Dataset

Mackerel and horse mackerel eggs

EurOBIS MeasurementOrFact Open in mapper Explore occurrences

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.

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

Published: September 09, 2024 at 16:57

URL: http://ipt.vliz.be/eurobis/resource?r=megs

International Council for the Exploration of the Sea
International Council for the Exploration of the Sea

Trevor Alcorn
Marine Institute Ireland

Flanders Marine Institute (VLIZ)
Flanders Marine Institute (VLIZ)

108,225
occurrence records
64,240
measurements and facts
19
taxa
16
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 108,225
100.0%
maximumDepthInMeters 6,313
5.8%
minimumDepthInMeters 108,225
100.0%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag Dropped Records
NO_ACCEPTED_NAME 9,413
8.7%
NO_DEPTH 6,313
5.8%
DEPTH_EXCEEDS_BATH 3,563
3.3%
ON_LAND 57
0.1%

Measurement types

DNA derived data