97 Works

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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