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Metadata: HERAS - 0810S - Herring acoustic survey 2011 - North Sea - Scotia
Abstract:
Daily folders (18) of Simrad format (.raw) acoustic data. 18 Echoview format (EV) format analysis files. Excel biological data for 28 pelagic hauls. 31 deployments of OCEAN sampler for plankton and CTD sampling. 21 camera stations. 56 sediment grab samples. Continual Thermosalinograph data. Continual AGDS data. Objectives: To conduct an acoustic survey to estimate the abundance and distribution of herring in the north western North Sea and north of Scotland between 58º30’-62ºN and 4ºW to 2ºE, excluding Faroese waters.To obtain biological samples for echosounder trace identification using a pelagic trawl. To obtain samples of herring for biological analysis, including age, length, weight, sex, maturity, fat content and ichthyophonus infection.To obtain hydrographic data for comparison with the horizontal and vertical distribution of herring.To obtain plankton samples to map the distribution and abundance of zooplankton.To obtain information on seabed habitats using grab sampling and drop frame TV.
Data holder:
Scottish Government (Marine Scotland)
Use constraints:
no limitations to public access
Other details | ||
Internal code | Internally assigned metadata identifier | 6195 |
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. | HERAS - 0810S - Herring acoustic survey 2011 - North Sea - Scotia |
Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | HERAS, Herring 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_1710 |
Resource Identifier | This is the code assigned by the data owner. | Marine_Scotland_FishDAC_1710 |
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 | 2010-06-28 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2010-07-18 |
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 (18) of Simrad format (.raw) acoustic data. 18 Echoview format (EV) format analysis files. Excel biological data for 28 pelagic hauls. 31 deployments of OCEAN sampler for plankton and CTD sampling. 21 camera stations. 56 sediment grab samples. Continual Thermosalinograph data. Continual AGDS data. Objectives: To conduct an acoustic survey to estimate the abundance and distribution of herring in the north western North Sea and north of Scotland between 58º30’-62ºN and 4ºW to 2ºE, excluding Faroese waters.To obtain biological samples for echosounder trace identification using a pelagic trawl. To obtain samples of herring for biological analysis, including age, length, weight, sex, maturity, fat content and ichthyophonus infection.To obtain hydrographic data for comparison with the horizontal and vertical distribution of herring.To obtain plankton samples to map the distribution and abundance of zooplankton.To obtain information on seabed habitats using grab sampling and drop frame TV. |
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 3. Multisampling pelagic cod-end with one fine mesh cod-end. OCEAN sampler Day grab and table Sieving system TV drop frame (Manual deployment)Acoustic data will be collected at four frequencies (18, 38, 120 and 200 kHz) between 0300 and 2300 hours. Fish shoals seen on the echo-sounder will be identified using a pelagic trawl (PT160). Trawling operations will be carried out between two and four times per day at anytime between 0300 and 2300. Fishing operations will normally be carried out using the multi-sampler cod end but if there is a possibility that large shoals are in the area, the normal net will be used. Samples of all species caught will be measured for length to partition the echo integral amongst species and size classes for target strength functions. Fish will also be weighed to establish a length-weight relationship. Otoliths will be collected from a sub-sample of the herring to determine age; the state of maturity fat content and presence of Icthyophonus infection will also be recorded. Where required, an OCEAN Sampler deployment will be carried out immediately following a pelagic trawl. The decision to carry this out will be based on achieving at least one CTD & plankton cast in each ICES rectangle. The OCEAN sampler will be equipped with a CTD to record temperature and salinity and zooplankton nets to collect samples from throughout the water column. The ships thermo-salinograph will be run continuously to obtain sea surface temperature and salinity throughout the survey area. Benthic investigations will take place between 2300 and 0300. With the vessel in DP mode, a day grab will be used to collect sediment samples which will be processed by sieving and then preserved on board. A camera drop frame will be deployed from the hanger deck. It is expected that up to 4 sites will be surveyed in each overnight period. Roxann will be run to collect sediment information throughout the survey. |
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 | 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 | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Habitat characterisation | |
General subject area(s) associated with the resource, uses multiple controlled vocabularies | Seabed photography | |
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 | Zooplankton | |
Geographical coverage | ||
North | The northern-most limit of the data resource in decimal degrees | 62 |
East | The eastern-most limit of the data resource in decimal degrees | 2 |
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 | -4 |
Regional sea | 46E6 | |
47E6 | ||
48E6 | ||
49E6 | ||
46E7 | ||
47E7 | ||
48E7 | ||
49E7 | ||
50E7 | ||
46E8 | ||
47E8 | ||
48E8 | ||
49E8 | ||
50E8 | ||
51E8 | ||
46E9 | ||
47E9 | ||
48E9 | ||
49E9 | ||
50E9 | ||
51E9 | ||
52E9 | ||
46F0 | ||
47F0 | ||
48F0 | ||
49F0 | ||
50F0 | ||
51F0 | ||
52F0 | ||
46F1 | ||
47F1 | ||
48F1 | ||
49F1 | ||
50F1 | ||
51F1 | ||
52F1 | ||
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 | Joint Nature Convervation Committee (JNCC) | |
Phone | +44 (0) 1733 562 626 | |
Delivery point | Monkstone House, City Road | |
Postal code | PE1 1JY | |
City | Peterborough | |
Country | United Kingdom | |
Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
Organisation name | Marine Scotland Science | |
Delivery point | 375 Victoria Road | |
Postal code | AB11 9DB | |
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. | 2016-03-29 |
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. | 2019-10-22 |
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 |