STRETCH UPDATES - COHORT 3

Cohort II STRETCH loggerhead Locations as of the last two days.

June 27, 2025

The 28 STRETCH turles of Cohort III are safely on the ship and Koki and Yuki are taking good care of them. We will keep up to date on their whereabouts as they begin their journey to the release point. The captain has suggested a release point approximately 1/2 way between the release points of Cohorts I and II and The water temperature in that area is ~23 degrees C which is a safe temperature for the release.

The MOL ship Neptune Ace has departed Nagoya and is currently on its way to Yokohama, Japan. Koki and Yuki are on board and caring for our 28 STRETCH Cohort III turtles! (information from: vesselfinder.com).

June 26, 2025

Today, the STRETCH team and the PNPA personnel transported the 28 juvenile loggerheads of Cohort III to the Port of Nagoya and loaded them onto the MOL ship Neptune Ace to begin their journey to release in the northeast Pacific Ocean.

Cohort III turtle number 62 carrying a Splash 10 tag and an experimental solar powered mini tag (posterior to the Splash tag) .

June 25, 2025

The STRETCH project, from its enception, has given the juvenile loggerheads released with satellite tags names that honor the countries and organizations that have a unique interest in the North Pacific Loggerheads. Mexico, United States, Japan, Hawaii, Port of Nagoya Public Aquarium, Kochi University and the Mitsui O.S.K. Lines, ltd all have provided support for this very large and important project.

This year, we asked Mitsui O.S.K. Lines (MOL) to provde 13 names of their choosing to honor their support of the project. Without their ships, we would never have been able to deploy the juvenile loggerheads out in the northeast Pacific Ocean.

Below is the list of names provided by MOL for 13 of the Cohort III loggerheads.

A note from Miwako Ueno (Bunker Procurement Strategy Team, MOL) regarding the chosen Japanese names:

"For this naming project, I chose traditional Japanese names inspired by ancient shades of blue. These names reflect the graceful appearance and mysterious nature of the loggerhead sea turtles—guardians of the sea—and blend them with the delicate aesthetic sensibilities of Japanese culture.

Through names like Ruri, Ai, and Asagi, which evoke the beauty of the blue ocean, I hope more people will become aware of the importance of marine conservation, the preciousness of nature, and the interconnectedness of life. I wish for these names to inspire action to protect the future of our oceans."

Here are the names I gave to the 13 turtles:

Ai (藍) – A deep indigo blue, symbolizing the turtle’s strength and the calm of the deep sea.

Asagi (浅葱) – A refreshing blend of blue and green, reflecting the turtle’s graceful swimming and the clear ocean.

Gunjo (群青) – A vivid deep blue, representing hope for the future and the beauty of the deep sea.

Ruri (瑠璃) – A mystical, brilliant blue, expressing the turtle’s mysterious nature and the fantasy of the deep ocean.

Konpeki (紺碧) – A rich summer-sky blue, symbolizing vitality and the color of the summer sea.

Ama (天) – A clear sky blue, representing the turtle’s freedom and the vastness of the sea.

Seiji (青磁) – A soft blue-green, reflecting the turtle’s gentle features and the calmness of the ocean.

Mizu (水) – A pale, clear blue, symbolizing the turtle’s pure eyes and the clarity of the sea.

Sora (空) – A bright sky blue, expressing the turtle’s freedom and the brightness of the ocean.

Seiran (青藍) – A deep purplish blue, a fantastical name that reflects the turtle’s profound nature and the colors of the deep sea.

Hanada (縹) – A rich blue like a peaceful ocean, representing the turtle’s serene journey and the depth of the sea.

Heki (碧) – A greenish blue, expressing the turtle’s graceful swimming and harmony with nature.

Seigaiha (青海波) – A traditional wave pattern symbolizing peace and prosperity, reflecting the turtle blending into the waves and our wish for lasting harmony.

June 23, 2025

The team assemble at the PNPA for the third and final time this morning. We have 10 more to do and we will work them out this morning.

We arrived at the aquarium at 0900 h and got the last 10 turtles out and cleaned them. The team worked pretty efficiently and by 1100 h we had tags attached to all 10 juvenile loggerheads. They just needed to be painted with antifouling paint and they could be returned to their baskets. They will be loaded onto the Neptune Ace ship on June 26 to begin their trip to the northeast Central Pacific ocean where they will be released.

As of today there are 19 of the 28 Cohort II tags still transmitting And their current locations can be viewed on the map above and their entire tracks can be seen by going to loggerheadstretch.org/maps.html

The third day's attachment work is nearly completed. Here is the team that did the attachment work today.

June 22, 2025

Today markes the second day of tag attachment work at the PNPA.

Today we will work on attaching 10 more satellite tags to 10 juvenile loggerhead turtles of Cohort III.

We arrived at the PNPA and started work immediately. Our goal for the day was to attach two more Splash 10 + TTT (tiny turtle tags), 2 Spot 6 + TTT, and 6 more with just the Spot 6 tags.

We were successful in getting all of those tags attached and below are some images of our work today. We have completed tagging of 18 of 28 juvenile turtles. Tomorrow we will finish the last 10 and then they will be ready to board the ship for deployment on June 26.

The STRETCH team arrive at the PNPA for their second day of work.

Scrubbing the carapace and rinsing the juvile loggerheads.

Cleaning the turtles with the bridge to PNPA in the background.

Performing an oral exam.

Putting fiberglass cloth and polyester resin on to attach the satellite tag.

Attaching a Splash 10 tag.

Applying anti-fouling paint to prevent growth of algae and sessile inverts.

Cleaning up the tag and removing covers off of the contact points.

June 21, 2025

The STRETCH team assembled at 0800 and made our way to the PNPA to begin our work day. Today we will do 8 turtles in total, starting our with a Splash 10 tag and a Mini tag combo- through a special arrangement with Wildlife computers. We arrived at the aquarium at 0845 and began work by bring up the turtle for the Splash tag. Over the course of the day we were able to place satellite tags on 8 of the 28 juvenile loggerheads raised by PNPA.

Below are some pictures from the day's work:

Team members preparing the carapace for attachment of the tags.

Our first Splash 10 + Mini tag turtle.

Sanding the scutes in preparation for satallite tag attachment.

Recording the data / IDs for each of the 8 turtles.

Adding polyester resin to glass cloth to attach the satellite tag to the carapace of a juevenile loggerhead turtle.

Adding the final resin coating to the tags.

Adding a coat of anti biofouling paint to the tags.

Returning the satellite tagged turtles to their baskets for the night

Returning our tagged turtles to their baskets for the night.

Explaining the project to a Japanese TV news crew.

The STRETCH team at the end of the first day of satellite tag attachment.

Looking at how a WC mini tag might look on a one year old juvenile loggerhead.

June 20, 2025

The STRETCH Attachment team is assembling in Nagoya at this time. We are scheduled to gather together at our hotel and then travel as a team to the Port of Nagoya Public Aquarium.

We all meet at the Crown Plaza Hotel and made out way to the Port of Nagoya Public Aquarium and arrive there around 1400 h. Noah meet us and guided us to the aquarium to meet with Masanori Mori (Head Turtle Biologist for PNPA and the person who has raised all of our three cohorts of juvenile loggerhead turtles. We proceeded to go to take a look at the young turtles of Cohort IV that are being raised at PNPA for the 2026 release.