95 Works

International Bottom Trawl Survey Jellyfish Data - North Sea - 2012 to 2018

The wet weight in grams of gelatinous zooplankton (jellyfish) caught at each station during International Bottom Trawl Surveys in the North Sea from 2012 to 2018. Also included are associated station data which include datetime, location, depths, swept volume and information on gear deployment. Any blank values indicate the value was not recorded. Jellyfish data were collected using standard GOV fishing gear deployed from Cefas RV Endeavour, to carry out the International Bottom Trawl Survey...

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...

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....

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...

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...

Northwest European shelf seas, Phytoplankton pigments, 2010 to 2019

These data contain concentrations in micrograms per litre (ug/L) of the individual accessory pigments of phytoplankton measured by High Pressure Liquid Chromatography (HPLC). Pigment samples were taken primarily on Cefas fisheries and SmartBuoy cruises and sent to DHI laboratory in Denmark for HPLC analysis. Data was then sent back to Cefas and matched with metadata and quality controlled. Chlorophyll concentrations from this dataset have a variety of uses: for assessment of concentrations for purposes such...

Cefas Citizen Science Diver Recorded Temperatures

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. This data source differs from the others in this collection because it arises from an investigation into the potential for Citizen Science to contribute to assessments of the marine environment. The dataset is derived from a database containing over 7,000 records of temperature...

Sediment Organic Carbon in Marine Sediments around England and Wales 1996 - 2015

Claire Mason
Sediment organic carbon (and nitrogen) data from marine samples collected between 1996-2015 around England and Wales. Measurements for <2mm sediment fraction or/and <63µm sediment fraction are given. Silt/clay(%) is also included (for either/both sieving and laser methodologies) as well as sample weight where available. These data have been collated from a variety of sources, including CSEMP monitoring, nephrops monitoring, fishing pressures research and the NERC shelf seas programme to support on-going investigations for the Cefas/Defra...

Molecular characterization of an Endozoicomonas-like species associated with mass mortalities of king scallop Pecten maximus L. in United Kingdom

Irene Cano
The king scallop Pecten maximus L. is the fastest growing fishery in the UK and currently the second most valuable. Mass mortality events in scallops have been reported associated with rickettsia-like organisms (RLOs) world-wide, however the causative agents were uncharacterised. In May 2013 and 2014 two mass mortality events affecting king scallops were recorded in the Lyme Bay Marine Protected Area (MPA) South West England. Histopathological examination showed gill epithelial tissue infected with RLO at...

Experimental results of trials to assess non-native fish impacts on the diet and trophic position of native pond fishes using stable isotope analysis in outdoor artificial ponds

Tea Basic
These data derive from experiments carried out during the spring and summer months of two successive years (2014 and 2015) in outdoor experimental ponds previously situated in East Sussex. The aim of the experiments was to determine whether or not introduced non-native fish species have an adverse impact on the diet and trophic position of native pond fishes. The experimental set up was more or less identical in both years, the study species in 2014...

ESM2 Profiler/mini CTD Logger

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. ESM2 is a Cefas developed micro–logger for applications requiring a small low–power logger with integrated sensors and battery. It has standard sensors for conductivity, temperature, depth, optical backscatter and roll & pitch. Data are saved compact flash cards which are easily removed for...

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...

Fladen experimental fishing impact recovery data - 4m Beam Trawl

Total count and biomass in grams of taxa identified from 4m beam trawl samples of the seabed, with associated station information. Samples were collected from three experimental treatment boxes only using two 4m beam trawls in parallel to simulate commercial beam trawling operations during the first of two research surveys on the RV Cefas Endeavour in April 2015. The sampling gear consisted of a commercially rigged (1989 style) 4m beam trawl (measured between inside edges...

Collated new Non-native species records for UK from 2003-2014

Data are new records of non-indigenous species made between 1st January 2003 and 31st December 2014 for Celtic Seas and Greater North Sea region. Data include the date that a new records of non-indigenous species was first made and the location of the observation. Separate data were received from Great Britain and Northern Ireland. Data were checked in Microsoft Excel 2016 for taxonomic discrepancies and formatting issues which were then addressed. Species names were cross...

Fladen experimental fishing impact recovery data - Sediment profile imagery

Biological (presence of infauna, tubes) and physical (apparent redox potential discontinuity (aRPD) layer, penetration depth, surface roughness) parameters measured, and a Benthic Habitat Quality Index assessment, from sediment profile images of the seabed with associated station information. The sediment profile images were acquired from a self-contained photographic system at sampling stations located within six experimental boxes (three treatments and three control) during a fishing impact recovery survey within the Fladen Grounds. Data were collected at...

Seabed mapping data from remote sensing and groundtruth samples taken at East of Haig Fras Marine Conservation Zone from 2012 to 2015

As described in the manuscript entitled "Limitations of predicting substrate classes on a sedimentary complex but morphologically simple seabed" remotely sensed variables and ground truth samples were distributed as part of a seabed mapping exercise. This holding contains the four raster layers provided to all participants for the East of Haig Fras MCZ and the groundtruth samples. These four rasters are: Multibeam echosounder bathymetry, multibeam echosounder backscatter, modelled maximum current velocity at the seabed and...

Horizontal and Vertical Movements of Atlantic cod and European plaice in the North Sea and English Channel from 1996 to 2010 Derived from Data Storage Tags

David Righton
This data is derived from the deployment of archival data storage tags (DST) on Atlantic cod (Gadus morhua) and European plaice (Pleuronectes platessa) in the North Sea and English Channel. Tags were deployed throughout the time period 1996 – 2010. The dataset includes 107 individual fish each with its own bivariate time series of horizontal (m day-1) and vertical movements (m day-1). Daily geolocation estimates (latitude and longitude) are also provided. The length of each...

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),...

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...

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...

UK shelf and North Sea quantitative sediment composition predictions

Oliver Williams
Spatial predictions of substrate composition for the UK shelf and North Sea. Compositional fractions of mud, sand and gravel were modelled for an area of the UK and North Sea using a statistical regression model. This dataset consists of percentage composition predictions for the mud, sand and gravel components as raster tifs. In addition the proportion of each of these sediment components were combined to predict the likely sediment classification as both a EUNIS habitat...

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...

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...

Zooplankton data from Ring net, CALPS and PIA from the Western English Channel and Eastern Irish Sea in 2016

Sophie Pitois
Zooplankton data was collected from 3 different devices: Ring net, Continuous automated Litter and Plankton Sampler (CALPS) and Plankton Image Identifier (PIA), during the PELTIC 2016 survey (Pelagic ecosystem in the western English Channel and eastern Celtic Sea, 3rd to the 19th October) on board the RV “Cefas Endeavour”. Zooplankton samples and images were collected at 40 stations during the night. Depth-integrated vertical hauls using the Ring net were deployed with the aim of sampling...

Ferry Routes Monitoring System (Historical)

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. Near surface temperature and salinity samples have been collected by ferries, the most recent, the Stena Partner, along 52°N between Harwich (formerly Felixstowe) and Rotterdam, from August 1970 onwards. Throughout the year, at weekly intervals, temperature data were recorded and water samples taken...

Registration Year

  • 2022
  • 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