132 Works

MICROPLASTIC EFFECT DATA - The world is your oyster: low-dose, long-term microplastic exposure of juvenile oysters

This dataset contains three seperate data files from an 80 day exposure study where we exposed juvenile oysters, Crassostrea gigas, to 3 different MP concentrations (104, 105 and 106 particles L-1), represented by 6µm Polystyrene (PS) microbeads, compared to a control treatment receiving no MP. There is data file for shell growth & length, one for condition index and one for lysosomal stability. Shell Length & Weight: Shell height, the maximum dimension from hinge to...

Cefas Multibeam Acoustics – Sound Velocity Profile Temperature Data

David Morris
This dataset has been extracted as part of an exercise to assemble "all" Cefas Temperature Data and publish it in a Data paper. It is one of 17 Cefas data sources assembled. The RV Cefas Endeavour has been routinely deploying Multibeam acoustic measurement techniques since 2005, with particular emphasis being placed on habitat mapping projects (Brown and Vanstaen, 2008). As part of the calibration of the various acoustic systems, a CTD cast is performed at...

Sea Angling 2012 - Shore and private boat survey

Mike Armstrong
Data from online survey done within Sea Angling 2012 project The Sea Angling 2012 project includes a number of different surveys running in parallel to provide a detailed overview of all forms of sea angling throughout England during 2012. The Centre for Environment, Fisheries and Aquaculture Science (Cefas), in collaboration with individual inshore fisheries and conservation authorities (IFCAs), carried out surveys of anglers fishing from the shore and from private or rental boats throughout 2012....

The effect of acid and neutral Lugol's iodine solution on phytoplankton sample preservation, experimental results

Oliver Williams
The data are the results of lab experiments conducted in 2013-2014 at the Cefas laboratory, Lowestoft, UK. Multiple marine phytoplankton taxa were preserved in one of three different Lugol's Iodine solutions (one neutral and two acidified at different strengths). Samples were enumerated over a period of 8 months to investigate degradation rates across taxa and preservatives. Samples consisted of 5 cultured species Ditylum brightwellii, Prorocentrum lima, Karenia mikimotoi, Coccolithus pelagicus & Tetraselmis suecica and one...

Predictor variables and groundtruth samples for north-west European continental shelf quantitative sediment analysis

Input data used to model sediment grain size for the north-west European continental shelf. Data includes: Sediment groundtruth observations with measured fractions of mud, sand and gravel, also converted to two additive log-ratios. These total 45761 samples. Also included are the eight predictor variables that were used to model sediment grain size. These were: Bathymetry, Bathymetric position index at a 50-pixel radii, Bathymetric position index at a 434-pixel radii, Distance from coast, Current speed at...

Volumes, dredged area measurements and estimated contaminants of material disposed at licensed offshore sites around the UK coast from 2000 to 2020

The dataset contains data related to registered offshore sediment disposal sites around the UK coast and includes volumes of disposed material, dredged areas, calculated levels of contaminants in the disposal material and licence details. Data were collated for the years 2000 to 2020. The Centre for Environment, Fisheries and Aquaculture Science (Cefas) on behalf of Department for environment, food and rural affairs (Defra), report these data for the United Kingdom (England, Scotland, Wales, Northern Ireland),...

Marine biotoxin data measured within crab and lobster flesh taken from samples gathered from the Northumberland coast in 2021 and 2022

Measurements of marine biotoxin concentrations quantified in crab and lobster tissues sampled from North East England around the time of the crustacean mortality event(s) during 2021. Samples were collected from October 2021 to May 2022 to determine if toxins were present in tissues which may have impacted animal health. The following instruments and methods we used to determine the concentrations of chemicals within the samples. Amnesic Shellfish Poisoning (ASP) analysis by liquid chromatography (LC) with...

Data for UK OSPAR Common Procedure - Eutrophication Assessment

This dataset contains chlorophyll, nutrients and dissolved oxygen measurements which were used in the 3rd application of the OSPAR Common Procedure for Assessment of Eutrophication and UK Marine Strategy Framework Directive Assessments for descriptor 5. Data for nutrient concentrations, chlorophyll and dissolved oxygen (DO) concentrations and all supporting metadata for coastal and offshore (marine) waters were extracted from the following databases for the period from 1990 to 2014: MERMAN (BODC)1. Discrete samples for chlorophyll (by...

