Beyond Bioextraction: The Role of Oyster-Mediated Denitrification in Nutrient Management

Ayvazian, Suzanne; Mulvaney, Kate; Zarnoch, Chester; Palta, Monica; Reichert-Nguyen, Julie; McNally, Sean; Pilaro, Margaret; Jones, Aaron; Terry, Chip; Fulweiler, Robinson W.

doi:10.1021/acs.est.1c01901

i

Beyond Bioextraction: The Role of Oyster-Mediated Denitrification in Nutrient Management

2021
By Ayvazian, Suzanne ; Mulvaney, Kate ; Zarnoch, Chester ; ...

Details

Journal Title:

Environmental Science & Technology
Personal Author:

Ayvazian, Suzanne ; Mulvaney, Kate ; Zarnoch, Chester ; Palta, Monica ; Reichert-Nguyen, Julie ; McNally, Sean ; Pilaro, Margaret ; Jones, Aaron ; Terry, Chip ; Fulweiler, Robinson W.
NOAA Program & Office:

NMFS (National Marine Fisheries Service)
Description:

Recently, interest has grown in using oyster-mediated denitri ﬁcation resulting from aquaculture and restoration as mechanisms for reactive nitrogen (N) removal. To date, short-term N removal through bioextraction has received the mostmanagement interest, but there is a growing body of research that has shown oysters can also mediate the long-term removal of Nthrough denitri ﬁcation (the microbial conversion of reactive N to relatively inert dinitrogen (N 2) gas). Oyster suspension feeding and ammonium release via waste and deposition of organic matter to the sediments can stimulate nitri ﬁcation−denitri ﬁcation near oyster reefs and aquaculture sites. Oysters also harbor a diverse microbial community in their tissue and shell promotingdenitri ﬁcation and thus enhanced N removal. Additionally, surface areas on oyster reefs provide a habitat for other ﬁlter-feeding macrofaunal communities that can further enhance denitri ﬁcation. Denitri ﬁcation is a complex biogeochemical process that can be diﬃcult to convey to stakeholders. These complexities have limited consideration and inclusion of oyster-mediated denitri ﬁcation
Keywords:

Environmental Chemistry General Chemistry
Source:

Environmental Science & Technology, 55(21), 14457-14465
DOI:

https://doi.org/10.1021/acs.est.1c01901
ISSN:

0013-936X ; 1520-5851
Format:

PDF
Publisher:

American Chemical Society (ACS)
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by-nc-nd/4.0/
Rights Information:

CC BY-NC-ND
Compliance:

Library
Main Document Checksum:

urn:sha256:28ee584a3b185aa3afca358d04af82e547a13cf7046511d3ddf7fdac35520c83
Download URL:

https://repository.library.noaa.gov/view/noaa/52518/noaa_52518_DS1.pdf
File Type:

[PDF - 3.59 MB ]

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