2022-05-16 GC Agenda - Item 7 - Attachment 2 - Noosa Oyster Ecosystem Restoration Project - Project Restoration Plan

                 Please note, that in line with the ESP report, no impact to mangroves or seagrass as a result of the
                 works is expected at any of the proposed restoration sites.


                 3.1 Tewantin




                 The Tewantin Restoration Site is located along the southern shoreline of the Noosa River. The site lays
                 adjacent to Tewantin Park, more than 100m upstream of the Tewantin boat ramp.

                 A port channel marker is located seaward at the downstream end of the site. A Telstra-owned
                 submarine telecommunications cable bisects the site at the upstream end. The cable is relatively
                 accurately mapped but its exact position will be confirmed and mapped, by geographic survey, prior to
                 construction work commencing. Exclusions are imposed for the telecommunications cable. A small
                 beach intersects the fringe and has been excluded from the restoration footprint.

                 A narrow strip (5m wide canopy) of cotton wood (Hibiscus tiliaceus), interspersed with grey mangroves
                 (Avicennia marina) and river mangroves (Aegiceras corniculatum) occupy the shoreline fringe.
                 Mangroves are in moderate condition, growing on rock and gravel on an erosion prone bank. A public
                 walkway lies landwards of the fringing mangroves.

                 The proposed oyster reef patches would be placed primarily on bare sand and gravel (with dead oyster
                 shell) and on rocky rubble adjacent to marine plants in the intertidal zone. The patches will cover a total
                 area of 1326 m2 and be at least 10 m from seagrass and 2 m away from mangroves (including
                 pneumatophores) to prevent any direct damage to those marine plant assemblages.

                 As per Annex 1, ESP has confirmed that the oyster reef patches will be placed primarily on bare gravel
                 with dead oyster shell which makes up 42 percent of the 1326 m2 area covered by restoration patches.
                                                                                                                         23




Document Set ID: 21802641
Version: 1, Version Date: 31/01/2022