Business structure and costs for Southern Rock Lobster fisheries in Tasmania including fixed (vessels, infrastructure) and variable (bait, fuel, ports) costs.

Samples of Temperature and Salinity from a CTD profile have been measured at Station 3 in the Derwent Estuary between August 2012 and January 2013.

Samples of Temperature and Salinity from a CTD profile have been measured at Station 2 in the Derwent Estuary between August 2012 and January 2013.

Samples of Temperature and Salinity from a CTD profile have been measured at Station1 in the Derwent Estuary between August 2012 and January 2013.

Samples of Temperature and Salinity from a CTD profile have been measured at 6 Stations in the Derwent Estuary between August 2012 and January 2013.

Samples of Temperature and Salinity from a CTD profile have been measured at Station 5 in the Derwent Estuary between August 2012 and January 2013.

Samples of Temperature and Salinity from a CTD profile have been measured at Station 9 in the Derwent Estuary between August 2012 and January 2013.

Samples of Temperature and Salinity from a CTD profile have been measured at Station 6 in the Derwent Estuary between August 2012 and January 2013.

Underwater video technology was used to observe marine mammal interactions (seals, in particular Australian fur seals) within midwater trawl nets. A camera system was placed inside the trawl net in the vicinity of a Seal Excluder Device, designed to prevent megafauna from entering the codend of the net and provide an escape point. Digital video data was described according to a range of operational, catch and interaction fields, and made time-specific to each trawl shot. Data is linked to commercial catch and effort data providing operational, environmental and catch information.

This study aims to undertake a comprehensive survey of the benthic fauna of Port Davey – Bathurst Harbour and adjoining Payne Bay, James Kelly Basin and Hannant Inlet. This will provide important information on the composition and structure of benthic faunal communities and the distribution of any introduced species amongst the benthos. In February/ April 2007 invertebrate faunal communities were sampled at 70 locations throughout the system – with the greatest intensity of sites located within Port Davey, Bathurst Channel and Bathurst Harbour.