BOTTLENOSE DOLPHINS IN ABACO WATERS (2): MOTHER & CALF


Dolphin Mother & Calf, Sandy Point, Abaco, Bahamas 12

Sometimes things happen that completely take my breath away. Here is one of those moments, from our recent trip with Charlotte and Diane in the BMMRO research boat. As we returned from whale-watching to base in Sandy Point and moved from the deep dark ocean to the bright blue shallows, we encountered a group of bottlenose dolphins. You can see my recent post featuring some of the adults HERE. That was exciting enough, as they played around the boat. Then another participant appeared… 

 Notice the dark area behind the adult dolphin… Dolphin Mother & Calf, Sandy Point, Abaco, Bahamas

…which soon separated into a small dark splashing creature with its own fin cutting the waves…Dolphin Mother & Calf, Sandy Point, Abaco, Bahamas

…and next seen keeping pace with its parentDolphin Mother & Calf, Sandy Point, Abaco, Bahamas

The sharp line between the light and the dark sea is where the sandy shallows abruptly give way to the deep waters of the Grand Bahama Canyon, a massive trench up to 2.5 miles deep with almost vertical cliff walls to the depths in some places

Dolphin Mother & Calf, Sandy Point, Abaco, Bahamas

Dolphin Mother & Calf, Sandy Point, Abaco, Bahamas

There were less active and splashy moments as the pair swam around togetherDolphin Mother & Calf, Sandy Point, Abaco, BahamasDolphin Mother & Calf, Sandy Point, Abaco, Bahamas

Then it was back to doing what they like best…Dolphin Mother & Calf, Sandy Point, Abaco, BahamasDolphin Mother & Calf, Sandy Point, Abaco, Bahamas

Then some more restful moments…Dolphin Mother & Calf, Sandy Point, Abaco, Bahamas Dolphin Mother & Calf, Sandy Point, Abaco, Bahamas

And finally the pair moved away. On the far horizon, the Massive Mickey Mouse Cruise ship moored at ‘Disney’s Castaway Cay’ (formerly the sober-sounding Gorda Cay), where you can be a Pirate of the Caribbean. Or anyway a very happy Tourist. The choice is yours. Would you like fries with that?Dolphin Mother & Calf, Sandy Point, Abaco, Bahamas

And looking out to sea from the cheerful place that is Castaway Cay, I wonder if a small child was wondering “Ok, love Mickey and his Friends – but I’d also really love to see a wild dolphin swimming free… 

Disney Magic docked next to the Castaway Cay Family Beach copy

All photos RH (except Castaway, Wiki). Huge thanks to Charlotte, Diane and Bahamas Marine Mammal Research Organisation BMMRO for a truly wonderful day photo 2

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BOTTLENOSE DOLPHINS IN ABACO WATERS (PART 1)


Bottlenose Dolphins, Rocky Point, Abaco (Keith Salvesen : BMMRO) 7

BOTTLENOSE DOLPHINS IN ABACO WATERS (PART 1)

DCB GBG Cover Logo dolphin

This seems to be a excellent early Spring for dolphin and whale sightings in Abaco waters. I’ve noticed that people have been posting dolphin sightings on FB recently. In our brief window of opportunity each March, I usually reckon to see 2 or 3 dolphins at most – maybe crossing over to Hope Town on the ferry, or more probably on a fishing trip. This year we saw 2 groups of about 6 off Cherokee while fishing, including calves. On another day, 4 adults made a leisurely progress the whole length of Rolling Harbour while we watched from the balcony of the Delphi Club. I don’t think they have ever been so close to the shore there before. The best was to come.Bottlenose Dolphins, Rocky Point, Abaco (Keith Salvesen : BMMRO) 3

Near the end of our trip Charlotte Dunn and Diane Claridge invited us to go out with them on the BMMRO research boat. This is equipped with a hydrophonic system that can detect the bleeps, whistles and clicks of cetaceans, and record them for comparison with previous data. This enables particular animals to be identified from their vocalisations. The other method is to note particular features of an animal – damage to a fin, markings on the flank and so on. During the day C & D happily conversed in code: “Is that 132 over there?” “No, it’s got a nick in the fluke, it must be 127…”BMMRO Research Boat, Sandy Point, Abaco

