Incidental photographs of field activities were taken by field staff during research voyage SS 03/2005 on the RV Southern Surveyor. Subjects include the research vessel, prawn trawls, epibenthic sleds, CTD casts, box cores and life on the ship.

The aims of this project are: (1) to identify and simulate key physical factors that have significant impacts on ecological processes on shelf and coastal areas of southwestern Western Australia (WA); and (2) to develop physical, ecological, and risk assessment models that can be used to assess impacts of multiple human use on coastal and shelf environments. The project consists of five main components: analysis of large scale climate forcing, development and application of regional and coastal circulation models, development of integrated biogeochemical/ecological models, development of coastal impact models, and risk assessment. This project will link existing field data, field observations from other SRFME projects, and output from new and existing models, with management objectives and needs defined by Western Australian stakeholders. Specific models to be developed include regional and coastal oceanographic models, biogeochemical / ecological models that links physical and ecological processes, and risk assessment models that link these models to human use of the marine environment. The project intends to build on methods and models already developed and/or used by other CMR projects such as the NWSJEMS and LWRDDC projects. These models will be adapted and extended to allow assessment of impacts of multiple use and natural forcing on nutrient cycling, production and habitat quality on shelf and coastal areas in southwestern WA. These tools will range from process-based simulation models to semi-empirical models, with a focus on making efficient use of existing data, and incorporating new data from large-scale observations such as acoustic and satellite data. The main deliverables of the project include analysis of large scale climate forcing, development and application of regional and coastal scale oceanographic, integrated biogeochemical/ecological, and coastal impact models and risk assessment methods.

This project has been designed to provide the Western Australian Government and its agencies with improved understanding of the coastal marine environment so that its decision making with regard to development in this zone is environmentally credible and sustainable. The project will deliver this result by the following sequence of research. First, existing data will be appraised in light of a simple system model for inshore coastal waters. This rudimentary understanding will be used to design environmental surveys for three representative coastal systems (chosen in consultation with WA departments and agencies). Whereupon, baseline data will be obtained on biodiversity, biogeochemical processes and environmental quality in these waterways. With this information, the research will then move on to consider the affects of selected stressors (localised sources and diffuse inputs) on the above ecological characteristics, and the potential for irreversible alteration. Where necessary, focussed investigations in the field or laboratory will be used to resolve key mechanisms and also the scale of response. Important outcomes for the project will be the development of validated environmental indicators for the use of coastal managers, and also other resources for them to better understand the complex interactions and inter-relations in coastal marine ecosystems (e.g. via conceptual models). This project will also work with other SRFME projects to improve capacity for prediction and scenario testing in environmental decision making via models and other tools.