Dataset

Aerial counts and breeding success monitoring of grey seal, Estonian national monitoring 2000-2016.

EurOBIS MeasurementOrFact Open in mapper Explore occurrences

Aerial and on-land counts of individuals and breeding success estimations (the number of offspring) of grey seal (Halichoerus grypus) recorded during Estonian national monitoring programme in 2000-2016. Breeding success was estimated through the enumeration of live and dead grey seal cubs.

Citation: Jüssi, I.; NGO Pro Mare (2019): Aerial counts and breeding success monitoring of grey seal, Estonian national monitoring 2000-2016.

Published: September 17, 2025 at 08:31

URL: http://ipt.vliz.be/eurobis/resource?r=est_grey_seals_00-16

Ivar Jüssi
Pro Mare

Lara Podkuiko
Tallinn University of Technology

522
occurrence records
2,095
measurements and facts
1
taxa
1
species

Taxa

Missing and invalid fields

Field Missing Invalid
coordinateUncertaintyInMeters 522
100.0%
maximumDepthInMeters 522
100.0%
minimumDepthInMeters 522
100.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 522
100.0%
ON_LAND 288
55.2%

Measurement types

DNA derived data