Assessment of restoration success in a transplanted seagrass bed based on isotopic niche metrics

Park, Hyun Je; Park, Tae Hee; Kang, Hee Yoon; Lee, Kun‐Seop; Kim, Young Kyun; Kang, Chang‐Keun

doi:10.1016/j.ecoleng.2021.106239

Cited by 9 publications

(6 citation statements)

References 47 publications

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“… 2021 ) and in Korea ( Zostera marina ), stable isotope measures showed that food web structure between restored and reference beds were indistinguishable from one another 2 yr post‐transplanting (Park et al. 2021 ). Similar studies that assess both biological and biogeochemical functions are needed to gain a full understanding of ecosystem services gained from seagrass restoration.…”

Section: Introductionmentioning

confidence: 99%

“…More recently Orth et al (2020) used large-scale seeding (70+ million seeds) to restore seagrass in Virginia's recruitmentlimited coastal lagoons, where seagrass had been absent for over 70 yr. Over the past two decades, restored habitats in the coastal lagoons continued to expand and resulted in the recovery of multiple ecosystem services and even a related restoration of commercially harvested bay scallops (Orth et al 2020). In Australia's restored and reference seagrass (Amphibolis antarctica) beds, infauna abundance, belowground biomass, and sediment grain size converged within approximately 2-6 yr (Tanner et al 2021) and in Korea (Zostera marina), stable isotope measures showed that food web structure between restored and reference beds were indistinguishable from one another 2 yr post-transplanting (Park et al 2021). Similar studies that assess both biological and biogeochemical functions are needed to gain a full understanding of ecosystem services gained from seagrass restoration.…”

Section: Introductionmentioning

confidence: 99%

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Rapid enhancement of multiple ecosystem services following the restoration of a coastal foundation species

Beheshti

Williams

Boyer

et al. 2021

Ecological Applications

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The global decline of marine foundation species (kelp forests, mangroves, salt marshes, and seagrasses) has contributed to the degradation of the coastal zone and threatens the loss of critical ecosystem services and functions. Restoration of marine foundation species has had variable success, especially for seagrasses, where a majority of restoration efforts have failed. While most seagrass restorations track structural attributes over time, rarely do restorations assess the suite of ecological functions that may be affected by restoration. Here we report on the results of two small‐scale experimental seagrass restoration efforts in a central California estuary where we transplanted 117 0.25‐m2 plots (2,340 shoots) of the seagrass species Zostera marina. We quantified restoration success relative to persistent reference beds, and in comparison to unrestored, unvegetated areas. Within three years, our restored plots expanded ~8,500%, from a total initial area of 29 to 2,513 m2. The restored beds rapidly began to resemble the reference beds in (1) seagrass structural attributes (canopy height, shoot density, biomass), (2) ecological functions (macrofaunal species richness and abundance, epifaunal species richness, nursery function), and (3) biogeochemical functions (modulation of water quality). We also developed a multifunctionality index to assess cumulative functional performance, which revealed restored plots are intermediate between reference and unvegetated habitats, illustrating how rapidly multiple functions recovered over a short time period. Our comprehensive study is one of few published studies to quantify how seagrass restoration can enhance both biological and biogeochemical functions. Our study serves as a model for quantifying ecosystem services associated with the restoration of a foundation species and demonstrates the potential for rapid functional recovery that can be achieved through targeted restoration of fast‐growing foundation species under suitable conditions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rapid enhancement of multiple ecosystem services following the restoration of a coastal foundation species

Beheshti

Williams

Boyer

et al. 2021

Ecological Applications

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“…Seagrass transplantation is a method used to restore or mitigate seagrass losses resulting from human actions in coastal zones (Paling et al 2001; Park et al 2021). However, most of the required donor plants are collected from natural seagrass beds, which may not only have a significantly negative impact on the donor beds but also limit the large‐scale development of plant transplantation (van Katwijk et al 2009; Ferretto et al 2023).…”

