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Archive for the ‘RL58’ Category

Some monk seals like to roam far and wide, as we recently wrote about a few of those seals that have made the journey across the 80-mile, point-to-point Kaʻieʻie Waho Channel from Kauai to Kaena Point on Oahu.

Then, there are another group of seals. Those that stick close to home and can be counted on to appear in a handful of locations. The young RL58 is fast-becoming one of the most predictable to haul out in the same general location day after day–nearly 70 times year-to-date–very near her natal beach.

RL58 was the fifth-born pup of 2019. She was born to the famed RH58, also known as Rocky, and nursed for 45 days. She wasn’t the largest of weaners we’ve seen, measuring 118 cm long and 96 cm around (girth) at weaning; however, she’s survived the most crucial year of her life. She turned one-year-old on July 20th.

RL58 has also been described as “feisty,” a characteristic that likely came in handy in those early days post-weaning when rough-housing with other young seals. She also shows great equanimity when large older male seals occasionally haul out near her.

During her first year, RL58 has also experienced two significant cookie cutter shark bites–one near her genital slit and the other above her right fore flipper. Both wounds healed quickly and completely. She appears in a good healthy condition.

Now that RL58 has turned one year old, we start to think about RH58–who has been sighted on Oahu looking pregnant. In fact, her estimated due date is August 4th. If she behaves like she has so many times before, she’ll make the journey across the Kaʻieʻie Waho Channel a few days before her due date, appearing on her natal beach a day or night before giving birth again. So, we may have another pup soon.

Here is RL58 in one of her regular spots, a lava rock intertidal area a short distance down the coastline from her natal beach.

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Monthly Update: The Kauai team logged 180 seal sightings this month. This included 32 individually identified seals.

December: 180
November: 223
October: 258
September: 203
August: 324
July: 239
June: 179
May: 262
April: 348
March: 350
Feb: 303
Jan: 284

New:

  • Subadult female R7AA was sighted with a medium sized circle hook in her left cheek. The Kauai team responded and were able to capture her on the beach and remove the hook without complications. A 2-foot heavy gauge monofilament leader and pigtail swivel was attached to the hook which presented a serious entanglement and drowning hazard. The seal was immediately released and has been sighted since with no signs of infection.
  • An untagged adult female that has not been sighted on Kauai previously hauled out at Poipu and has since become a somewhat regular seal on the south shore. This seal was previously sighted on Niihau in 2017 with a pup and has an ID of R371. She has numerous scars and can be easily identified, even without flipper tags.
  • Another untagged Niihau adult female was sighted for the first time on Kauai’s north shore. Her ID is R367.
  • Another untagged likely Niihau seal molted at a remote east side beach. He is a new seal to Kauai and has a temp ID of Temp361.
  • Yearling RL58 observed with a large fresh cookie cutter shark bite very close to the genital slit. The seal was closely monitored for possible infection, and the seal has quickly recovered.
  • A volunteer observed a tourist attempt to pet the large adult female RK90 at a west side beach. The seal responded by leaving the beach. Outreach was conducted by the volunteer.

Updates:

  • RH38, the seal rehabbed at KKO and released in July, continues to thrive on north shore. Her tracking tag remains attached, however the battery has died so no further data is being transmitted.
  • All of the 6 pups born this year have been sighted recently and continue to thrive.
  • Displacements: No displacements this month.
  • Molting: Adult male RN02 spent 3 weeks at the busy Poipu Beach in pre-molt, molt, and post-molt which required extensive volunteer coverage. One other seal molted this month in less busy areas.
  • Vaccinations: A booster morbillivirus vaccine was given to new juvenile seal R1NI.
  • Bleach marking: none this month.

Research/Support of PIFSC

  • Sub-sampled scat, molt, and tissue plug samples accordingly.
  • Logged all seal sightings for PIFSC database. Organized photos and reported sightings, molt tallies, survival factors to send to PIFSC.

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The Kauai team logged 203 seal sightings this month. This included 31 individually identified seals.

September: 203
August: 324
July: 239
June: 179
May: 262
April: 348
March: 350
Feb: 303
Jan: 284

New:

  • A second pup was born at a remote beach along Na Pali Coast. The ID of the mother is unknown, but likely the same Niihau female that has pupped on that beach the past two Septembers, R400. Tour boats and kayak companies are providing updates.

Updates:

  • Sub-adult female R7AA was seen with small lump under left jaw line on 8/31/19, possibly a small abscess. The seal has not been re-sighted since. The plan is to closely monitor.
  • RH58 (Rocky) successfully weaned her female pup, PK5. The pup was flipper-tagged and vaccinated and now has an ID of RL58.
  • RK30 successfully weaned her female pup, PK6. The pup was flipper-tagged, and the seal’s ID is now RL30.
  • RH38, the seal rehabbed at Ke Kai Ola and released in July, continues to thrive on the north shore.
  • The first three 2019 pups (RL08, RL52, and RL28) continue to be sighted in good condition at various north and east shore beaches.
  • Displacements: No seals were displaced this month.
  • Molting: Four seals were observed molting this month.
  • Vaccinations: PK4 and PK5 were vaccinated during pup tagging and received booster vaccinations three weeks later.
  • Bleach marking: One seal was bleach marked this month.

Research/Support of Pacific Islands Fisheries Science Center:

  • Sub-sampled scat, molt, and tissue plug samples accordingly.
  • Logged all seal sightings for PIFSC database. Organized photos and reported sightings, molt tallies, survival factors to send to PIFSC.

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Another pup has graduated to “weaner-hood” and received her (yes, female) official flipper tags. Meet RL58. Her mom, the renowned RH58 (Rocky), nursed PK5 for 45 days.

At tagging, RL58 measured 118 cm long and 96 cm around (girth). She’s reportedly doing well, even holding her own with RN44 (male) who has been spotted wrestling and swimming with her. A feisty female is good;-)

Here are some photos of her post-tagging.

(PC: M. Olry)

RL581

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