The rise and fall of oyster cultivation in the highly urbanized Georges River estuary, Sydney, Australia: A review of lessons learned

Reid, David; Bone, Elisa

doi:10.1016/j.rsma.2020.101246

Cited by 3 publications

(3 citation statements)

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“…Oysters were also popular with European settlers and were ultimately exploited to near extinction. The demise of wild oyster populations in Gamay and the Georges River then stimulated the emergence of an iconic and valuable Sydney rock oyster aquaculture industry (Reid and Bone 2020). Oyster aquaculture production in the Georges River and Gamay peaked in the 1970s; however, in the following decade disease and pollution caused production to significantly decline (Reid and Bone 2020).…”

Section: Oyster Reefsmentioning

confidence: 99%

“…The demise of wild oyster populations in Gamay and the Georges River then stimulated the emergence of an iconic and valuable Sydney rock oyster aquaculture industry (Reid and Bone 2020). Oyster aquaculture production in the Georges River and Gamay peaked in the 1970s; however, in the following decade disease and pollution caused production to significantly decline (Reid and Bone 2020). Despite this, Gamay is still considered to support some of the best examples of remnant Sydney rock oyster (S. glomerata) reefs along the New South Wales coast.…”

Section: Oyster Reefsmentioning

confidence: 99%

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A deep dive into the ecology of Gamay (Botany Bay, Australia): current knowledge and future priorities for this highly modified coastal waterway

et al. 2023

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Context Gamay is a coastal waterway of immense social, cultural and ecological value. Since European settlement, it has become a hub for industrialisation and human modification. There is growing desire for ecosystem-level management of urban waterways, but such efforts are often challenged by a lack of integrated knowledge. Aim and methods We systematically reviewed published literature and traditional ecological knowledge (TEK), and consulted scientists to produce a review of Gamay that synthesises published knowledge of Gamay’s aquatic ecosystem to identify knowledge gaps and future research opportunities. Key results We found 577 published resources on Gamay, of which over 70% focused on ecology. Intertidal rocky shores were the most studied habitat, focusing on invertebrate communities. Few studies considered multiple habitats or taxa. Studies investigating cumulative human impacts, long-term trends and habitat connectivity are lacking, and the broader ecological role of artificial substrate as habitat in Gamay is poorly understood. TEK of Gamay remains a significant knowledge gap. Habitat restoration has shown promising results and could provide opportunities to improve affected habitats in the future. Conclusion and implications This review highlights the extensive amount of knowledge that exists for Gamay, but also identifies key gaps that need to be filled for effective management.

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Section: Oyster Reefsmentioning

confidence: 99%

Section: Oyster Reefsmentioning

confidence: 99%

A deep dive into the ecology of Gamay (Botany Bay, Australia): current knowledge and future priorities for this highly modified coastal waterway

et al. 2023

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“…Studies show that the history of French oyster farming is a collapse caused by disease, including environmental crises, especially microbiological pollution, and unexplained mortality (Buestel et al 2009 ). Winter mortality and the QX (“Queensland unknown”) disease, caused by a parasite called Marteilia sydneyi , are the most universal and primary factors for Australian Sydney rock oyster ( Saccostrea glomerata ) (Reid and Bone 2020 ; Schrobback et al 2021 ). In the nineteenth century the European flat oyster ( Ostrea edulis ) was driven to extremely low levels due to parasites (Pernet et al 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Comments on the Oyster Aquaculture Industry in China: 1985–2020

Yu,

Hou,

Huan

et al. 2023

Thalassas

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Since the 1980s, China’s oyster aquaculture has grown quickly in the past four decades, and it became the top mariculture species in China with an annual production of 5.23 million in 2019. Understanding the growth of oyster aquaculture in China is important to gain insights into successful long-term production. This paper attempts to decompose China’s oyster aquaculture between trends and cycles by means of an HP filter, make a specific identification of the relevant factors according to the Cobb–Douglas production function, to summarize the objective law of yield fluctuations. Results suggest that from 1985 to 2011, China’s oyster aquaculture experienced a development stage of “rapid rise - steady development”. At this stage, it shows a slow growth trend, and the growth can persist for long periods of time. The improvement of consumption level driven by economic growth is the main facilitating factor to promote the oyster industry, export trade and oyster price are also critical, diseases and disasters did not exert much influence on the growth of China’s oyster aquaculture. The biggest problem hindering sustainable development is the tragedy of the commons caused by the limitation of marine resources, the contradiction of development will become a thorny issue.

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Metal Content and Enrichment in Bivalves within the Drainage Area of Seawater Used for a Desulfurization Process in Zhanjiang Bay, China

Zhang

Peng

Zhang

et al. 2022

Water

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As heavy metals are easy to accumulate and have strong biological toxicity, they pose a potential threat to human health by entering the human body through the cumulative effect of marine life. Land-based input is an important source of heavy metals in the ocean, which has a great influence on coastal water quality. In this study, the spatial distribution characteristics of heavy metals (Zn, Cu, Cd, Pb, Cr, As) in the coastal waters of the desulfurization process outlet of a power plant in Zhanjiang Bay were investigated, and the enrichment behavior of heavy metals by organisms (oysters and barnacles) were also studied. The results showed that, before the seawater desulfurization system was closed, there were high concentrations of heavy metals (Cu, Zn, Cd, Pb and Cr) in the surface seawater near the drainage outlet. The concentrations of these heavy metals in the surface seawater were higher than those in the bottom seawater within 100 m of the drainage outlet. After the seawater desulfurization system was closed, the average concentrations of Cu, Cr and As in seawater at each station decreased by 17.04%, 37.52% and 29.53%, respectively, while the average concentrations of Zn, Cd and Pb increased by 17.05%, 32.87% and 48.77%, respectively. Single factor pollution index (SFI) and bio-concentration factor (BCF) showed that there was a potential high accumulation risk of Zn in oysters and barnacles near the drainage outlet of desulfurization wastewater (0.5 < SFI < 1 and BCF > 1000). The SFI and BCF of each metal in oysters and barnacles decreased with the increase in distance from the drainage outlet. Generally, the coastal water quality of desulfurization process drainage area in Zhanjiang Bay were below the class Ⅱof the “Seawater quality standard” (GB 3097-1997) of China. However, the heavy metals content in seawater and organisms near the drainage outlet is slightly higher. This suggested that if the seawater desulfurization process runs for a long time, it will have a negative impact on the coastal water and organisms.

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The rise and fall of oyster cultivation in the highly urbanized Georges River estuary, Sydney, Australia: A review of lessons learned

Cited by 3 publications

References 57 publications

A deep dive into the ecology of Gamay (Botany Bay, Australia): current knowledge and future priorities for this highly modified coastal waterway

A deep dive into the ecology of Gamay (Botany Bay, Australia): current knowledge and future priorities for this highly modified coastal waterway

Comments on the Oyster Aquaculture Industry in China: 1985–2020

Metal Content and Enrichment in Bivalves within the Drainage Area of Seawater Used for a Desulfurization Process in Zhanjiang Bay, China

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