White logo MMRPUH with transparent islan

CONTACT US

      mmrphawaii@gmail.com

      MMRP

      Hawaii Institute of Marine Biology

      46-007 Lilipuna Road

      KANEOHE, HI 96744

      USA

      www.mmrphawaii.org

FOLLOW US

MMRP Disclaimer

  • Facebook - White Circle
  • Twitter - White Circle
  • Instagram - White Circle
  • YouTube - White Circle

 

MMRP DISCLAIMER

© 2018 by MMRP. All pictures are protected under Federal permits

CALIBRATING UAV PHOTOGRAMMETRY TO DERIVE DELPHINID POPULATION DEMOGRAPHIC PARAMETERS

This project aims to develop a method to rapidly assess delphinid population age structure. This will ultimately provide an assessment of population growth and survival rates, and early insight into whether there may be cause for concern for specific populations.

sea-life-park-logo_0.png
dolphin quest.png
White logo MMRPUH with transparent islan
JIMAR_color_300px.jpg
NOAA_Logo-Full.jpg
SMRU_Consulting_Horizontal_hires_800x136
 

Background Information

 

The power to detect population increases or declines using traditional photo-identification methods typically requires decades of data collection before changes in vital rates (e.g. survival, fertility etc.) manifest themselves as changes in population size. New technologies are available that enable assessment of group composition and population age structure, as well as measures of individual animal health that can ultimately provide assessment of population growth and survival rates, and early insight into whether there may be cause for concern for these populations. This study is the first phase of a multi-part study to assess the feasibility of determining population age structure that can be applied to smaller and mid-sized delphinids.

 

AIMS

The aims of the first phase of the project are to:

  • collect both UAV aerial images of dolphins housed at Sea Life Park (SLP), Hawaii, and actual hands-on measurements of dolphin length and girth;

  • calibrate and test the precision of UAV-obtained length measurements of dolphins housed at SLP by comparing UAV-derived length estimates with hands-on measurements of the dolphins.

 

Once precision estimates have been obtained, the next phases of the effort will use aerial photographs of free-ranging cetacean populations to measure animal length for comparison against published growth curves for those species to infer the age-class for individuals in free-ranging populations.

research team

Lars Bejder - MMRP

Fabien Vivier - MMRP

Cormac Booth - SMRU Consulting

Erin Oleson - NOAA/PIFSC

Amanda Bradford - NOAA/PIFSC

Marie Hill - NOAA/JIMAR

Kym Yano - NOAA/JIMAR

Aude Pacini - MMRP

Jeff Pawloski - SLP

Julie Rocho-Levine - DQ

 
 

PROJECT BLOGS