134 Works

ScanFish – North and Celtic Seas

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. ScanFish is a high performance towed undulating CTD which was deployed by Cefas, initially, to aid the understanding of the coupling between physical and biological processes (Brown et al., 1996). It was towed behind the vessel at approximately 8 knots and undulated from...

Salmon production model

Keith Jeffery
The bio-economic model can be used to identify and summarise potential production scenarios for Atlantic Salmon. Users can specify an initial fish weight, time of year and desired harvest weight; the model would then return the Time to Harvest for this scenario. Furthermore the model can optimise the time spent in an intermediate system such that the time in net pens is reduced below (eg) 12 months. The model is one of the key outputs...

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

Georg Englehard
This dataset includes long-term, spatially detailed information on UK trawl and seine fishing effort in the North Sea, by year and ICES rectangle. The period covered is 1923–1980 excluding the years during and immediately after both World Wars. 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...

Atlantic cod catch records from Cefas survey cruises in the Arctic 1930-1959

Bryony Townhill & John Pinnegar
The data are records of the station details and cod catches from UK government fisheries survey cruises in the Arctic region from 1930 to 1949. They have been digitised from survey logbooks held by the Centre for Environment, Fisheries and Aquaculture Science.

Cefas Coastal Temperature Network

David Morris
The Coastal Temperature Network consists of Cefas (and predecessor) originated data and data from external suppliers, who have agreed their data can be published as part of the network (Jones, 1981). The earliest data are from 1875 (Owers Light vessel) and have been supplied by the Met Office. The longest continuous record provided here is from Eastbourne (1892–2014). Sampling is from piers and breakwaters 50-200m from the shore where possible (Jones, 1981). The present network...

Cefas SmartBuoy Monitoring Network

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. SmartBuoys are autonomous marine monitoring systems making high frequency measurements of physical, chemical and biological parameters (Greenwood et al., 2010). They have been deployed as part of the UK marine eutrophication monitoring programme. Sea surface temperature is measured using an FSI or Aanderaa...

Defra Strategic Wave Monitoring Network

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. WaveNet, Defra's strategic wave monitoring network for the United Kingdom, provides a single source of real-time wave data from a network of wave buoys located in areas at risk from flooding. In operation since 2002, WaveNet collects and processes data from the Cefas-operated...

Cefas Electronic Data Storage-Tag Database

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. Electronic tags that record temperature and depth were attached to, or implanted into, cod caught in the southern North Sea between 1999 and 2009 (for methods see Neat et al., 2014). Data from tags that were returned from recaptured cod were downloaded and...

Cefas Historic Secchi Depth Measurements

Elisa Capuzzo
Secchi depth measurements, collected for studying the effects of the light climate on pelagic fish (e.g. fish school position in the water column compared to the depth of penetration of light); The dataset comprise 470 Secchi depth measurements collected in 1931, 1937, 1946-1950, 1968. The coordinates of each observation were generally not indicated in the logbooks and were derived from the associated station-sheets. Occasionally the exact coordinates were not specified but only the location of...

Shelf Sea Biogeochemistry - CANDYFLOSS 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 - East Of Haig Fras Seabed 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 - Nymph Bank Lander

Tom Hull
This data set consists of biogeochemical sensor data from seabed moorings. 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 beads. Turbidity meters were calibrated using Stabical (Hach, US). The moorings were also fitted with upward facing acoustic Doppler current profilers (ADCP), this data...

Management Strategy Evaluation toolkit for Ecopath with Ecosim (model output and technical report)

Christopher Lynam
This dataset consists of output from a computer model that predicts responses of 69 functional groups from plankton to whales to changing fishing pressure. Scenarios are run using the newly built plug-in (see report) that allows for an assessment of the effect of model parameter uncertainty. The base model is the ICES key-run of EwE for the North Sea described here http://data.cefas.co.uk/#/View/2847. Format of the data: Zipped csv files covering the hindcast period 1991-2013 (inclusive)...

Biological-based habitat classification approaches promote cost-efficient monitoring: an example using seabed assemblages

Keith Cooper
Files for use with the R script accompanying the paper Cooper et al. (2018). Note that this script also uses files from https://doi.org/10.14466/CefasDataHub.34 (details provided in script). Cooper, K.M., Bolam, S.G., Downie, A. Callaway, A., Barry, J. (2018). Biological-based habitat classification approaches promote cost-efficient monitoring: an example using seabed assemblages. Journal of Applied Ecology. Files include: R SCRIPT FINAL.R (R script) C5922DATASETFAM13022017REDACTED.csv (see below for description) UKSeaMap2016_SedimentsDissClip.shp (UK Seamap data clipped to study area. These...

Large Woody Debris Restoration Field Experiment Dataset

Murray Thompson
Riverine species and environmental data relating to Thompson et al. (2017) Large woody debris rewilding rapidly restores biodiversity in riverine food webs. Journal of Applied Ecology. The purpose of this study was to test for causal evidence of ecological restoration following the introduction of large woody debris in rivers. Chlorophyll-a and diatom community structure was estimated from stone scrapes; a Hess sampler (0.017m2) with 335µm mesh was used to collect invertebrates and coarse (CPOM) and...

