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The objectives of the survey were: • To obtain in-situ target strength data and biological samples from dispersed individuals and schools of mackerel to verify target strength models. • To obtain echosounder and sonar data from mackerel schools to determine numerical density and abundance. • To obtain hydrographic data from vertical CTD casts Specific Objectives 1. Obtain individual in-situ TS measurements of mackerel. 2. Obtain sonar recordings of mackerel schools. 3. Obtain echosounder recordings of mackerel schools. 4. Obtain biological samples of mackerel from schools (trawl). 5. Obtain biological samples of mackerel from dispersed single targets (rod and line). 6. Calibrate Sv and TS gains on the Simrad EK60. 7. Obtain and freeze a length stratified sample of mackerel for analysis on the laboratory. 8. Obtain biological samples of spurdog. 9. Obtain echosounder recordings of spurdog. 10. Obtain hydrographic data from vertical CTD casts
Marine Scotland
Marine Scotland
Marine Scotland
Other details | ||
Internal code | Internally assigned metadata identifier | 6147 |
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. | FishDAC - Mackerel Acoustic Survey - 2012 |
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. | Marine_Scotland_FishDAC_1646 |
Resource Identifier | This is the code assigned by the data owner. | Marine_Scotland_FishDAC_1646 |
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 | 2012-10-16 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2012-10-22 |
Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | 55000.00 |
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'. | not planned |
Abstract | The abstract provides a clear and brief statement of the content of the resource. | The objectives of the survey were: • To obtain in-situ target strength data and biological samples from dispersed individuals and schools of mackerel to verify target strength models. • To obtain echosounder and sonar data from mackerel schools to determine numerical density and abundance. • To obtain hydrographic data from vertical CTD casts Specific Objectives 1. Obtain individual in-situ TS measurements of mackerel. 2. Obtain sonar recordings of mackerel schools. 3. Obtain echosounder recordings of mackerel schools. 4. Obtain biological samples of mackerel from schools (trawl). 5. Obtain biological samples of mackerel from dispersed single targets (rod and line). 6. Calibrate Sv and TS gains on the Simrad EK60. 7. Obtain and freeze a length stratified sample of mackerel for analysis on the laboratory. 8. Obtain biological samples of spurdog. 9. Obtain echosounder recordings of spurdog. 10. Obtain hydrographic data from vertical CTD casts |
Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | This survey contains echosounder data, fishing data (PT160 Midwater trawl, and Rod and line fishing) and CTD data. |
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 | Water column temperature and salinity | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Acoustic backscatter in the water column | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fish abundance in water bodies | |
Geographical coverage | ||
North | The northern-most limit of the data resource in decimal degrees | 61.15384 |
East | The eastern-most limit of the data resource in decimal degrees | 0.4614258 |
South | The southern-most limit of the data resource in decimal degrees | 58.2286 |
West | The western-most limit of the data resource in decimal degrees | -4.21875 |
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 | Marine Scotland | |
Phone | +44 (0)1224 876 544 | |
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 | Marine Scotland | |
Phone | +44 (0)1224 876 544 | |
Delivery point | Marine Scotland Science, Marine Laboratory, 375 Vcitoria Road | |
Postal code | AB11 9DB | |
City | Aberdeen | |
Country | United Kingdom | |
Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
Organisation name | Marine Scotland | |
Phone | +44 (0)1224 876 544 | |
Delivery point | Marine Scotland Science, Marine Laboratory, 375 Vcitoria Road | |
Postal code | AB11 9DB | |
City | Aberdeen | |
Country | United Kingdom | |
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 | Marine Scotland | |
Individual name | Copland, Philip | |
Phone | +44 (0)1224 876 544 | |
Delivery point | Marine Scotland Science, Marine Laboratory, 375 Vcitoria Road | |
Postal code | AB11 9DB | |
City | Aberdeen | |
Country | United Kingdom | |
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 | Marine Scotland | |
Individual name | Rasmussen, Jens | |
Phone | +44 (0)1224 876 544 | |
Delivery point | Marine Scotland Science, Marine Laboratory, 375 Vcitoria Road | |
Postal code | AB11 9DB | |
City | Aberdeen | |
Country | United Kingdom | |
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 | Marine Scotland | |
Individual name | Stewart, Michael | |
Phone | +44 (0)1224 876 544 | |
Delivery point | Marine Scotland Science, Marine Laboratory, 375 Vcitoria Road | |
Postal code | AB11 9DB | |
City | Aberdeen | |
Country | United Kingdom | |
Dataset constraints | ||
20 Limitations on Public Access - Access constraints | ISO restriction code chosen from ISO 19115-1 Codelist | license |
21 Conditions for Access and Use - Use limitation | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | Open Government License (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. | 1900-01-01 |
Metadata date | The date when the content of this metadata record was last updated. | 2015-08-28 |
Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Metadata |
Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | Version 2.3.7 |
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