CLiP Vanuatu Land Waste Audits and Interviews

This dataset contains 2 csv files. Solid_waste_audit_Vanuatu_Abundance.csv reports solid waste abundance and composition data from households and commercial activities expressed in number of items, weight or volume. Solid_waste_audit_Vanuatu_Metadata.csv reports the results of interviews done when solid waste samples were collected to gather metadata about household occupants social and behavioural metadata, including the fate of solid waste not collected through the official waste management service. Waste audits were conducted between November and December 2018 in Efate...

Trends and status of liver neoplasms in flatfish from UK waters collected between 2004 and 2015

These data are the results from histological analysis of liver neoplasms (lesions) found in flatfish taken from UK waters between 2004 and 2015. Data on the length, weight, sex and age of individuals are also included alongside the histological results. The 2016 assessment of the UK's Clean Seas Environment Monitoring Programme described the status and trends of contaminant concentrations and biological effects measurements in biota and sediment at monitoring stations in waters around the UK....

CLiP Vanuatu Microplastics in biota 2018

This dataset contains 2 csv files. One file contains data on microplastic abundance expressed in number of particles from biota samples (tuna stomachs, land crabs and reef fish) collected around Efate Island (Vanuatu) in 2018 with indication of sample wet weight, species and other characteristics. The file also contains information on blank used. The other file contains the profile of a ATR-FT-IR spectrum analysis of a plastic piece found in a tuna stomach . A...

Horizontal and vertical movement data derived from a data storage tag deployed on a single Atlantic cod in the English Channel from 2005 to 2006

These data are derived from the deployment of a single data storage tag on an Atlantic cod (Gadus morhua) in the English Channel. The cod was tagged in the Southern North Sea on 25/03/2005 and was recaptured in the Eastern English Channel on the 09/01/2006. The cod migrates down through the English Channel, resides in the Celtic Sea and then returns. The dataset contains 291 days of information. Each day consists of 144 vertical movement...

CLiP Vanuatu Microplastics in sediment 2018

This dataset contains 2 csv files. One file reports data on microplastic abundance in sediment expressed in number of particles for 5g sediment. Sediment was collected from 20 grabs deployed in Port Vila Bay and Mele Bay in Efate Island (Vanuatu) in 2018. The file also reports information on blank used, grab GPS coordinates and deployment time and the particulate size analysis (PSA) of the sediment. The other file contains the profile of a ATR-FT-IR...

UK ICES fish stock and shellfish stock assessment data 2017

This dataset summarises stock assessment advice for quota fish stocks and national shellfish stocks. These files contain data quantifying annual recruitment, biomass, stock size, landings, catches, discards, industrial bycatch, fishing pressure (fishing pressure mean, ranges, and estimated pressure accountable to landings, discards and bycatch) and stock indicators (Flim fisheries mortality that if exceeded would result in the stock falling below Blim, Blim spawning stock Biomass at the limit reference point, Fpa level of catches that...

CLiP Solomon Islands Microplastics in sediment 2017

This dataset contains 2 csv files. One file contains data on microplastic abundance expressed in number of particles per 5g dried sediment from 6 riverine, transitional and coastal locations on Guadalcanal Island (Solomon Islands) in 2017. One file contains spectrum analysis for some of the particles carried out with a ATR-FTIR. A READ-ME text file contains description of columns content for these two csv files. There is a .zip file that includes a csv file...

Seawater temperature trend analysis for the North East Atlantic (North West European Shelf)

This gridded data product provides a trend analysis to estimate the changes in Seawater Temperature at sea surface and near sea bed for the North West European Shelf for the period from 1st January 1985 to 30th June 2014 in degree Celsius. Monthly and seasonal trend values were generated by applying a Generalised Additive Model (GAM) on a time series of modelling output data for Temperature at 7 Km spatial resolution from the North West...

SmartBuoy observational network - North Dogger

Naomi Greenwood
On the SmartBuoy, surface measurements of plant nutrient concentrations are derived from two instruments. The NAS-3X in-situ nutrient analyser takes hourly measurements of nitrate concentration, while lower frequency (daily) measurements of nitrate and silicate concentration are derived from laboratory analysis of water samples collected and preserved by the WMS-2 water sampler. An estimate of phytoplankton concentration (biomass) is obtained twice per hour using a fluorometer measuring chlorophyll fluorescence. To aid interpretation of these data, SmartBuoy...

Natural bed disturbance modelling outputs

John Aldridge
This dataset consists of output from a computer model that attempts to predict annual seabed disturbance caused by waves and currents. Disturbance was taken to mean physical movement of the seedbed sediments and was quantified as a disturbance frequency (days per year disturbance occurred). For sandy regions the disturbance depth is also predicted (days per year disturbance occurred to a given depth below the seabed). For gravel and mud substrates the depth of disturbance was...

