© OpenStreetMap contributors
- Add External Layer
- Upload Shapefile
- Layer Tutorial
- Close
Use the checkbox () to show or hide a layer.
Use the radio buttons () to select a layer to use with the identify function.
- Layers
- Opacity
Available layers
(ctrl+c)
Search for marine data across UK organisations
- API
- How-To
- About
- Contact MEDIN
- Share
Metadata: Phytoplankton abundance data for Spring and Autumn of 2018 in the Celtic Sea
Abstract:
Phytoplankton abundance data collected on the RV Cefas Endeavour as part of CEND0518 and CEND1718, CEND0319 and CEND0419. Samples were collected for use in eutrophication assessments and to test the Ferrybox water sampler. These samples were analysed at CEFAS. Samples were collected using three different methods: ( 1.)Manually from a rosette. ( 2.)Manually from the continuous flow. ( 3.)Automatically with a water sampler attached to the Ferrybox.
Data holder:
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
| Other details | ||
| Internal code | Internally assigned metadata identifier | 9886 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | Phytoplankton abundance data for Spring and Autumn of 2018 in the Celtic Sea |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | CEFAS697e2edd-c5c3-4d89-b84c-f8e5e7c62586 |
| Resource Identifier | This is the code assigned by the data owner. | CEFAS20364 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | dataset |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2013-10-12 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2014-11-01 |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | notPlanned |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | Phytoplankton abundance data collected on the RV Cefas Endeavour as part of CEND0518 and CEND1718, CEND0319 and CEND0419. Samples were collected for use in eutrophication assessments and to test the Ferrybox water sampler. These samples were analysed at CEFAS. Samples were collected using three different methods: ( 1.)Manually from a rosette. ( 2.)Manually from the continuous flow. ( 3.)Automatically with a water sampler attached to the Ferrybox. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Sample collection methods: ( 1.)Samples were collected from Niskin bottles fired at depth, transferred into a 500 ml container and fixed with 2-3 ml of 25% acidified Lugol's iodine solution. ( 2.)Samples were collected from the continuous flow ferrybox water supply (approx. 4m water depth) in a 500 ml container and fixed with 2-3 ml of 25% acidified Lugol's iodine solution. ( 3.)150ml water samples were collected from the surface underway system using an automated Cefas Technology Limited water sampler into polyethylene bags which had 2.5 ml of 25% acidified Lugol's iodine solution added. Sample analysis: All phytoplankton samples collected underwent full taxonomic analysis in house, using a light microscope and following the Utermöhl method (Paxinos and Mitchell, 2000) on a 25 ml of sample. The identification was done at the species level whenever possible, and the results reported as number of cells per litre. Phytoplankton taxa and abundance were determined after sedimentation of the samples in 25 ml glass chambers, and using an inverted microscope (Utermöhl 1931). Size of most common taxon were measured with a micrometer and used for calculating cell volume and biomass (µgC l-1). Using the measurements collected from all the samples, average cell volume (µm3) of each taxon were calculated using geometric formulas given by Edler (1979), except for the genus Ceratium. Volume of the latter was calculated according to Thomsen (1992). To convert cell volume to carbon (pg C) the equations of Menden-Deuer and Lessard (2000) were used. When cell measurements were not available for a given taxon, the cell carbon contents suggested by Harrison et al. (2015) were used in the calculations. Due to difficulties in determining cell abundance in colonies, the carbon content of Phaeocystis colonies was determined from the radius of the colony, adopting the relationship of Verity et al. (2007). Estimates of biomass were combined with the abundance data to calculate the biomass per litre. Abundances and carbon contents of phytoplankton taxa were grouped based on functional groups (e.g. centric diatoms, pennate diatoms). The trophic status of dinoflagellates (i.e. autotrophic or heterotrophic) was not determined therefore dinoflagellates were included as part of the phytoplankton (rather than microzooplankton). |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Monitoring |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Plankton | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Phytoplankton | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Species distribution | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Water column | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | data.gov.uk | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 52.5 |
| East | The eastern-most limit of the data resource in decimal degrees | -2.5 |
| South | The southern-most limit of the data resource in decimal degrees | 49.75 |
| West | The western-most limit of the data resource in decimal degrees | -8 |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Delivery point | Cefas Lowestoft Laboratory, Pakefield Road | |
| Postal code | NR33 0HT | |
| City | Lowestoft | |
| Administrative area | Suffolk | |
| Country | UK | |
| data.manager@cefas.co.uk | ||
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | Department for Environment, Food and Rural Affairs (DEFRA) | |
| defra.helpline@defra.gov.uk | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://data.cefas.co.uk/view/20364 |
| Locator name | Name of the web resource | Cefas Data Portal |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | noLimitations | |
| 21.1 Conditions for Access and Use - Use constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ | |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2021-06-30 |
| Date of last revision | The most recent date that the resource was revised. | 2025-11-06 |
| Date of creation | The date that the resource was created. | 2020-02-26 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-12 |
| Metadata date | The date when the content of this metadata record was last updated. | 2025-11-06 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 3.1.1 |