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Metadata: Gillnet retrieval survey 2006/07 - Fisheries Science Partnership
Abstract:
Gillnet retrieval survey carried out on fishing grounds to the south-west of Ireland, from 4th to 24th July 2006, using the commercial trawler FV Regina Ponti, to examine the quantity and mesh size of lost and discarded gillnets in the anglerfish and shark fisheries in two areas of Porcupine Bank.
Data holder:
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
| Other details | ||
| Internal code | Internally assigned metadata identifier | 9335 |
| 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. | Gillnet retrieval survey 2006/07 - Fisheries Science Partnership |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | FSP Gill net retrieval survey |
| 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. | CEFAS29a4f7ba-bf73-4fc0-a46d-fff918085a4b |
| Resource Identifier | This is the code assigned by the data owner. | CEFAS2916 |
| 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 | 2006-07-04 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2006-07-24 |
| 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. | Gillnet retrieval survey carried out on fishing grounds to the south-west of Ireland, from 4th to 24th July 2006, using the commercial trawler FV Regina Ponti, to examine the quantity and mesh size of lost and discarded gillnets in the anglerfish and shark fisheries in two areas of Porcupine Bank. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | A Fisheries Science Partnership survey was carried out in July 2006 to examine the quantity and mesh size of lost and discarded gillnets in the anglerfish and shark fisheries in two areas of Porcupine Bank. Information from the DEEPNET project suggests that lost and discarded gillnets from these fisheries to the west of the British Isles may continue to 'ghost fish' for long periods due to a slow rate of bio-fouling. The FV Regina Ponti was chartered to carry out a gillnet retrieval survey using a single grapnel. The survey area was chosen based on information on the distribution of fishing activity from VMS data. Retrieval tows along transects were stratified by depth, the two strata corresponding to the depth range of the anglerfish (400–800 m) and the deep-water shark (800–1200 m) fisheries. Mesh size was used to further attribute retrieved gear to fishery. The size and composition of any ghost catches taken by retrieved nets were recorded. Weather conditions throughout the trip were generally good. The targeted transects to the west of the Porcupine Bank were fully completed and those to the SW of Porcupine Bank were 91% completed. No complete fleets of gillnets were retrieved. Only parts of gillnets were retrieved and these comprised small portions of net a few square metres in area, headlines with some mesh, lead-lines with some mesh or occasionally both headline and lead-line with a portion of mesh. The majority of the mesh was either not present or was rarely recovered. Most recovered nets had a mesh size of between 270 and 290 mm, suggesting they were from the anglerfish fishery. Compared with the results of the 2005 FSP retrieval survey at Rosemary Bank, there was evidence of much greater quantities of gillnets at Porcupine Bank. This suggests that the distribution of lost and discarded gillnets may be very variable, even between areas where the level of gillnet activity is Ghost catches were found in 5 of the 12 gillnet fragments retrieved, most of which comprised only small numbers of various species of deep-water crab. Only one fragment had a significant ghost catch (0.3 tonnes) and this comprised deep-water crab (Geryon tridens). Only a single fish was observed in ghost catches throughout the survey. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Biota abundance, biomass and diversity |
| 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 | 58.25 |
| East | The eastern-most limit of the data resource in decimal degrees | -5 |
| South | The southern-most limit of the data resource in decimal degrees | 46.5 |
| West | The western-most limit of the data resource in decimal degrees | -17 |
| 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 | Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) | |
| 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/2916 |
| 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://www.nationalarchives.gov.uk/doc/open-government-licence/ | |
| 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. | 2014-12-05 |
| Date of last revision | The most recent date that the resource was revised. | 2021-12-01 |
| Date of creation | The date that the resource was created. | 2013-10-08 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2021-12-01 |
| 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 |