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Metadata: Benthic infaunal abundance and biomass from Belfast Lough dredge disposal monitoring operations 2017 and 2018
Abstract:
This dataset contains information on benthic infaunal abundance and biomass from sediment grabs and video footage from off the Copeland Islands in Belfast Lough in late 2017 and early 2018 on the RV Corystes. This survey was carried out to describe the species and seabed habitats within a 0.5NM buffer zone of a dredge disposal site. The survey was carried out pre and post operation to allow the potential impacts to be investigated. In total there were 29 grab samples taken and analysed and 4 video tows carried out and analysed. Particle size analysis (PSA) and Carbon and Nitrogen analysis were also carried out on the sediments from the grab samples. All grab samples contained fauna species with the most abundant being Balanus cretanus and the most frequently recorded being Sabellaria spinulosa. The most frequently recorded species on the video tows were Spirobranchus triqueter and Balinidae.
Data holder:
Agri-Food and Biosciences Institute
Use constraints:
Open access
| Other details | ||
| Internal code | Internally assigned metadata identifier | 776 |
| 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. | Benthic infaunal abundance and biomass from Belfast Lough dredge disposal monitoring operations 2017 and 2018 |
| 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. | 30838364b85716760379c8824341ffdf |
| Resource Identifier | This is the code assigned by the data owner. | DASSHSE00000055 |
| 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 | 2017-10-23 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2018-01-22 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 10 |
| Spatial resolution unit | This describes the unit of spatial resolution which for distance must be metres. | http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/uom/gmxUom.xml#m |
| 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. | This dataset contains information on benthic infaunal abundance and biomass from sediment grabs and video footage from off the Copeland Islands in Belfast Lough in late 2017 and early 2018 on the RV Corystes. This survey was carried out to describe the species and seabed habitats within a 0.5NM buffer zone of a dredge disposal site. The survey was carried out pre and post operation to allow the potential impacts to be investigated. In total there were 29 grab samples taken and analysed and 4 video tows carried out and analysed. Particle size analysis (PSA) and Carbon and Nitrogen analysis were also carried out on the sediments from the grab samples. All grab samples contained fauna species with the most abundant being Balanus cretanus and the most frequently recorded being Sabellaria spinulosa. The most frequently recorded species on the video tows were Spirobranchus triqueter and Balinidae. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | This dataset contains information on infaunal abundance and biomass and association habitat biotope from sediment grabs and video tows carried out off the Copeland Islands in Belfast Lough. The main aim of this survey was to describe the species present and the seabed habitats within a 0.5NM buffer zone of a dredge disposal site off the Copeland Islands. Another key aim was to allow scientists to investigate the potential impact of the dredge disposal site operations. The survey was carried out on the RV Corystes and it targeted 5 stations that transect across the disposal site buffer zone. Two surveys were carried out in this project, one pre operation and one post operation (within 2 months of completion of the disposal) of the disposal site, to allow the potential impacts to be assessed. In both surveys, two sample methods were used; Day grabs and video tows. The 1st (pre) survey took place on 2017-10-23 and the 2nd (post) took place on 2018-01-22. In the pre-disposal survey 14 grab samples were taken and 1 video tow completed. In the post-disposal survey 15 grab samples were taken and 3 video tows completed. It should be noted that different camera set ups were used in both surveys. During the 1st survey a drop frame camera was used but this proved to be problematic due to strong tidal currents in the area, therefore in the 2nd survey a towed camera sledge was used to enable more control and mobility. It should also be noted when using this data that there was very poor visibility on all the camera footage due to the suspended sediment load in the water column, this made taxonomic discrimination difficult. This was mitigated to the best of our ability by using two experienced marine biologists to review and analyse the video data. The methodologies for both the grab samples and video tows are detailed below. Grab samples. A 0.1m2 day grab was used to take a sample of the sediment and associated infaunal communities. When the sample reaches the deck, a 250ml sample is taken for PSA and a further 25ml is taken for C and N analysis. The rest of the sample is carefully sieved to reveal any infauna. Fixed Formalin (4 percent buffered formaldehyde) is added to the remains of the sample and these are placed in labelled buckets. The samples are sent to accredited taxonomic laboratories were they are identified to as high a level as possible and weighed. Video tows. As previously stated, both a drop frame camera and a towed camera sledge were used in this project to try and maximise control over the device and to obtain better quality footage. The footage is reviewed twice by experienced marine biologists to ensure a high level of quality control. Unfortunately in this project there was poor visibility on all footage due to a high level of suspended sediment in the water column (particularly in 2018-01 due to a large number of storms) and this impeded slightly on taxonomic discrimination which is important to note if using this data for analysis. |
| Related keywords | ||
| Keyword | 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 | NDGO0005 | |
| Keyword title | data.gov.uk | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Land use |
| 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 | Zoobenthos generic abundance | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Industrial activity | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Biodiversity | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 54.8794 |
| East | The eastern-most limit of the data resource in decimal degrees | -5.2907 |
| South | The southern-most limit of the data resource in decimal degrees | 54.6107 |
| West | The western-most limit of the data resource in decimal degrees | -5.7446 |
| Regional sea | Irish Sea | |
| benthic boundary layer | ||
| circalittoral | ||
| 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 | Agri-Food and Biosciences Institute | |
| Position name | Project manager | |
| dassh.enquiries@mba.ac.uk | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | Agri-Food and Biosciences Institute | |
| Position name | Project manager | |
| dassh.enquiries@mba.ac.uk | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Agri-Food and Biosciences Institute | |
| Position name | Project manager | |
| dassh.enquiries@mba.ac.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 | Agri-Food and Biosciences Institute | |
| Position name | Project manager | |
| dassh.enquiries@mba.ac.uk | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://doi.org/10.17031/tyhfos |
| Locator name | Name of the web resource | DOI Link |
| Locator URL | Web address (URL) that links to the resource | https://www.dassh.ac.uk/ |
| Locator name | Name of the web resource | DASSH website |
| Dataset constraints | ||
| 20 Limitations on Public Access - Access constraints | otherRestrictions | |
| 20 Limitations on Public Access - Other constraints | This states any limitations on access to the data and uses free text. | Open access |
| 21 Conditions for Access and Use - Use limitation | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | Open access; CC-BY (https://creativecommons.org/licenses/by/4.0/) |
| 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. | 2019-01-08 |
| Date of last revision | The most recent date that the resource was revised. | 2021-11-10 |
| Date of creation | The date that the resource was created. | 2018-01-22 |
| 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. | 2022-07-22 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery metadata standard |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 2.3.8 |