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Eleventh in a series of 12 surveys in 1976 to investigate the distribution and abundance of planktonic fish eggs and larvae, zooplankton predators and competitors and phytoplankton. Plankton samples were collected at each site on a planned survey grid. This data consists of numbers of ichthyo- and macroplankton from 14 of the main net samples collected from an area off the North East coast of England, along with associated positional data and volumes filtered.
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
| Other details | ||
| Internal code | Internally assigned metadata identifier | 9281 |
| 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. | West Central North Sea Plankton Survey - RV Corella 13/76 |
| 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. | CEFAS1a27b77a-d13d-4ff1-b0c0-eef650cc5531 |
| Resource Identifier | This is the code assigned by the data owner. | CEFAS2526 |
| 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 | 1976-09-28 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 1976-10-13 |
| 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. | Eleventh in a series of 12 surveys in 1976 to investigate the distribution and abundance of planktonic fish eggs and larvae, zooplankton predators and competitors and phytoplankton. Plankton samples were collected at each site on a planned survey grid. This data consists of numbers of ichthyo- and macroplankton from 14 of the main net samples collected from an area off the North East coast of England, 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. | Sample collection: A grid of stations were worked based on the ICES statistical rectangles over the area from north Norfolk to 56°N and to longitude 2°E. Sampling points were 18 nautical miles apart longitudinally and along latitude lines 15 nautical miles apart. In the centre of this grid, to the north of the River Humber and to the south of the River Tyne, intermediate sampling points 9 nautical miles apart were designated; this central part constituted the main priority plankton sampling grid. This survey grid was worked on twelve cruises between the end of January and the beginning of November. Seven cruises were planned for the first four months to sample cod and plaice spawnings, while the remainder, at approximately monthly intervals, were to sample summer- and autumn-spawning fish. The sampling gear used for the main surveys was the Lowestoft multipurpose plankton sampler. This sampler consists of a 30 inch (76 cm) diameter fibreglass tube enclosing a conical nylon filtering net, 185 cm long. The mesh of the net has an aperture of 270 µm and a porosity of 46%. Water enters the net via a hemispherical nose cone with an opening of 16 inches (40.6 cm) diameter giving a 7: 1 ratio of open area of net to sampler mouth opening. The main sampler net was used to collect fish eggs and larvae and other macroplankton (particle size > 300 µm) including edible crab larvae. Two accessory samplers were mounted on the body of the main sampler, each one made up of a 6 inch (15 cm) diameter PVC tube with a metal nose cone with a 2 inch (5.1 cm) aperture. Each accessory sampler contained a conical nylon filtering net, 147 cm long, of mesh aperture 35 µm and porosity 16% in one sampler, and 61 µm and 26% respectively in the other. These accessory samplers were used to collect the smaller zooplankton and large diatoms and dinoflagellates. An electromechanical flowmeter was fitted in the nose cone of the main sampler and standard mechanical flowmeters at the rear of each accessory sampler. An additional mechanical flowmeter was mounted on the outside of the main sampler, operating continuously in free stream. The sampler was operated over the stern of the vessel at a towing speed of *5 *knots. A Scripps depressor on a 30 cm strop was attached to the underside of the sampler immediately behind the nose cone. By paying out and hauling the cable at a constant speed, the sampler performed a shallow, oblique dive to within 2 m of the sea bed and back to the surface, thus providing an equivalent sample of each part of the water column. The samples collected at sea by the main net and by the two auxillary samplers were each washed carefully from the net into the collecting bag on the end of the net. The sample was then transferred to a glass storage jar, labelled and fixed by the addition of 40% sodium acetate buffered formalin, in the ratio one part fixative to nine parts sample plus seawater. Sample analysis: Whenever practicable, the whole main net sample was sorted for fish eggs and larvae. Sub-sampling was limited to those samples containing exceptionally large numbers of eggs or larvae. |
| 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 | Phytoplankton | |
| 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 | 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 | 56.5 |
| East | The eastern-most limit of the data resource in decimal degrees | 4 |
| South | The southern-most limit of the data resource in decimal degrees | 52.5 |
| West | The western-most limit of the data resource in decimal degrees | -2 |
| 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 | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://data.cefas.co.uk/view/2526 |
| Locator name | Name of the web resource | Cefas Data Portal |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | https://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/ | |
| 21.1 Conditions for Access and Use - Use constraints | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | 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. | 2013-11-28 |
| 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. | 2013-06-25 |
| 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 |
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