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MEGS: Mackerel and horse mackerel eggs
Citatie
ICES. Mackerel and horse mackerel eggs. Available online at http://eggsandlarvae.ices.dk. Consulted on yyyy-mm-dd.

Toegang tot data
Gearchiveerde data
Beschikbaarheid: Gelicencieerd
Conditions of supply and usage of the data are specified in a formal agreement.

Nota: ICES Data Policy: http://www.ices.dk/marine-data/guidelines-and-policy/Pages/ICES-data-policy.aspx

Beschrijving
The survey existed since 1968. It is carried out every 3 years in the north eastern Atlantic. The year after the Atlantic survey, a mackerel egg survey is conducted in the North Sea. The survey creates a basis for the stock assessment of Atlantic and North Sea mackerel and management plan for Atlantic horse mackerel. The historical MEGS data is expected to be uploaded in 2015-2016. The group responsible for the survey is WGMEGS. meer

The working group on mackerel and horse mackerel egg surveys (WGMEGS) coordinates the Mackerel and Horse Mackerel Egg Survey in the Northeast Atlantic and the Mackerel Egg Survey in the North Sea, both which are carried out triennially. Eggdata collected from both surveys provide an indices for the strength of the SSB of both the western and North Sea stocks of Atlantic mackerel (Scomber scombrus) and a relative abundance index of horse mackerel (Trachurus trachurus) spawning stocks in the Northeast Atlantic. The surveys are divided into 3 geogr aphical component areas, the western, southern and the North Sea. In the western area the mackerel egg survey has been running continuously on a triennial basis since 1977 and since 1992 has also sampled the southern spawning component. It typically takes place between February and July and aims to cover the entire spawning area from Cadiz in the south up as far as NW Scotland in the North and since 2010 up to the waters around the Faroe Islands and southeast of Iceland. The egg survey in the North Sea has been running since 1968.

A comprehensive description of the survey protocols, analysis techniques together with the methods used for calculating the egg abundance estimates can be found in the WGMEGS survey manual which is contained within Annex 5 of the 2 012 WGMEGS


Scope
Thema's:
Biologie > Vis
Kernwoorden:
Marien, Fish eggs, Lange termijn monitoring, Monitoring, ANE, British Isles, Scotland, ANE, Portugal, ANE, Spain, ANE: Ireland, Irish Exclusive Economic Zone, Scomber scombrus Linnaeus, 1758, Trachurus trachurus (Linnaeus, 1758)

Geografische spreiding
ANE, British Isles, Scotland [Marine Regions]
ANE, Portugal [Marine Regions]
ANE, Spain [Marine Regions]
ANE: Ireland, Irish Exclusive Economic Zone

Spreiding in de tijd
Vanaf 1992 [Gestart]
Driejaarlijks

Taxonomische spreiding
Scomber scombrus Linnaeus, 1758 [WoRMS]
Trachurus trachurus (Linnaeus, 1758) [WoRMS]

Parameters
Abundance of eggs, Saliniteit, Watertemperatuur

Bijdrage door
International Council for the Exploration of the Sea (ICES), meerdata creator
Marine Institute Ireland (MI), meerdata eigenaar

Gerelateerde datasets
Maakt deel uit van:
Eggs and larvae, meer
Gepubliceerd in:
EurOBIS: European Ocean Biogeographic Information System, meer

Publicatie
Beschrijft deze dataset
ICES (2013). ICES Data Centre, Eggs and Larvae Data Fact Sheet, 2013. ICES: Copenhagen. 22 pp., meer
The Working Group on Mackerel and Horse Mackerel Egg Surveys (2014). Manual for the mackerel and horse mackerel egg surveys (MEGS): sampling at sea. Series of ICES Survey Protocols, SISP 6 - MEGS V1.3. ICES: Copenhagen. 62 pp., meer


Dataset status: Gestart
Data type: Data
Data oorsprong: Monitoring: veldonderzoek
Metadatarecord aangemaakt: 2010-07-15
Informatie laatst gewijzigd: 2017-09-26
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