2007 - 2008 Centre for Environment, Fisheries & Aquaculture Science (Cefas) 2007-2008 North Sea Nutrient Analysis
Pore-water nurtrients
This data gives the concentration of nutrients in sea water samples from the water column and from sediments (pore-water) from three sites in the North Sea (North Dogger Bank, Oyster Ground, Sean Gasfield). Includes measurements for Total Oxidised Nitrogen (TOxN) Nitrite (NO2) Phophate (P04) Silicon (Si) and Ammonia (NH4)
dataset
http://data.cefas.co.uk/#/View/911/
function: order
CEFAS128c23ed-c973-42b4-a784-8078ccae6563
http://www.cefas.co.uk/
eng
OGP
urn:ogc:def:crs:EPSG::4326
oceans
revision
2011-03-25
publication
2008-06-01
publication
2008-06-01
2
5
55.75
53
revision
2010-05-18
revision
2010-05-18
2007-01-01
2008-12-31
publication
2016-07-14
notPlanned
Samples from the water column were collected by Niskin bottles deployed on a 'CTD rosette'. Pore-water is the sea water held in the pore-spaces of marine sediments and was sampled using by a sipper system from 11 depth horizons in undisturbed sediment cores collected by a NIOZ box corer. Resulting water samples were filtered and analysed using a Skalar nutrient analyser.This data is used to determine where and how organic matter is decaying, as well as analysing sediment linkage to macronutrient cycles (N, P, Si) via nutrient fluxes or uptake across the sediment-water interface. Samples were collected from three sites (North Dogger Bank, Oyster Ground, Sean Gasfield) in the North Sea during various cruises throughout 2007 and 2008. Records include data from Defra funded project ME3205 entitled "Marine Ecosystem Connections: carbon and nitrogen fluxes through the benthic and pelagic domains" which sampled three fixed stations in the North Sea. Semi-autonomous in situ systems were deployed at each study site to follow temporal changes in environmental conditions such as temperature, light, nutrients, and chlorophyll fluorescence. Detailed studies of pelagic and benthic food webs were carried out during 8 research cruises spaced to capture seasonal changes (February , April, May, September, and October/November 2007; January, April and September 2008). Cruise sampling was focussed on identifying ecosystem structure, in terms of seabed types, physics, chemistry, and the abundance (as numbers and/or biomass) and diversity of planktonic and benthic communities (from micro- to macro- organisms). Experimental work was carried out to obtain estimates of the rates of key processes such as primary production, zooplankton secondary production, carbon cycling, and nutrient fluxes across the sediment-seawater interface (see Painting et al. 2010) Further details of the project can be found at: `http://randd.defra.gov.uk/Default.aspx?Menu=Menu&Module=More&Location=None&Completed=0&ProjectID=13011`_ .. _`http://randd.defra.gov.uk/default.aspx?menu=menu&module=more&location=none&completed=0&projectid=13011`: http://randd.defra.gov.uk/Default.aspx?Menu=Menu&Module=More&Location=None&Completed=0&ProjectID=13011
Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply
Public data (Crown Copyright) - Open Government Licence Terms and Conditions apply
Data Manager
Centre for Environment, Fisheries & Aquaculture Science
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
NR33 0HT
UK
+44 (0)1502 562244
originator
Data Manager
Centre for Environment, Fisheries & Aquaculture Science
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
NR33 0HT
UK
+44 (0)1502 562244
custodian
Data Manager
Centre for Environment, Fisheries & Aquaculture Science
Cefas Lowestoft Laboratory
Pakefield Road
Lowestoft
NR33 0HT
UK
+44 (0)1502 562244
pointOfContact
2016-07-14T12:28:23