Irish Spatial Data Exchange
Mackerel and Horse mackerel egg surveys 1992 - present
Every three years the ICES Working Group on Mackerel and Horse Mackerel Egg Surveys (WGMEGS) coordinates a major survey in the northeast Atlantic. These surveys cover the northeast Atlantic between the Gulf of Cadiz and currently the south coasts of Iceland and Faroes, between January and July. The surveys were started in 1977 by France and England. While these countries no longer participate the surveys have expanded and are currently carried out by ten nations. The aim of the survey is to relate the number of freshly spawned eggs in the water column with the number of females having produced these eggs. Knowing the fecundity of the females and the sex ratio of the population allows for the provision of an estimate of the spawning-stock biomass (SSB) (ICES 2018). The survey collects positional and CTD data, as well as a plankton haul at every ICES half statistical rectangle. All fish eggs are extracted from the plankton samples. These eggs are subsequently identified and their stage of development noted. During the surveys opportunistic fishing hauls are also carried out, to collect histological samples from female mackerel and horse mackerel. None
Simple
- Date (Publication)
- 2018-01-02
- Date (Revision)
- 2020-12-11
- Date (Creation)
- 2018-01-02
- Citation identifier
- ie.marine.data:dataset.1554
- Point of contact
-
Organisation name Individual name Electronic mail address Role Marine Institute
Originator
- Maintenance and update frequency
- As needed
- Marine Strategy Framework Directive indicators 2010/477/EU
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- Distributional range
- Distributional pattern within the range
- Population abundance and/or biomass
- Composition and relative proportions of ecosystem components
- Trends in abundance, temporal occurrence and spatial distribution of non-indigenous species
- Ratio between invasive non-indigenous species and native species
- Performance of key predator species
- Abundance trends of functionally important selected groups/species
- 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:dataset.883
- Association Type
- Cross reference
- Initiative Type
- Mission
- Aggregate Datasetindentifier
- ie.marine.data:dataset.1014
- Association Type
- Cross reference
- Initiative Type
- Mission
- Aggregate Datasetindentifier
- ie.marine.data:dataset.1551
- Association Type
- Cross reference
- Initiative Type
- Mission
- Aggregate Datasetindentifier
- ie.marine.data:dataset.1675
- Association Type
- Cross reference
- Initiative Type
- Mission
- Aggregate Datasetindentifier
- ie.marine.data:dataset.1760
- Association Type
- Cross reference
- Initiative Type
- Mission
- Aggregate Datasetindentifier
- ie.marine.data:dataset.1763
- Association Type
- Cross reference
- Initiative Type
- Mission
- Aggregate Datasetindentifier
- ie.marine.data:dataset.1837
- Association Type
- Cross reference
- Initiative Type
- Mission
- Aggregate Datasetindentifier
- ie.marine.data:dataset.2055
- Association Type
- Cross reference
- Initiative Type
- Mission
- Spatial representation type
- None
- Language
- English
- Begin date
- 1992-01-01
- End date
- ..
- Reference system identifier
- INSPIRE RS registry / http://www.opengis.net/def/crs/EPSG/0/None
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
http://www.marine.ie
- 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.1554 XML
- Metadata language
- English
- Hierarchy level
- Dataset
- Date stamp
- 2020-12-11
- 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
