Dataset

POPA- Fisheries Observer Program of the Azores: Turtle sightings in the Azores tuna fishery from 2000 on: during navigation or search mode.

EurOBIS MeasurementOrFact Open in mapper Explore occurrences

Sightings of turtles were recorded daily, at 6 different fixed periods (snap shots), when the boat was in navigation or search mode.

Citation: Machete, M.; Institute of Marine Research (IMAR), Portugal; Department of Oceanography and Fisheries, University of the Azores (DOP/UAC), Portugal; (2016): POPA- Fisheries Observer Program of the Azores: Turtle sightings in the Azores tuna fishery from 2000 on: during navigation or search mode. https://dx.doi.org/10.14284/13

Published: September 17, 2025 at 09:48

URL: http://ipt.vliz.be/eurobis/resource?r=popa_turtles_sightings_azores_1998_2013

Institute of Marine Research
Institute of Marine Research

University of the Azores; Department of Oceanography and Fisheries
University of the Azores; Department of Oceanography and Fisheries

3,621
occurrence records
3,621
measurements and facts
5
taxa
4
species

Taxa

Missing and invalid fields

Field Missing Invalid
maximumDepthInMeters 3,621
100.0%
minimumDepthInMeters 3,621
100.0%

Quality flags

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

Flag Dropped Records
NO_DEPTH 3,621
100.0%
ON_LAND 32
0.9%

Measurement types

DNA derived data