Restoring mangrove biodiversity: can restored mangroves support fish assemblages comparable to natural mangroves over time? DOI Creative Commons
Mark Ram, Marcus Sheaves, Nathan J. Waltham

et al.

Restoration Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Despite the recent global increase in mangrove restoration efforts, our understanding of outcomes and recovery biodiversity re‐establishing functionality, such as productive fish habitat, is limited due to lack long‐term monitoring. Here, we used a space‐for‐time approach investigate whether restored mangroves attain similar communities natural same age (5–11 years old). Fish forests along Guyana coastline, South America, were sampled using trammel nets collect data compare abundance, species richness, biomass. This study found no notable differences assemblages between ages. Nonmetric multidimensional scaling (NMDS), analysis similarities (ANOSIM), similarity percentage (SIMPER) revealed high overlap composition habitats, age, seasons, diel cycle. There was clear trajectory biomass, which indciates that quickly colonized habitats. Our provides evidence success projects yielding positive ecological benefits habitat. information useful for practitioners when setting goals timelines habitat after restoration.

Language: Английский

Global Mangrove Extent Change 1996–2020: Global Mangrove Watch Version 3.0 DOI Creative Commons
Peter Bunting, Åke Rosenqvist, Lammert Hilarides

et al.

Remote Sensing, Journal Year: 2022, Volume and Issue: 14(15), P. 3657 - 3657

Published: July 30, 2022

Mangroves are a globally important ecosystem that provides wide range of system services, such as carbon capture and storage, coastal protection fisheries enhancement. have significantly reduced in global extent over the last 50 years, primarily result deforestation caused by expansion agriculture aquaculture environments. However, limited number studies attempted to estimate changes mangrove extent, particularly into 1990s, despite much loss occurring pre-2000. This study has used L-band Synthetic Aperture Radar (SAR) mosaic datasets from Japan Aerospace Exploration Agency (JAXA) for 11 epochs 1996 2020 develop long-term time-series change. The map-to-image approach change detection where baseline map (GMW v2.5) was updated using thresholding contextual mask. applied between all image-date pairs producing 10 maps each epoch, which were summarised produce time-series. resulting had an estimated accuracy 87.4% (95th conf. int.: 86.2–88.6%), although accuracies individual gain classes lower at 58.1% (52.4–63.9%) 60.6% (56.1–64.8%), respectively. Sources error included misregistration SAR datasets, could only be partially corrected for, but also confusion fragmented areas mangroves, around ponds. Overall, 152,604 km2 (133,996–176,910) mangroves identified 1996, with this decreasing −5245 (−13,587–1444) total 147,359 (127,925–168,895) 2020, representing 3.4% 24-year time period. Global Mangrove Watch Version 3.0 represents most comprehensive record achieved date is expected support activities, including ongoing monitoring environment, defining assessments progress toward conservation targets, protected area planning risk ecosystems worldwide.

Language: Английский

Citations

255
Mangrove reforestation provides greater blue carbon benefit than afforestation for mitigating global climate change DOI Creative Commons
Shanshan Song, Yali Ding, Wei Li

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Feb. 10, 2023

Significant efforts have been invested to restore mangrove forests worldwide through reforestation and afforestation. However, blue carbon benefit has not compared between these two silvicultural pathways at the global scale. Here, we integrated results from direct field measurements of over 370 restoration sites around world show that (reestablishing mangroves where they previously colonized) had a greater storage potential per hectare than afforestation (establishing mangrove). Greater accumulation was mainly attributed favorable intertidal positioning, higher nitrogen availability, lower salinity most sites. Reforestation all physically feasible areas in deforested regions could promote uptake 671.5-688.8 Tg CO2-eq globally 40-year period, 60% more afforesting same area on tidal flats (more marginal sites). Along with avoiding conflicts habitat conversion, should be given priority when designing nature-based solutions for mitigating climate change.

Language: Английский

Citations

121
A Review of Spectral Indices for Mangrove Remote Sensing DOI Creative Commons
Thuong V. Tran, Ruth Reef, Xuan Zhu

et al.

Remote Sensing, Journal Year: 2022, Volume and Issue: 14(19), P. 4868 - 4868

Published: Sept. 29, 2022

Mangrove ecosystems provide critical goods and ecosystem services to coastal communities contribute climate change mitigation. Over four decades, remote sensing has proved its usefulness in monitoring mangrove on a broad scale, over time, at lower cost than field observation. The increasing use of spectral indices led an expansion the geographical context studies from local-scale intercontinental global analyses past 20 years. In sensing, numerous derived multiple bands remotely sensed data have been developed used for mangroves. this paper, we review range produced utilised between 1996 2021. Our findings reveal that variety aspects but excluded identification species. included are extent, distribution, above ground parameters (e.g., carbon density, biomass, canopy height, estimations LAI), changes aforementioned time. Normalised Difference Vegetation Index (NDVI) was found be most widely applied index mangroves, 82% reviewed, followed by Enhanced (EVI) 28% studies. Development application potential cover characterisation increased (currently 6 published), NDVI remains popular sensing. Ultimately, identify limitations gaps current suggest some future directions under topic connection time series imagery fusion optical sensors digital era.

Language: Английский

Citations

110
Ocean alkalinity enhancement through restoration of blue carbon ecosystems DOI Creative Commons
Mojtaba Fakhraee, Noah J. Planavsky, Christopher T. Reinhard

et al.

