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Ascension Island Valuation of carbon storage, sequestration and social cost by benthos in Ascension Island’s EEZ 2019

Marine Overseas Territories Accumulation Asset Biological Carbon sequestration Climate regulation Ecosystem Regulating services Sequestration Storage

Abstract

As it grows and reproduces life on seabeds (benthos) accumulates carbon and is a major source of carbon storage, termed ‘blue carbon’. Through long-term aging, burial and ultimately conversion to rock, benthos removes carbon from cycling (between air and water), referred to as sequestration. We used seabed mapping, seabed camera imagery and collections of seabed life to estimate how much carbon is being stored by benthos in water shallower than 1000 m deep in Ascension Island’s Exclusive Economic Zone. This essentially comprises of coastal waters around Ascension Island and three seamounts (Harris-Stewart, Grattan and Un-named).

Resource type Publication

Topic category Environment

Reference date 2019·03·01

Citation
Barnes, DKA., Sands, CJ., and Smith, N. (2019) Valuation of carbon storage, sequestration and social cost by benthos in Ascension Island’s EEZ.

Lineage
Refer to report

Responsible organisation
Communications, JNCC distributor

Limitations on public access Open Access

Use constraints Open, cite source of data

Metadata date 2019·08·20

Metadata point of contact
Communications, JNCC

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