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Daily folders (11) of Simrad format (.raw) acoustic data. 6 folders of Edgetech broadband acoustic data. Echoview mackerel detection template. PDF biological data for 6 pelagic hauls and rod and line deployments. Biological data in FSS database. CTD data for 6 vertical dips. Continual Thermosalinograph data. Continual AGDS data. Overall Objectives: To estimate mackerel density and abundance in the area of the Shetland Isles. To investigate the use of a broadband system as a means to determine mackerel size. To study distribution of cetaceans and their relationship to mackerel shoals. Specific Objectives: Calibration of Edgetech Broadband system. Calibrate Sv and TS gains on the Simrad EK60. Obtain acoustic data from mackerel using the Edgetech broadband system. Obtain biological samples of mackerel from schools by trawling. Trial deployment options for the Edgetech broadband system. Obtain acoustic data from mackerel using the Simrad WBAT autonomous broadband system. Compare the echo returns from a low cost portable sounder system with those from the calibrated Simrad EK60 echo-sounder system. Deploy a lightweight AU Go-Pro camera system into the mackerel schools to observe behaviour. Deploy MSS Go-Pro system on PT160 net Deploy MSS Go-Pro lander system onto the sea bed to identify fish traces on un-trawlable ground. Visually observe marine mammal distribution and activity during daylight hours. Obtain towed hydrophone acoustic recordings of mammal vocalisation during survey transects. Compare netsonde traces of mackerel in the net with those seen using the cable less Scanmar trawl eye system.
Scottish Government (Marine Scotland)
no limitations to public access
Other details | ||
Internal code | Internally assigned metadata identifier | 6162 |
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. | 1415S Mackerel Acoustic Survey_-Scotia Cruise 1415S |
Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Broadband acoustics, edgetech, mackerel 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_1712 |
Resource Identifier | This is the code assigned by the data owner. | Marine_Scotland_FishDAC_1712 |
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 | 2015-10-05 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2015-10-16 |
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 (11) of Simrad format (.raw) acoustic data. 6 folders of Edgetech broadband acoustic data. Echoview mackerel detection template. PDF biological data for 6 pelagic hauls and rod and line deployments. Biological data in FSS database. CTD data for 6 vertical dips. Continual Thermosalinograph data. Continual AGDS data. Overall Objectives: To estimate mackerel density and abundance in the area of the Shetland Isles. To investigate the use of a broadband system as a means to determine mackerel size. To study distribution of cetaceans and their relationship to mackerel shoals. Specific Objectives: Calibration of Edgetech Broadband system. Calibrate Sv and TS gains on the Simrad EK60. Obtain acoustic data from mackerel using the Edgetech broadband system. Obtain biological samples of mackerel from schools by trawling. Trial deployment options for the Edgetech broadband system. Obtain acoustic data from mackerel using the Simrad WBAT autonomous broadband system. Compare the echo returns from a low cost portable sounder system with those from the calibrated Simrad EK60 echo-sounder system. Deploy a lightweight AU Go-Pro camera system into the mackerel schools to observe behaviour. Deploy MSS Go-Pro system on PT160 net Deploy MSS Go-Pro lander system onto the sea bed to identify fish traces on un-trawlable ground. Visually observe marine mammal distribution and activity during daylight hours. Obtain towed hydrophone acoustic recordings of mammal vocalisation during survey transects. Compare netsonde traces of mackerel in the net with those seen using the cable less Scanmar trawl eye system. |
Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | Fishing and Sampling Gear: Midwater trawl PT160 x 2 Edgetech broadband towed system Seabird 911 CTD Go-pro camera system(s) with additional sensors (depth, temp, attitude etc) Towed hydrophone array Lowrance echosounder system Simrad WBAT autonomous broad band sounder system Rod and line systems. Scanmar trawl eye sensor Acoustic data will be collected at four frequencies (18, 38, 120 and 200 kHz) on a 24 hour basis. While transecting, a towed hydrophone array will be deployed over the stern of the vessel and will be recovered prior to any fishing operations. The towed hydrophone will not restrict the vessels movement when at survey speed. Fish schools seen on the echosounder will be identified using a pelagic trawl (PT160). Trawling operations will be carried out at any time in a pre agreed period, probably between 09:00 and 21:00 hours. The vessels netsonde systems will be required to monitor catch density and position of schools in the water column during trawling. The SH80 sonar will be used to collect acoustic data and direct trawling operations. Biological sampling of all species caught will be carried out as per standard sampling protocol with 5 otoliths per cm length for each haul plus required length and weight data. A vertical CTD dip will be carried out immediately following a pelagic trawl or once a day if trawling has not taken place, this will require the vessel to use its DP system to remain on station. Deployment into mackerel schools of the fishing rod mounted Go-Pro camera/sensor system will be done either from the hanger deck in DP or with vessel drifting depending on the conditions. The opportunity will be taken during some tows to deploy the MSS net mounted Go-Pro system on the net. Go pro systems may be deployed onto the seabed if schools are seen in un-trawlable areas. The ships thermo-salinograph will be run continuously to obtain sea surface temperature and salinity throughout the survey area. |
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 | Cetacean abundance | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Cetacean behaviour | |
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 | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Water column photography | |
Geographical coverage | ||
North | The northern-most limit of the data resource in decimal degrees | 61.5 |
East | The eastern-most limit of the data resource in decimal degrees | 3 |
South | The southern-most limit of the data resource in decimal degrees | 58.5 |
West | The western-most limit of the data resource in decimal degrees | -5 |
Regional sea | 46E5 | |
47E6 | ||
48E7 | ||
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48E8 | ||
49E8 | ||
50E8 | ||
48E9 | ||
49E9 | ||
50E9 | ||
51E9 | ||
48F0 | ||
49F0 | ||
50F0 | ||
51F0 | ||
48F1 | ||
49F1 | ||
50F1 | ||
51F1 | ||
51F2 | ||
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 | ISO restriction code chosen from ISO 19115-1 Codelist | otherRestrictions |
20 Limitations on Public Access – Other constraints | Any restriction on the use of the resource such as the need to agree to certain licence conditions. | no limitations to public access |
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. | 2016-03-29 |
Metadata date | The date when the content of this metadata record was last updated. | 2016-10-19 |
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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