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Great Barrier Reef Marine Park Authority (GBRMPA)

GBRWHA Monitoring Program: River mouth water quality monitoring

· Jun 7, 2013 · Leave a Comment

River mouth water quality monitoring will assess change over time in concentrations and loads of the major land sourced pollutants that have the potential to adversely affect coral reef and seagrass ecosystems. This monitoring will provide the primary indicator of the delivery of pollutants to the waters of the Great Barrier Reef, and consequently of the effectiveness of measures aimed at reducing that delivery. Parameters measured will include nutrient species, suspended solids and pesticides. Monitoring will consist of a conventional grab sampling program, as well as the use of innovative water quality sampling techniques at the mouths of the major rivers flowing into the Great Barrier Reef World Heritage Area (e.g. Fitzroy, Burdekin, Herbert, and Johnstone Rivers). Sampling will occur during both the wet and dry seasons. Outcomes: Information about current status and long-term (10 year) trends in water quality and marine ecosystem status in the GBRWHA.

GBRWHA Monitoring Program: Marine Water Quality

· Jun 7, 2013 · Leave a Comment

Water quality monitoring will be carried out in the nearshore waters of the Great Barrier Reef to assess change over time in concentrations of key water quality indicators. Monitoring of marine water quality is required to establish the extent of improvement in lagoon water quality as a consequence of any reductions in delivery of pollutants to the marine environment. This monitoring will include the measurement of chlorophyll as a surrogate nutrient indicator, as well as the measurement of water turbidity and pesticide and pharmaceutically active compound concentrations at key inshore reef sites. Sampling methods will include state of the art water quality sensors with long-term data logging capacity to minimise fieldwork in the marine environment. Sampling of marine sediments will also be carried where necessary to assess long- term change in the accumulation of pesticides in the seafloor if these types of pollutants are being sequestered. Outcomes: Information about current status and long-term (10 year) trends in water quality and marine ecosystem status in the GBRWHA

GBRWHA Monitoring Program: Pollutatnt Bioaccumulation Monitoring

· Jun 6, 2013 · Leave a Comment

Organisms exposed to pollutants often develop subtle cellular differences and may accumulate certain toxicants. The assessment of body burdens of pollutants in key ecosystem indicator organisms can provide a sensitive, early warning of the presence of pollutants. Extensive surveys of inshore Queensland crab pollutant concentrations have demonstrated this type of organism as a useful monitoring vehicle to use to assess changes in pesticide concentrations in nearshore marine biota. This program will be augmented by new methodologies as they become routinely available. Outcomes: Information about current status and long-term (10 year) trends in water quality and marine ecosystem status in the GBRWHA.

GBRWHA Monitoring Program: Inshore Reef Monitoring

· Jun 6, 2013 · Leave a Comment

Monitoring of the inshore coral reefs most at risk from land-based sources of pollutants will be carried out to ensure that any change in their status is identified. Monitoring sites will be associated with the river mouth and inshore marine water quality-monitoring programs to enable correlation with concurrently collected water quality information. Monitoring will include the use of traditional video-transect monitoring, as well as the assessment of coral recruitment and population demography. Outcomes: Information about current status and long-term (10 year) trends in water quality and marine ecosystem status in the GBRWHA.

GBRWHA Monitoring Program: Intertidal Seagrass Monitoring

· May 22, 2013 · Leave a Comment

Monitoring of the intertidal seagrass beds will be carried out to ensure that any change in their status is identified.

Monitoring sites will be associated with the river mouth and inshore marine water quality-monitoring programs to enable correlation with concurrently collected water quality information. Outcomes: Information about current status and long-term (10 year) trends in water quality and marine ecosystem status in the GBRWHA.

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