Nature Sustainability, Journal Year: 2023, Volume and Issue: 6(9), P. 1087 - 1094

Published: May 29, 2023

Abstract Blue carbon ecosystems provide a wide range of ecosystem services, are critical for maintaining marine biodiversity and may potentially serve as sites economically viable dioxide removal through enhanced organic storage. Here we use biogeochemical simulations to show that restoration these can also lead permanent by driving ocean alkalinity enhancement atmosphere-to-ocean CO 2 fluxes. Most notably, our findings suggest restoring mangroves, which common in tropical shallow settings, will notable local across scenarios. Enhanced production is linked increased rates anaerobic respiration dissolution calcium carbonate within sediments. This work provides further motivation pursue feasible blue projects basis incorporating inorganic regulatory economic incentivization restoration.

Language: Английский

Citations

50
Coastal blue carbon in China as a nature-based solution toward carbon neutrality DOI Creative Commons
Faming Wang, Jihua Liu, Guoming Qin

et al.

The Innovation, Journal Year: 2023, Volume and Issue: 4(5), P. 100481 - 100481

Published: July 21, 2023

To achieve the Paris Agreement, China pledged to become "Carbon Neutral" by 2060s. In addition massive decarbonization, this would require significant changes in ecosystems toward negative CO

Language: Английский

Citations

49
Microbial diversity and keystone species drive soil nutrient cycling and multifunctionality following mangrove restoration DOI
Minjie Hu, Jordi Sardans, Dongyao Sun

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 251, P. 118715 - 118715

Published: March 14, 2024

Language: Английский

Citations

47
Shrimp farming industry in Vietnam: An aquaculture performance indicators approach DOI
Thong Quoc Ho, Huu-Luat Do, Håkan Eggert

et al.

Aquaculture Economics & Management, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 24

Published: Jan. 7, 2025

This study evaluates the Vietnamese shrimp farming industry through a Triple Bottom Line (TBL) perspective, using Aquaculture Performance Indicators (API) to assess social, economic, and environmental performance. Over past 25 years, has grown rapidly diversified into four systems: Extensive, Semi-intensive, Intensive, Super-intensive, data is collected for all these systems. The results reveal that Intensive Super-intensive systems perform well economically, while Extensive Semi-intensive have weaker Social performance relatively similar across Managerial returns are high systems, with labor notably higher in intensive With respect performance, farms score poorly, whereas extensive well. Key challenges intensity levels include water use effluent management, contributing disease prevalence. While mangrove forest degradation was historical issue, replanting efforts increased cover, albeit reduced biodiversity. On global scale, Vietnam's aligns averages but outperforming significantly post-production practices.

Language: Английский

Citations

3
A New Global Mangrove Height Map with a 12 meter spatial resolution DOI Creative Commons
Marc Simard, Temilola Fatoyinbo, Nathan Thomas

et al.

Scientific Data, Journal Year: 2025, Volume and Issue: 12(1)

Published: Jan. 4, 2025

Abstract Mangrove forests thrive along global tropical coasts, acting as a barrier that protects coastlines against storm surges and nurseries for an entire food web. They are also known their high carbon sequestration rates soil stocks. We introduce new mangrove canopy height map generated from TanDEM-X spaceborne elevation measurements collected during the 2011–2013 period with 12-meter spatial resolution accuracy of 2.4 meters (RMSE). Height was calibrated validated using GEDI mission data independently verified airborne Lidar. The tallest stands reach nearly 60 in Colombia Gabon, potentially other countries. captures broader range heights finer details than available products use optical imagery. This dataset can aid evaluating ecosystem services at local regional scales, improving our understanding factors controlling structure, supporting conservation, climate mitigation adaptation strategies.

Language: Английский

Citations

2
Blue carbon drawdown by restored mangrove forests improves with age DOI
Paul E. Carnell, Maria M. Palacios, Paweł Waryszak

et al.

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 306, P. 114301 - 114301

Published: Jan. 13, 2022

Language: Английский

Citations

54
Quantifying the Reporting, Coverage and Consistency of Key Indicators in Mangrove Restoration Projects DOI Creative Commons
Yasmine Gatt, Dominic A. Andradi‐Brown, Gabby N. Ahmadia

et al.

Frontiers in Forests and Global Change, Journal Year: 2022, Volume and Issue: 5

Published: May 16, 2022

Mangroves are often cleared for aquaculture, agriculture, and coastal development despite the range of benefits people nature that they provide. In response to these losses, there multiple global, regional efforts aimed at accelerating mangrove forest restoration, resulting in many restoration projects being implemented managed by different groups with highly diverse objectives. The information reported from is extremely variable, limiting our ability identify whether desired objectives have been met or key factors determine effective durable applied. To address this problem, we developed a holistic monitoring framework captures indicators spanning project aims, intervention type, costs, ecological socioeconomic outcomes. Subsequently, using systematic literature search, examined 123 published case studies quality on relative framework. We found were gaps reporting, indicators. Sections related site conditions prior (reported only 32% studies) outcomes (26%) consistently missing most reporting. Conversely, type was all studies, aims 76% (82%) far more prevalent. Generally, did not follow any specific terms reporting which likely contributed recorded. These hinder comparisons between inhibiting learn lessons previous attempts identifying commonalities. need structure consistent supports standard tracking tool can facilitate comparison efforts, aiding implementation future projects.

Language: Английский

Citations

49