Tuesday, April 30, 2024

HPA Microplastics Workshop

Most plastics in the ocean break up into very small particles. These small plastic bits are called "microplastics." Other plastics are intentionally designed to be small. They're called microbeads and are used in many health and beauty products. They pass unchanged through waterways into the ocean.  Microplastics are of concern because of their widespread presence in the oceans and the potential physical and toxicological risks they pose to organisms.

Rachael Zoe Miller is a National Geographic Explorer, inventor and Explorers Club Fellow working to protect the ocean through expedition-based science, conservation and storytelling. She is the founder of Rozalia Project for a Clean Ocean, a nonprofit addressing marine debris through cleanup, education, innovation and solutions-based research. She is also a co-inventor of the Cora Ball, the world’s first microfiber-catching laundry ball, and sea life artist for Coraclip, a renewable alternative to wasteful virgin-to-landfill plastic bag clips. Miller leads teams on expeditions whose results are published in peer-reviewed journals and experiences translated into education programs; recent expeditions include sampling the entire Hudson River for microplastics in the air, water and soil; microplastic sampling from onboard the E/V Nautilus in the Hawaiian archipelago; and research in the Arctic and Antarctic with Lindblad Expeditions-National Geographic as a visiting Explorer/scientist. She and her team have received multiple awards and recognition, including Best VideoRay PR Story for using ROVs to find and remove marine debris, being named an Ocean Exemplar by World Ocean Observatory, and winner of the Most Innovative Idea in Microplastics from Think Beyond Plastic.

 
On Sunday HPA’s Marine Science team welcomed her to campus for a training on CSI for the oceans - using forensics to investigate microplastics pollution. 6 high school students and 4 HPA faculty members spent 5 hours learning how to assess microplastics in our oceans. The team collected water samples from 3 sites, returned to the lab to filter, collect and analyze any plastic microplastics in the water. The intention is to use this technique to assess microplastics in Hawai’i’s shorelines to add the global understanding of microplastics as well as enable HPA students to conduct independent studies investigating topics surrounding this issue.  

Friday, April 12, 2024

Hualalai Honu Health Assessment

 


Hualalai, Thursday, April 4, 2024

Laura Jim, Marc Rice and 8 HPA STRP students traveled to Hualalai Four Seasons Resort on  thursday (4/4/24) to capture, tag and conduct a health assessment of resident honu along the shoreline from Kumukea Beach to Kukio Beach.  We were joined by Tyler and Maika'i from the Hawaii State Division of Aquatic Resources and George Balazs for the work day.  We arrived at 0815 and  set up our work site.  The surf was pretty rough along Kumukea Beach and we had to move our capture work to Kukio Beach which is more protected.  We were able to capture two honu at Kumukea and 9 at Kukio Beach.  Six of the honu were new captures and 5 were recaptures from previous trips.  One of the recaptures (H76) had moved to Kukio from Mauna Lani where it had been captured and tagged in October of 2023 (a distance of ~25 miles).  

All 11 of the honu appeared healthy and were weighed, measured, tagged and released by the research team.  

Below are the growth rate calcuations for the 5 recaptures.  Note that H 76 was the honu that moved from Mauna Lani Bay to Kukio Bay some time between October 2023 and April 2024.

The table below shows the growth rates of the 5 recaptured turtles.













HPA Microplastics Workshop

Most plastics in the ocean break up into very small particles . These small plastic bits are called "microplastics." Other plastic...