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Archive for the ‘R8HY’ Category

Field Report: July and August

Logged seal sightings:
August: 230
July: 414
June: 356
May: 263

R8HY Hooked on Oahu and Dehooked on Kauai

R8HY, Gary Langley.png

Photo credit: G. Langley.

On July 15th, R8HY was sighted swimming around Oahu with a large ulua circle hook, Searches were started for the adult male seal, and he was found resting at Moloa’a bay, Kauai on July 18th! Fourteen feet of heavy monofilament line was trailing from the seal and loosely wrapped around his rear flippers. After receiving authorization, most of the trailing line was cut, leaving 1 foot still attached to the hook. Unfortunately, the hook’s tip was not visible, and it was determined veterinary assistance was needed to remove it. On the morning of July 19th, R8HY hauled up at North Larsens beach where a team was able to successfully remove the hook.

 

RK28 Sighted with Mobbing Wounds

RK28, Cynthia Sterling.png

Photo credit: C. Sterling.

On August 7th, the public reported a wounded seal on the rocks along the coast at Princeville. Volunteer found an adult seal resting on the rocks with a fairly fresh large superficial wound of the skin and blubber layer. The seal had bite and scratch wounds along her back consistent with mating wounds. No intervention at the time was indicated because the wounds were healing well. On August 12th, RK28 was re-sighted at North Larsen’s beach. The wound was healing well, with the skin closing over pink granulation tissue. Three days later, she was seen again at Anini, and the wounds were shrinking and closing well, showing how quickly and remarkably well seals can heal on their own.

Another Hooked Seal

gary-langley2

Photo credit: G. Langley.

On August 12th, a volunteer walking the coastline on Kauai’s North Shore spotted a swimming seal with a hook sticking out of its cheek. Then, on August 23rd, it’s believed the same seal hauled out on the South Shore, and a team was able to remove the hook and flipper tag her (R7GM) at the same time. 

 

 


Pup Update

rh80gary-langley

Photo credit: G. Langley.

All three pups are weaned, flipper tagged, bleach marked and doing well. To recap: 

  • RK22’s pup was flipper tagged H91/H92 and bleach marked V92.
  • R028’s pup was flipper tagged H80/H81 and bleach marked V80.
  • RK30’s pup was flipper tagged RH38.

 

RH80,Gary Langley 2.png

RH80 with bleach mark V80 for easy identification in the field. Photo credit: G. Langley.

Vaccination Update
Since June, the Kauai team has been vaccinating Kauai seals against Morbillivirus, a disease that causes measles in humans and distemper in dogs. To protect our rare Hawaiian monk seals, the first ever vaccination of wild seals has been initiated, as epidemics of this deadly virus have devastated other seal species populations around the world. As of now, 19 of 20 seals were booster vaccinated.

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Field Report: June

Updates for our Kauai seals and pups.

RK30 weaned her pup, PK1. This pup most likely nursed 49 to 50 days, making this a very big pup. On Monday, June 27th, she was tagged and vaccinated and is now, officially, RH38, (tags H38/ H39).

Milolii pup (ScubaTomPhotography)2

RH38

RK22 weaned her pup, PK2, on Sunday, July 2, after 41 days of nursing.

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PK2 (Photo credit: G. Langley)

RO28 arrived from Oahu and pupped, PK3 on June 15. Both are doing well.

RO28 and PK3-3-2

PK3’s first recorded nursing bout with RO28.

Vaccinating seals on Kauai.

The Kauai coordinators are in the process of vaccinating Kauai seals against Morbillivirus, a disease that causes measles in humans and distemper in dogs. To protect our rare Hawaiian monk seals, the first ever vaccination of wild seals has been initiated, as epidemics of this deadly virus have devastated other seal species populations around the world. So far, 13 Kauai seals have received their initial vaccination and some their second booster shot. We are now earnestly looking to booster several male seals, and volunteers can assist us by looking out for RF28 ( red tags, and transmitter on his back, on the north and east sides of Kauai), and N1AA (black tags on the south and west sides of the island). Also, RN30, R8HY subadult males found primarily on the east side often Ahukini cove.
Here is a video of how seals are vaccinated. We will put out a list as time goes on, to identify which seals we are looking for to booster in the 3-5 week window and would truly appreciate assistance in looking for them.

RF28 and RF30 released and doing well.

On May 27, RF28, a juvenile male seal, was found with an ingested hook that was successfully removed on Oahu by a veterinary team. He was soon released back on Kauai with a transmitter on June 2.

