Role and Value of Nitrogen Regulation Provided by Oysters (Crassostrea virginica) in the Mission-Aransas Estuary, Texas, USA

Pollack, Jennifer Beseres; Yoskowitz, David; Kim, Hae-Cheol; Montagna, Paul A.

doi:10.1371/journal.pone.0065314

Cited by 74 publications

(44 citation statements)

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“…Based on the conservative NZU pricing we estimate the C-value of the loss of temperate A. marina forests at US $490 ha −1 . In addition, the removal of 1 ton of N in estuarine systems has been valued at approximately US $15000 (Newell et al, 2002;Piehler and Smyth, 2011;Beseres Pollack et al, 2013). This is equivalent to US $124000 per ha −1 of A. marina forest, assuming a similar calculation applies.…”

Section: Carbon and Nitrogen Value In Temperate A Marina Forestsmentioning

confidence: 99%

“…Various studies have now provided a monetary value for C and N (Newell et al, 2002;Piehler and Smyth, 2011;Beseres Pollack et al, 2013;Moore and Diaz, 2015) making the value of C and N stocks in estuarine ecosystems easier to assess. The value of 1 ton of C ranges widely, from US $6.20 (New Zealand Unit, NZU, spot price, February 2016) to $220 (Moore and Diaz, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The value of 1 ton of C ranges widely, from US $6.20 (New Zealand Unit, NZU, spot price, February 2016) to $220 (Moore and Diaz, 2015). In comparison, the removal of 1 ton of N in estuarine systems has been valued at approximately US $15,000 (Newell et al, 2002;Piehler and Smyth, 2011;Beseres Pollack et al, 2013). Regardless of the pricing model used, these valuations require accurate estimates of C and N stocks within the system.…”

Section: Introductionmentioning

confidence: 99%

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Carbon and Nitrogen Stocks and Below-Ground Allometry in Temperate Mangroves

2016

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Mangroves play an important role in the storage of carbon (C) and nitrogen (N) within estuarine systems, yet are being lost at an alarming rate throughout the tropics. In contrast, temperate mangroves have increased in area at many locations in recent decades. Field surveys, sediment sampling, allometry, and C and N analysis were used to determine total C and N stocks in five temperate Avicennia marina subsp. australasica forests in New Zealand. This is the first study developing allometric functions to estimate root biomass C and N stocks for A. marina. A. marina forests stored 117.1 ± 16.8 t C ha −1 and 15.4 ± 1.0 t N ha −1 in above and below-ground biomass and sediment to 100 cm depth. Below-ground biomass and sediment C and N stocks contributed 88 ± 3 and 99 ± 0.4% to total C and N stocks, respectively, emphasizing the importance of below-ground biomass and sediment in mangrove ecosystems. The results of this study can be used to inform management decisions for estuarine and coastal ecosystems, currently undergoing rapid changes in mangrove area.

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Section: Carbon and Nitrogen Value In Temperate A Marina Forestsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Carbon and Nitrogen Stocks and Below-Ground Allometry in Temperate Mangroves

2016

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“…2). The physical and ecological factors that affect oyster populations in the region have been extensively studied (e.g., Piazza et al 2005, Stunz et al 2010, Humphries et al 2011, Beseres et al 2013, but very few studies have specifically considered societal or stakeholder influences on sustainability (La Peyre et al 2012). Ecology and Society 19(3): 38 http://www.ecologyandsociety.org/vol19/iss3/art38/ The Alabama, Louisiana, and Texas coastal communities included in this study were in close proximity to bays and coastal waters recognized to have substantial oyster productivity and reef habitat (Fig.…”

Section: Study Areamentioning

confidence: 99%

“…Ecology and Society 19(3): 38 http://www.ecologyandsociety.org/vol19/iss3/art38/ the ecosystem services provided by oyster reefs include essential habitat and foraging grounds for numerous species of fishes and mobile invertebrates (e.g., Coen et al 1999, Peterson et al 2003, Grabowski et al 2005, Humphries et al 2011; erosion control and coastal protection (Meyer et al 1997, Piazza et al 2005, Scyphers et al 2011; and water filtration, benthic-pelagic coupling, and enhanced denitrification (e.g., Newell 2004, Piehler and Smyth 2011, Beseres et al 2013. At the same time, few fisheries have been as culturally diverse and symbolic as the oyster fishery (Dyer andLeard 1994, Kurlansky 2007).…”

