Ecological insight of seasonal plankton succession to monitor shellfish aquaculture ecosystem interactions
IntroductionBivalve aquaculture has direct and indirect effects on plankton communities, which are highly sensitive to short-term (seasonal, interannual) and long-term climate changes, although how these dynamics alter aquaculture ecosystem interactions is poorly understood. MethodsWe investigate se...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-09-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2024.1448718/full |
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| author | Hannah Sharpe Daria Gallardi Helen Gurney-Smith Thomas Guyondet Christopher W. McKindsey Anaïs Lacoursière-Roussel |
| author_facet | Hannah Sharpe Daria Gallardi Helen Gurney-Smith Thomas Guyondet Christopher W. McKindsey Anaïs Lacoursière-Roussel |
| author_sort | Hannah Sharpe |
| collection | DOAJ |
| description | IntroductionBivalve aquaculture has direct and indirect effects on plankton communities, which are highly sensitive to short-term (seasonal, interannual) and long-term climate changes, although how these dynamics alter aquaculture ecosystem interactions is poorly understood. MethodsWe investigate seasonal patterns in plankton abundance and community structure spanning several size fractions from 0.2 µm up to 5 mm, in a deep aquaculture embayment in northeast Newfoundland, Canada.ResultsUsing flow cytometry and FlowCam imaging, we observed a clear seasonal relationship between fraction sizes driven by water column stratification (freshwater input, nutrient availability, light availability, water temperature). Plankton abundance decreased proportionally with increasing size fraction, aligning with size spectra theory. Within the bay, greater mesozooplankton abundance, and a greater relative abundance of copepods, was observed closest to the aquaculture lease. No significant spatial effect was observed for phytoplankton composition. DiscussionWhile the months of August to October showed statistically similar plankton composition and size distribution slopes (i.e., food chain efficiency) and could be used for interannual variability comparisons of plankton composition, sampling for longer periods could capture long-term phenological shifts in plankton abundance and composition. Conclusions provide guidance on optimal sampling to monitor and assess aquaculture pathways of effects. |
| format | Article |
| id | doaj-art-4fa72229eb584e458d928a8938912c5e |
| institution | OA Journals |
| issn | 2296-7745 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj-art-4fa72229eb584e458d928a8938912c5e2025-08-20T01:55:19ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452024-09-011110.3389/fmars.2024.14487181448718Ecological insight of seasonal plankton succession to monitor shellfish aquaculture ecosystem interactionsHannah Sharpe0Daria Gallardi1Helen Gurney-Smith2Thomas Guyondet3Christopher W. McKindsey4Anaïs Lacoursière-Roussel5St. Andrews Biological Station, Fisheries and Oceans Canada, St. Andrews, NB, CanadaNorthwest Atlantic Fisheries Centre, Fisheries and Oceans Canada, St. John’s, NL, CanadaSt. Andrews Biological Station, Fisheries and Oceans Canada, St. Andrews, NB, CanadaGulf Fisheries Centre, Fisheries and Oceans Canada, Moncton, NB, CanadaMaurice-Lamontagne Institute, Fisheries and Oceans Canada, Mont-Joli, QC, CanadaSt. Andrews Biological Station, Fisheries and Oceans Canada, St. Andrews, NB, CanadaIntroductionBivalve aquaculture has direct and indirect effects on plankton communities, which are highly sensitive to short-term (seasonal, interannual) and long-term climate changes, although how these dynamics alter aquaculture ecosystem interactions is poorly understood. MethodsWe investigate seasonal patterns in plankton abundance and community structure spanning several size fractions from 0.2 µm up to 5 mm, in a deep aquaculture embayment in northeast Newfoundland, Canada.ResultsUsing flow cytometry and FlowCam imaging, we observed a clear seasonal relationship between fraction sizes driven by water column stratification (freshwater input, nutrient availability, light availability, water temperature). Plankton abundance decreased proportionally with increasing size fraction, aligning with size spectra theory. Within the bay, greater mesozooplankton abundance, and a greater relative abundance of copepods, was observed closest to the aquaculture lease. No significant spatial effect was observed for phytoplankton composition. DiscussionWhile the months of August to October showed statistically similar plankton composition and size distribution slopes (i.e., food chain efficiency) and could be used for interannual variability comparisons of plankton composition, sampling for longer periods could capture long-term phenological shifts in plankton abundance and composition. Conclusions provide guidance on optimal sampling to monitor and assess aquaculture pathways of effects.https://www.frontiersin.org/articles/10.3389/fmars.2024.1448718/fullphytoplanktonzooplanktonshellfishflow cytometryFlowCam imagingsize distribution |
| spellingShingle | Hannah Sharpe Daria Gallardi Helen Gurney-Smith Thomas Guyondet Christopher W. McKindsey Anaïs Lacoursière-Roussel Ecological insight of seasonal plankton succession to monitor shellfish aquaculture ecosystem interactions Frontiers in Marine Science phytoplankton zooplankton shellfish flow cytometry FlowCam imaging size distribution |
| title | Ecological insight of seasonal plankton succession to monitor shellfish aquaculture ecosystem interactions |
| title_full | Ecological insight of seasonal plankton succession to monitor shellfish aquaculture ecosystem interactions |
| title_fullStr | Ecological insight of seasonal plankton succession to monitor shellfish aquaculture ecosystem interactions |
| title_full_unstemmed | Ecological insight of seasonal plankton succession to monitor shellfish aquaculture ecosystem interactions |
| title_short | Ecological insight of seasonal plankton succession to monitor shellfish aquaculture ecosystem interactions |
| title_sort | ecological insight of seasonal plankton succession to monitor shellfish aquaculture ecosystem interactions |
| topic | phytoplankton zooplankton shellfish flow cytometry FlowCam imaging size distribution |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2024.1448718/full |
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