Dataset
OBIS UK MeasurementOrFact Open in mapper Explore occurrences
This dataset details approved records from the Shark Trust's Basking Shark Project. This dataset is in part comprised of records from the Marine Conservation Society's Basking Shark Watch (1986-2018), and data provided from the Manx Whale and Dolphin Watch.
Comprised of citizen science observations, records of Basking Sharks (sighted from land or at sea) from around the world have been complied to help better understand this species. Data comes mostly from ad-hoc records, with some observations recorded from more structured surveys and data uploads from partner organisations.
Citation: Allen H, Gordon C (2026). Basking Shark Project - global citizen science observations of Cetorhinus maximus. Version 1.1. Shark Trust. Samplingevent dataset. https://www.dassh.ac.uk/ipt/resource?r=st_baskingsharkproject&v=1.1
Published: April 30, 2026 at 08:50
First registration: April 30, 2026 at 08:59
License: This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License
URL: https://www.dassh.ac.uk/ipt/resource?r=st_baskingsharkproject
Contacts:
Harriet Allen
Shark Trust
Cat Gordon
Shark Trust
| Field | Missing | Invalid | |
|---|---|---|---|
| coordinateUncertaintyInMeters | 17,797 |
|
|
| maximumDepthInMeters | 17,797 |
|
|
| minimumDepthInMeters | 17,797 |
|
The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.
| Flag | Dropped | Records | |
|---|---|---|---|
| NO_DEPTH | 17,797 |
|
|
| ON_LAND | 1,966 |
|