Feeds:
Posts
Comments

Archive for the ‘RK90’ Category

Field Report: January 2020

Monthly Update: The Kauai team logged 319 seal sightings this month. This included 39 individually identified seals.

January 319
December: 180
November: 223
October: 258
September: 203
August: 324
July: 239
June: 179
May: 262
April: 348
March: 350
Feb: 303

New:

·       As a volunteer arrived to assess a seal that had recently hauled out, she observed a man poking adult female R1KY with a stick. The volunteer conducted outreach and found the seal resting normally.

·       The general public reported that a small seal hauled out at Shipwrecks Beach on the south shore and was quickly chased back into the water by an off-leash dog. The seal was unharmed.

Updates:

·       Subadult female R7AA, dehooked the previous month, was re-sighted 4 times in January in good condition and completely healed from the hooking.

·       Five of the six pups born in 2019 have been sighted recently and continue to thrive, the sixth is likely on the remote Na Pali Coast.

·       Displacements: RJ36 was displaced (with permission from NOAA) from the Poipu Keiki Pool for the first time. Two weeks later he hauled out on the Keiki Pool Beach again, but was in an unsafe location for displacement so was not hazed off the beach.

·       Molting: RN44 molted at a remote north shore beach and RK90 molted at a remote west side beach, requiring little volunteer response and outreach effort. Adult female R313 also appears freshly molted.

·       Bleach marking: 2 applied 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.

Read Full Post »

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.

Read Full Post »

Field Report: March

Monthly Update:
The Kauai team logged 350 seal sightings in March. This included 38 individually identified seals.

March: 350
Feb: 303
Jan: 284
Dec: 153
Nov: 145
Oct: 203
Sep: 199

New:

  • Yearling female RKA6 was de-hooked by the Kauai team and immediately released. The hook was a large circle hook with 5 m of heavy monofilament trailing. The seal has fully recovered.

Updates:

  • Adult female RB00 weaned her pup after 54 days of nursing. He was tagged as RL08 in April.
  • RK58 was reared at Ke Kai Ola from August 4, 2018 until released on Feb 13, 2019 after a 3 day soft-release. The seal has remained in the release area, has shown no signs of interest in humans, and is interacting normally with other seals in the area. He also molted this month and lost his satellite tag. He was only 8 months old when he molted, which is unusual as the first molt is usually between 12-16 months of age.
  • Displacements: No seals were displaced from the keiki pool. However, adult female RK90 began hauling out at and spending the nights at a beach that’s considered unsafe due to trucks driving on the beach. Therefore, RK90 was displaced (with the proper NOAA approvals and staff) off the beach at sunset five times, twice along with adult male RK05. RK90 continues to return to this beach several times per week but has begun foraging at night again, eliminating the need for further displacement. Close monitoring of this beach continues.
  • Bleach markings: 3 were applied this month.
  • Molting: 2 seals molted 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.

Read Full Post »

Happy holidays from RK90, your very pregnant sleepy Hawaiian monk seal.

IMG_4836

It’s starting to look a lot like RK90 is pregnant again. She looked much like this last year this time. Then, she disappeared only to re-appear on Kauai in mid-February. It’s presumed she pupped on Niihau–her first known pupping event–which is a good indication that she herself was born there.

RK90 first appeared on Kauai as a juvenile in 2013 with a fish hook in her mouth. It was removed, and at the same time she was flipper-tagged. In May 2017, she turned up again with a large fish hook sticking out of her mouth. It, too, was removed successfully.

In February of this year, RK90 hauled out at the keiki pool in Poipu and was displaced. (Please remember displacements require skilled training and, as always, prior approval from NOAA. Please never attempt this on your own. But please do call the hotline (808-651-7668) when/if you find a monk seal in the Poipu Keiki Pool.)

This past summer, RK90 was repeatedly sighted with R6FQ, a seven year-old-male.

Now, the question is where will RK90 pup this time. She likes to haul out on the south shore and west side, so keep an eye out for her and call the hotline if you see any monk seals with a pup. However, there’s a good chance RK90 will make the 17-mile journey across the Kaulakahi channel to pup on Niihau again.

Here’s a series of recent photos of RK90. This series also happens to provide a good representation of photographs to take when you come across a monk seal on the beach–providing images of all sides (front, rear, belly, back) for NOAA to identify the seal and make a visual health assessment.

Happy holidays!

IMG_4838IMG_4839IMG_4840IMG_4841IMG_4842IMG_4844IMG_4846

 

Read Full Post »

Hawaiian monk seals can pup anytime throughout the year, but the majority tend to do so in the spring and summer. Typically, at the start of the year, our team starts tracking pregnant females, watching out for the regulars like RH58, RK30, and RK13. But the list will also include others and can tally more than 10. But we’ve yet to hit double digits in annual pup births on Kauai—at least, in recent history. There are likely moms who miscarry and others (like RK52) who produce stillborn pups. But a handful of pregnant females seem to disappear right before they give birth. Then, they return six or eight weeks later looking thin.

In science, “philopatry” is the tendency for an animal to stay or habitually return to the same place. “Natal philopatry” is the tendency for an animal to return to their birthplace to breed. In the case of Hawaiian monk seals, we often—but not always—see females return to their birthplace to pup. 

