Fishers who rely on mangroves: Modelling and mapping the global intensity of mangrove-associated fisheries

Ermgassen, Philine S. E. zu; Mukherjee, Nibedita; Worthington, Thomas A.; Acosta, Alejandro; Araújo, Ana Rosa da Rocha; Beitl, Christine M.; Castellanos‐Galindo, Gustavo A.; Cunha-Lignon, Marília; Dahdouh‐Guebas, Farid; Diele, Karen; Parrett, Cara L.; Dwyer, Patrick G.; Gair, J. R.; Johnson, Andrew F.; Kuguru, Baraka; Lobo, Aaron Savio; Loneragan, N.R.; Longley-Wood, Kate; Mendonça, Jocemar Tomasino; Meynecke, Jan Olaf; Mandal, Roland Nathan; Munga, Cosmas N.; Reguero, Borja G.; Rönnbäck, Patrik; Thorley, Julia; Wolff, Matthias; Spalding, Mark

doi:10.1016/j.ecss.2020.106975

Cited by 50 publications

(30 citation statements)

References 67 publications

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“…One such ecosystem is mangrove forests, which have witnessed an elevated rate of loss compared to terrestrial forests over the past decades [1] with regional losses exceeding 3%, driven by anthropogenic disturbances [1][2][3] such as conversion to aquaculture [4] or agriculture [5], urban expansion [6], oil palm plantations [7], and climate change [8]. Mangrove forests support a large number of ecosystem services [9], such as carbon storage and sequestration [10], coastal protection [11], food production [9], and tourism [12]. The ecosystem services of tidal mangroves and marshes were estimated to be worth 193,843 USD per hectare per year for 2007, equating to 25 trillion USD annually [13].…”

Section: Introductionmentioning

confidence: 99%

Global Mangrove Watch: Updated 2010 Mangrove Forest Extent (v2.5)

Bunting

Rosenqvist²,

Hilarides

et al. 2022

Remote Sensing

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This study presents an updated global mangrove forest baseline for 2010: Global Mangrove Watch (GMW) v2.5. The previous GMW maps (v2.0) of the mangrove extent are currently considered the most comprehensive available global products, however areas were identified as missing or poorly mapped. Therefore, this study has updated the 2010 baseline map to increase the mapping quality and completeness of the mangrove extent. This revision resulted in an additional 2660 km2 of mangroves being mapped yielding a revised global mangrove extent for 2010 of some 140,260 km2. The overall map accuracy was estimated to be 95.1% with a 95th confidence interval of 93.8–96.5%, as assessed using 50,750 reference points located across 60 globally distributed sites. Of these 60 validation sites, 26 were located in areas that were remapped to produce the v2.5 map and the overall accuracy for these was found to have increased from 82.6% (95th confidence interval: 80.1–84.9) for the v2.0 map to 95.0% (95th confidence interval: 93.7–96.4) for the v2.5 map. Overall, the improved GMW v2.5 map provides a more robust product to support the conservation and sustainable use of mangroves globally.

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Section: Introductionmentioning

confidence: 99%

Global Mangrove Watch: Updated 2010 Mangrove Forest Extent (v2.5)

Bunting

Rosenqvist²,

Hilarides

et al. 2022

Remote Sensing

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show abstract

“…Despite being relatively small in global area, mangrove forests sequester disproportionally large amounts of carbon dioxide, generating growing interest in their conservation and restoration for climate change mitigation and adaptation 141 . Mangrove forests also provide multiple co-benefits, including supporting small-scale fisheries 142 , protecting coastal communities 143 , and for tourism and recreation 144 . Mangrove restoration has been attempted pan-tropically, ranging from community projects restoring a few square metres to large-scale planting of millions of propagules.…”

Section: Box 2 Mangrove Restorationmentioning

confidence: 99%

Upscaling tropical restoration to deliver environmental benefits and socially equitable outcomes

Edwards

Cerullo

Chomba³

et al. 2021

Current Biology

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The UN Decade on Ecosystem Restoration offers immense potential to return hundreds of millions of hectares of degraded tropical landscapes to functioning ecosystems. Well-designed restoration can tackle multiple Sustainable Development Goals, driving synergistic benefits for biodiversity, ecosystem services, agricultural and timber production, and local livelihoods at large spatial scales. To deliver on this potential, restoration efforts must recognise and reduce trade-offs among objectives, and minimize competition with food production and conservation of native ecosystems. Restoration initiatives also need to confront core environmental challenges of climate change and inappropriate planting in savanna biomes, be robustly funded over the long term, and address issues of poor governance, inadequate land tenure, and sociocultural disparities in benefits and costs. Tackling these issues using the landscape approach is vital to realising the potential for restoration to break the cycle of land degradation and poverty, and deliver on its core environmental and social promises. ll

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“…The trophic imbalance of mangrove fish communities and combined adverse effects will continue to affect ecosystem health and reduce ecosystem stability [ 22 ]. Approximately 4.1 million people work in mangrove-related fishery, of which Asia has the highest fishing intensity [ 23 ]. Although research on Chinese mangrove fish has been initiated, it is typically limited to small areas, for example, Hainan Wenchang [ 24 ], Quanzhou Bay [ 25 ], Beilun Estuary [ 26 ], Maowei Sea [ 27 ]; however, large-scale processes, structures, and changes in Chinese mangrove waters are unclear.…”

Section: Introductionmentioning

confidence: 99%

Distribution Pattern of Mangrove Fish Communities in China

Zhao

Wang

et al. 2022

Biology

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Mangroves are among the most productive marine and coastal ecosystems and play an important role in maintaining the stability and diversity of fish communities. To explore the structure of mangrove fish communities in China, we compiled previous studies, monographs, and two databases on 54 mangrove areas published in the past 30 years. Mangrove fish communities in China comprised Osteichthys (597 species) and Chondrichthyes (14 species), representing 611 species in 344 genera, 117 families, and 28 orders. Perciformes were the predominant taxon, with 350 species in 52 families, accounting for 57% of the total species richness. Reef fish accounted for 29.62%. With regard to feeding groups, there were 328 carnivorous species (53.68%), 214 omnivorous species (35.02%), 41 herbivorous species (6.71%), and 28 detritivores species (4.58%). Classified by body size, 57.61% were small-sized, 24.22% medium-sized, and 18.17% were large-sized fishes. A total of 5.23% (32 species) of these mangrove fish are currently on IUCN red lists, i.e., 2 species are critically endangered, 4 are endangered, 12 are vulnerable, and 14 are near threatened. Cluster analyses shows that Chinese mangroves fish were divided into two categories, i.e., coastal mangrove and island mangrove type. This is closely related to the distribution of reef fish. Moreover, the number of fish species showed a strong positive correlation with mangrove area, but not with latitude. The main reasons may be the subtropical and tropical geographic locations, as well as the characteristics of the South China Sea and the Taiwan Warm Current. The size and integrity of mangrove area are crucial to the local ecosystems; thus, protecting and restoring mangroves is of great significance to large-scale ecosystem-stability and local biodiversity.

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Fishers who rely on mangroves: Modelling and mapping the global intensity of mangrove-associated fisheries

Cited by 50 publications

References 67 publications

Global Mangrove Watch: Updated 2010 Mangrove Forest Extent (v2.5)

Global Mangrove Watch: Updated 2010 Mangrove Forest Extent (v2.5)

Upscaling tropical restoration to deliver environmental benefits and socially equitable outcomes

Distribution Pattern of Mangrove Fish Communities in China

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