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Metadata: By-catch from AFBI Irish Sea and North Channel Queen Scallop Dredge Research Surveys 2013 - present
Abstract:
This dataset contains information on bycatch of non-target species from the AFBI Irish Sea and North Channel Queen Scallop Dredge Research Surveys between 2013 â?? present on board the R.V. Corystes. The primary objectives of this research surveys series are to obtain information on spatial patterns of abundance of different size-classes of queen scallops in the Irish Sea and off the north coast, to further test for optimal sampling gear for future queen scallop surveys and to collect biological information from queen scallops and scallops by area, including tissue samples. The survey primarily utilises underwater television (UWTV) footage (c. 10 mins) to identify abundance of queen scallop which is supplement with biological sampling from dredge and beam trawl. Dredge samples were taken at selected stations across a spectrum of observed queenie densities
Data holder:
Agri-Food and Biosciences Institute
Click on the red button for resource contact details:
- Click on the red button for resource contact details
Use constraints:
no restrictions
| Other details | ||
| Internal code | Internally assigned metadata identifier | 1135 |
| 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. | By-catch from AFBI Irish Sea and North Channel Queen Scallop Dredge Research Surveys 2013 - present |
| 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. | 486859d10bab63fa57d813ed3710cc0d |
| Resource Identifier | This is the code assigned by the data owner. | AFBINIQSS |
| 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 | 2013-07-03 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2018-07-04 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 50 |
| 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'. | annually |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | This dataset contains information on bycatch of non-target species from the AFBI Irish Sea and North Channel Queen Scallop Dredge Research Surveys between 2013 â?? present on board the R.V. Corystes. The primary objectives of this research surveys series are to obtain information on spatial patterns of abundance of different size-classes of queen scallops in the Irish Sea and off the north coast, to further test for optimal sampling gear for future queen scallop surveys and to collect biological information from queen scallops and scallops by area, including tissue samples. The survey primarily utilises underwater television (UWTV) footage (c. 10 mins) to identify abundance of queen scallop which is supplement with biological sampling from dredge and beam trawl. Dredge samples were taken at selected stations across a spectrum of observed queenie densities |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | This dataset contains a time series (2013 â?? 2018) of bycatch data from the AFBI Queen Scallop dredge research survey. It should be noted that the species of primary concern of this research survey was the Queen Scallop (Aequipecten opercularis) and as such the survey design, sampling protocol and technical equipment were designed to maximise the recording of the target species. Over the course of the time series there has been adjustments to survey design, sampling protocol, survey staff and technical equipment in response to changing requirements and latest novel developments in survey equipment. At the end of each research survey individual cruise reports are composed by the Scientist in Charge of (S.I.C.) that provide a summary of the individual survey design, sampling protocol, survey staff and technical equipment and are available on request. The below protocol outlines a general overview of the sampling protocol of the research survey. A bespoke survey report outlined the specification. Stations were selected at random from a fixed grid 0.03 x 0.03 decimal degrees. The number of stations within strata were selected as a function of historic queenie fishery within that strata and strata area. At all stations the camera and sledge was deployed. Film data from 15-minute tows at each station were stored on DVDs. A USBL system was used to enable the course taken by the sledge during tows to be tracked. This information is an essential input to calculation of the area of seabed swept during each tow. The dredge is towed at 2.2kn for 15 minutes. Dredge samples were taken at selected stations across a spectrum of observed queenie densities. The fishing gear used four dredges towed abreast, the outer dredges were as used by the commercial vessels for targeting queen scallops (width = 725 mm). The inner dredges were as used to target king scallop (width = 745 mm), one of these was fitted with a fine mesh liner. All catch was processed separately from the each of these three dredge types. A beam trawl and net were used at selected stations. The otter trawl net is towed at 2.4kn for 30 minutes, beam trawl samples were collected from samples of 10 minutes with towing speed of 1 kn. Length frequencies of all queen scallops were taken and two from each length class (0.5cm) retained for biological sampling - length, breadth, and abductor muscle and gonad weights. Length frequencies of all finfish bycatch and counts of benthos were recorded. Paired sampling by otter trawl net and dredge at stations was undertaken to compare catch rates and gear selectivity. |
| 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 | Species distribution | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fishing by-catch | |
| Geographical coverage | ||
| North #1 | The northern-most limit of the data resource in decimal degrees | 55.3952 |
| East #1 | The eastern-most limit of the data resource in decimal degrees | -4.6951 |
| South #1 | The southern-most limit of the data resource in decimal degrees | 54.6126 |
| West #1 | The western-most limit of the data resource in decimal degrees | -6.1637 |
| North #2 | The northern-most limit of the data resource in decimal degrees | 54.3237 |
| East #2 | The eastern-most limit of the data resource in decimal degrees | -3.5385 |
| South #2 | The southern-most limit of the data resource in decimal degrees | 53.2718 |
| West #2 | The western-most limit of the data resource in decimal degrees | -5.6086 |
| Regional sea | Irish Sea | |
| Inner Seas off the West Coast of Scotland | ||
| Irish Sea and St. George's Channel | ||
| VIIa | ||
| VIa | ||
| 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 | ||
| 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. | no restrictions |
| 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. | no conditions |
| 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. | 2019-01-10 |
| 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. | 2019-01-10 |
| 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 |