Irish Spatial Data Exchange
CE0701 Northwest Herring Acoustic Survey
This survey was conducted by the Marine Institute in winter 2007 as part of the North West Herring Acoustic Survey. The aim of an acoustic survey is to determine the relative abundance of the target species. This information is then used to determine catch rates and management advice for the following year. The northwest and west coast (ICES Divisions VIaS and VIIb) herring acoustic survey programme was first established in 1994. The stock in this area is composed of 2 of spawning components (autumn and winter), covering a large geographical area. Spawning occurs over a protracted period of over 4-months from late September through to late March. Since 2004 the acoustic survey has been carried out on-board the RV Celtic Explorer. The 2007 survey took place off the North West coast of Ireland, covering the area to the east of Malin Head in Co.Donegal (ICES Division VIaS) and extended west and south along the north western seaboard covering the main bays and inlets into VIIb. The survey started in the south and worked in a northerly direction to facilitate the timing of spawning within stock components. A parallel transect design was adopted with transects running perpendicular to the coastline and lines of bathymetry, where possible. Offshore extension reached up to 33 nmi (nautical miles). The acoustic data were collected using the Simrad ER60 scientific echosounder. For biological sampling, a single pelagic midwater trawl was used. 19 trawls were carried out. All components of the catch from the trawl hauls were sorted and weighed; fish and other taxa were identified to species level. Length measurements of herring, sprat and pilchard were taken. Oceanographic stations were carried out during the survey at 20 predetermined locations along the track. Not all stations were sampled due to weather conditions. Data on temperature, depth and salinity (CTD) were collected. Visual marine mammal and seabird surveys were also conducted during daylight hours. The aim of the acoustic survey is to determine the relative abundance of the target species, herring. This information is then used to determine catch rates and management advice for the following year. Other objectives include collecting physical oceanography (CTD) data and visual surveys for marine mammals and seabirds.
Simple
- Date (Publication)
- 2017-11-21
- Date (Revision)
- 2023-06-01
- Date (Creation)
- 2017-11-21
- Citation identifier
- ie.marine.data:dataset.1007
- Point of contact
-
Organisation name Individual name Electronic mail address Role Marine Institute
Originator
- Maintenance and update frequency
- As needed
- Use limitation
-
While every effort is made in preparing the dataset no responsibility is accepted by or on behalf of the Marine Institute for any errors, omissions or misleading information. The Marine Institute accepts no responsibility for loss or damage occasioned or claimed to have been occasioned, in part or in full, as a consequence of any person acting, or refraining from acting as a result of a matter contained in this datasets or as a consequence of using this dataset for any purpose whatsoever.
- Use limitation
-
A Creative Commons (CC) license is one of several public copyright licenses that enable the free distribution of an otherwise copyrighted work. A CC license is used when an author wants to give people the right to share, use, and build upon a work that they have created. Under Creative Commons CC BY 4.0 the following is granted: Rights Share — copy and redistribute the material in any medium or format; Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Requirements Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
- Access constraints
- CC%20BY%204.0
- Aggregate Datasetindentifier
- ie.marine.data:instrument.45
- Association Type
- Cross reference
- Initiative Type
- Sensor
- Aggregate Datasetindentifier
- ie.marine.data:instrument.190
- Association Type
- Cross reference
- Initiative Type
- Sensor
- Aggregate Datasetindentifier
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- Association Type
- Cross reference
- Initiative Type
- Sensor
- Aggregate Datasetindentifier
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- Association Type
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- Initiative Type
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- Association Type
- Cross reference
- Initiative Type
- Sensor
- Aggregate Datasetindentifier
- ie.marine.data:instrument.1291
- Association Type
- Cross reference
- Initiative Type
- Sensor
- Aggregate Datasetindentifier
- ie.marine.data:instrument.1293
- Association Type
- Cross reference
- Initiative Type
- Sensor
- Aggregate Datasetindentifier
- ie.marine.data:instrument.1415
- Association Type
- Cross reference
- Initiative Type
- Sensor
- Aggregate Datasetindentifier
- ie.marine.data:instrument.1416
- Association Type
- Cross reference
- Initiative Type
- Sensor
- Aggregate Datasetindentifier
- ie.marine.data:instrument.1417
- Association Type
- Cross reference
- Initiative Type
- Sensor
- Aggregate Datasetindentifier
- ie.marine.data:platform.33
- Association Type
- Cross reference
- Initiative Type
- Platform
- Aggregate Datasetindentifier
- ie.marine.data:dataset.845
- Association Type
- Cross reference
- Initiative Type
- Collection
- Aggregate Datasetindentifier
- ie.marine.data:dataset.709
- Association Type
- Cross reference
- Initiative Type
- Collection
- Aggregate Datasetindentifier
- ie.marine.data:dataset.726
- Association Type
- Cross reference
- Initiative Type
- Collection
- Aggregate Datasetindentifier
- ie.marine.data:dataset.854
- Association Type
- Cross reference
- Initiative Type
- Collection
- Aggregate Datasetindentifier
- ie.marine.data:dataset.1231
- Association Type
- Cross reference
- Initiative Type
- Collection
- Aggregate Datasetindentifier
- ie.marine.data:dataset.848
- Association Type
- Cross reference
- Initiative Type
- Collection
- Spatial representation type
- Grid
- Language
- English
- Begin date
- 2007-01-03
- End date
- 2007-01-23
))
- Reference system identifier
- INSPIRE RS registry / http://www.opengis.net/def/crs/EPSG/0/3857
- Distribution format
-
Name Version CSV CTD Data
CSV Underway Data
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
http://www.marine.ie
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
https://www.marine.ie/Home/site-area/areas-activity/fisheries-ecosystems/acoustic-surveys
- Hierarchy level
- Dataset
Conformance result
- Title
-
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Date (Publication)
- 2010-12-08
- Explanation
-
See the referenced specification
- Pass
- Yes
- Statement
-
Data supplied by Marine Institute.
Metadata
- File identifier
- ie.marine.data:dataset.1007 XML
- Metadata language
- English
- Hierarchy level
- Collection session
- Date stamp
- 2025-02-21T18:12:23.294346Z
- Metadata standard name
-
ISDI Metadata Profile
- Metadata standard version
-
1.2
- Metadata author
-
Organisation name Individual name Electronic mail address Role Marine Institute
Point of contact
)))
