Please select your home edition
Edition
Palm Beach Motor Yachts

What's the latest on Hawaiian monk seals?

by NOAA Fisheries 16 Mar 2018 14:04 PDT
Hawaiian Monk Seal © NOAA Fisheries

Population update

NOAA Fisheries announces a status update on the Hawaiian monk seal population for 2017 with some positive signs for recovery as well as some persistent threats.

  • The Hawaiian monk seal population remained stable in 2017, with close to 1,400 seals estimated across the species range.
  • It was a good year for monk seal pups: 161 pups were counted in the Northwestern Hawaiian Islands and 34 in the main Hawaiian Islands (including everyone’s favorite famous pup, "Kaimana").
  • The overall population trend is positive, showing a 2% annual growth rate since 2013 (when range-wide estimates were initiated).
  • While recent population growth offers encouraging signs that strong conservation efforts can lead to progress, the monk seal population remains just over one-third of historic (1950s) levels. This highlights the importance of continued dedication to aid the recovery of this unique Hawaiian species.

Regional trends

Hawaiian monk seals are found only in Hawai‘i. Their population stretches across the archipelago from Hawai‘i Island, throughout Papahanaumokuakea Marine National Monument, to Kure Atoll. Population trends and threats differ from place to place across this large range.

  • The recent positive trend in population numbers was largely due to years of improved juvenile survival in the Northwestern Hawaiian Islands, an important turn-around from previous patterns in this region.
  • Populations in the main Hawaiian Islands appear to be leveling off after a period of expansion from the 1990s–early 2000s.
  • While there have been no signs of ecological limitation in the main Hawaiian islands—pupping rates are still excellent for the species and animals appear in robust condition—several anthropogenic threats have the potential to limit recovery of monk seals in the main islands.
Threats

Threats in the Northwestern Hawaiian Islands include food limitation, shark predation (particularly at French Frigate Shoals), aggressive male seals, and entanglement in marine debris. The "big three" threats facing monk seals in the main Hawaiian Islands are toxoplasmosis, trauma, and interactions with shorecasting fishing gear and lay gill nets.

  • Interactions with shorecasting gear pose a serious danger to seals, especially if the hooks are ingested. In 2017, 19 seals were observed hooked (two more with just fishing line). NOAA successfully removed seven of the hooks and cut three lines.
  • Unattended nets are a grave threat to monk seals, if a seal becomes entangled in a net it could drown within minutes. In 2017, one seal was found dead in a lay gillnet and others were reported interacting with nets.
  • Toxoplasmosis has emerged as a particularly harmful disease to Hawaiian monk seals. While disease may seem like a "natural" cause of mortality, toxoplasmosis is perpetuated by free-roaming cats, and thus linked to human alteration of the environment.
  • Trauma continues to be a sad threat to monk seals. In 2017, two seals died due to trauma that appeared to be human-inflicted. NOAA investigates these cases and continues to work with communities to improve coexistence with Hawaii's marine animals.

Interventions

NOAA Fisheries makes great efforts to intervene and mitigate threats to monk seal survival.

  • In 2017, NOAA was able to help 71 seals in the Northwestern Hawaiian Islands, thanks to the presence of staff in remote field camps.
  • Interventions included disentangling trapped animals, moving pups from shark-prone beaches, rehabilitating malnourished juveniles, and more.
  • The NOAA team intervened to help 22 seals in the main Hawaiian Islands, including de-hooking, translocating away from dangerous areas, and treating health issues.
  • The NOAA monk seal team has been working hard to vaccinate monk seals against morbillivirus (a measles-like virus that can threaten marine mammals) and made major headway in 2017 by vaccinating nearly half of the population.

Community involvement

Heralded as "The Year of the Monk Seal," 2017 brought a surge of community involvement in monk seal stewardship that is encouraging to the species' conservation.

  • Awareness of monk seals grew as the community watched young pup RJ58 ("Kaimana") grow up at Kaimana beach park. Community support for this seal pup was heartwarming, from news coverage to children's books and social media pages that kept the enthusiasm going.
  • Local businesses stepped up for monk seal conservation, developing new monk seal-themed products and hosting special events.
  • The number of volunteers helping to report seal sightings and monitor seals increased.
  • Community groups also showed their support for monk seals in the past year—whether that support was producing a monk seal video, helping with beach clean-ups, or assisting citizen science efforts—it's encouraging to see Hawaiian monk seal conservation growing from the seeds of agency efforts to take root in the island community.

Related Articles

Summer Youth Olympic Games equipment confirmed
Dakar 2026 will feature 2 sailing events in the Techno293 World Sailing is pleased to announce the selection of Techno293 as the equipment used in competition at the upcoming Summer Youth Olympic Games Dakar 2026, being held from 31 October to 13 November 2026. Posted today at 6:08 am
America's Cup entries open on Sunday
A Cup in turmoil - has Grant Dalton dodged a bullet with the new Cup organisation? Updated story: America's Cup got underway in Rome on Monday, with Round 2 of the official welcoming ceremonies on Wednesday in Naples. Emirates Team NZ CEO Grant Dalton appears to have dodged a bullet with the formation of of new AC organising body. Posted today at 4:18 am
Giorgio Armani Superyacht Regatta day 1
Ideal conditions for starting the Southern Wind RendezVous and Trophy The 2025 edition of the Giorgio Armani Superyacht Regatta, organised by the YCCS with the support of title sponsor Giorgio Armani, got under way right on time today, 28 May 2025 at 11.30 a.m. on the waters off Porto Cervo. Posted on 28 May
The international entries taking on Transpac
Aloha to competitors from outside the USA Transpac's reputation as one of the premier offshore regattas always draws a contingent of sailors from all over the world. Posted on 28 May
America's Cup Power Plays
And Growing Sailing Through Learning There's always so much speculation and intrigue in-between each edition of the America's Cup. Everyone wants to know what is happening behind closed doors, inside the teams, and when the Challengers meet with the Defender. Posted on 28 May
2025 is going to be a huge season for IMOCA
Antoine Mermod talks about the season ahead Over the next four years the most exciting monohull class in world offshore ocean racing will take on no less than 17 races, covering tens of thousands of miles of the world's oceans. Posted on 28 May
America's Cup enthusiastically received in Naples
The Castel dell'Ovo, was the venue for the arrival of the America's Cup in Napes The Castel dell'Ovo, set on the tuft peninsula of Megaride was the outstanding setting for the Official Host Venue Presentation of the Louis Vuitton 38th America's Cup. Posted on 28 May
CYCA team to take best shot at the Admiral's Cup
The Australian flag will fly proud on Zen and Back 2 Black The Australian flag will fly proud on Zen and Back 2 Black during the Admiral's Cup to be held in Cowes from the Isle of Wight from 17 July - 1 August. Posted on 28 May
78th Annual Block Island Race
A test of grit, teamwork, and offshore strategy The 78th edition of the Block Island Race, hosted by the Storm Trysail Club, delivered classic Northeast spring conditions and a course that tested every sailor's resilience, tactics, and teamwork. Posted on 28 May
Doyle Sails: Ragtime blends retro and modern
Launched in 1966, Infidel now Ragtime Sailing, has celebrated her 60th year with a refit Tina Roberts has beautifully restored Ragtime Sailing in honour of her late partner's wishes, choosing Doyle Sails not only for the world-class sails but for the depth of experience, personal commitment, and collaborative support that define the team. Posted on 28 May
Mackay Boats 728x90 BOTTOMNorth Sails Loft 57 PodcastSea Sure 2025