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Oyster reef restoration supports increased nekton biomass and potential commercial fishery value.

Humphries AT, La Peyre MK - PeerJ (2015)

Bottom Line: As a result, justification for management activities increasingly asks for two lines of evidence: (1) biological proof of augmented ecosystem function or service, and (2) monetary valuation of these services.For oyster reefs, which have seen significant global declines and increasing restoration work, the need to provide both biological and monetary evidence of reef services on a local-level has become more critical in a time of declining resources.Overall, and with little change over time, fish and invertebrate biomass is 212% greater at restored oyster reefs than mud-bottom, or 0.12 kg m(-2).

View Article: PubMed Central - HTML - PubMed

Affiliation: School of Renewable Natural Resources, Louisiana State University, AgCenter , Baton Rouge, LA , USA ; Atlantic Ecology Division, United States Environmental Protection Agency , Narragansett, RI , USA ; Current affiliation: College of the Environment and Life Sciences, University of Rhode Island , Kingston, RI , USA.

ABSTRACT
Across the globe, discussions centered on the value of nature drive many conservation and restoration decisions. As a result, justification for management activities increasingly asks for two lines of evidence: (1) biological proof of augmented ecosystem function or service, and (2) monetary valuation of these services. For oyster reefs, which have seen significant global declines and increasing restoration work, the need to provide both biological and monetary evidence of reef services on a local-level has become more critical in a time of declining resources. Here, we quantified species biomass and potential commercial value of nekton collected from restored oyster (Crassostrea virginica) reefs in coastal Louisiana over a 3-year period, providing multiple snapshots of biomass support over time. Overall, and with little change over time, fish and invertebrate biomass is 212% greater at restored oyster reefs than mud-bottom, or 0.12 kg m(-2). The additional biomass of commercial species is equivalent to an increase of local fisheries value by 226%, or $0.09 m(-2). Understanding the ecosystem value of restoration projects, and how they interact with regional management priorities, is critical to inform local decision-making and provide testable predictions. Quantitative estimates of potential commercial fisheries enhancement by oyster reef restoration such as this one can be used directly by local managers to determine the expected return on investment.

No MeSH data available.


Related in: MedlinePlus

Increased nekton biomass and value.Mean (±one standard error) of increased (A) nekton biomass ($ kg m−2) and (B) commercial fishery value ($ m−2; 2011 US dollar) of total nekton catch at all oyster reef sites as compared to reference, mud-bottom sites. Linear model results are displayed in the top corner.
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fig-4: Increased nekton biomass and value.Mean (±one standard error) of increased (A) nekton biomass ($ kg m−2) and (B) commercial fishery value ($ m−2; 2011 US dollar) of total nekton catch at all oyster reef sites as compared to reference, mud-bottom sites. Linear model results are displayed in the top corner.

Mentions: Nekton biomass at oyster reefs was 212% greater than at mud-bottom, or 0.122 (±0.039) kg m−2 (Table 4). The potential for oyster reefs to increase nekton biomass was positive in all sampling periods except one (Fig. 4A). The linear model, however, was not statistically significant (F = 1.133, p-value = 0.358) and had an r-squared value of 0.169, with an intercept of 0.11 and slope of −0.003.


Oyster reef restoration supports increased nekton biomass and potential commercial fishery value.

Humphries AT, La Peyre MK - PeerJ (2015)

Increased nekton biomass and value.Mean (±one standard error) of increased (A) nekton biomass ($ kg m−2) and (B) commercial fishery value ($ m−2; 2011 US dollar) of total nekton catch at all oyster reef sites as compared to reference, mud-bottom sites. Linear model results are displayed in the top corner.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4556142&req=5

fig-4: Increased nekton biomass and value.Mean (±one standard error) of increased (A) nekton biomass ($ kg m−2) and (B) commercial fishery value ($ m−2; 2011 US dollar) of total nekton catch at all oyster reef sites as compared to reference, mud-bottom sites. Linear model results are displayed in the top corner.
Mentions: Nekton biomass at oyster reefs was 212% greater than at mud-bottom, or 0.122 (±0.039) kg m−2 (Table 4). The potential for oyster reefs to increase nekton biomass was positive in all sampling periods except one (Fig. 4A). The linear model, however, was not statistically significant (F = 1.133, p-value = 0.358) and had an r-squared value of 0.169, with an intercept of 0.11 and slope of −0.003.

Bottom Line: As a result, justification for management activities increasingly asks for two lines of evidence: (1) biological proof of augmented ecosystem function or service, and (2) monetary valuation of these services.For oyster reefs, which have seen significant global declines and increasing restoration work, the need to provide both biological and monetary evidence of reef services on a local-level has become more critical in a time of declining resources.Overall, and with little change over time, fish and invertebrate biomass is 212% greater at restored oyster reefs than mud-bottom, or 0.12 kg m(-2).

View Article: PubMed Central - HTML - PubMed

Affiliation: School of Renewable Natural Resources, Louisiana State University, AgCenter , Baton Rouge, LA , USA ; Atlantic Ecology Division, United States Environmental Protection Agency , Narragansett, RI , USA ; Current affiliation: College of the Environment and Life Sciences, University of Rhode Island , Kingston, RI , USA.

ABSTRACT
Across the globe, discussions centered on the value of nature drive many conservation and restoration decisions. As a result, justification for management activities increasingly asks for two lines of evidence: (1) biological proof of augmented ecosystem function or service, and (2) monetary valuation of these services. For oyster reefs, which have seen significant global declines and increasing restoration work, the need to provide both biological and monetary evidence of reef services on a local-level has become more critical in a time of declining resources. Here, we quantified species biomass and potential commercial value of nekton collected from restored oyster (Crassostrea virginica) reefs in coastal Louisiana over a 3-year period, providing multiple snapshots of biomass support over time. Overall, and with little change over time, fish and invertebrate biomass is 212% greater at restored oyster reefs than mud-bottom, or 0.12 kg m(-2). The additional biomass of commercial species is equivalent to an increase of local fisheries value by 226%, or $0.09 m(-2). Understanding the ecosystem value of restoration projects, and how they interact with regional management priorities, is critical to inform local decision-making and provide testable predictions. Quantitative estimates of potential commercial fisheries enhancement by oyster reef restoration such as this one can be used directly by local managers to determine the expected return on investment.

No MeSH data available.


Related in: MedlinePlus