Section: Introductionmentioning

confidence: 99%

Integrating societal perspectives and values for improved stewardship of a coastal ecosystem engineer

Scyphers¹,

Picou²,

Brumbaugh³

et al. 2014

E&S

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ABSTRACT. Oyster reefs provide coastal societies with a vast array of ecosystem services, but are also destructively harvested as an economically and culturally important fishery resource, exemplifying a complex social-ecological system (SES). Historically, societal demand for oysters has led to destructive and unsustainable levels of harvest, which coupled with multiple other stressors has placed oyster reefs among the most globally imperiled coastal habitats. However, more recent studies have demonstrated that large-scale restoration is possible and that healthy oyster populations can be sustained with effective governance and stewardship. However, both of these require significant societal support or financial investment. In our study, we explored relationships among how coastal societies (1) perceive and value oyster ecosystem services, (2) recognize and define problems associated with oyster decline, and (3) perceive or support stewardship initiatives. We specifically focused on the SES of eastern oysters (Crassostrea virginica) and coastal societies in the northern Gulf of Mexico, a region identified as offering among the last and best opportunities to sustainably balance conservation objectives with a wild fishery. We found that, in addition to harvest-related benefits, oysters were highly valued for providing habitat, mitigating shoreline erosion, and improving water quality or clarity. Our results also showed that although most respondents recognized that oyster populations have declined, many respondents characterized the problem differently than most scientific literature does. Among a variety of initiatives for enhancing sustainability, spawning sanctuaries and reef restoration were well supported in all states, but support for harvest reductions was less consistent. Our study suggests that public support for maintaining both harvest and ecosystem services exists at societal levels and that enhancing public awareness regarding the extent and causes of oyster decline could garner additional support for stewardship initiatives. Collectively, the societal, economic, and biophysical complexities of the northern Gulf of Mexico oyster SES illustrate the need and public support for developing more comprehensive management schemes for exploited ecosystem engineers.

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Recovery of eutrophized marine ecosystems using the European flat oyster, Ostrea edulis

Albentosa

Akinyemi

Vera

et al. 2023

Aquatic Conservation

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1. The development of tourism and intensification of agriculture has released large amounts of nitrogen and phosphorus into the Mar Menor coastal lagoon in South-east Spain, resulting in a phytoplankton bloom in 2016. This bloom turned the clear and transparent waters turbid and greenish, and killed approximately 85% of benthic macrophytes.2. Nutrient bioextraction by flat oysters, Ostrea edulis, has been proposed for remediation of these eutrophication events and water quality recovery.3. This research aims to quantify the clearance rate and investigate the genetic origin of Mar Menor oysters under eutrophized conditions for potential applications to bioremediation projects. Oligotrophic and eutrophic conditions were replicated in the laboratory, and oyster feeding behaviour (i.e. clearance rates, ingestion rates, absorption efficiency and absorption rates) were studied using a flow-through system. 4. The genetic characterization of oysters showed no significant difference between individuals from the Mar Menor and individuals collected from a nearby Mediterranean bed (Tabarca Island). 5. Based on the physiological results observed, oysters were grouped into highfeeder (HF) and low-feeder (LF) categories according to their clearance rate, that was 3-fold higher in the HF group. Different responses in feeding behaviour were observed under eutrophic conditions in both oyster groups. Constraints in the absorption capacity of LF oysters seemed to be related to their reduced filtering activity. Lower body condition of LF oysters was evidenced by their negative scope for growth value.6. From this work, several conclusions can be drawn for future restoration/ bioextraction actions: (i) the recovery of half of the oyster population that existed in the past would act as an effective top-down control on the phytoplankton community; (ii) using clearance rate measurements is recommended to select

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Role and Value of Nitrogen Regulation Provided by Oysters (Crassostrea virginica) in the Mission-Aransas Estuary, Texas, USA

Cited by 74 publications

References 50 publications

Carbon and Nitrogen Stocks and Below-Ground Allometry in Temperate Mangroves

Carbon and Nitrogen Stocks and Below-Ground Allometry in Temperate Mangroves

Integrating societal perspectives and values for improved stewardship of a coastal ecosystem engineer

Recovery of eutrophized marine ecosystems using the European flat oyster, Ostrea edulis

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