Diarrhetic Shellfish Toxin Monitoring in Commercial Wild Harvest Bivalve Shellfish in New South Wales, Australia
An end-product market survey on biotoxins in commercial wild harvest shellfish (<i>Plebidonax deltoides</i>, <i>Katelysia</i> spp., <i>Anadara granosa</i>, <i>Notocallista kingii</i>) during three harvest seasons (2015⁻2017) from the coast of...
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doaj-dd6fde16e755402ba74412022ef8221d2020-11-25T00:39:39ZengMDPI AGToxins2072-66512018-10-01101144610.3390/toxins10110446toxins10110446Diarrhetic Shellfish Toxin Monitoring in Commercial Wild Harvest Bivalve Shellfish in New South Wales, AustraliaHazel Farrell0Penelope Ajani1Shauna Murray2Phil Baker3Grant Webster4Steve Brett5Anthony Zammit6NSW Food Authority, 6 Avenue of the Americas, Newington, NSW 2127, AustraliaClimate Change Cluster (C3), University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, AustraliaClimate Change Cluster (C3), University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, AustraliaNSW Food Authority, 6 Avenue of the Americas, Newington, NSW 2127, AustraliaNSW Food Authority, 6 Avenue of the Americas, Newington, NSW 2127, AustraliaMicroalgal Services, 308 Tucker Rd, Ormond, VIC 3204, AustraliaNSW Food Authority, 6 Avenue of the Americas, Newington, NSW 2127, AustraliaAn end-product market survey on biotoxins in commercial wild harvest shellfish (<i>Plebidonax deltoides</i>, <i>Katelysia</i> spp., <i>Anadara granosa</i>, <i>Notocallista kingii</i>) during three harvest seasons (2015⁻2017) from the coast of New South Wales, Australia found 99.38% of samples were within regulatory limits. Diarrhetic shellfish toxins (DSTs) were present in 34.27% of 321 samples but only in pipis (<i>P. deltoides</i>), with two samples above the regulatory limit. Comparison of these market survey data to samples (phytoplankton in water and biotoxins in shellfish tissue) collected during the same period at wild harvest beaches demonstrated that, while elevated concentrations of <i>Dinophysis</i> were detected, a lag in detecting bloom events on two occasions meant that wild harvest shellfish with DSTs above the regulatory limit entered the marketplace. Concurrently, data (phytoplankton and biotoxin) from Sydney rock oyster (<i>Saccostrea glomerata</i>) harvest areas in estuaries adjacent to wild harvest beaches impacted by DSTs frequently showed elevated <i>Dinophysis</i> concentrations, but DSTs were not detected in oyster samples. These results highlighted a need for distinct management strategies for different shellfish species, particularly during <i>Dinophysis</i> bloom events. DSTs above the regulatory limit in pipis sampled from the marketplace suggested there is merit in looking at options to strengthen the current wild harvest biotoxin management strategies.https://www.mdpi.com/2072-6651/10/11/446diarrhetic shellfish toxins<i>Dinophysis</i>wild harvestbivalve shellfishpipis (<i>Plebidonax deltoides</i>)Sydney rock oyster (<i>Saccostrea glomerata</i>) |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hazel Farrell Penelope Ajani Shauna Murray Phil Baker Grant Webster Steve Brett Anthony Zammit |
spellingShingle |
Hazel Farrell Penelope Ajani Shauna Murray Phil Baker Grant Webster Steve Brett Anthony Zammit Diarrhetic Shellfish Toxin Monitoring in Commercial Wild Harvest Bivalve Shellfish in New South Wales, Australia Toxins diarrhetic shellfish toxins <i>Dinophysis</i> wild harvest bivalve shellfish pipis (<i>Plebidonax deltoides</i>) Sydney rock oyster (<i>Saccostrea glomerata</i>) |
author_facet |
Hazel Farrell Penelope Ajani Shauna Murray Phil Baker Grant Webster Steve Brett Anthony Zammit |
author_sort |
Hazel Farrell |
title |
Diarrhetic Shellfish Toxin Monitoring in Commercial Wild Harvest Bivalve Shellfish in New South Wales, Australia |
title_short |
Diarrhetic Shellfish Toxin Monitoring in Commercial Wild Harvest Bivalve Shellfish in New South Wales, Australia |
title_full |
Diarrhetic Shellfish Toxin Monitoring in Commercial Wild Harvest Bivalve Shellfish in New South Wales, Australia |
title_fullStr |
Diarrhetic Shellfish Toxin Monitoring in Commercial Wild Harvest Bivalve Shellfish in New South Wales, Australia |
title_full_unstemmed |
Diarrhetic Shellfish Toxin Monitoring in Commercial Wild Harvest Bivalve Shellfish in New South Wales, Australia |
title_sort |
diarrhetic shellfish toxin monitoring in commercial wild harvest bivalve shellfish in new south wales, australia |
publisher |
MDPI AG |
series |
Toxins |
issn |
2072-6651 |
publishDate |
2018-10-01 |
description |
An end-product market survey on biotoxins in commercial wild harvest shellfish (<i>Plebidonax deltoides</i>, <i>Katelysia</i> spp., <i>Anadara granosa</i>, <i>Notocallista kingii</i>) during three harvest seasons (2015⁻2017) from the coast of New South Wales, Australia found 99.38% of samples were within regulatory limits. Diarrhetic shellfish toxins (DSTs) were present in 34.27% of 321 samples but only in pipis (<i>P. deltoides</i>), with two samples above the regulatory limit. Comparison of these market survey data to samples (phytoplankton in water and biotoxins in shellfish tissue) collected during the same period at wild harvest beaches demonstrated that, while elevated concentrations of <i>Dinophysis</i> were detected, a lag in detecting bloom events on two occasions meant that wild harvest shellfish with DSTs above the regulatory limit entered the marketplace. Concurrently, data (phytoplankton and biotoxin) from Sydney rock oyster (<i>Saccostrea glomerata</i>) harvest areas in estuaries adjacent to wild harvest beaches impacted by DSTs frequently showed elevated <i>Dinophysis</i> concentrations, but DSTs were not detected in oyster samples. These results highlighted a need for distinct management strategies for different shellfish species, particularly during <i>Dinophysis</i> bloom events. DSTs above the regulatory limit in pipis sampled from the marketplace suggested there is merit in looking at options to strengthen the current wild harvest biotoxin management strategies. |
topic |
diarrhetic shellfish toxins <i>Dinophysis</i> wild harvest bivalve shellfish pipis (<i>Plebidonax deltoides</i>) Sydney rock oyster (<i>Saccostrea glomerata</i>) |
url |
https://www.mdpi.com/2072-6651/10/11/446 |
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