Open Access Repository

Australian shellfish ecosystems: past distribution, current status and future direction

Downloads

Downloads per month over past year

Gillies, CL, McLeod, IM, Alleway, HK, Cook, P, Crawford, C ORCID: 0000-0002-0705-2378, Creighton, C, Diggles, B, Ford, J, Hamer, P, Heller-Wagner, G, Lebrault, E, Le Port, A, Russell, K, Sheaves, M and Warnock, B 2018 , 'Australian shellfish ecosystems: past distribution, current status and future direction' , PLoS ONE, vol. 13, no. 2 , pp. 1-23 , doi: 10.1371/journal.pone.0190914.

[img]
Preview
PDF
journal...pdf | Download (23MB)

| Preview

Abstract

We review the status of marine shellfish ecosystems formed primarily by bivalves in Australia, including: identifying ecosystem-forming species, assessing their historical and current extent, causes for decline and past and present management. Fourteen species of bivalves were identified as developing complex, three-dimensional reef or bed ecosystems in intertidal and subtidal areas across tropical, subtropical and temperate Australia. A dramatic decline in the extent and condition of Australia’s two most common shellfish ecosystems, developed by Saccostrea glomerata and Ostrea angasi oysters, occurred during the mid-1800s to early 1900s in concurrence with extensive harvesting for food and lime production, ecosystem modification, disease outbreaks and a decline in water quality. Out of 118 historical locations containing O. angasi-developed ecosystems, only one location still contains the ecosystem whilst only six locations are known to still contain S. glomerata-developed ecosystems out of 60 historical locations. Ecosystems developed by the introduced oyster Crasostrea gigas are likely to be increasing in extent, whilst data on the remaining 11 ecosystem-forming species are limited, preventing a detailed assessment of their current ecosystem-forming status. Our analysis identifies that current knowledge on extent, physical characteristics, biodiversity and ecosystem services of Australian shellfish ecosystems is extremely limited. Despite the limited information on shellfish ecosystems, a number of restoration projects have recently been initiated across Australia and we propose a number of existing government policies and conservation mechanisms, if enacted, would readily serve to support the future conservation and recovery of Australia’s shellfish ecosystems.

Item Type: Article
Authors/Creators:Gillies, CL and McLeod, IM and Alleway, HK and Cook, P and Crawford, C and Creighton, C and Diggles, B and Ford, J and Hamer, P and Heller-Wagner, G and Lebrault, E and Le Port, A and Russell, K and Sheaves, M and Warnock, B
Keywords: oyster reef, shellfish ecosystem, habitat restoration, marine conservation
Journal or Publication Title: PLoS ONE
Publisher: Public Library of Science
ISSN: 1932-6203
DOI / ID Number: 10.1371/journal.pone.0190914
Copyright Information:

Copyright 2018 Gillies et al. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

Related URLs:
Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page
TOP