US Orca Pacific orca population record

Index

Record/Our Work/Field Research

03 — Our Work

Field Research

Field Research

Photo identification, acoustic monitoring and non-invasive sampling across a short field season.

Reporting figures

Year to 2026-09-07
Field days 2026
68
Photo-IDs logged
4,210
Hydrophone hours
6,600
Scat samples
41
Datasets shared
5

Assessment

Our field programme is deliberately non-invasive. We identify individuals from photographs of the dorsal fin and saddle patch, record vocalisations on moored and towed hydrophones, and collect floating scat for hormone and diet analysis. Nothing we do requires touching an animal.

The field season is short and weather-dependent. Most of the year is spent processing: matching photographs against the catalogue, annotating thousands of hours of audio, and running lab work on samples collected over a handful of good days.

Everything we collect goes into shared regional datasets. A population this small cannot be studied by one organisation, and data hoarding costs whales.

Plate. Field Research — programme in the field.

Key points

6 observations
  • 01Photo-ID against the regional catalogue
  • 02Moored and towed hydrophone arrays
  • 03Non-invasive scat sampling
  • 04Prey remains and diet analysis
  • 05Hormone assays for pregnancy and stress
  • 06All data shared into regional archives