CLiP Belize Microplastics in biota 2019

This dataset contains 2 csv files. One file contains data on microplastic abundance expressed in number of particles from biota samples (queen conch, Lobatus gigas) collected in Belize in 2018 (and analysed in 2019) with indication of sample wet weight and blank used. The other file contains the profiles of the ATR-FT-IR spectrum analysis of plastic pieces found in the conch stomachs. A README text file contains the legend of the columns of the two...

CLiP Belize Land Waste Audits and Interviews 2019

This dataset contains 4 csv files. HouseholdsolidwasteauditBelizedata.csv reports solid waste abundance and composition data from households expressed in number of items, weight or volume; and CommercialsolidwasteauditBelizedata.csv reports solid waste abundance and composition data from commercial activities. HouseholdsolidwasteauditBelizemetadata.csv reports the results of interviews done when solid waste samples were collected to gather information about household occupants social status and behaviour, including the fate of solid waste not collected through the official waste management service. CommercialsolidwasteauditBelizemetadata.csv reports...

Seafloor Marine Litter from UK EEZ zones between 2012 and 2017

This data set was used to assess the density of litter in the seafloor for the MSFD indicator assessment that was completed in 2018 and published in 2019 at https://moat.cefas.co.uk/pressures-from-human-activities/marine-litter/seafloor-litter. The data contained counts of each type of litter category. The data is contained in the file, litter 2017 new.csv. Details on what the data columns mean are shown in the readme file. Data is only from the UK EEZ zone. This is made up...

Historical Seabed Drifters Dataset 1969 to 1990

Dataset containing historical Seabed drifters data. A dataset for all deployments and returns has been created. It contains the following information. Drifter Releases (By year/Drop). Drifter Releases AND Returns (By year/Drop). Each file contains information on: Lat/Long /Date of release, Lat/Long /Date of return, Days out. The Dataset contains 11704 entries for Seabed drifters (1969-1990), with a 41 percent Return’s rate. At Cefas (historically MAFF), from the early 1960s to 1990 large numbers of specially...

CLiP South Africa Marine Litter Accumulation Study (Cefas-UKZN) 2019

This dataset contains 2 csv files. The file South_Africa_Marine_Litter_Data.csv contains data on marine litter found during beach surveys in Umhlanga (north of Durban) and Amanzimtoti (south of Durban) in South Africa in September 2019. The number of items and the weight in kg is reported for each litter category. Each survey is named with the name of the location plus a capital letter between A and L for Amanzimtoti; and between A and K for...

Fladen experimental fishing impact recovery data - Acoustic data

Output imagery of multibeam echosounder backscatter (tiffs) from within six experimental boxes (three treatments and three control) during a fishing impact recovery survey within the Fladen Grounds. Data were collected at three time points (before impact (time 0), immediately after impact (time 1) and 8 months after impact (time 2) during two research surveys on the RV Cefas Endeavour in April 2015 and November 2015. One hundred percent multibeam bathymetry and backscatter data were acquired...

Fladen experimental fishing impact recovery data - Benthic macrofauna

Total counts and biomass in grams of individual taxa identified from 0.1m squared Day Grab samples of the seabed with associated station information. The benthic macrofaunal samples were collected 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 three time points (before impact (time 0), immediately after impact (time 1) and 8 months after impact (time 2)...

Fladen experimental fishing impact recovery data - Particle size analysis

Particle size distribution, Folk, European Nature Information System (EUNIS) and Broadscale habitat classifications identified from 0.1m2 Day Grab samples of the seabed, with associated station information. Particle size distribution samples were collected using a 0.1m2 Day Grab 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 three time points (before impact (time 0), immediately after impact (time...

Zooplankton abundance data derived from the Plankton Imager system from the Western English Channel and Eastern Irish Sea from 2016 to 2019

These data are abundances (in numbers per meters cubed) of zooplankton taxa, calculated from the analysis of images taken using the Plankton Imager system also included are station positions and sampling date / times. The images where collected using the PI (formerly known as Plankton Image Analyser (PIA)), during the PELTIC (Pelagic ecosystem in the western English Channel and eastern Celtic Sea) surveys from 2016 to 2019, on board the RV Cefas Endeavour. Zooplankton samples...

CLiP South Africa Microplastics in the Port of Durban 2019

This dataset contains two csv files. The first one (South_Africa_Port_Durban_Microplastics.csv) reports the results of the study carried out in the Port of Durban in 2019. The file contains water measurement from CTD casts, microplastic abundance in water sampled by microplastic pump, microplastic abundance in sediment and particulate size analysis (PSA) results from Van Veen grab samples. GPS coordinates and time of deployment are reported for each measurement. CTD measured temperature, salinity and turbulence of the...

Registration Year

  • 2022
    11
  • 2021
    8
  • 2020
    28
  • 2019
    34
  • 2018
    9
  • 2017
    14
  • 2016
    27
  • 2015
    3

Resource Types

  • Dataset
    134

Affiliations

  • Centre for Environment, Fisheries and Aquaculture Science
    99
  • Auckland University of Technology
    5
  • Marine Scotland
    3
  • Natural Resources Wales
    3
  • Department for Environment Food and Rural Affairs
    2
  • Scottish Environment Protection Agency
    2
  • Environment Agency
    2
  • University of East Anglia
    2
  • Department of Agriculture
    1
  • Vrije Universiteit Amsterdam
    1