The Hawaiian Monk Seal Research Program estimate approximately 300 of the endangered pinnipeds make their home in the Main Hawaiian Islands. On Kauai, we roughly estimate 50, although some seals do make inter-island trips. The island associated with the greatest number of monk seals is Niihau—at 150. Roughly 15 ocean miles separate Kauai from our neighbor island of Niihau. This is not a considerable journey for monk seals. In 2010, one monk seal outfitted with a tracking device made a 2,000-mile pelagic journey. So, for monk seals, 15 miles might be considered a walk in the park. And this can explain why 10 pregnant seals sighted on Kauai beaches results in five pups born on Kauai. A few return to their birth place on Niihau when it’s time for them to pup.

Here’s some data to illustrate:

RK14: A Kauai regular who was observed in 2017 with a pup on Niihau. RK14’s window of absence from Kauai was 8/16/17 to 11/23/17, but she isn’t sighted routinely–she likes to haul out on remote North Shore and Na Pali beaches, so her absence was most likely shorter.

R1KY: A Kauai regular who was observed in 2017 with a pup on Niihau. R1KY’s window of absence from Kauai was 4/8/17 to 6/16/17. In 2018 she wasn’t sighted on Kauai from 5/30/18 to 7/17/18, but no surveys happened on Niihau during this window so we’re unsure if she pupped. Here are before and after photos of her.

R1KY on 04182018R1KY on 07172018

R313: In 2017, she disappeared from 7/26/17 until 9/23/17, looking very large in July, but still pretty big when she came back, so we’re not sure what happened during that time. In 2018, she looked large and had teats protruding on 6/26/18 and was next sighted back on Kauai on 9/1/18 looking thin. 

In 2017, RK28 was on Kauai with teats protruding on 6/5/17, then gone until 8/24/17 when she was reported as “thin.” In 2018 she pupped on Kauai’s North Shore.

In 2018, RK90 likely pupped on Niihau between 12/28/17 and 2/17/18.

Read Full Post »

https://www.facebook.com/plugins/video.php?href=https%3A%2F%2Fwww.facebook.com%2Fthemarinemammalcenter%2Fvideos%2F928013864049272%2F&show_text=0&width=560

Here’s the first interaction of RK58 and another pup named Sole at Ke Kai Ola. Sole was born on Molokai and is the older and larger of the two.

Like RK58, Sole was rescued and delivered to Ke Kai Ola–known colloquially as the Monk Seal Hospital–due to another mom-pup switch while nursing. Since 2014, Ke Kai Ola has cared for Hawaiian monk seals–mostly pups and weaners–at their facility at Kailua-Kona on Hawaii Island. Ke Kai Ola was built through a cooperative effort between the Marine Mammal Center and the Hawaii Wildlife Fund.

Also, speaking of RH58, on August 16, she was reported to be back on Oahu where she spends her non-motherhood days.

Meanwhile, back on Kauai, the first female to give birth this year, RK13, is putting on weight after weaning her pup, RK42. As you know, females do not feed during the five to seven weeks they nurse their pups, growing skinnier by the day. Typically, females will go into estrus sometime after weaning. They’ll also go through an annual molt in the weeks and months after weaning; however, RK13 hasn’t molted yet. She has been sighted with male R6FQ on numerous occasions since August 11th.

R6FQ is a seven-year-old male who is easily identified by deep line scars at the base of his left rear flipper, possibly sustained during a propeller strike when he was a juvenile. Prior to hanging around RK13, he was repeatedly sighted during June and half of July with RK90.

RK90 is an adult female who was likely born on Niihau. She popped up on a Kauai Beach as a juvenile in 2013 with a fish hook in her mouth. It was removed and at the same time she was flipper-tagged. Last May, she was also found with a large fish hook sticking out of her mouth. This was her second known hooking. Both hooks were successfully removed on the beach. Late last year, RK90 was sighted on Kauai looking large and very pregnant. Then, she disappeared for six weeks, returning in mid-February looking thin. It’s suspected that she returned to her natal island to give birth, something many, but not all, females do.

Read Full Post »

Sightings:

The Kauai team logged 259 seal sightings this month. This included 32 individually identified seals.

Feb: 259
Jan: 336
Dec: 270
Nov: 239
Oct: 225
Sep: 354

New Issues:

  • RK90 returned after 6 week absence. Was large and pregnant on 12/28/17 and then sighted on 2/17/18 thin. Likely pupped on Niihau. This would be her first pupping.

Updates on previously reported issues:

  • NG00 is likely still hooked and was not sighted this month. NG00 was observed with a circle hook in lower right lip. Sighted on Niihau in January. Photos match pictures sent in by fisherman along Kaumakani in September of a hooked seal. Seal in good condition, hook not life threatening, will attempt to de-hook next time hauled out on sand.
  • Poipu Keiki Pool: 6 displacements took place this month. Listed below are which seals and how many total times they have been displaced from the keiki pool. Please remember displacements require skilled training and, as always, prior approval from NOAA. Please never attempt this on your own. But please do call the hotline (808-651-7668) when/if you find a monk seal in the Poipu Keiki Pool.
    • RN02 – 3rd displacement
    • RG58 – 1st and 2nd displacement both this month
    • R339 – 4th displacement
    • RV18 – 1st displacement
    • RK90 – 3rd displacement
  • Morbillivirus vaccinations: All vaccines on Kauai have expired. No further vaccinations will occur for the time being.
  • Bleach markings: 2 seals bleach marked this month.
  • Molting activity: 1 seal molted this month.

Read Full Post »

Older Posts »