RF28(MaryFrances)

RF28 (Photo credit: M. Miyashiro)

RF28 locations

Dive data RF28

A week later, we were surprised to find another internally hooked seal, RF30, a juvenile female! She was located at the Poipu county beach park keiki pool where she was logging and acting strangely. A team was assembled for a water capture using fence panels and crowding boards. This challenging capture was successful due to our many fine volunteers that rallied on a very short notice. Without volunteers to find and assist with capturing these injured seals, none of these successes would be possible! We supremely need and appreciate all our volunteers! RF30 was also transported to Oahu by a US Coast Guard C-130. She was found to have some swelling in the throat where the hook was lodged and at the base of the tongue. It was successfully removed using an endoscope and specially designed tools. Four days later RF30 was flown back to Kauai and released on the east side of the island where she normally resides. Both seals are fitted with satellite tags that are solar powered.

RF30 release (MaryFrances)2

RF30 (Photo credit: M. Miyashiro)

RF30 locations

Dive data RF30

Tag (LloydMiyashiro)

Photo credit: L. Miyashiro

Other marine species:
News from NOAA Fisheries Sea turtle program. If you see a honu or ‘ea on the beach or in the water, please remember:

  • View sea turtles from a distance of 10 feet (3 meters). In Hawai‘i, we view turtles respect- fully. Give turtles space and don’t feed, chase, or touch them.
    Hawaiian honu bask on the beach. This is normal behavior. Don’t try to
    push them back into the water.
  • “It’s OK to help!” Fishermen, check your gear often, use barbless circle hooks and adhere to state gillnet rules. If safe for both you and the turtle, release accidentally caught turtles by fol- lowing these steps:
  1. REEL-IN the turtle carefully
  2. HOLD by its shell or flippers
  3. CUT LINE as close to the hook as possible, and
  4. RELEASE with no (or as little) gear or line attached.
  • “No white light at night.” Use wildlife friendly lighting near the coast (yellow/amber and shielded lights). Don’t use flash photography, and keep lights and beach fires to a minimum from May to December, when turtles are nesting hatchlings are emerging.
  • Avoid beach driving. Off-road vehicles crush nests, create tire ruts that trap hatchlings, and degrade habitats. Driving on the beach is also illegal in most areas.
    Prevent debris and rubbish from entering the ocean. Participate in beach and reef cleanup activities.
  • Report all hawksbill sea turtle sightings, any nesting activity (turtle tracks or nest digging), and injured or dead turtles to NOAA’s Sea Turtle Stranding Hotline on Kaua‘i: (808) 274-3344.
  • Report illegal or suspicious activity that may result in turtle injury or death by calling the Division of Conservation and Resources Enforcement (DOCARE) at
    (808) 587-0077 or 643-DLNR.

 

 

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(P)update #15

Mom/RK22 and pup/PK2 were in and out of the water today, racking up a total of four hours swimming. In between, they made good use of a good chunk of the beach.

Throughout the day, five feedings were observed. Speaking of feeding, here’s an interesting fact: The bearded seal (Erignathus barbatus) (Mohr, 1952) and the monk seal are apparently the only phocids having four functional teats.

Three male visitors–V18, R336 and 8HY–made visits with just R336 attempting an approach.

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Photo credit: G. Langley

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Photo credit: G. Langley

 

 

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(P)update #12

As the pup gets older, both swim and nap times grow longer. PK2 and RK22 continue to stick close together during this time. When one heads to the water, the other will follow. If one gets too far away, the other will call out, and the two will reunite. When one sleeps, the other sleeps.

Today, five feedings were observed between swims and naps. Two male visitors–R336 and R8HY–stopped by but no interactions occurred.

Photo credit: G. Langley

Photo credit: G. Langley

Photo credit: G. Langley

Photo credit: G. Langley

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(P)update #10

Seems mom/RK22 and pup/PK2 had a busy day today. Our volunteers logged two swims lasting two hours each and five feedings. Plus, three males–R8HY, RK05, and RV18–all paid visits, causing some displaying that is all part of the social dynamics of these animals. Mostly, the males are posturing to let mom know they’ll be ready when she goes into estrus again some time after pup is weaned. Sometimes, a male simply hauls out and sleeps on the beach somewhat near mom and pup. He may inch or roll toward her. All moms respond differently, but if/when a male gets too close, mom will raise up and give him a piece of her mind, and the male will back off if not leave the beach altogether. If a second male appears, the two males may tussle, typically with the more dominant one staying and the other swimming off. There is rarely physical harm done to any of the seals involved, but important messages of hierarchy are being communicated.