North Sea Historical Effort by Rectangle by Month: 1913 -1980

Georg Englehard
This dataset includes long-term, spatially detailed information on UK trawl and seine fishing effort in the North Sea, by month and ICES rectangle. The period covered is 1927,1937, 1947, 1957, 1967 and 1977. Effort data (number of hours fishing) are shown separately for each of the major historical demersal trawling and seining fleets of the UK: sailing trawlers (pre-WWII only), steam trawlers (until the 1970s), motor trawlers, steam seiners (pre-WWII only), and motor seiners. These...

Ichthyoplankton Analysis Data from the Western Coastal Shelf 2016

Hayden Close
Ichthyoplankton abundance data (fish eggs and larvae) to study the Spatial abundance of the species in 2016 from the western approaches of the Celtic sea in the region between 48⁰N and 54.5⁰N between March and August along the western continental shelf from France to the waters around the middle of Ireland. These samples were loaned to Cefas by ICES WGMEGS participating nations that collected the samples. The dataset consists of 551 samples split across 6...

SmartBuoy Marine Observational Network - Phytoplankton Data 2001-2017

Alex Milligan
This dataset consists of analysed phytoplankton data from the years 2001-2017 inclusive collected from the SmartBuoy moorings at Celtic Deep, Dowsing, Gabbard/West Gabbard/WestGabbard2, Warp and Liverpool Bay using WMS and EDU automated water samplers. SmartBuoys consist of a 4 meter tall stainless steel frame with a fibreglass toroid for buoyancy. Instruments are attached at a nominal 1 meter depth to the frame. The water samplers collect into pre-spiked bags containing acidified Lugols Iodine on a...

Fish observation and length data derived from stereo-baited remote underwater videos collected around Saint Lucia in 2019

Analysed stereo-Baited Remote Underwater Videos (BRUVs) from the 2019 survey in the north west of St. Lucia. In total 87 1-hour BRUV stations were successfully deployed to a maximum depth of 100m. Video classification assessed fish MaxN (number of visible individuals in a single frame) by species and measured all fish lengths at MaxN. This data holding contains: The exported files from Eventmeasure for all 87 stations (3DPoints, ImagePtPair, Info, Lengths, MovieSeq, Period, Points and...

Biotope (macrofaunal assemblage) map and associated confidence layer based on grab and core data from 1976 to 2020

Two vector (.shp) files are provided. The first, (macro_assemblages.shp) shows the modelled (random forest) macrofaunal assemblage type based on a clustering of abundance data from the OneBenthic database (see https://sway.office.com/HM5VkWvBoZ86atYP?ref=Link). The second file, (macro_assemblages_confidence.shp) shows associated confidence in the modelled output, with darker shades (high values) indicating higher confidence and lighter shades (lower values) indicating lower confidence. Both layers can be viewed in the OneBenthic Layers tool (https://rconnect.cefas.co.uk/onebenthic_layers/), together with further details of the methodology...

Shelf Sea Biogeochemistry - Celtic Deep 2 SmartBuoy

Tom Hull
This data set consists of biogeochemical sensor data from SmartBuoy moorings (Mills et al, 2005). SmartBuoys consist of a 4 meter tall stainless steel frame with a fibreglass torroid for buoyancy. Instruments are attached at a nominal 1 meter depth to the frame. In-air sensors are mounted to the top of the torroid. The buoys feature a satellite telemetry system providing near real-time telemetry. Temperature, salinity, dissolved oxygen, chlorophyll fluorescence, turbidity and photosynthetic active radiation...

Shelf Sea Biogeochemistry - Celtic Deep 2 Lander

Tom Hull
This data set consists of biogeochemical sensor data from seabed moorings. The mooring consists of a 3 legged stainless steel "minilander" 1.5 meters high. The biogeochemical sensors are mounted at 1 meter above the seabed. Temperature, salinity, dissolved oxygen, chlorophyll fluorescence, turbidity where fitted to a Cefas ESM2 data logger. These instruments gathered data for 5 minutes every 30 minutes. Sensors were validated against in-situ samples during deployment and recovery. Fluorometers were standardised using fluorosphere...

Registration Year

  • 2022
  • 2021
  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015

Resource Types

  • Dataset


  • Centre for Environment, Fisheries and Aquaculture Science
  • Auckland University of Technology
  • Marine Scotland
  • Natural Resources Wales
  • Department for Environment Food and Rural Affairs
  • Scottish Environment Protection Agency
  • Environment Agency
  • Department of Agriculture
  • Vrije Universiteit Amsterdam
  • Wilton Park