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dc.contributor.authorBarnes, DKA
dc.contributor.authorBell, JB
dc.contributor.authorBridges, AE
dc.contributor.authorIreland, L
dc.contributor.authorHowell, KL
dc.contributor.authorMartin, SM
dc.contributor.authorSands, CJ
dc.contributor.authorMora Soto, A
dc.contributor.authorSouster, T
dc.contributor.authorFlint, G
dc.contributor.authorMorley, SA
dc.date.accessioned2022-01-18T12:13:33Z
dc.date.issued2021-12-16
dc.identifier.issn2079-7737
dc.identifier.issn2079-7737
dc.identifier.other1339
dc.identifier.urihttp://hdl.handle.net/10026.1/18572
dc.description.abstract

<jats:p>Carbon-rich habitats can provide powerful climate mitigation if meaningful protection is put in place. We attempted to quantify this around the Tristan da Cunha archipelago Marine Protected Area. Its shallows (&lt;1000 m depth) are varied and productive. The 5.4 km2 of kelp stores ~60 tonnes of carbon (tC) and may export ~240 tC into surrounding depths. In deep-waters we analysed seabed data collected from three research cruises, including seabed mapping, camera imagery, seabed oceanography and benthic samples from mini-Agassiz trawl. Rich biological assemblages on seamounts significantly differed to the islands and carbon storage had complex drivers. We estimate ~2.3 million tC are stored in benthic biodiversity of waters &lt;1000 m, which includes &gt;0.22 million tC that can be sequestered (the proportion of the carbon captured that is expected to become buried in sediment or locked away in skeletal tissue for at least 100 years). Much of this carbon is captured by cold-water coral reefs as a mixture of inorganic (largely calcium carbonate) and organic compounds. As part of its 2020 Marine Protection Strategy, these deep-water reef systems are now protected by a full bottom-trawling ban throughout Tristan da Cunha and representative no take areas on its seamounts. This small United Kingdom Overseas Territory’s reef systems represent approximately 0.8 Mt CO2 equivalent sequestered carbon; valued at &gt;£24 Million GBP (at the UN shadow price of carbon). Annual productivity of this protected standing stock generates an estimated £3 million worth of sequestered carbon a year, making it an unrecognized and potentially major component of the economy of small island nations like Tristan da Cunha. Conservation of near intact habitats are expected to provide strong climate and biodiversity returns, which are exemplified by this MPA.</jats:p>

dc.format.extent1339-1339
dc.format.mediumElectronic
dc.languageen
dc.language.isoen
dc.publisherMDPI AG
dc.subjectblue carbon
dc.subjectmarine protected area
dc.subjectclimate change
dc.subjectclimate mitigation
dc.subjectbiodiversity
dc.titleClimate Mitigation through Biological Conservation: Extensive and Valuable Blue Carbon Natural Capital in Tristan da Cunha’s Giant Marine Protected Zone
dc.typejournal-article
dc.typeArticle
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/34943254
plymouth.issue12
plymouth.volume10
plymouth.publisher-urlhttp://dx.doi.org/10.3390/biology10121339
plymouth.publication-statusPublished online
plymouth.journalBiology
dc.identifier.doi10.3390/biology10121339
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
plymouth.organisational-group/Plymouth/Users by role/Researchers in ResearchFish submission
dc.publisher.placeSwitzerland
dcterms.dateAccepted2021-12-09
dc.rights.embargodate2022-1-19
dc.identifier.eissn2079-7737
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.3390/biology10121339
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2021-12-16
rioxxterms.typeJournal Article/Review


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