The past two centuries of history and loss of shellfish reefs in South-east Queensland have been chronicled in a scientific paper co-authored by Dr Ben Diggles, a member of The Royal Society Of Queensland. View pdf file.
A downloadable Data Test – Oysters based on experiments aimed at restoring shellfish reefs has been prepared for use in classes in biology and marine science under Queensland’s 2019 senior secondary syllabus. The module has been prepared by Mr Michael Howe, Maths/Science/Marine Teacher at Bribie Island State High School. The original data sets were included in a scientific paper by Royal Society of Queensland Member and marine scientist Dr Ben Diggles entitled “Annual pattern of settlement of Sydney Rock oyster spat in Pumicestone Passage“ . Supplementary data and a spreadsheet with spatfall field data referred to in the article and charts with data on Leaf oysters and a Time series are also available.
Subsequently, in September 2019, Dr Diggles provided an Invertebrate Report with the following explanation:
“I attach a copy of the 9-month invertebrate report. Not too much happening by way of growth or recruitment of shellfish on the reefs in the middle of winter, except for some honeycomb oyster settlement. But the spat settlement data comparing the cage reef vs the patch reef from the 2017 deployment are telling, as they show that anchor damage to the patch reefs lowers their profile and reduces their effectiveness for attracting spat.
“Healthy Land and Water have commissioned some underwater drone footage of the trial reefs which is available at https://youtu.be/N1ZKITKE7SA. Again, note the anchor damage to the smaller patch reef deployed in 2017. Fortunately the cages, the biodegradable BESE reefs and the larger patch reefs deployed in 2018, while still vulnerable to anchor damage, are proving to be more robust, the latter probably due to their larger size and the larger besser brick fence modules surrounding them.”
For a background instructional video on why all this work is being done in Australia, refer to the video at https://youtu.be/Dn8dZrWK7fM, available at the website https://www.shellfishrestoration.org.au/ . This is the national website allied with the local Moreton Bay site http://restorepumicestonepassage.org/ .