Of note is R8HY. Until quite recently, he’d been sighted regularly on O`ahu, perhaps a 100-mile journey, giving you an idea of the distances these seals can travel.

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Photo credit: V. Bloy

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Photo credit: V. Bloy

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Photo credit: G. Langley

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Photo credit: G. Langley

 

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We have three pups in three stages.

Hawaiian monk seal flippers up

Photo credit: V. Bloy

G13 weaned after 43 days, and is exploring the reef, spending much of her time in the water like this–sticking her head under rocks and crevices. She’s also sporting spiffy flipper tags–G12/G13. This is the time of her life where she’s figuring out what’s good to eat. She’s likely snacking on things such as sea cucumbers that won’t continue to be part of her regular diet. G13 has a good store of fat. Hunger is not yet driving her to forage far and wide. She continues to hang out near her natal beach but is starting to range a bit more. As she gets more confidence, stronger, and hungrier, she will forage outside the reef farther off-shore, and we’ll find her hauled out on beaches elsewhere on Kaua`i.

Hawaiian monk seal pup V22RK22 weaned PK2 after 41 days of nursing. Likewise, he is healthy and plump and sticks close to the beach where he was born. The two weaners have even been sighted rolling in the shallow water together. Shortly after PK2 was weaned, he was bleach tagged on his side as “V22.” Soon, he’ll get flipper tags.

Both weaners are often visited on the beach by various males, including R8HY, RK05, T320, among others.

Hawaiian monk seal mom and pupRO28 continues to nurse PK3, who can get quite vocal when he’s hungry, and has even been known to vocalize while he’s nursing–as well as, fall asleep while receiving his regular nutritious nourishment. His girth is nearly the same as his mother’s, as she has not feeding during these past four weeks. This is normal monk seal biology. It’s her own hunger that will finally force 028 to wean her pup. When she does, PK3 will be on his own, swimming the seas and mastering seal life.

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2012 Year in Review: 2,556 individual seal sightings were reported in 2012 (many of the same animals on different days of course), or an average of 7 seals per day!  This was only possible due to the incredible efforts of the volunteer network.  The Kauai Monk Seal Conservation Hui identified 45 different seals on the beaches of Kauai during 2012, including 4 pups that were born on the beaches of Kauai in 2012.


Pupping Predictions for 2013!  Here are the predictions for 2013 provided by the Pacific Islands Fisheries Science Center staff.  There were several regular ‘moms’ that skipped 2012 (R015, R305, RY30, RS00, R006) so they can pup anytime and likely will pup earlier in the year rather than later. We could also be seeing some first time moms this year.

Seal ID Island Predicted Date
RQ21 Molokai 3/29
RV06 Molokai 3/31
RI15 Molokai 4/26
RK13 Kauai 5/9
RK22 Kauai 5/13
RH58 Kauai 6/4
RK30 Kauai 6/10
RO20 Oahu 6/28
RH44 Molokai 7/11
R308 Molokai 7/23
RO17 Molokai 8/5
RV16 Kahoolawe 7/7
R912 Oahu 8/9
R5AY Oahu 9/10

Pacific Island Fisheries Science Center (PIFSC) Research on Kauai:

instrumented-sealThe Pacific Island Fisheries Science Center (PIFSC) joined the Kauai crew in January for field work that included flipper tagging TempV19 (juvenile male) who is now tagged 8HY on the left rear flipper and 8HZ on right flipper.  His official ID is now R8HY.  Also, RW02 (adult male) was instrumented with a National Geographic Critter Cam which recorded 5 days of foraging and diving behavior (see photo below).  Click on this link to learn more about this program.

http://www.pifsc.noaa.gov/hawaiian_monk_seal/news_and_highlights.php#article_20130901_001

Stranding Responses to Hooked Seals:

As some of you may have heard, two seals were hooked with Ulua circle hooks in Hawaiian waters during February, one was a juvenile male RT12 here on Kauai.

RT12 was successfully de-hooked twice and released back in the wild.  Here is how it played out.  Thanks to an early report from one of our lead volunteers, we found RT12 hauled out with a circle hook in his mouth and 8 feet of fishing line trailing from it.  A team was immediately dispatched and RT12 was captured and hook removal attempted, however the hook went through the bottom side of the tongue with the barb imbedded in it.  This made either sedation or surgery necessary, therefore we loaded RT12 into a transport cage, brought him to Lihue where he spent the night at the baseyard until a veterinary team arrived from Oahu the next morning.  After sedating RT12, we found that the hook had now gone all the way through the tongue and into the left cheek.  The hook was cut in half, and easily backed out of the tongue and cheek.  The damaged tissue was swollen and slightly infected, but in good condition. It appeared that the hook was in his tongue for 24 to 36 hours, we were very fortunate to catch it so soon.

