Evidence map›Paper›PMID 42224249›Full record

ArticlePloS one2026

Valuing conservation and natural wealth: The blue economy of manta ray watching in the Maldives.

Hannah M Moloney, Maria I Garcia Rojas, Nina Rothe, Asia O Armstrong, Kirsty Ballard, Florence Barraud, Farah Hamdan, Anthony J Richardson, Enas Mohamed Riyad, Tamaryn J Sawers and 2 more

Abstract read
In one paragraph

Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Hannah M MoloneyThe Manta Trust, Catemwood House, Norwood Lane, Corscombe, Dorset, United Kingdom.ORCID https://orcid.org/0009-0003-8509-8325
Maria I Garcia RojasThe Manta Trust, Catemwood House, Norwood Lane, Corscombe, Dorset, United Kingdom.ORCID https://orcid.org/0000-0002-6600-7294
Nina RotheThe Manta Trust, Catemwood House, Norwood Lane, Corscombe, Dorset, United Kingdom.ORCID https://orcid.org/0009-0009-2562-3515
Asia O ArmstrongIUCN SSC Shark Specialist Group, Dubai, United Arab Emirates.ORCID https://orcid.org/0000-0002-9307-0598
Kirsty BallardThe Manta Trust, Catemwood House, Norwood Lane, Corscombe, Dorset, United Kingdom.
Florence BarraudThe Manta Trust, Catemwood House, Norwood Lane, Corscombe, Dorset, United Kingdom.
Farah HamdanQueen's University Belfast, School of Biological Sciences, Northern Ireland, United Kingdom.ORCID https://orcid.org/0000-0003-0477-4655
Anthony J RichardsonSchool of the Environment, The University of Queensland, St Lucia, Queensland, Australia.
Enas Mohamed RiyadEnvironmental Regulatory Authority, Malé, Republic of Maldives.
Tamaryn J SawersThe Manta Trust, Catemwood House, Norwood Lane, Corscombe, Dorset, United Kingdom.ORCID https://orcid.org/0009-0004-2596-1681
Kathy A TownsendUniversity of the Sunshine Coast, School of Science, Technology and Engineering, Hervey Bay, Queensland, Australia.
Guy M W StevensThe Manta Trust, Catemwood House, Norwood Lane, Corscombe, Dorset, United Kingdom.ORCID https://orcid.org/0000-0002-2056-9830

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Amid declining manta ray populations globally, the well-established and growing manta ray tourism industries generate substantial economic benefits and aid protective legislation for these threatened elasmobranchs. As flagship species, manta rays are a drawcard for marine wildlife tourism and a gateway for engaging the public and communities in conservation. Healthy marine ecosystems are the key drivers of employment and economic sustainability for island nations such as the Maldives. However, there are many stakeholders competing for these shared resources, which can result in environmental degradation. Economic valuations are a powerful tool for justifying the conservation efforts of threatened species and natural areas, especially in light of competing stakeholders. Using tour operator surveys (n = 106) and data mining, this study provides an updated assessment of manta ray watching tourism in the Maldives and represents the first national valuation of its direct economic and socio-economic benefits. In 2021, manta ray tourism in the Maldives generated an estimated US$227.3 million, including US$39 million on manta ray focused diving and snorkelling excursions, and US$188.3 million in related tourist expenditure, representing 2.6% of the national Gross Domestic Product. This industry appears to have grown around 380% since 2008 (US$8.1 million) and manta ray watching is now offered by 80% of tourism operators nation-wide. Our findings revealed that manta rays hold intrinsic value and cultural significance within local communities. Acknowledging this, the flow-on benefits to the community extend beyond this industry, reaching local businesses, employed staff, and the government with the direct economic benefits of the manta ray tourism industry are estimated at over US$311 million per year. Such value highlights the significance of manta rays for the Maldives and the need for effective management centred on manta ray conservation to safeguard future prosperity and mitigate the potential impact of tourism on manta ray populations.

Indexed as

Conservation of Natural ResourcesSkates, FishTourismAnimalsEcosystemHumansMaldives

Identifiers

PMID42224249
PMCPMC13225372

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.