WAMSI Node 4.2.2a - Establishment of indicators for ecosystem based fisheries management - Benthic assemblages

There were four key objectives for WAMSI Node 4.2.2a: (1) determination of indicator regions; (2) development of monitoring strategies; (3) Implement a long term monitoring program (LTMP); and (4) provision of an assessment of expanding the LTMP to other areas.

Indicator regions were confirmed as the Abrolhos Islands, Rottnest Island, and the Cape Naturaliste region. A synthesis of historical data sets for primary producers, sessile and mobile invertebrates and finfish were collected from the indicators region and an extensive review of potential indicators for finfish was also conducted (available for download from this metadata record).

A program to monitor the health and biodiversity of subtidal reefs was established in April 2010 and April 2011. An Automated Underwater Vehicle (AUV) was deployed at the Abrolhos Islands, Jurien Bay and Rottnest Island to capture valuable information on the cover and abundance of benthic invertebrates and macroalgae. Replicate grids (25 x 25 m area of seabed) were surveyed. Exact co-ordinates are given below.