BOTTLENOSE DOPHINS (VIDEO) & BMMRO ABACO CETACEAN SIGHTINGS


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BOTTLENOSE DOPHINS (VIDEO) & BMMRO ABACO CETACEAN SIGHTINGS

The legendary CONCH SALAD TV is a great resource for Bahamas wildlife and way-of-life enlightenment. Their instructive videos are very well put together, and cover Nature, Marine, Art, Science, Music, Culture, Cooking, and broader Bahamas issues. The video below is 9 minutes of Bottlenose Dolphin action, and is recommended for relaxation, gentle instruction, and Kalik-swigging accompaniment…

BMMRO Whale Camp Dolphin Image FV

It time to catch up with last month’s Cetacean sightings around Abaco. The Manatee reports are of Georgie in the Cherokee area – alas no longer resident on Abaco but safely at Atlantis where she is being cared for. To know more about the Blainville’s beaked whale on Abaco, click HEREBMMRO sightings 2013

stop pres gif BMMRO’s executive director DIANE CLARIDGE has been awarded her PhD by St Andrews University for her research on beaked whales.  Dr Claridge’s new status is celebrated by humans and cetaceans alike (see image ©BMMRO below…)Bottlenose Dolphins Abaco ©BMMRO

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GEORGIE THE ABACO MANATEE: FAREWELL CHEROKEE, HELLO ATLANTIS


Georgie the Mantee Abaco clip

GEORGIE THE ABACO MANATEE: FAREWELL CHEROKEE, HELLO ATLANTIS

Many people have shown an interest in the adventures of Georgie the Manatee over the last 18 months or so, and the work of the BMMRO in monitoring her movements and welfare. She has travelled a great many miles in that time, to and around Abaco; settled down eventually in Cherokee; successfully shed her satellite tag; gone awol a couple of times; and happily reappeared at Cherokee each time. Recently there have been increasing concerns about her wellbeing, and a joint venture has overseen her capture & return to the Atlantis Marine Mammal Rescue Center for observations and health evaluation. The full story published in the Bahamas Weekly [click logo below] with photos by Tim Aylen is set out below. I have also included some very good pictures of Georgie and the preparations for her journey, taken by Cindy James Pinder (with thanks for permission to use them). So Abaco – and Cherokee in particular – has sadly lost its only (briefly) resident manatee. I can’t make out when the last resident manatee was recorded on Abaco, but not very recently I think. Fingers crossed for Georgie’s future – I will continue to post updates on how she gets on.

UPDATE 1 FROM BMMRO “On January 26th, Georgie was captured in Casaurina canal and transported to Dolphin Cay-Atlantis. Videos taken by BMMRO on January 15th highlighted areas of concern in regards to Georgie’s current body condition. Those videos were then circulated amongst a group of manatee researches abroad and their opinions and advice were taken into consideration by the Department of Marine Resources (DMR). Georgie had lost a considerable amount of weight since her arrival to Abaco (September 2012) and need medical attention. DMR gave Dolphin Cay permission to capture Georgie and transport her to their marine mammal rehabilitation facility until she was healthy enough to return to the wild. Health assessments were conducted the day of capture (prior to transporting her to Nassau) and on January 27th. BMMRO’s Manatee Lady (and Educational Officer), Kendria Ferguson, visited Georgie on January 29th and is happy to report that Georgie is doing well. She is currently on a meal plan that will assist her with getting the necessary nutrients she needs to get healthy. BMMRO will continue to monitor Georgie’s progress and will provide updates here on our FB page. Thank you for all your support, please help us to continue to monitor manatees in The Bahamas by making a donation on our website www.bahamaswhales.org.”

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ATLANTIS RESCUES ENDANGERED MANATEE & RELOCATES HER TO DOLPHIN CAY

By Atlantis, Paradise Island and One&Only Ocean Club     Jan 31, 2013  6:22:53 PM

W-Georgie-the-manatee-is-placed-into-a-medical-pool-at-Dolphin-CayPhoto: Tim Aylen

PARADISE ISLAND, THE BAHAMAS The Atlantis Animal Rescue Team, under the direction of the Bahamas Department of Marine Resources (BDMR) and with assistance from The Bahamas Marine Mammal Research Organization (BMMRO), successfully rescued Georgie, a West Indian manatee and relocated her to the Atlantis Dolphin Cay Marine Mammal Rescue Center.  Dolphin Cay is home to the only live marine mammal rescue and rehabilitation center in The Bahamas and is a member of the Bahamas Marine Mammal Stranding Network.  Manatees in addition to all marine mammals are protected by the Marine Mammal Protection Act of 2005 and only authorized facilities are able to respond such requests from Government.

