Acute turbidity exposures with Port of Miami sediments impact Orbicella faveolata tissue regeneration

May, L.A.; Miller, C.V.; Moffitt, Z.J.; Balthis, L.; Karazsia, J.; Wilber, P.; Woodley, C.M.

doi:10.1016/j.marpolbul.2023.115217

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Acute turbidity exposures with Port of Miami sediments impact Orbicella faveolata tissue regeneration

2023
By May, L.A. ; Miller, C.V. ; Moffitt, Z.J. ; ...
Source: Marine Pollution Bulletin 193 (2023) 115217

[PDF-2.43 MB]

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Journal Title:

Marine Pollution Bulletin
Personal Author:

May, L.A. ; Miller, C.V. ; Moffitt, Z.J. ; Balthis, L. ; Karazsia, J. ; ... More +

May, L.A. ; Miller, C.V. ; Moffitt, Z.J. ; Balthis, L. ; Karazsia, J. ; Wilber, P. ; Woodley, C.M. Less -
NOAA Program & Office:

CoRIS (Coral Reef Information System) ; NMFS (National Marine Fisheries Service) ; SEFSC (Southeast Fisheries Science Center) ; NOS (National Ocean Service) ; NCCOS (National Centers for Coastal Ocean Science)

CoRIS (Coral Reef Information System) ; NMFS (National Marine Fisheries Service) ; SEFSC (Southeast Fisheries Science Center) ; NOS (National Ocean Service) ; NCCOS (National Centers for Coastal Ocean Science) Less -
Description:

We evaluated acute turbidity effects on a threatened coral species (Orbicella faveolata) under three short-term challenge scenarios using a Port of Miami sediment homogenate to simulate turbid conditions during dredging. For these experiments we designed a simple coral challenge test system that kept turbidity stable, without adverse effects to the coral. A 96-h coral challenge experiment demonstrated that low turbidity levels (≥4 NTU) have negative effects on O. faveolata tissue regeneration. A 48-h turbidity exposure (maximum 30 NTU) had no effect on O. faveolata tissue regeneration, showing that short term turbidity exposures may not be detrimental to coral health. In a 13-day test, treated coral fragments (maximum 30 NTU) exhibited significant delays in tissue regeneration, but recovery was observed after approximately one week. The results presented here can be used to inform management decisions for proposed dredging activities proximal to coral reef habitats.
Keywords:

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Corals Dredging Embryos Sea Urchins Toxicity Testing Turbidity Coral Health Orbicella Faveolata Sea Urchin Embryo Development Toxicity Test Tissue Regeneration
Source:

Marine Pollution Bulletin 193 (2023) 115217
DOI:

https://doi.org/10.1016/j.marpolbul.2023.115217
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Journal Article
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urn:sha256:668f7b6de17e47826430327aa81f00fdbae6f915f9b6c45a53c405308c037a1e
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Acute turbidity exposures with Port of Miami sediments impact Orbicella faveolata tissue regeneration

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