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  • Mariana Lima

Mariana Lima

Mariana was awarded the University of Brighton’s International Research Scholarship and is currently undergoing her PhD on the impacts of climate change in seagrass ecosystem’s carbon pools. Mariana graduated with the equivalent of a first-class honours BSc in Biological Sciences – Marine Biology degree, from the Federal University of Rio de Janeiro in 2006. She was awarded a two-year bursary from the Brazilian’s National Council for Scientific and Technological Development for her MSc in Freshwater Biology and Inland Fisheries, at the National Institute of Amazon Researches, graduated in 2009. Mariana had been working in the private sector with environmental management ever since, and that’s what prompted her to pursue her doctoral degree.

Email address: M.Lima@brigton.ac.uk

Qualification: PhD

Timeframe: 2016 - 2019

Mariana-Lima

Thesis title

‘Blue Carbon’ in Seagrass Meadows: Impacts of recent climatic changes on carbon sequestration, biomass and greenhouse gas emissions.

My research

Blue carbon research has been pointed out as a promising alternative to mitigate the effects of climate change. Carbon captured by seagrass ecosystems can persist stored in their sediments for long periods of time, up to millennia, contributing significantly to the net removal of global atmospheric CO2. However, land use change, erosion, and anthropogenic degradation processes have potentially threatened the environmental role of these coastal ecosystems. Sustainable management of blue carbon coastal wetlands is key to avoid the turnover of their carbon rich sediments into potential carbon sources.

The purpose of my study is to assess how carbon sequestration and storage in seagrass ecosystems in the UK have been influenced by recent climatic change, as well as present comparable carbon storage and sequestration data for seagrass meadows. My results will provide conclusive and original data to increase understanding of the importance of Southern UK’s temperate seagrass meadows as carbon sinks.

The project will demonstrate the geochronological correlation between impacts of climate change related factors and seagrasses’s carbon sequestration and storage potential, as well as greenhouse gas emissions. Data collected will promote the inclusion of UK coastal habitats conservation in global carbon policies, as well as filling the gaps in scientific research on temperate seagrass meadows carbon storage and sequestration potential and GHG emissions.

Following an assessment of the UK Wildlife Trusts' most recent seagrass distribution inventory, my fieldwork sites have been selected within the Solent region, Southeast of England, and include Chichester Harbour, Southampton Water, the Isle of Wight and West Hampshire.

Supervisors

Dr Raymond Ward

Professor Chris Joyce

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