Effects of a bacteria-produced algicide on non-target marine invertebrate species

Harmful algal blooms (HABs) affect both freshwater and marine systems. Laboratory experiments suggest an exudate produced by the bacterium Shewanella sp. IRI-160 could be used to prevent or mitigate dinoflagellate blooms; however, effects on non-target organisms are unknown. The algicide (IRI-160AA)...

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Autores principales: Simons, Victoria E., Coyne, Kathryn J., Warner, Mark E., Dolan, Margaret M., Cohen, Jonathan H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7803755/
https://www.ncbi.nlm.nih.gov/pubmed/33436753
http://dx.doi.org/10.1038/s41598-020-79814-w
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author Simons, Victoria E.
Coyne, Kathryn J.
Warner, Mark E.
Dolan, Margaret M.
Cohen, Jonathan H.
author_facet Simons, Victoria E.
Coyne, Kathryn J.
Warner, Mark E.
Dolan, Margaret M.
Cohen, Jonathan H.
author_sort Simons, Victoria E.
collection PubMed
description Harmful algal blooms (HABs) affect both freshwater and marine systems. Laboratory experiments suggest an exudate produced by the bacterium Shewanella sp. IRI-160 could be used to prevent or mitigate dinoflagellate blooms; however, effects on non-target organisms are unknown. The algicide (IRI-160AA) was tested on various ontogenetic stages of the copepod Acartia tonsa (nauplii and adult copepodites), the blue crab Callinectes sapidus (zoea larvae and megalopa postlarvae), and the eastern oyster Crassostrea virginica (pediveliger larvae and adults). Mortality experiments with A. tonsa revealed that the 24-h LC50 was 13.4% v/v algicide for adult females and 5.96% for early-stage nauplii. For C. sapidus, the 24-h LC50 for first-stage zoeae was 16.8%; results were not significant for megalopae or oysters. Respiration rates for copepod nauplii increased in the 11% concentration, and in the 11% and 17% concentrations for crab zoeae; rates of later stages and oysters were unaffected. Activity level was affected for crab zoeae in the 1%, 11%, and 17% treatments, and for oyster pediveliger larvae at the 17% level. Activity of later stages and of adult copepods was unaffected. Smaller, non-target biota with higher surface to volume could be negatively impacted from IRI-160AA dosing, but overall the taxa and stages assayed were tolerant to the algicide at concentrations required for dinoflagellate mortality (EC50 =  ~ 1%).
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spelling pubmed-78037552021-01-13 Effects of a bacteria-produced algicide on non-target marine invertebrate species Simons, Victoria E. Coyne, Kathryn J. Warner, Mark E. Dolan, Margaret M. Cohen, Jonathan H. Sci Rep Article Harmful algal blooms (HABs) affect both freshwater and marine systems. Laboratory experiments suggest an exudate produced by the bacterium Shewanella sp. IRI-160 could be used to prevent or mitigate dinoflagellate blooms; however, effects on non-target organisms are unknown. The algicide (IRI-160AA) was tested on various ontogenetic stages of the copepod Acartia tonsa (nauplii and adult copepodites), the blue crab Callinectes sapidus (zoea larvae and megalopa postlarvae), and the eastern oyster Crassostrea virginica (pediveliger larvae and adults). Mortality experiments with A. tonsa revealed that the 24-h LC50 was 13.4% v/v algicide for adult females and 5.96% for early-stage nauplii. For C. sapidus, the 24-h LC50 for first-stage zoeae was 16.8%; results were not significant for megalopae or oysters. Respiration rates for copepod nauplii increased in the 11% concentration, and in the 11% and 17% concentrations for crab zoeae; rates of later stages and oysters were unaffected. Activity level was affected for crab zoeae in the 1%, 11%, and 17% treatments, and for oyster pediveliger larvae at the 17% level. Activity of later stages and of adult copepods was unaffected. Smaller, non-target biota with higher surface to volume could be negatively impacted from IRI-160AA dosing, but overall the taxa and stages assayed were tolerant to the algicide at concentrations required for dinoflagellate mortality (EC50 =  ~ 1%). Nature Publishing Group UK 2021-01-12 /pmc/articles/PMC7803755/ /pubmed/33436753 http://dx.doi.org/10.1038/s41598-020-79814-w Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Simons, Victoria E.
Coyne, Kathryn J.
Warner, Mark E.
Dolan, Margaret M.
Cohen, Jonathan H.
Effects of a bacteria-produced algicide on non-target marine invertebrate species
title Effects of a bacteria-produced algicide on non-target marine invertebrate species
title_full Effects of a bacteria-produced algicide on non-target marine invertebrate species
title_fullStr Effects of a bacteria-produced algicide on non-target marine invertebrate species
title_full_unstemmed Effects of a bacteria-produced algicide on non-target marine invertebrate species
title_short Effects of a bacteria-produced algicide on non-target marine invertebrate species
title_sort effects of a bacteria-produced algicide on non-target marine invertebrate species
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7803755/
https://www.ncbi.nlm.nih.gov/pubmed/33436753
http://dx.doi.org/10.1038/s41598-020-79814-w
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