Using Melaleuca fences as soft coastal engineering for mangrove restoration in Kien Giang, Vietnam

Cuong, Chu Van; Brown, Sharon; To, Huynh Huu; Hockings, Marc

doi:10.1016/j.ecoleng.2015.04.031

Cited by 56 publications

(35 citation statements)

References 30 publications

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“…Hydrodynamics have often been suggested as the most important limiting factor for the establishment of self‐sustainable ecosystems (mussels: Capelle et al 2014; de Paoli et al 2015, seagrass: Infantes et al 2011, saltmarsh: Möller et al 2014, mangroves: Van Cuong et al 2015). In our experiment, the transplanted mussel beds had to endure a summer storm right after transplantation, shortly followed by two subsequent storms in the following weeks.…”

Section: Discussionmentioning

confidence: 99%

Restoring mussel beds in highly dynamic environments by lowering environmental stressors

Schotanus

Paree

Fivash

et al. 2020

Restoration Ecology

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Restoration of coastal ecosystem engineers that trap sediment and dampen waves has proven to be difficult, especially in the wave-exposed and eroding areas where they are needed the most. Environmental stressors, such as hydrodynamic stress and predation, can only be overcome if transplanted organisms are able to establish self-facilitating feedbacks. We investigate if the artificial lowering of multiple environmental stressors can be used to give transplanted juveniles the opportunity to form a self-sustainable system and thereby increase their long-term survival on wave-exposed and eroding shores. We designed a large field experiment using juvenile mussels (Mytilus edulis) as model species on a wave-exposed tidal flat in the Oosterschelde estuary (the Netherlands). We tested if the environmental stress caused by a high predation pressure and wave-driven dislodgement could be reduced by a combination of artificial structures such as fences (to exclude predatory crabs), attachment substrates (such as coir-net or oyster shells), and breakwaters. Despite a low overall mussel survival (29%), we found that under strong hydrodynamic conditions, experimental fences and attachment substrates increased the retention of transplanted mussel seed. However, modification of local hydrodynamic conditions using breakwaters did not improve mussel coverage preservation. Overall, this study highlights the potential of using techniques that lower multiple environmental stressors to create a window of opportunity for establishment in highly dynamic ecosystems.

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Section: Discussionmentioning

confidence: 99%

Restoring mussel beds in highly dynamic environments by lowering environmental stressors

Schotanus

Paree

Fivash

et al. 2020

Restoration Ecology

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“…Other environmental advantage relates to restoration; in this context, Salicornia has been studied under different factors as fresh vegetable and valuable oilseed, additionally, the setting up of a Salicornia plantation on coastal land has a real potential to sustainably restore affected or threatened mangroves forests [49]. There have been reports of successful projects of mangroves afforestation, and other failed attempts [50]. A former research studied critical factors as to understand the hydrologic patterns of the site's tide (depth, duration, and frequency of tidal flooding) for establishing and growing mangrove species to successfully restore this ecosystem [51].…”

Section: Discussionmentioning

confidence: 99%

Environmental and Management Considerations for Adopting the Halophyte Salicornia bigelovii Torr. as a Sustainable Seawater-Irrigated Crop.

Garza‐Torres

Troyo-Diéguez²,

Nieto‐Garibay³

et al. 2020

Sustainability

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Salicornia bigelovii Torr. is a potential new crop for coastal and saline lands, because of the oil content of its seeds, its properties as fresh vegetable, forage, and other uses. As a true halophyte, it can grow with seawater irrigation. The aim of this study was to determine the phenology and water requirements of Salicornia as a new plant resource in growing areas for salt-tolerant crops in coastal and saline lands, and elucidate scenarios of sustainability about these issues. Water requirements were estimated in experimental plots on the coastal line and fulfilled with drip irrigation connected to seawater aquaculture discharge ponds, 30 m from the sea. The recorded phenological events were germination, flowering, fructification, maturation, and physiological death. Results reflect the difficulty to adopt it as a new crop because of its long-life cycle, around nine months, contrasting with the life cycle of common crops, from three to four months. Irrigation needs reached a depth of 240 cm, significantly exceeding those of conventional crops. Such limitations are highlighted, but also its potential use as a biofilter of coastal aquaculture effluents, being a productive target-biomass, feasible to be used as a dual-purpose use of water and energy required in aquaculture farms.

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“…More commonly, a hybrid eco-engineering approach to mangrove restoration was reported (Table S3). This involved planting in combination with a breakwater to facilitate sediment accumulation and wave attenuation for mangrove establishment (Hashim, Kamali, Tamin, & Zakaria, 2010;Motamedi, Hashim, Zakaria, Song, & Sofawi, 2014;Van Cuong, Brown, To, & Hockings, 2015). Although there are no studies on shoreline protection provided by seagrass and kelp restoration, tests of an artificial seaweed bed installed to promote build-up of a beach in the United Kingdom showed some accretion over its lifespan.…”

Section: Shoreline Responsementioning

confidence: 99%

“…tion for mangrove establishment(Hashim, Kamali, Tamin, & Zakaria, 2010;Motamedi, Hashim, Zakaria, Song, & Sofawi, 2014;Van Cuong, Brown, To, & Hockings, 2015). Although there are no studies on shoreline protection provided by seagrass and kelp restoration,…”

mentioning

confidence: 99%

From grey to green: Efficacy of eco‐engineering solutions for nature‐based coastal defence

Morris

Konlechner

Ghisalberti

et al. 2018

Global Change Biology

289

150

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Climate change is increasing the threat of erosion and flooding along coastlines globally. Engineering solutions (e.g. seawalls and breakwaters) in response to protecting coastal communities and associated infrastructure are increasingly becoming economically and ecologically unsustainable. This has led to recommendations to create or restore natural habitats, such as sand dunes, saltmarsh, mangroves, seagrass and kelp beds, and coral and shellfish reefs, to provide coastal protection in place of (or to complement) artificial structures. Coastal managers are frequently faced with the problem of an eroding coastline, which requires a decision on what mitigation options are most appropriate to implement. A barrier to uptake of nature-based coastal defence is stringent evaluation of the effectiveness in comparison to artificial protection structures. Here, we assess the current evidence for the efficacy of nature-based vs. artificial coastal protection and discuss future research needs. Future projects should evaluate habitats created or restored for coastal defence for cost-effectiveness in comparison to an artificial structure under the same environmental conditions. Cost-benefit analyses should take into consideration all ecosystem services provided by nature-based or artificial structures in addition to coastal protection. Interdisciplinary research among scientists, coastal managers and engineers is required to facilitate the experimental trials needed to test the value of these shoreline protection schemes, in order to support their use as alternatives to artificial structures. This research needs to happen now as our rapidly changing climate requires new and innovative solutions to reduce the vulnerability of coastal communities to an increasingly uncertain future.

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Using Melaleuca fences as soft coastal engineering for mangrove restoration in Kien Giang, Vietnam

Cited by 56 publications

References 30 publications

Restoring mussel beds in highly dynamic environments by lowering environmental stressors

Restoring mussel beds in highly dynamic environments by lowering environmental stressors

Environmental and Management Considerations for Adopting the Halophyte Salicornia bigelovii Torr. as a Sustainable Seawater-Irrigated Crop.

From grey to green: Efficacy of eco‐engineering solutions for nature‐based coastal defence

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