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Metadata: 1412S- Mackerel acoustic survey North Sea -Scotia cruise 1412S
Abstract:
Daily folders (6) of Simrad format (.raw) acoustic data. SH80 sonar data. pdf biological data sheets for 5 pelagic hauls. All biological data available in FSS database. CTD data for 4 vertical dips. Continual Thermosalinograph data. Continual AGDS data. Objectives: • 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
Data holder:
Scottish Government (Marine Scotland)
Use constraints:
no limitations to public access
Other details | ||
Internal code | Internally assigned metadata identifier | 6205 |
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. | 1412S- Mackerel acoustic survey North Sea -Scotia cruise 1412S |
Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Mackerel Survey, Scotia 1412S, north sea mackeral acoustic 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. | Marine_Scotland_FishDAC_1720 |
Resource Identifier | This is the code assigned by the data owner. | Marine_Scotland_FishDAC_1720 |
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. | Daily folders (6) of Simrad format (.raw) acoustic data. SH80 sonar data. pdf biological data sheets for 5 pelagic hauls. All biological data available in FSS database. CTD data for 4 vertical dips. Continual Thermosalinograph data. Continual AGDS data. Objectives: • 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 |
Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Acoustic data will be collected at four frequencies (18, 38, 120 and 200 kHz) between 0800 and 2000 hours. Fish shoals seen on the echosounder will be identified using a pelagic trawl (PT160). Trawling operations will be carried out up to 3 times per day at anytime between 0800 and 2000. The vessels netsonde systems will be required to monitor catch density and position of shoals in the water column during trawling. Where there is evidence of shoals dispersing or single targets then fishing may also be carried out using rod and line. Biological sampling of all species caught will be carried as per standard sampling protocol. If required a vertical hydro dip will be carried out immediately following a pelagic trawl, this will require the vessel to use its DP system to remain on station. The ships thermosalinograph will be run continuously to obtain sea surface temperature and salinity throughout the survey area. Acoustic surveying may continue on an opportunistic basis between 2000 and 0800 to collect data on spurdogs. Rod and line fishing will be carried out to obtain biological samples of these. |
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 | Acoustics | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Biota composition | |
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 | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fish biomass in water bodies | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Fish morphology, age and physiology | |
Geographical coverage | ||
North | The northern-most limit of the data resource in decimal degrees | 61 |
South | The southern-most limit of the data resource in decimal degrees | 59.5 |
West | The western-most limit of the data resource in decimal degrees | -3 |
Regional sea | 48E7 | |
49E7 | ||
48E8 | ||
49E8 | ||
50E8 | ||
48E9 | ||
49E9 | ||
50E9 | ||
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 | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
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 | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
Delivery point | Mailpoint 11, Area 1B South, Victoria Quay | |
Postal code | EH6 6QQ | |
City | Edinburgh | |
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 | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
Delivery point | Mailpoint 11, Area 1B South, Victoria Quay | |
Postal code | EH6 6QQ | |
City | Edinburgh | |
Country | United Kingdom | |
Role | The distributor is the person or organisation that distributes the resource. | distributor |
Organisation name | Scottish Government (Marine Scotland) | |
Phone | +44 (0)300 244 4000 | |
Delivery point | Mailpoint 11, Area 1B South, Victoria Quay | |
Postal code | EH6 6QQ | |
City | Edinburgh | |
Country | United Kingdom | |
Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
Organisation name | Aberdeen University | |
Phone | +44 1224 272 000 | |
Delivery point | King's College | |
Postal code | AB24 3FX | |
City | Aberdeen | |
Country | United Kingdom | |
Resource locators | ||
Locator URL | Web address (URL) that links to the resource | https://www.bodc.ac.uk/data/information_and_inventories/cruise_inventory/search/ |
Locator function | Code that describes the function of the resource. ISO function code chosen from ISO 19115-1 Codelist | Reference info #0 |
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 limitations to public 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 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. | 2016-04-05 |
Harvest date | The date which this record has been (re)harvested from the provider. | 2024-04-21 |
Metadata date | The date when the content of this metadata record was last updated. | 2016-05-03 |
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 |