Valuation of coastal ecosystem services in the Large Marine Ecosystems of Africa

Trégarot, Ewan; Touron-Gardic, Grégoire; Cornet, Cindy; Failler, Pierre

doi:10.1016/j.envdev.2020.100584

Cited by 19 publications

(6 citation statements)

References 66 publications

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“…For the remaining types of services, in the absence of reliable data, method (c) was adopted. In fact, the benefits transfer method is the most popular among these methods, as evidenced by its use in recent large-scale studies (BOBLME 2014;Milon and Alvarez 2019;Trégarot et al 2020).…”

Section: Methodsmentioning

confidence: 99%

“…We mention a few of these here. Recently, Trégarot et al (2020) assessed the value of the mangroves, seagrass beds, coral reefs, and kelp forests of the whole African continent, across nine large marine ecosystems. They estimated the annual value of ecosystem services to be US$814 billion/year (at 2018 USD values) for four ecosystems-(a) coral reefs (US$588 billion/year); (b) seagrass (US$135 billion/year); (c) mangroves (US$91 billion/year); and (d) kelp (US$0.4 billion/year).…”

Section: Introductionmentioning

confidence: 99%

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Valuation of Marine and Coastal Ecosystem Services in India

K.S.

R.C.²,

Mukhopadhyay³

et al. 2022

Ecol. Econ. Soc.

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Coastal and marine ecosystems provide a host of services that are of vital importance to human well-being. We estimate the values of several provisioning, regulating, and recreational services using a combination of valuation methods. We find that the total value of these services in India was approximately ₹1.9 trillion (or US$0.11 trillion in purchase price parity [PPP] terms) in 2012–13, which constitutes about 2.4% of India’s net national product that year. Recreational services account for the largest share (45%), followed by regulating services (35%) and provisioning services (20%). These estimates do not include all the services provided by coastal and marine ecosystems; therefore, our estimates should be treated as a conservative underestimate of their total economic value. To the best of our knowledge, this is the first such attempt at the national level in India.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Valuation of Marine and Coastal Ecosystem Services in India

K.S.

R.C.²,

Mukhopadhyay³

et al. 2022

Ecol. Econ. Soc.

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“…Wild and cultured seaweeds play a significant role in provision of ecosystem services, such as habitat for other marine organisms, mitigation of climate change, localized control of ocean acidification and bioremediation for coastal pollution (3,22).Also, Seaweeds as an autotroph species, produce energy and food for itself due to the presence of the chlorophyll( 50) and provides food for other marine animal especially for herbivore that only eat herb such as other marine plant, algae and seagrass (36,50). Habitat such as mangrove, coral reef, and other marine habitat are given by seaweed (51,52). Brown algae can make a forest in the ocean.…”

Section: Provision Of Ecosystem Servicesmentioning

confidence: 99%

A Review on Seaweed Farming in Western Indian Ocean: Benefits and Challenges

RIPANDA,

Mtenga

2024

Preprint

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Seaweed farming in the Western Indian Ocean (WIO) is among the income-generating activities; apart from seaweeds being primary producers, they are foundation species important for marine ecosystem capable of modifying their surrounding abiotic and biotic environments. The WIO coast provides natural and necessary environments for seaweeds farming. In this review article seaweed farming in WIO was investigated; its contribution to provision of ecosystem services; medicinal and nutritional value; role of women; challenges and the wellbeing of farmers and the whole ecosystem. It was observed that among the challenges facing seaweed farmers include lack of modernized farming tools hence farmers use low depth areas leading to attack by diseases, death of seaweed, low yields, and income. Farmers has been reported to be affected by diseases which may be contributed by inadequate of use of protective gears, indicating the need for knowledge on personal protection. This may be contributed by lack of knowledge which leads to farmers participation without using protective equipment leading to contamination from toxic chemical compounds from seaweed, epiphytic bacteria or harmful algal bloom and absorbed heavy metals from seawater as a result of long-term exposure. Farming practices such as uprooting of seaweeds during farm preparation have been observed to cause degradation and decrease fish population. Therefore, there is the need for use of modern technologies; supervision of these activities by professionals in the field, and provision of knowledge to farmers for the sustainability of WIO marine ecosystem.

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“…This is despite clear evidence indicating that nearshore blue carbon ecosystems (mangroves and seagrasses) are interlinked, and either of them can provide an alternate “refuge” to associated biodiversity in cases of extreme change (Dencer‐Brown et al., 2022; Obura et al., 2022; Steven et al., 2019; Unsworth & Cullen, 2010). Understanding these relationships is important for the sustainable livelihoods of the local communities and in decision making by the resource managers (McKenzie et al., 2021; Menon & Pillai, 2015; Rahman & Yaakub, 2020; Sigsgaard et al., 2020; Trégarot et al., 2020). For effective management and sustainability of marine fisheries resources, information obtained from respective ecosystems, community interaction, and structure are essential for fish monitoring.…”

Section: Introductionmentioning

confidence: 99%

Integration of environmental DNA metabarcoding technique to reinforce fish biodiversity assessments in seagrass ecosystems: A case study of Gazi bay seagrass meadows

Mwamburi,

Uku,

Wambiji

et al. 2023

Environmental DNA

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Assessing biodiversity in marine nearshore ecosystems is crucial for effective management, especially in the context of climate change and overexploitation of marine resources. Conventional methods often fall short in providing comprehensive information for managing seagrass ecosystems. However, the emergence of environmental DNA (eDNA) techniques has transformed the field by enabling noninvasive surveys that are cost effective and provide detailed information with high resolution. In this study, we utilized eDNA to assess fish diversity and compared its effectiveness to conventional techniques such as catch assessment surveys and underwater surveys. We sampled three habitats (A: mangrove‐seagrass, B: seagrass only, and C: coral‐seagrass) with 4 replicates. Site A recorded 8 fish species, site B had 16 species, and site C, characterized by coral and seagrass habitats, exhibited the highest fish diversity with 45 species (mean H′ index = 2.455), underscoring its ecological importance. To ensure accurate taxonomic identification, we utilized an updated MiFish reference database containing a larger number of fish species compared to the initial library. This expanded reference database with 9569 fish species, facilitated more precise identification and enhanced the reliability of our findings. Notably, the eDNA technique outperformed conventional methods by detecting 23 additional fish species that went undetected using traditional surveys. Moreover, our study documented five fish species previously unknown to occur within the study region, further emphasizing the value of eDNA analysis in uncovering hidden biodiversity. These findings strongly advocate for integrating eDNA techniques into the monitoring and assessment of biodiversity in shallow tropical habitats of the Western Indian Ocean. By leveraging eDNA surveys, we can gain valuable insights into fish diversity, discover hidden species, and make informed decisions for the conservation and management of these ecologically significant areas.

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Valuation of coastal ecosystem services in the Large Marine Ecosystems of Africa

Cited by 19 publications

References 66 publications

Valuation of Marine and Coastal Ecosystem Services in India

Valuation of Marine and Coastal Ecosystem Services in India

A Review on Seaweed Farming in Western Indian Ocean: Benefits and Challenges

Integration of environmental DNA metabarcoding technique to reinforce fish biodiversity assessments in seagrass ecosystems: A case study of Gazi bay seagrass meadows

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