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Metadata: 1006H HERAS West coast herring acoustic survey. MFV Enterprise
Abstract:
Daily folders (17) of Simrad format (.raw) acoustic data. 17 Echoview format (EV) format analysis files. Excel biological data for 33 pelagic hauls. Objectives 1. To conduct an acoustic survey to estimate the abundance and distribution of herring in the north western North Sea and west of Scotland (ICES area VIa(N) as part of the ICES International North Sea Herring Acoustic Survey. 2. To obtain samples of herring for biological analysis, including age, length, weight, sex, maturity and ichthyophonus infection.
Data holder:
Scottish Government (Marine Scotland)
Use constraints:
no limitations to public access
Other details | ||
Internal code | Internally assigned metadata identifier | 6214 |
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. | 1006H HERAS West coast herring acoustic survey. MFV Enterprise |
Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | 1006H, west coast herring, acoustic survey Enterprise |
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_1729 |
Resource Identifier | This is the code assigned by the data owner. | Marine_Scotland_FishDAC_1729 |
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 | 2006-07-03 |
End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2006-07-20 |
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 (17) of Simrad format (.raw) acoustic data. 17 Echoview format (EV) format analysis files. Excel biological data for 33 pelagic hauls. Objectives 1. To conduct an acoustic survey to estimate the abundance and distribution of herring in the north western North Sea and west of Scotland (ICES area VIa(N) as part of the ICES International North Sea Herring Acoustic Survey. 2. To obtain samples of herring for biological analysis, including age, length, weight, sex, maturity and ichthyophonus infection. |
Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | The survey was carried out using a Simrad EK60 38 kHz sounder echo-integrator Further data analysis was carried out using SonarData Echoview and Marine Laboratory Analysis systems. Data from the echo integrator were summed over quarter hour periods (2.5 n.mi. at 10 knots). The survey was generally restricted to hours of daylight between 0300h and 2300h UTC. A total of 2020 nautical miles of track were recorded. Echo integrator data were collected from 10 metres below the surface (transducer at 5.5 m depth) to 0.5 m above the seabed. Data were processed on a daily basis, then archived as Echoview files (.raw,.evi) and stored on DVD and external hard drive. Biological data - fishing trawls 33 trawl hauls were carried out opportunistically during the survey on the denser echo traces. All trawls were carried out using a PT160 pelagic trawl with a 20 mm cod end liner. A scanning netsonde was mounted on the headline. Each haul was sampled for length, age, maturity and weight of individual herring. Up to 686 fish were measured at 0.5 cm intervals from each haul. Otoliths were collected with 1 per 0.5 cm class below 23 cm, 3 per 0.5 cm class from 23 to 27 cm and 10 per 0.5 cm class for 27.5 cm and above. Fish weights were collected at sea for all fish aged. An eight stage maturity scale was used. Immature fish were defined as stages 1 & 2. |
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 | Fish | |
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 | 60 |
East | The eastern-most limit of the data resource in decimal degrees | -4 |
South | The southern-most limit of the data resource in decimal degrees | 55.5 |
West | The western-most limit of the data resource in decimal degrees | -10 |
Regional sea | 40E0 | |
41E0 | ||
42E0 | ||
43E0 | ||
44E0 | ||
45E0 | ||
40E1 | ||
41E1 | ||
42E1 | ||
43E1 | ||
44E1 | ||
45E1 | ||
46E1 | ||
40E2 | ||
41E2 | ||
42E2 | ||
43E2 | ||
44E2 | ||
45E2 | ||
46E2 | ||
41E3 | ||
42E3 | ||
43E3 | ||
44E3 | ||
45E3 | ||
46E3 | ||
47E3 | ||
44E4 | ||
45E4 | ||
46E4 | ||
47E4 | ||
46E5 | ||
47E5 | ||
48E5 | ||
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 | 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 | |
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. | 2016-04-08 |
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 |