133 Works

Macrobenthos Data from Shoreham, the Tyne and the Thames Estuaries, UK, 2000 to 2006

These data describe counts of macrobenthic infauna (with associated station metadata) taken from sediment samples collected at sites in the Tyne, Thames and Shoreham, UK from 2000 to 2006. For selected samples, wet biomass data is also included per taxon. The samples from the Shoreham site were collected across an aggregate extraction area over 4 years with the aim to test several habitat mapping techniques by documenting the presence of different faunal levels across the...

International (ICES) and national (UK) fish stock and shellfish stock data from 2021 assessment year

The dataset collected includes assessment output relating to the years from 1905 to 2021 inclusive for annual estimates of the following variables for each stock: the annual recruitment estimate; the stock size (spawning stock biomass); landings (tonnes of fish brought to shore); catches (tonnes of fish caught at sea); fishing pressure (a fishing mortality rate); the target fishing mortality that will achieve maximum sustainable yield in the long term (Fmsy); upper and lower range estimates...

Microplastics in sediment cores data from the UK continental shelf and slope 2017

This dataset contains two CSV files. One CSV file reports locations and technical details for the cores, along with their slices, subsamples and the number of microplastic particles and fibres recorded in each 5g sample processed. Details of how the cores were sampled and processed can be found in the publication and its supporting information. The second CSV file contains x-y data for the micro-ATR-IR analysis of representative particles picked from some of the filters,...

Predicted sedimentation rates data for the Baltic Sea derived from samples from 1992 - 2019

Spatial prediction of the sediment accumulation rate, provided as a .geotif file (as an average linear rate in cm yr-1 since 1986) for the Baltic Sea created using a machine learning approach. Predicted rates of sediment accumulation vary from 0.08-1.67 cm yr-1. Field measurements were acquired between 1992 and 2012 as compiled by EMODnet Geology. Predictor variables were derived from 2003 to 2018 from various sources including EMODnet Bathymetry, Copernicus and Cefas staff. Modelling subsequently...

Occurrences of sensitive fish species in scientific trawl surveys of the Northeast Atlantic 1983-2020

The OSPAR (https://www.ospar.org/convention) fish biodiversity assessment concerns sensitive and often rare species in the northeast Atlantic Ocean and marginal seas. All fish species captured during fishing on scientific groundfish (otter and beam trawl) surveys are recorded but not necessarily weighed and measured for length. The biodiversity assessment for sensitive and often rare species thus makes use of the occurrences (presence and absences) of a species only. A list of sensitive fish species was developed to...

Database of critical oxygen level (Pcrit) in freshwater and marine fishes 1974 - 2015

This is a comprehensive database of critical oxygen (Pcrit) values from freshwater, marine and euryhaline teleost fish compiled from published literature. The database incorporates 331 measurements of Pcrit from a total of 96 published studies and covers 151 fish species from 58 families. It provided the opportunity to critically examine methodologies for determining Pcrit as well as its usefulness as an indicator of hypoxia tolerance in fish. Additional data are included (when available) on various...

West Gabbard zooplankton abundance time series monitoring using ZooScan from 2016 to 2020

Estimates of zooplankton taxa abundances identified and analysed using semi-automated methods with the ZooScan instrument and EcoTaxa web application. Data are obtained from opportunistic ringnet sampling at the West Gabbard sampling location as part of a time series. The dataset currently contains the results from zooplankton samples obtained from 30/06/2016 - 17/12/2020, although the time series is ongoing. After subsequent image analysis, the sampling information and results are analysed to provide abundance estimates for zooplankton...

Migration of tagged silver eels in the Atlantic 2006 - 2014

Known and estimated locations of silver European eels in the Atlantic from 2006 to 2014 derived from popup satellite tags and archival tags. Other data associated with the tagging experiments such as the length, weight, fat percentage, Pankhurst index and Fin index are also included. Locations were either known (from transmitted positions) or were estimated based on the temperature at depth data recorded by electronic tags (latitude) and the timing of steep dives at dawn...

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...

Angler behaviour survey response data December 2013 to March 2014

This dataset is a standard SurveyMonkey csv export of results from an online survey to determine the behaviour and attitudes of recreational anglers towards biosecurity and fishery management. The survey consisted of 22 closed-format questions, and was made available between November 2013 and March 2014, receiving a total of 1380 responses. The survey was targeted towards anglers in England and Wales, but it is possible that some responses could have been from further afield. Online...

International (ICES) and national (UK) fish stock and shellfish stock data from 2020 assessment year

The dataset collected includes assessment output relating to the years from 1905 to 2020 inclusive for the following variables for each stock: the annual recruitment estimate, the stock size (spawning stock biomass), landings (tonnes of fish brought to shore), catches (tonnes of fish caught at sea), fishing pressure (a fishing mortality rate), Fmsy (the target fishing mortality that will achieve maximum sustainable yield in the long term), Upper and lower range estimates for Fmsy consistent...

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
  • University of East Anglia
  • Department of Agriculture
  • Vrije Universiteit Amsterdam