Effects of a bacteria-produced algicide on non-target marine invertebrate species
| Author(s) | Simons,Victoria E. | |
| Author(s) | Coyne, Kathryn J. | |
| Author(s) | Warner, Mark E. | |
| Author(s) | Dolan, Margaret M. | |
| Author(s) | Cohen, Jonathan H. | |
| Date Accessioned | 2023-12-08T14:13:13Z | |
| Date Available | 2023-12-08T14:13:13Z | |
| Publication Date | 2021-01-12 | |
| Description | This article was originally published in Scientific Reports. The version of record is available at: https://doi.org/10.1038/s41598-020-79814-w. © The Author(s) 2021 | |
| Abstract | 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%). | |
| Sponsor | The authors thank Deepak Nanjappa for his work in refining the algicide production process. We thank University of Maryland’s Horn Point Lab for providing oyster larvae, and the Delaware Center for the Inland Bays for the Haskins disease-resistant strain oysters. This project was funded by the NOAA PCMHAB program (Grant # NA15NOS4780176) to K.C., M.W., and J.C., contribution number PCM58. This manuscript is based on parts of the thesis “Effects of a Bacteria-Produced Algicide on Non-Target Marine Animal Species” by V.S. | |
| Citation | Simons, V.E., Coyne, K.J., Warner, M.E. et al. Effects of a bacteria-produced algicide on non-target marine invertebrate species. Sci Rep 11, 583 (2021). https://doi.org/10.1038/s41598-020-79814-w | |
| ISSN | 2045-2322 | |
| URL | https://udspace.udel.edu/handle/19716/33669 | |
| Language | en_US | |
| Publisher | Scientific Reports | |
| dc.rights | Attribution 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| Keywords | life below water | |
| Title | Effects of a bacteria-produced algicide on non-target marine invertebrate species | |
| Type | Article |
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