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Metadata: Videos and still images of the seabed from the 2018 drop camera survey off the western coast of St. Lucia
Abstract:
As part of the Commonwealth Marine Economies Programme (CMEP) Cefas collected 212 drop camera video tows of the seabed off the western coast of St. Lucia in the Caribbean. The purpose was to characterise the benthic fauna within the area and support the creation of benthic habitat maps for four key areas of the island (Rodney Bay, Castries to Marigot Bay, Soufriere and Vieux Fort). The videos and still images were acquired using a lightweight drop camera frame with a Bowtech high definition video camera, Olympus Mark III stills camera, two lasers for scaling images and additional lighting for real colour images of the seabed. The drop camera frame was lowered to the seabed by hand from a vessel, with the video monitored to maintain a consistent height above the seabed. Tows were 15 minutes long with the vessel drifting in neutral so the distance covered in each tow varied. Sample depths ranged from 4-80 m and covered a range of habitats including bare sediment, seagrass, and coral and sponge dominated reefs. Still images were acquired every 10 seconds based on an automated timer. Only a limited number of the still images were processed for the creation of the seabed maps, however, all images have been retained in this data holding.
Data holder:
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS)
| Other details | ||
| Internal code | Internally assigned metadata identifier | 9577 |
| 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. | Videos and still images of the seabed from the 2018 drop camera survey off the western coast of St. Lucia |
| 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. | CEFAS443c5f46-0575-47ca-ad7b-1d5ffc719ccf |
| Resource Identifier | This is the code assigned by the data owner. | CEFAS21137 |
| 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 | 2018-08-19 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2018-09-19 |
| 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. | As part of the Commonwealth Marine Economies Programme (CMEP) Cefas collected 212 drop camera video tows of the seabed off the western coast of St. Lucia in the Caribbean. The purpose was to characterise the benthic fauna within the area and support the creation of benthic habitat maps for four key areas of the island (Rodney Bay, Castries to Marigot Bay, Soufriere and Vieux Fort). The videos and still images were acquired using a lightweight drop camera frame with a Bowtech high definition video camera, Olympus Mark III stills camera, two lasers for scaling images and additional lighting for real colour images of the seabed. The drop camera frame was lowered to the seabed by hand from a vessel, with the video monitored to maintain a consistent height above the seabed. Tows were 15 minutes long with the vessel drifting in neutral so the distance covered in each tow varied. Sample depths ranged from 4-80 m and covered a range of habitats including bare sediment, seagrass, and coral and sponge dominated reefs. Still images were acquired every 10 seconds based on an automated timer. Only a limited number of the still images were processed for the creation of the seabed maps, however, all images have been retained in this data holding. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | This data holding contains the raw drop camera videos which are overlaid with the station information, GPS coordinates and time and the still images for all the stations collected during the 2018 survey. The processed still images are contained within a separate data holding. The data holding also contains the GPS coordinates for each tow as a csv file, with separate files for each day. The survey log contains the metadata recorded for each station. |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Benthos |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Biodiversity | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Sea bed | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitats and biotopes | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Benthic boundary | |
| 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 | 20 |
| East | The eastern-most limit of the data resource in decimal degrees | -60 |
| South | The southern-most limit of the data resource in decimal degrees | 10 |
| West | The western-most limit of the data resource in decimal degrees | -70 |
| 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 | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://data.cefas.co.uk/view/21137 |
| 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/iso/19139/resources/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. | 2021-07-21 |
| Date of last revision | The most recent date that the resource was revised. | 2024-03-27 |
| Date of creation | The date that the resource was created. | 2021-04-07 |
| 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. | 2024-03-27 |
| 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 |