| Survey/Project Number: | 909 Total No. of Sites: 96 |
| Survey/Project Name: | Baited Underwater Video Surveys (BRUV) - Miscellaneous |
| Abstract: | This project holds datasets related to the Baited Underwater Video Survey methodology (BRUVS). Some of the major projects are listed below. SUSTAINING MARINE BIOLOGICAL HEALTH: Three marine biodiversity studies were conducted using a variety of techniques to identify and assess spatial variability in the distribution of key flora and fauna within the Northern and Yorke NRM region of South Australia. Habitats targeted included offshore soft sediments, rocky reef and seagrass over three depth classes (10, 20 and 30 metres). These surveys provide detailed quantitative information on the abundance and composition of species at each site and will form a benchmark for future monitoring programs across the region. SUSTAINING MARINE BIOLOGICAL HEALTH - SOUTH EAST NRM BOARD: Three Marine biodiversity studies were conducted using a variety of techniques to identify and assess spatial variability in the distribution of key flora and fauna within the South East NRM region of South Australia. Habitats targeted included offshore soft sediments, rocky reef and seagrass over three depth classes (10, 20 and 30 metres).These surveys provide detailed quantitative information on the abundance and composition of species at each site and will form a benchmark for future monitoring programs across the region. ESTABLISHING MARINE BASELINES - EYRE PENINSULA: Baited remote underwater video stations (BRUVS) were deployed in the Eyre Peninsula 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. SHALLOW SEAGRASS MONITORING METHODS - KANGAROO ISLAND: Baited remote underwater video stations (BRUVS) are becoming a widely used technique for monitoring reef fish, but with few studies having so far used BRUVS in seagrass meadows, it remains unclear how they perform within these habitats. This study was conducted as a Flinders University marine biology honours project with the Department of Environment, Water and Natural Resources in a supporting role. The aims of this study were to trial the use of BRUVS in shallow seagrass habitats, and to compare marine animals observed at Pelican Lagoon Aquatic Reserve to two broadly similar locations on Kangaroo Island that have had no protection. The seagrass component of this work is captured under SU917. Work was carried out in conjunction with Northern and Yorke NRM Board, Eyre Peninsula NRM BOARD, South East NRM Board, South Australian Research and Development Institute and Flinders University. |
| Start Date: | 01/11/2008 End Date: 01/01/2020 |
| Survey Type: | Other |
| Study Area Description: | SHAPE file to be supplied |
| Objectives | |||
| Vegetation: | *** No vegetation survey objectives recorded | ||
| Fauna: | *** No fauna survey objectives recorded | ||
| Methodology | |||
| Vegetation: | *** No vegetation methodology recorded | ||
| Fauna: | SARDI webpage: http://www.sardi.sa.gov. au/__data/assets/pdf_file/0013/125311/No_415_Marine_Biodiversity_of_the_Northern_and_Yorke_Peninsula_NRM_Region.pdf and http://www.sardi.sa.gov.au/__data/assets/pdf_file/0014/125312/No_416_Marine_Biodiversity_of_the_South_East_NRM_Region.pdf AND Methods available in: Whitmarsh, S.K., Fairweather, P.G., Brock, D.J. and Miller, D. (2014) Nektonic assemblages determined from baited underwater video in protected versus unprotected shallow seagrass meadows on Kangaroo Island, South Australia. Mar Ecol Prog Ser. 503: 205-218 AND 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: | Public Dataset |
| Project Basis: | Fauna : Fauna species/population Study (ie trapping records over time period for species study). NOTE:NON Std Svy methodology may have been used. |
| Information Authority: | Department for Environment and Heritage (BDBSA:S&C Div) |