Type-D Killer Whale Photo-Identification Catalogue for Depredating Individuals, 2003-2024
by Paul Tixier·Updated 8d ago
44.5 MB1files
Available on 1 platform
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Description
A 21-year photo-identification catalogue from 2003 to 2024 documents individual type-D killer whales involved in depredation on Patagonian toothfish longlines. Created by Paul Tixier, it includes images and associated data for whales around the Crozet, Kerguelen, Marion/Prince Edward Islands, and southern Chile. The catalogue provides high-quality photographs of dorsal fins, saddle patches, and eye patches, alongside sex, maternal relationships, and birth year information.
Use Cases
Tracking individual whale movements and site fidelity based on photo-identification across multiple regions.
Studying social unit structure and maternal relationships based on the documented associations and unit designations.
Analyzing depredation behavior patterns over time based on the long-term observation period.
Conducting population estimates and demographic studies based on individual sex and age class information.
Strengths
Covers a 21-year time span from 2003 to 2024.
Includes high-quality photographs of key identification features (dorsal fin, saddle patch, eye patches).
Documents individuals across multiple geographic regions in the Subantarctic and southeastern Pacific.
Limitations
Data is provided as a 44.5 MB PDF, which may require manual extraction for computational analysis.
Column-level documentation is absent; field semantics must be inferred from the PDF layout.
Row count is unknown, which may limit suitability assessment for statistical modeling.
Provenance
Source
Paul Tixier via figshare.
Collection Method
Photo-identification from field observations.
Time Range
2003 to 2024
Freshness
Last updated 2026-05-31 14:50:10; freshness should be verified.
Geography
Crozet and Kerguelen Islands (French Subantarctic), Marion/Prince Edward Islands (South African Subantarctic), southern Chile.
Data is in PDF format; users will need tools to extract images and structured data.