An approach for the identification of exemplar sites for scaling up targeted field observations of benthic biogeochemistry in heterogeneous environments.

Autor: Thompson CEL; Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH UK., Silburn B; 2Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, NR33 0HT UK., Williams ME; 3National Oceanography Centre, 6 Brownlow St, Liverpool, L3 5DA UK., Hull T; 2Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, NR33 0HT UK., Sivyer D; 2Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, NR33 0HT UK., Amoudry LO; 3National Oceanography Centre, 6 Brownlow St, Liverpool, L3 5DA UK., Widdicombe S; 4Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH UK., Ingels J; 4Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH UK., Carnovale G; 4Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH UK., McNeill CL; 4Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH UK., Hale R; Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH UK., Marchais CL; 5National Oceanography Centre, University of Southampton Waterfront Campus, European Way, Southampton, SO14 3ZH UK., Hicks N; Scottish Association for Marine Science, Scottish Marine Institute, Oban, Argyll, PA37 1QA UK., Smith HEK; 5National Oceanography Centre, University of Southampton Waterfront Campus, European Way, Southampton, SO14 3ZH UK., Klar JK; Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH UK.; LEGOS, University of Toulouse, IRDm CNES, CNRS, UPS, 14 av. Edouard Belin, 31400 Toulouse, France., Hiddink JG; 8School of Ocean Sciences, Bangor University, Menai Bridge, LL59 5AB UK., Kowalik J; Navama - Technology for Nature, Landshuter Allee 8, 80637 Munich, Germany., Kitidis V; 4Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH UK., Reynolds S; 10School of Earth and Environmental Sciences, University of Portsmouth, Burnaby Road, Portsmouth, PO1 3QL UK., Woodward EMS; 4Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH UK., Tait K; 4Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH UK., Homoky WB; 11Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3AN UK., Kröger S; 2Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, NR33 0HT UK., Bolam S; 2Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, NR33 0HT UK., Godbold JA; Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH UK.; 12Biological Sciences, University of Southampton, Life Sciences Building, Highfield, Southampton SO17 1BJ UK., Aldridge J; 2Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, NR33 0HT UK., Mayor DJ; 5National Oceanography Centre, University of Southampton Waterfront Campus, European Way, Southampton, SO14 3ZH UK., Benoist NMA; Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH UK., Bett BJ; 5National Oceanography Centre, University of Southampton Waterfront Campus, European Way, Southampton, SO14 3ZH UK., Morris KJ; 5National Oceanography Centre, University of Southampton Waterfront Campus, European Way, Southampton, SO14 3ZH UK., Parker ER; 2Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, NR33 0HT UK., Ruhl HA; 5National Oceanography Centre, University of Southampton Waterfront Campus, European Way, Southampton, SO14 3ZH UK., Statham PJ; Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH UK., Solan M; Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH UK.
Jazyk: angličtina
Zdroj: Biogeochemistry [Biogeochemistry] 2017; Vol. 135 (1), pp. 1-34. Date of Electronic Publication: 2017 Aug 01.
DOI: 10.1007/s10533-017-0366-1
Abstrakt: Continental shelf sediments are globally important for biogeochemical activity. Quantification of shelf-scale stocks and fluxes of carbon and nutrients requires the extrapolation of observations made at limited points in space and time. The procedure for selecting exemplar sites to form the basis of this up-scaling is discussed in relation to a UK-funded research programme investigating biogeochemistry in shelf seas. A three-step selection process is proposed in which (1) a target area representative of UK shelf sediment heterogeneity is selected, (2) the target area is assessed for spatial heterogeneity in sediment and habitat type, bed and water column structure and hydrodynamic forcing, and (3) study sites are selected within this target area encompassing the range of spatial heterogeneity required to address key scientific questions regarding shelf scale biogeochemistry, and minimise confounding variables. This led to the selection of four sites within the Celtic Sea that are significantly different in terms of their sediment, bed structure, and macrofaunal, meiofaunal and microbial community structures and diversity, but have minimal variations in water depth, tidal and wave magnitudes and directions, temperature and salinity. They form the basis of a research cruise programme of observation, sampling and experimentation encompassing the spring bloom cycle. Typical variation in key biogeochemical, sediment, biological and hydrodynamic parameters over a pre to post bloom period are presented, with a discussion of anthropogenic influences in the region. This methodology ensures the best likelihood of site-specific work being useful for up-scaling activities, increasing our understanding of benthic biogeochemistry at the UK-shelf scale.
(© The Author(s) 2017.)
Databáze: MEDLINE
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