Section: Discussionmentioning

confidence: 99%

Propagating eelgrass (Zostera marina) from cuttings in land–sea combination systems: a novel method to improve the sustainability of seagrass restoration

Zhang,

Zhao,

et al. 2024

Restoration Ecology

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The combination of a land‐based system and natural habitat can propagate donor plants from cuttings for use in seagrass restoration projects; however, the appropriate period for land‐based cultivation is unclear. Eelgrass (Zostera marina) cuttings were cultivated under different combinations of land‐based (0, 3, 6, 9, and 12 weeks) and natural habitat cultivation for 12 weeks. We measured survivorship, growth, productivity, leaf pigmentation, and carbohydrate concentration in eelgrass. Return on investment (defined as the number of ramets of Z. marina returned through input cultivation costs in the seagrass cultivation process) analysis suggested that the optimal period of land‐based cultivation for the propagation of Z. marina is 3.1–3.8 weeks. The ramet frequency of Z. marina exposed to a combination of land‐based cultivation (3 weeks) and natural habitat cultivation (9 weeks) was 1.4 times higher than that of plants cultivated in natural habitats for 12 weeks. The promotional effect of the combination of land‐based and natural habitat cultivation on Z. marina mainly depended on the increase in chlorophyll content and the accumulation and synthesis of nonstructural carbohydrates. The soluble sugar content of Z. marina leaves exposed to a combination of land‐based cultivation (3 weeks) and natural habitat cultivation (9 weeks) was 1.5 times higher than that of plants cultivated in natural habitats for 12 weeks. These results indicated that implementation of a controlled plant cultivation system and process to acquire abundant donor plants. This can help provide valuable data for the development of efficient artificial propagation technologies for Z. marina.

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“…Plant transplantation is a relatively mature method for seagrass bed restoration, which includes sod method, plug method, and rhizome method (Park and Lee, 2007;Lee and Park, 2008). The transplants of donor plants could produce plenty of lateral branches through clonal reproduction, which would increase obviously the plant density and biomass of the seagrass beds (Li et al, 2021a;Park et al, 2021). However, the required donor plants are mostly collected from natural seagrass beds, which may not only have a great negative impact on the donor beds, but also limit the largescale development of plant transplantation.…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Prolonged Light Durations on Survival, Growth and Physiology of the Eelgrass Zostera marina

Zhang

Wu³

et al. 2022

Front. Environ. Sci.

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Prolongation of light duration is one of the effective methods to improve the current seagrass propagation technique. We subjected plants of eelgrass Zostera marina to different prolonged light durations [0 (control), 2, 4, 6, 8 h d−1] for 6 weeks under controlled laboratory conditions. We measured plant response in terms of survivorship, growth, productivity, leaf pigment and carbohydrate concentrations. Survival analysis combined with growth assessment suggested that the optimum range of prolonged light durations for the establishment of Z. marina plants is 3.9–4.6 h d−1. The propagation coefficient of Z. marina plants exposed to 4 h d−1 was 1.4 times higher than that of plants under the control. Pearson and Mantel correlation analysis indicated that the promotion of prolonged light duration to the survival and growth of Z. marina plants mainly depended on the increase of chlorophyll content and the accumulation and synthesis of non-structural carbohydrate. The total chlorophyll content of leaves and soluble sugar content of aboveground tissues of Z. marina plants exposed to 4 h d−1 were 1.6 times and 2.9 times higher than those of plants under the control, respectively. The results will provide data that could prove helpful in the development of efficient artificial propagation technology of Z. marina plants.

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Assessment of restoration success in a transplanted seagrass bed based on isotopic niche metrics

Cited by 9 publications

References 47 publications

Rapid enhancement of multiple ecosystem services following the restoration of a coastal foundation species

Rapid enhancement of multiple ecosystem services following the restoration of a coastal foundation species

Propagating eelgrass (Zostera marina) from cuttings in land–sea combination systems: a novel method to improve the sustainability of seagrass restoration

Effects of Different Prolonged Light Durations on Survival, Growth and Physiology of the Eelgrass Zostera marina

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