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Metadata: Irish Sea Fish Egg Production Survey - Zooplankton Data
Abstract:
A series of cruises carried out in the Irish Sea from 2006 to 2008 by the Centre for Environment, Fisheries and Aquaculture Science. This data consists of the analysis results of the fine mesh (PUP) net samples and consist of numbers of zooplankton identified, along with associated positional data and volumes filtered.
Data holder:
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
Other details | ||
Internal code | Internally assigned metadata identifier | 9649 |
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. | Irish Sea Fish Egg Production Survey - Zooplankton Data |
Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Irish Sea Demersal Fish Recruitment Processes |
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. | CEFAS3b5ea0bb-3a72-4b8e-b30b-42f3c66f5a41 |
Resource Identifier | This is the code assigned by the data owner. | CEFAS2635 |
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 | 2006-02-21 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2008-04-03 |
Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 1000 |
Spatial resolution unit | This describes the unit of spatial resolution which for distance must be metres. | urn:ogc:def:uom:EPSG::9001 |
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. | A series of cruises carried out in the Irish Sea from 2006 to 2008 by the Centre for Environment, Fisheries and Aquaculture Science. This data consists of the analysis results of the fine mesh (PUP) net samples and consist of numbers of zooplankton identified, along with associated positional data and volumes filtered. |
Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Analysis of the main net samples (ichthyoplankton and macroplankton) was carried out under Cefas contract MH003, and these results are recorded separately. Gear used: Gulf VII High Speed Plankton Sampler equipped with a 35cm/40cm aperture nose cone and 70µm/425µm mesh with 280µm mesh cod ends. A PUP sampler fitted with a General Oceanics standard speed mechanical flowmeter and fine mesh, an auxiliary 80µm mesh 'pup' net attached to a sampler frame, fine 80µm mesh 'pup' sampler with ESM2 logger. Valeport CTD and software, Seabird 911 CTD, AFBINI (Agri-Food and Biosciences Institute Northern Ireland) Pronet CTD and software system, SCANMAR depth sensor. Sampler deployment: The sampler was deployed in a double oblique tow from the surface to within 2 m of the seabed. Veering and hauling speeds were manually adjusted to ensure that each depth band was sampled equally. At shallow stations, multiple double oblique dives were necessary to enable a sufficient volume of water to be filtered. A minimum sampler deployment time of 15 minutes was aimed for. On recovery, the net was carefully washed down and the sample collected from the end bag. Each sample was then fixed using buffered formaldehyde solution and transported to the participating laboratories for sorting and identification. Sample analysis: Zooplankton were identified and enumerated from a sub-sample using microscopy. Identification was carried out by experienced taxonomists with reference to relevant identification guides and keys. Data storage: The raw data were stored on an Access database. The various data files were stored on the database in a series of tables linked by having the content of certain fields in common. All routine calculations, calibration changes and conversions were carried out on the database. The data tables (but not queries) have now been extracted into text files. Plankton data are normally expressed as either number of organisms per m3 or per m2. These are calculated from the volume of water filtered (derived using regression co-efficients calculated for different flowmeters). Number per m3 is obtained by dividing the numbers per sample by the volume filtered, and number per m2 of sea surface is obtained by multiplying the number per m3 by the mean total or sampled depth during a deployment. |
Related keywords | ||
Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Microzooplankton |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Zooplankton | |
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 | Advice | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Analysis | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Management | |
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 abundance per unit volume of the water column | |
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 | |
Geographical coverage | ||
North | The northern-most limit of the data resource in decimal degrees | 55.25 |
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 | 51.75 |
West | The western-most limit of the data resource in decimal degrees | -7 |
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 | |
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 | |
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 | |
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 | |
Role | The owner is the person or organisation that owns the resource. | owner |
Organisation name | Department for Environment, Food and Rural Affairs (DEFRA) | |
Resource locators | ||
Locator URL | Web address (URL) that links to the resource | https://data.cefas.co.uk/view/2635 |
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 | http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_RestrictionCode | |
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. | 2013-12-12 |
Date of last revision | The most recent date that the resource was revised. | 2023-10-31 |
Date of creation | The date that the resource was created. | 2013-07-24 |
Harvest date | The date which this record has been (re)harvested from the provider. | 2024-04-21 |
Metadata date | The date when the content of this metadata record was last updated. | 2023-10-31 |
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 |