Recorded sightings of marine mammals close to the boat and/or interacting with the fishery, while tuna fishing.

Citation: Machete, M.; Institute of Marine Research (IMAR), Portugal; Department of Oceanography and Fisheries, University of the Azores (DOP/UAC), Portugal; (2014): POPA- Fisheries Observer Program of the Azores: Marine mammal sightings in the Azores tuna fishery from 1998 to 2013: while fishing. https://dx.doi.org/10.14284/16

Published: September 17, 2025 at 09:49

URL: http://ipt.vliz.be/eurobis/resource?r=popa_marine_mammals_sighting_during_fishery_operation_1998_2013

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

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

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

1,583

occurrence records

taxa

species

Taxa

Missing and invalid fields

Field	Missing
coordinateUncertaintyInMeters	1,583	100.0%
maximumDepthInMeters	1,583	100.0%
minimumDepthInMeters	1,583	100.0%

Quality flags

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

Flag	Dropped	Records
NO_DEPTH		1,583	100.0%
ON_LAND		3	0.2%

POPA- Fisheries Observer Program of the Azores: Marine mammal sightings in the Azores tuna fishery from 1998 to 2013: while fishing

Taxa

Missing and invalid fields

Quality flags

Measurement types

DNA derived data