Current Status and Potential of Tropical Rock Oyster Aquaculture

Nowland, Samantha J.; O’Connor, Wayne A.; Osborne, Matthew W.; Southgate, Paul C.

doi:10.1080/23308249.2019.1670134

Cited by 27 publications

(15 citation statements)

References 49 publications

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“…Coastal communities in developing countries provide an important social context when assessing the benefits of tropical oyster reefs, with many heavily reliant on marine resources for food and income (Bell et al, 2009;Haque et al, 2009;Crow and Carney, 2013). Almost 100% of oyster farming in the tropics rely on wild caught spat (Nowland et al, 2020), meaning that dependent coastal communities are reliant on the health of wild oyster populations. In particular, harvesting wild and farmed oysters provides employment opportunities for women with low levels of education and economic opportunity (Szuster et al, 2008;Crow and Carney, 2013;Fao, 2020).…”

Section: Social Ecosystem Servicesmentioning

confidence: 99%

“…Naturally occurring mixed-species reefs in the tropics also provides the potential for restoring reefs using multiple species of oysters where known interactions occur, should the anticipated benefits outweigh any additional costs in doing so. Tropical oyster aquaculture is currently reliant on wild caught spat (Nowland et al, 2020), which is likely to be the case for restoration as well (at least initially). Future studies that identify biological differences between tropical species of reef-building oysters will be key to designing future reefs that target the recruitment of multiple species.…”

Section: Key Biological Differences Between Temperate and Tropical Oy...mentioning

confidence: 99%

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Some Like it Hot: The Ecology, Ecosystem Benefits and Restoration Potential of Oyster Reefs in Tropical Waters

et al. 2022

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Oysters are ecosystem engineers that form biogenic reef habitats in shallow coastal and estuarine waters and provide important ecosystem services. Widespread global declines have triggered a world-wide restoration movement, however a paucity of information on tropical oyster reefs has resulted in their exclusion from existing global assessments and, consequently, restoration. In this review we quantified the known global diversity of native reef-building oysters to compare diversity between temperate and tropical regions and assessed historic oyster reef presence and declines using two tropical case studies. We then summarised the biology, ecology, and benefits of tropical oyster reefs, which have four functional differences to temperate reefs: 1) the diversity of reef-building oysters is over four times higher in tropical than in temperate regions; 2) tropical reef-building oysters can have continuous spatfall throughout the year whereas temperate species have a defined season; 3) tropical reef-building oysters are generally faster growing than temperate reef-building oysters; and 4) tropical oysters commonly create mixed-species oyster reefs whereas temperate oyster reefs are generally formed by a single oyster species. There is evidence of unsustainable and destructive harvesting that has resulted in the decline of tropical oyster reefs, and these reefs should therefore be included in restoration efforts. We highlight knowledge gaps that can guide future research to develop important foundational information that will remove barriers to tropical oyster reef restoration.

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Section: Social Ecosystem Servicesmentioning

confidence: 99%

Section: Key Biological Differences Between Temperate and Tropical Oy...mentioning

confidence: 99%

Some Like it Hot: The Ecology, Ecosystem Benefits and Restoration Potential of Oyster Reefs in Tropical Waters

et al. 2022

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“…In tropical countries, the oyster is one of the attractive species for aquaculture candidates [5,6]. Among indigenous oysters in South East Asia, Crassostrea iredalei, is an economically important species widely cultured in Thailand [7], the Philippines [8], Malaysia [9] and Fiji [10].…”

Section: Introductionmentioning

confidence: 99%

Mantle and Its Protective Role of the Slipper-shaped Oyster (Crassostrea Iredalei) in Response to Crude Oil

Abidin

Leksono

Risjani

et al. 2022

International Journal of Biology and Biomedical Engineering

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The mantle plays important role in the mechanism of oyster protection caused by environmental pollutants. This study aims to analyze the effect of water accommodated fraction of crude oil on the mantle of Slipper-Shaped Oyster (Crassostrea iredalei) at different doses and time exposure. The ventral and posterior segments of the mantle were fixed, and tissue sections were stained with hematoxylin-eosin, PAS-Periodic acid–Schiff, and TEM-transmission electron microscopy techniques. HE-hematoxylin and eosin, PAS-alcian, and TEM-transmission electron microscopy were used to characterize the different mucosubstances and to describe the ultrastructure-related response on a certain part of the mantle after exposure. The tissues of epithelium, connective tissue, mucus cells, pigmented cells, numerous hemolymph sinuses, shell formation, and blood sinus were recognized under a light microscope. The mucous cell was excreted in all the concentrations (control, 12.5, 25, 50, and 100% Water Acomodate Fraction) and also in the time exposure (24, 48, 72, and 96 hours). A large number of mucous cells was produced in the inner mantle cavity (IMC) and outer mantle cavity (OMC). Mucous cells increased in number with increasing WAF concentration as well as the length of exposure time. The highest number of mucus cells was observed at 100% Water Accommodate Fraction (WAF) concentration and 96 hours of exposure. The structure and function of the mantle, the shell formation, the edge of the mantle, mucous cell, muscle bundles, nerve fibers, and epithelium layer of the Slipper-Shaped Oyster (Crassostrea iredalei) were documented in this study.

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“…Asia produced about 65 MT (US$141.1 billion) in the aquaculture section and the production of molluscs such as oysters, mussels and others stand about 14 MT which worth around US$17 billion in 2014 (FAO, 2016). Malaysia had been reported to produce 42.6 thousand tonnes (around US$50 million) of molluscs in 2014 (FAO, 2016) and it was reported that commercial-scale production of oysters, of more than 100 tonnes per annum occurs in Malaysia (Nowland et al, 2020). Oysters are filter feeder organisms where they filter the food particles from the surrounding environment including plankton, virus, bacteria and others (FAO, 2006;Elston et al, 2008;Wang et al, 2008;Ueki et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

First detection of Shiga toxin producing Escherichia coli O157:H7 (HlyA gene) and enumeration of most probable number (MPN) of fecal coliforms and Escherichia coli in cage cultured oysters (Crassostrea iredalei) and water from southern Malaysia

Hong¹,

Bobby²,

Norizan³

et al. 2021

MJM

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Current Status and Potential of Tropical Rock Oyster Aquaculture

Cited by 27 publications

References 49 publications

Some Like it Hot: The Ecology, Ecosystem Benefits and Restoration Potential of Oyster Reefs in Tropical Waters

Some Like it Hot: The Ecology, Ecosystem Benefits and Restoration Potential of Oyster Reefs in Tropical Waters

Mantle and Its Protective Role of the Slipper-shaped Oyster (Crassostrea Iredalei) in Response to Crude Oil

First detection of Shiga toxin producing Escherichia coli O157:H7 (HlyA gene) and enumeration of most probable number (MPN) of fecal coliforms and Escherichia coli in cage cultured oysters (Crassostrea iredalei) and water from southern Malaysia

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