
Hawaiian Monk Seals Released Back to Kaua‘i and Oahu After Rehabilitation at Ke Kai Ola
- Malnutrition
- Species conservation
Endangered Hawaiian monk seals released back to Kaua‘i and Oahu after rehabilitation at Ke Kai Ola, a dedicated hospital for monk seals on Hawai‘i Island
The Marine Mammal Center, the world’s largest marine mammal hospital, successfully released two endangered Hawaiian monk seals back to Kaua‘i and Oahu after rehabilitation at Ke Kai Ola, the Center’s hospital and visitor center in Kailua-Kona that is dedicated to the endangered marine mammal.
The successful release of RK58 and Mele was made possible thanks to the Center’s partnership with the National Oceanic and Atmospheric Administration (NOAA), U.S. Coast Guard, Hawai‘i Department of Land and Natural Resources (DLNR), Hawaii Marine Animal Response (HMAR) and the Marine Mammal Response Network team on Kaua‘i.
To return two Main Hawaiian Island seals back to their ocean home is an incredible success story with the survival of each individual critical to the recovery of the population.
“To return two Main Hawaiian Island seals back to their ocean home is an incredible success story with the survival of each individual critical to the recovery of the population,” says Dr. Cara Field, Medical Director at The Marine Mammal Center. “This success story highlights the importance of our ongoing partnerships to help give these animals a second chance at life and save this species.”
The two seals spent more than two months in rehabilitative care for malnutrition and other ailments. RK58, a juvenile male, had a more challenging recovery after suffering severe trauma wounds to the head, neck and left front flipper from a suspected dog attack on Kaua‘i.
During their treatment, the underweight seals greatly improved in overall body condition and stamina. Both animals experienced remarkable weight gains during their short stay, with Mele, a young female rescued on Oahu due to her poor condition, nearly doubling in weight.
We are so grateful that The Marine Mammal Center was able to immediately activate and provide the intensive care that these two patients needed.
“We are so grateful that The Marine Mammal Center was able to immediately activate and provide the intensive care that these two patients needed,” says Dr. Michelle Barbieri, Lead Scientist for NOAA’s Hawaiian Monk Seal Research Program. “Their return to the wild is important for the future of the species and we are glad that they are back home.”
NOAA coordinated logistical and operational support for this extraordinary multi-island release in partnership with the U.S. Coast Guard and the Center. On Friday, March 26, the U.S. Coast Guard first flew RK58 to Kaua‘i and then Mele to Oahu via a C-130 aircraft, the safest and fastest mode of transport during the pandemic. Both animals were successfully released on the day of the transport.
Since 2014, the Center has rehabilitated and released 35 monk seals, most of which have been rescued from and returned to the Northwestern Hawaiian Islands (NWHI) as part of the partnership with NOAA, utilizing resources in the NWHI to identify seals in need, rescue and rehabilitate them, and give them a second chance at life.
The Center’s partnership with NOAA and other cooperating agencies is more important than ever to prevent this endangered species from becoming extinct. Approximately 30 percent of monk seals that are alive today are due to conservation efforts led by NOAA and partners like The Marine Mammal Center.
In recent weeks, the Center’s experts have reported a sharp uptick in the number of beachgoers on the Big Island as COVID-19-related travel restrictions have eased. This increase in the amount of foot traffic on local beaches comes as endangered monk seals that frequent the islands seek areas to come ashore to rest.
The Center’s experts kindly ask that beachgoers proceed with caution and look out for posted signage about resting seals. As a member of the Pacific Islands Region Marine Mammal Response Network, the Center is responsible for monitoring the seals that haul out, or spend time on land, on Hawai‘i Island.
As an essential business operating during the ongoing pandemic, the Center is committed to continuing its core mission work that includes advancing the conservation of threatened and endangered species.
How You Can Help
RK58’s story is an important reminder that beachgoers should keep themselves and their pets a safe distance from resting monk seals. The Center strongly encourages pet owners statewide to protect native wildlife by adhering to leash laws and reporting monk seal sightings on Hawai‘i Island to the Center’s response team at our hotline: 808-987-0765.
On Kaua‘i and Oahu, call NOAA’s statewide toll-free hotline at 1-888-256-9840.
For more information or to set up an interview on this topic, please contact us at media@tmmc.org.
Header image: photo by Sheila Latta © The Marine Mammal Center / NOAA permit #18786
Yes, I want to save a life!

Yes, I want to save a life!
You’ll be giving sick and injured animals the best possible care at the Center’s state-of-the-art hospital. With your gift today, you are giving a patient a second chance at life in the wild.
See Our Latest News
{"image":"\/Animals\/Patients\/Harbor seals\/cropped-images\/hs-group-with-hats-photo-by-bill-hunnewell-c-the-marine-mammal-center-34-0-1270-992-1750873865.jpg","alt":"Four harbor seals with small ID tags on their heads swim in a rehabilitation pool.","title":"How Our Patients are Named and Identified","link_url":"https:\/\/www.marinemammalcenter.org\/news\/how-our-patients-are-named-and-identified","label":"Patient Update","date":"2025-06-26 02:00:00"}

{"image":"\/Animals\/Wild\/Gray whale\/cropped-images\/gray-whale-oreo-by-josie-slaathaug-c-the-marine-mammal-center-108-0-1270-992-1750880575.jpg","alt":"Gray whale fluke above the water","title":"Los Angeles Times: The numbers of gray whales migrating along the California coast continue to plummet","link_url":"https:\/\/www.marinemammalcenter.org\/news\/los-angeles-times-the-numbers-of-gray-whales-migrating-along-the-california-coast-continue-to-plummet","label":"In the News","date":"2025-06-25 02:00:00"}

Los Angeles Times: The numbers of gray whales migrating along the California coast continue to plummet
June 25, 2025
Read More{"image":"\/Animals\/Wild\/Harbor seal\/cropped-images\/harbor-seal-pup-photo-by-Ruvim-Miksanskiy-251-0-1270-992-1750880392.jpg","alt":"Harbor seal pup resting on the beach","title":"ABC7 San Francisco: Animal trauma could be linked to bad human behavior, Bay Area marine mammal experts say","link_url":"https:\/\/www.marinemammalcenter.org\/news\/abc7-san-francisco-animal-trauma-could-be-linked-to-bad-human-behavior-bay-area-marine-mammal-experts-say","label":"In the News","date":"2025-06-24 02:00:00"}

ABC7 San Francisco: Animal trauma could be linked to bad human behavior, Bay Area marine mammal experts say
June 24, 2025
Read More{"image":"\/People\/Action\/Response\/cropped-images\/mbo-crew-es-rope-rescue-photo-by-lesley-simms-c-the-marine-mammal-center-2-0-0-1270-992-1749571082.jpg","alt":"MBO crew carrying a crate up a cliff","title":"The Marine Mammal Center reports high levels of marine mammal disturbance in Central and Northern California for third year in a row","link_url":"https:\/\/www.marinemammalcenter.org\/news\/the-marine-mammal-center-reports-high-levels-of-marine-mammal-disturbance-in-central-and-northern-california-for-third-year-in-a-row","label":"Press Release","date":"2025-06-10 02:00:00"}

The Marine Mammal Center reports high levels of marine mammal disturbance in Central and Northern California for third year in a row
June 10, 2025
Read Morespecies conservation
Cara Field
Hawaiian Monk Seal