A satellite tracking tag was attached to track his dive behavior and movement.  RT12 was also given an antibiotic injection and then released.  Another lead volunteer sighted him sleeping comfortably on the rocks just south of the release location later that day.

hooked-t12To our great surprise, one week later, RT12 was discovered with another hook in his mouth!   A volunteer reported seeing 4-5’ of fine monofilament line coming from the mouth of RT12 again! Can you find the fishing line??

With the excellent assistance of many volunteers, the coordinators were authorized to mobilize an assessment team and equipment to capture, restrain, dehook and potentially transport the seal. Once we caught RT12, we found and removed one ”J” hook from his left front flipper. Unfortunately when we examined his mouth we discovered the additional line coming from his mouth with the hook out of sight, requiring sedation and surgical intervention to remove it.

Once more, RT12 was loaded into the transport cage to be watched overnight at the DLNR baseyard by the coordinators.  On the morning of Feb. 13, Dr. Michelle Barbieri arrived from Oahu and helped us transport RT12 to a local Veterinary Clinic on Kauai.  Under general anesthesia, radiographs revealed another one inch “J” hook in the esophagus.  With an endoscope, special instruments, and the expertise of two veterinarians, the hook was removed and RT12 was given antibiotics and his right rear flipper tagged T43 (he lost his T13 last year).  An hour later, RT12 was released again.

We are all very happy that this seal was discovered early and his ingested hook was removed, may he never again swallow another hook!  It is with much appreciation, that we thank all who work so hard to monitor and care for each of these endangered Hawaiian monk seals when they rest on our beaches.  It takes all of us working together for a bright future that we can share together.

hooked-seal-xrayThe other hooking had a less fortunate ending.  A juvenile male, RK68, from the Big Island died from ingesting a circle hook.  The links below provide the details:

http://www.hawaiinewsnow.com/story/20971940/monk-seal-dies-after-swallowing-fish-hook

http://www.kitv.com/news/hawaii/Officials-Monk-seal-death-was-painful-preventable/-/8905354/18425672/-/96yfrpz/-/index.html

http://www.khon2.com/content/news/developingstories/story/Hawaiian-monk-seal-dies-after-ingesting-fishing/phINPPcsMESYPmbicdj3Bw.cspx

Annual Seal Molting:  Winter is the season that most male Hawaiian monk seal’s molt.  At this time their testosterone levels are low and mature males undergo their annual molt. Both the hair and the epidermis are sloughed and replaced in this “catastrophic molt” that is similar to elephant seals, but unlike all other seals.  In the Hawaiian monk seal the actual observed molting period is about 10 days when the seal is seen ashore before and after the hair-skin sloughing period. The actual physiological process is probably much longer, and is a metabolically demanding time requiring the seal to rest long periods on shore and fast, that is why it is important to allow monk seals to rest peacefully while molting.  Also, documenting the timing and duration of molt is a good indicator for a seal’s health.

In the last two months, mature male seals R018 and RK31 molted primarily on the south shore, and for several days together at Poipu Beach Park, requiring extensive volunteer efforts to monitor and protect these seals.  Much outreach and education happened as well, while many visitors standing downwind of the seal noticed the strong “stinky” smell, due to the molt!  We so appreciate all the many essential volunteers that assisted to adjust the seal protection zones (SPZ’s) as the seals moved from the vegetation early in the morning down to the wave wash to thermoregulate in the day’s heat and back up to the vegetation line to spend the night!

Photo credit: Lynn Nowatzki

Photo credit: Lynn Nowatzki

RK31 90% molted (Molt  is estimated by % of molted skin remaining. Molt starts from the face and belly where it is rubbed off first).  Notice also circular pink wound from a fresh cookie cutter shark bite over the left hip.

Many people notice that the Hawaiian monk seals are different colors.  Freshly molted seals are a silvery gray with a lighter gray ventrally.  Some seals may be stained red by red dirt, more often seen in young juveniles that haul out to rest and hide on dirt and rock beaches. With time pelage ages to darker brown and hues of green appear around the face and flippers due to algae growth!  See in the photo below three males of various ages that are different colors due to when they molted.  RV18 is an adult that molted March 2012, RW02 is a subadult that molted Sept. 2012, and R8HY is a juvenile that just molted Jan.2013.

Photo credit: Gary Langley

Photo credit: Gary Langley

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