BDBSA Project Metadata Detail

Survey/Project Number: 913          Total No. of Sites: 0
Survey/Project Name: merged with 909
Abstract: PROJECT DECOMISSIONED: Baited Underwater Video Surveys (BRUVS) were deployed in Eyre Peninsula, South Australia embayments of False Bay, Franklin Harbour, Coffin Bay, Venus Bay and Baird Bay, to assess the abundance and diversity of marine fishes within various benthic habitat type from which a baseline could be derived.
 
Start Date: 21/06/2009      End Date: 01/01/2020
Survey Type: Fauna only
   
Study Area Description: Eyre Peninsula. Shape file to be supplied.
Objectives
         Vegetation: *** No vegetation survey objectives recorded
         Fauna: Refer to Abstract.
Methodology
         Vegetation: *** No vegetation methodology recorded
         Fauna: A number of embayments were selected to conduct the surveys; False Bay, Franklin Harbour, Coffin Bay, Venus Bay and Baird Bay. Survey sites were selected using ArcMap to identify the type and extent of benthic habitats mapped in each bay and their respective depth classes. Due to poor weather and water clarity no sampling was done at Franklin Harbour and Baird Bay. The BRUVS used for this survey consist of a video camera mounted in a waterproof housing and attached to a steel frame and is connected to the water surface using a rope and buoy system. A bait bag filled with 800 grams of mashed pilchards is suspended 1 metre in front of the camera and serves as an attractant. Three BRUVS were deployed at each site, separated by at least 200 metres to reduce the possible confounding effects of bait plume dispersal. Each BRUVS is left to record for at least 60 minutes on the sea floor before being retrieved and redeployed at a different site. Video footage was analysed using SeaGIS EventMeasure software to record species presence / absence, and abundance data. The largest number of individual fish (for each species/taxa) observed in a single frame within the duration of a single sample recording is given as a MaxN value on which statistical analyses can be performed. This method reduces the chance of the same fish being counted twice. Habitat type and depth was also recorded at all sites.

Data Distribution Rules: Sensitive Dataset: Written permission required from Information Authority
Project Basis: Fauna : Baseline Survey of flora and/or fauna - Standard Biol Survey of SA survey methodology not used.
Information Authority: Department for Environment and Heritage (BDBSA:S&C Div) - Science Monitoring Knowledge