Georgie was first sighted in Spanish Wells in June 2010 where she was born to Rita, a known Florida Manatee.  In October of 2011 both Rita and Georgie appeared in the busy Nassau Harbor and at the request of the Bahamas Government, the Dolphin Cay Team rescued them and brought them to a safe environment at the Atlantis Dolphin Cay Marine Mammal Rescue Center where health assessments and evaluations could be conducted.  With the assistance of the BDMR, BMMRO, United States Geological Survey, and Save the Manatee Club, the Atlantis Animal Rescue Team released both Rita and Georgie in April of 2012, equipped with tags to monitor their movements for several months.  In October of 2012, it was observed that Rita and Georgie had split up and Georgie made a dramatic move from the Berry Islands release site to Cherokee in Abaco, The Bahamas.   The Dolphin Cay team made several trips to Abaco, meeting up with BMMRO to try to get a good look at Georgie’s overall body condition.  Concern was raised by BMMRO recently about her general appearance and the decision was made by the Department of Marine Resources for the Dolphin Cay team to conduct a field health assessment and relocate her to the Atlantis Marine Mammal Rescue Center.

W-Atlantis-Animal-Rescue-team-members-arrive-from-Abaco-with-GeorgiePhoto: Tim Aylen

Georgie will undergo a series of general health evaluations.  Once she is healthy, the teams will pull together once again and relocate her back to Great Harbor Cay in the Berry Islands with the hope that she rejoins with the resident group of manatees in that area.  At this time, Georgie is under observation at Dolphin Cay and doing well in her new environment.

Atlantis is the home of world’s largest open-air marine habitat with over 50,000 marine animals in lagoons and displays as well as Dolphin Cay, the state-of-the-art dolphin interaction and education center. Dolphin Cay and Atlantis are accredited members of both the Association of Zoos and Aquariums and The Alliance of Marine Mammal Parks and Aquariums. Both the marine habitat and Dolphin Cay were created with the goal of enlightening visitors about the wonders of these remarkable ocean inhabitants. Dolphin Cay is also the residence of the Katrina Dolphins and Sea Lions some of whom were swept to sea during Hurricane Katrina.

PHOTOS OF GEORGIE DURING HER CAPTURE (©Cindy James Pinder)

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BMMRO: WHALE ETC SIGHTINGS; BLAINVILLE’S BEAKED WHALES; WINTER NEWSLETTER


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Blainville’s Beaked Whale, Abaco, Bahamas

SIGHTINGS REPORT OCT – DEC 2012

The last quarter of 2012 produced relatively few open-ocean CETACEAN sightings, not least because of a reduction in spotting trips during the period, with some members of the team elsewhere in the world completing their research. SIRENIAN activity is thankfully on the increase, with reporting opportunities increased by the manatees’ preference for sticking close inshore, usually in harbour areas. Georgie has gained her first yellow spot as Abaco’s only resident manatee following her long trip over from the Berry Is. (and away from mother Rita) last summer. She has  taken up residence in Cherokee. She performed a worrying vanishing trick during Hurricane Sandy, holing up (presumably) in seagrass off-shore, and (definitely) in an inshore channel for some of the time. She went AWOL again before Christmas, but has returned to Cherokee in good condition after a short vacation. Having shed her tag (several times) it was not possible to track her. The big plus is that she has proved capable of independent living, and has not become reliant on proximity to humans and their offerings of cabbage leaves etc… This photo was taken at Cherokee a few days ago.

Manatee Georgie, Abaco, Bahamas

The other notable new entry is a manatee sighting in the Freeport area of Grand Bahama. A single photo exists – a head shot – but it hasn’t been possible to identify the creature as a known one. (S)he may be a new visitor to the Bahamas. People in the area are asked to report any further sightings in the area to the BMMRO – and if possible to get a picture!
BMMRO CETACEAN SIGHTINGS OCT:DEC 12

BLAINVILLE’S BEAKED WHALES

RANGE MAP                                                         IUCN RATING “DATA DEFICIENT”

        

Mid-frequency broadband sounds of Blainville’s beaked whales

Recent research has been carried out on the sound variations of this relatively little-understood species of whale. “Recordings from acoustic tags show that five Blainville’s beaked whales produced mid-frequency broadband sounds on all of their deep dives, with each sex producing two different sound types. These broadband sounds are atypical of the regular echolocation sounds previously described for this species. One male produced a total of 75 sounds over four dives, between the depths of 109 and 524 meters, and four females produced a total of 71 sounds over 18 dives, between the depths of 305 and 1289 meters. Ninety-six percent of the male sounds and 42 percent of the female sounds were produced before the onset of foraging echolocation sounds, and all were produced before the deepest point of the dives. These sounds may be candidate communication signals, with their production timed to mitigate the risk of both predation and hypoxia (oxygen deprivation).”

