. The amount of sediment flowing into the marine park has quadrupled over the past 150 years. This increase can largely be attributed to grazing and cropping expansion in the catchment, which has also resulted in the loss of native vegetation and wetlands.
Nutrient loads have also increased, encouraging algal blooms, which, in turn, provide food for larvae of the devastating crown-of-thorns starfish. In addition, nearly one-third of the reef is now exposed to pesticides.
-------------------------------------------------
Overfishing Not only is the reef subject to high levels of fishing pressure. Fishing practices, such as trawling for prawns, are permitted in over one-third of the marine park, resulting in untargeted fish capture (bycatch), and
In contemporary, the Great Barrier Reef has emerged numerous threats to the situation, in spite of the fact that it fetches billions of dollars into national economy from over two million tourists and over 700 tourism operators every year and supports more than 50 000 jobs. Furthermore , (“Great Barrier Reef,”2009)
2.1 Threats to the Great Barrier Reef of human factor
One of the part of the risk that human activities in here such as increasing number of tourists, pollution that are oil spills, shipping, burning fossil fuels and deforestation, growth the exports of sediments and minerals, economic values that have straight influenced the reef and its marine life recent. Water quality and run-off Sediments and nutrients, fertilisers, pesticides, toxic chemicals, sewage, rubbish, detergents, heavy metals and oil run into rivers and out to the Great Barrier Reef lagoon, where they can threaten plants and animals on the Reef
-------------------------------------------------
Pollution
Sediment, nutrient and pesticide pollution from catchment run-off is also affecting the health and resilience of the reef ecosystem. The amount of sediment flowing into the marine park has quadrupled over the past 150 years. This increase can largely be attributed to grazing and cropping expansion in the catchment, which has also resulted in the loss of native vegetation and wetlands.
Nutrient loads have also increased, encouraging algal blooms, which, in turn, provide food for larvae of the devastating crown-of-thorns starfish. In addition, nearly one-third of the reef is now exposed to pesticides.
-------------------------------------------------
Overfishing Not only is the reef subject to high levels of fishing pressure. Fishing practices, such as trawling for prawns, are permitted in over one-third of the marine park, resulting in untargeted fish capture (bycatch), and