Annex 11 - Code 11 - Marine Plants

  Performance outcomes                                  Acceptable outcomes                    Response
                                                                                               observed on and around the existing rocky reef and
                                                                                               rubble areas, with some sections of reef having a high
                                                                                               coverage of fine sediment.

                                                                                               ESP also confirmed that given the speed at which
                                                                                               Padina can colonise hard surfaces (dead oyster shell)
                                                                                               elsewhere in the estuary, it is anticipated that
                                                                                               supplementary habitat provided as part of the
                                                                                               proposed restoration project would be colonised
                                                                                               rapidly within 1 year of deployment, and that coverage
                                                                                               is expected to be similar to the current condition
                                                                                               within 2 to 3 years post deployment, particularly in
                                                                                               sections that remain subtidal and not covered by fine
                                                                                               silt.

                                                                                               Mangroves and seagrasses are not within the
                                                                                               footprint of this project and will not be impacted at any
                                                                                               restoration site.

                                                                                               Alternatives to the oyster ecosystem restoration
                                                                                               methodology proposed are evaluated in the Project
                                                                                               Restoration Plan, Section 6.3. Impact minimisation
  PO2 Only those aspects of a development that          No acceptable outcome is prescribed.   Complies with PO2
  have a functional requirement to be located on
  tidal land create the requirement to remove,                                                 The works are intended to restore intertidal and
  destroy or damage marine plants. Ancillary                                                   subtidal rock oyster ecosystems throughout the
                                                                                               Noosa River estuary. Due to the nature of the works
  elements (for example: car and trailer parks, rest
                                                                                               and the growth of oysters typically below high tide, the
  rooms, offices) occur outside of tidal land.                                                 works are required to be on tidal land.

  Note: Tidal land within the development site                                                 The restoration substrates have been designed by the
  should be accurately identified on plans provided                                            project’s contracted coastal engineers, Integrated
  with the application, together with the location of                                          Coastal Management (ICM), to be the most suitable
  highest astronomical tide, mean high water                                                   designs and configurations for each site.
  spring and mean low water spring tide heights.
                                                                                               The module designs provide design tolerances, which
  The extent, location, species and condition of                                               are then applied to the bathymetric character of each
                                                                                               individual restoration site. The substrate may be laid
  marine plants that are proposed for removal,
                                                                                               as fingers, set perpendicular to the shore (concept
  damage or destruction and retained have been                                                 layout 1), or as large or small patches set parallel

State Development Assessment Provisions – version 2.6
State code 11: Removal, destruction or damage of marine plants                                                                 Page 3 of 24