Annex 11 - Code 11 - Marine Plants

  Performance outcomes                                            Acceptable outcomes                                          Response
     2. Tidal fish habitats, erosion control and beach            AO4.2 The extent of marine plants removed, damaged or        Complies with AO4.2
          replenishment (FHMOP 010), Department of Primary        destroyed does not exceed two metres along the waterway
          Industries and Fisheries, 2007                          frontage (width).                                            At Tewantin, there will be a temporary impact only on
     3.   Dredging, extraction and spoil disposal activities                                                                   macroalgae (as outlined above in PO1). The
          (FHMOP 004), Department of Primary Industries, 1998     AND
                                                                                                                               structures (oyster reef patches) will reduce or prevent
     4.   Departmental procedures for permit applications
                                                                                                                               erosion from boat wake around the boat ramp,
          assessment and approvals for insect pest control in
                                                                                                                               protecting the narrow fringe of mangrove habitat
          wetlands (FHMOP 003), Department of Primary
          Industries, 1996
                                                                                                                               along the foreshore and result in a net increase in
                                                                                                                               potential habitat for macroalgae as a result of the
     5. Fisheries guidelines for fish-friendly structures (FHG
          006), Department of Primary Industries and Fisheries,
                                                                                                                               placement of habitat structures on bare substrate
          2006.                                                                                                                around the existing rock patches. The area of
                                                                                                                               restoration substrate placement at Tewantin is within
                                                                                                                               a zone of past historic oyster reef growth and is
                                                                                                                               designed to minimise disturbance to marine plants
                                                                                                                               (including macroalgae) where practical.

                                                                                                                               Marine plants are protected by minimum distances in
                                                                                                                               all other restoration areas, thus no loss of higher
                                                                                                                               value marine plants along the waterway frontages is
                                                                                                                               expected.
                                                                  AO4.3 The long-term use and and operability of the           Complies with AO4.3.
                                                                  development will not result in ongoing adverse impacts or
                                                                  new adverse impacts or additional development. For           The long term performance and functionality of the
                                                                  example, a proposed jetty will not result in the need to     works has been considered. The works will require
                                                                  dredge navigation access to the development in the future.
                                                                                                                               monitoring and maintenance initially, in particular top-
                                                                                                                               up and reprofiling in response to expected settlement
                                                                                                                               to ensure the structure remains within a desirable
                                                                                                                               depth range for optimal settlement and growth of the
                                                                                                                               target species (rock oysters). The works include
                                                                                                                               subsequent placement of restoration modules as the
                                                                                                                               basis for oyster ecosystem formation at additional
                                                                                                                               sites as part of Phase 2 activities to further enhance
                                                                                                                               and expand available habitat (as resources allow).
                                                                                                                               Once established, the structures are expected to
                                                                                                                               require little maintenance, be self-sustaining and will
                                                                                                                               form part of the natural river habitat.

                                                                  AND one of the following acceptable outcomes apply           Not a pontoon or jetty development.



State Development Assessment Provisions – version 2.6
State code 11: Removal, destruction or damage of marine plants                                                                                                 Page 7 of 24