The report includes sample sounds from the 3 BBWs shown below, and the one heading the page. I haven’t found a way to embed the sounds, but I am working on it (there’s a time -consuming method involving conversion to MP3, but maybe another day…)

Blainville’s Beaked Whales, Abaco, Bahamas Blainville's Beaked Whale AbacoDA

Thanks to the prolific DEAR KITTY for a cross-reference to this topic on her website, featuring a fine video of  BBW in French Polynesia

Finally, the action-packed, information-filled, image-laden 4 page winter newsletter. Click below to open.

BMMRO WINTER NEWSLETTER 2012 (Jan13)

Georgie Manatee BMMRO SUPPORT LOGO

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ABACO: WHALES, DOLPHINS & MANATEES – BMMRO POST-SANDY REPORT


HURRICANE SANDY – AND AFTER

A report by Kendria Ferguson on the impact of Hurricanes Sandy for the BMMRO

After all the exciting but unexpected events of October, slowly life is returning to normal. As the whimsical but intimidating winds of Hurricane Sandy encompassed the research center, we felt a few limited blockbuster hits. Without power for four days and no contact with the world outside of Sandy Point, we felt like we were in a twilight zone! Hurricane force winds crept up on Abaco during the wee hours on Thursday, October 25th; predicted to be a Category 1, Hurricane Sandy surely made her presence felt! Luckily, we only had a few minor leaks at the research center but the community of Sandy Point and other parts of Abaco had severe flooding and extensive damage. 

Trapped in a house for four days with a hurricane that refused to leave, our concern for Georgie (the Christopher Columbus of our Bahamian manatees) began to grow. Georgie recently separated from her mother (Rita) in June of this year, and shortly thereafter decided to take a detour to Abaco, over 70 miles from the Berry Islands, Northern Bahamas, where she previously resided with a small population of manatees. Having travelled a tremendous distance around Abaco, she finally settled in at a small community called Cherokee Sound, located on the eastern side of Abaco. During Hurricane Irene, October 2011, Georgie and her mother swam from Spanish Wells, Eleuthera to Nassau. Whether this shift in locations was entirely due to the passing of a hurricane is unknown but scientists feared that Georgie could possibly get confused during the storm and take off to an unknown location.

Last sighted on the 24th of October, Georgie wasn’t seen again until November 4th, almost a week after Sandy had passed the community of Cherokee. She returned with a back covered in moss, an outstandingly healthy looking figure and thankfully no visible injuries/wounds as a result of the storm (these photos were taken on November 5th).

After hurricanes, an increase in shark bites has been documented amongst the dolphin population that inhabit the Little Bahama Bank (Fearnbach et al. 2012). Scientists believe that hurricanes may be the driving force for the relocation of dolphins to waters deeper than their preferred habitat which therefore makes them more accessible to predators such as oceanic sharks. Increase in wave height, storm surge, sediment erosion and deposition can make these once tranquil shallow habitats confusing for dolphins and manatees to navigate.

Photograph of a juvenile dolphin with a fresh and severe shark-bite wound on its flank

In the 1980’s and 1990’s, a decline in adult survival rate after the passing of major hurricanes (Category 3 and higher) among manatee populations in Florida were attributed to possible injury from debris, strandings and displacement of animals as a result of habitat loss and strong water currents (Langtimm et al. 2003).

As we hoped, Georgie appeared to have tucked herself into the nearby mangroves and returned within eyesight when she felt it was safe enough to leave the shelter she sought out during hurricane Sandy. Now that the storm has passed, falling debris has been cleared and our shallow water habitats have returned to the calm and often crystal clear waters we remembered them to be. We can all now let out a huge sigh of relief! We all survived Super-Storm-Sandy!

Fearnbach, H. D. (2012). Seasonality of calving and predation risk in bottlenose dolphins on Little Bahama Bank. . Marine Mammal Science, 28(2), 402-411. 
Langtimm, C. A. (2003). Lower survival probabilities for adult Florida manatees in years with intense coastal storms. Ecological Applications, 13:257-268.

Story by Kedria Ferguson, BMMRO’s education officer and manatee expert

The End

GEORGIE THE ABACO MANATEE: IS SHE RELATED TO AN ELEPHANT?


GEORGIE THE ABACO MANATEE: IS SHE RELATED TO AN ELEPHANT?

Georgie, having returned to Cherokee after Hurricane Sandy, is still around there and seems to have made it her home. While she was missing, it was thought she had headed off instinctively for the protection of the mangroves. However a number of sighting reports made since Sandy suggest that she had sensibly swum up the canal at Casuarina, where she was able to keep her head down until the storm had safely cleared northwards, and she was able to return to base. Because she had shed her tag, we’ll never know the full story… 

Georgie safely back at Cherokee after Hurricane Sandy

Recently an interesting article by BEACH CHAIR SCIENTIST considered the relationship between sirenians and pachyderms, and added some handy comparative facts (you can seen more manatee facts on this blog HERE). Thanks, BCS, for use permission (the relevant credits are contained in the article).

Are manatees and elephants related?

by Beach Chair Scientist

It might be very difficult to imagine, but manatees (also known as ‘sea cows’) share a common ancestor with elephants which might come as a surprise if you thought manatees shared a common ancestor with other marine mammals such as dolphins, whales, or sea lions. Here are 10 facts that link manatees and elephants are long-lost relatives.

1. Scientifically, manatees and elephants are classified as subungulates. Other mammals in the Subungulata superorder are hyraxes and aardvarks.
2.Manatees and elephants have an uncommon-shaped heart that is spherical. To compare, most mammals have a single-pointed tip at the base (i.e., “heart”—shaped).
3. The West Indian and West African manatee have three or four fingernail-like structures on the tip of their flippers, just like that of the toenails on the feet of elephants.
4. Manatees and elephants both have a thick, gray skin with very sparse hair.
5. Manatees and elephants have molars which move toward the front of the mouth, eventually break off, and are restored by those at the rear. Elephants have a limited number while manatees are never-ending.
6. Manatees have two incisors that bear a resemblance to elephant tusks.
7. Manatees use their large, flexible muscular lips to break apart vegetation in the water and skillfully steer food to their mouths. This is very similar to the action of the elephant eating with his trunk.
8. Manatees and elephants are herbivores. Manatees tend to feast on sea grass and freshwater plants and consume up to 100-150 pounds a day. Elephants tend to feast on small plants, bushes, fruit, twigs, tree bark, and roots and consume up to 330-375 pounds a day.
9. Male manatees and elephants are known as bulls. Female manatee and elephants are known as cows. Young manatee and elephants are known as calves.
10. Manatees and elephants are both endangered. Their numbers have dropped due in a large part to human activities.

Manatee image (c) cruisenaplesflorida.com, elephant image (c) gallery.hd.org

Here is a fantastic TEACHING RESOURCE from the University of Florida and Se Grant extension I uncovered while pulling this post together.

Credit: SavetheManatee.org

To whom thanks also for this: WHAT DO MANATEES SOUND LIKE? 

 

“MANATEE MANIA IN THE ABACOS” BMMRO FALL 2012 NEWSLETTER


“MANATEE MANIA IN THE ABACOS” – BMMRO FALL 2012 NEWSLETTER

The BMMRO has just published the Fall 2012 newsletter, and it’s no surprise to find that the front page news is the arrival of young manatee Georgie on Abaco. After nosing and indeed grazing her way around Abaco and the Cays, she still appears to be contentedly moored in Cherokee after the best part of a month. Here’s the official map of her wanderings 

Besides the manatee there’s plenty more to read and look at including 

  • Charlotte Dunn’s ‘President’s Update’
  • Articles on whales, and a friendly bottlenose dolphin’s visit to Hope Town
  • Fall ‘cetacean sightings’ map
  • Students at ‘Whale Camp’
  • A quiz to make sure you have taken it all in…

To read the four-page document –  and admire the photos - CLICK BMMRO FALL 2012 NEWSLETTER

GEORGIE THE ABACO MANATEE – CHEROKEE’S SIRENIAN VISITOR STAYS ON…


GEORGIE THE ABACO MANATEE – CHEROKEE’S SIRENIAN VISITOR  STAYS ON…

There must be something special about Cherokee on Abaco. Georgie the Manatee, having travelled over from the Berry Is. early last month, spent 4 weeks or so on the move. She was tracked on the west side of Abaco in the Marls, moving north and rounding Little Abaco, then travelling south visiting various Cays along the way, ending up in Hope Town harbour. After a few days she moved across from Elbow Cay to the Little Harbour area, before settling down in Cherokee. That was nearly 3 weeks ago. She’s still there, by far the longest she has stayed in one place

Maybe the sea grass is especially good there. Or maybe she has found a tasty freshwater spring. Or it could be that she is enjoying the company there, and the welcome from the community – though she of course has been a very popular visitor in all her ports of call. Whatever the reason, she seems to be happy and in good health. Kendria Ferguson (BMMRO) has just sent me 3 photos from her visit to Cherokee today. Georgie has managed to shed her tag – again – but since everyone knows where she is, it doesn’t matter for now…

The image below is also posted on the BMMRO’s FACEBOOK PAGE and maybe gives a clue to why Georgie is so content – calm, friendly interest and attention. The next one is of a young boy inspecting Georgie, also in Cherokee. Equally peaceful.

Let’s compare and contrast those serene pictures with another taken recently – the woman below who was detained in Florida for her ‘manatee riding’ antics…