As we returned in the RHIB from an amazing day spent at close quarters with beaked whales [more on these soon], we moved from deep dark blue ocean to sandy turquoise shallows. There, just off Rocky Point (near BMMRO HQ at Sandy Point) were half a dozen bottlenose dolphins, including a mother and calf. This post contains a small batch of photos of adults – there’ll be another post shortly featuring the calf… Bottlenose Dolphins, Rocky Point, Abaco (Keith Salvesen : BMMRO) 4Bottlenose Dolphins, Rocky Point, Abaco (Keith Salvesen : BMMRO) 1Bottlenose Dolphins, Rocky Point, Abaco (Keith Salvesen : BMMRO) 5

Here’s a taster for the next post – the calf, just visible close alongside its mother, was being given leaping practice. Watch this blog…

Bottlenose Dolphins, Rocky Point, Abaco (Keith Salvesen : BMMRO) 6

All photos RH. Huge thanks to Charlotte, Diane and Bahamas Marine Mammal Research Organisation BMMRO for a truly wonderful day (and for my cool sweatshirt!) photo 2

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WHALES, DOLPHINS & MANATEES, ABACO: BMMRO NEWS


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WHALES, DOLPHINS & MANATEES, ABACO: BMMRO NEWS

BMMRO COLLABORATES WITH NEW PARTNER, ATLANTIS BLUE PROJECT

The ATLANTIS BLUE PROJECT is managed by the Atlantis Blue Project Foundation, a private non-profit organization dedicated to the preservation and enhancement of global marine ecosystems through scientific research, education, and community outreach. BMMRO is excited to now be a part of this project and in turn has received two grants from the Atlantis Blue Project for 2014 

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Stranding Response to Support Conservation of Marine Mammals in the Bahamas 

Increasing capacity and available funds to respond rapidly to strandings in The Bahamas will increase our ability to determine cause of death and/or successful rehabilitation of marine mammals. At the first stranding workshop held in the Bahamas in 2008, the Honourable Lawrence Cartwright, Minister of Agriculture and Marine Resources officially opened the workshop stating “I believe the establishment of a Marine Mammal Stranding Network in The Bahamas will serve to promote the conservation of marine mammal species and their habitat by improving the rescue and humane care of stranded marine mammals, advancing stranding science, and increasing public awareness through education.” This funding will provide the resources to train veterinarians on how to work with stranded marine mammals as well as provide the resources to respond to strandings.

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Field Research & Outreach to Support Conservation of Bahamas Marine Mammals

Cetaceans are long-lived, highly specialised animals with delayed reproduction and low fecundity, which makes them incapable of rapid adaptation and thus particularly vulnerable to anthropogenic impacts. BMMRO has compiled an unprecedented long-term dataset for the region, which has become increasingly valuable to inform about the baseline ecology of some odontocete species. This research will ensure that this important work continues to fill key gaps in our knowledge about the ecology of marine mammals. Additionally, we will increase awareness and build capacity amongst Bahamians, both of which will contribute to local conservation needs.

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JANUARY SIGHTINGS

For Abaco, the excitement is the sperm whale seen just off the Rocky Point area. More generally for the northern Bahamas, in addition to the manatee Georgie (former temporary resident of Abaco) and others, there was a manatee reported on Eleuthera. It looks as though these gently creatures continue to find the area to their liking.

BMMRO Sightings Jan 2014

I must be going now – thanks for visiting Rolling Harbour…blue6

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(Thanks as ever to Charlotte & co at BMMRO for permission to use and adapt their material!)

‘JUMPING FOR JOY': CHEERFUL DOLPHINS IN ABACO WATERS


Dolphin, one of a pod of 50

‘JUMPING FOR JOY': CHEERFUL DOLPHINS IN ABACO WATERS 

To be totally accurate, one or two of these photographs may have be take from the BMMRO research vessel at some point during an expedition to Andros. But since the boat set off from and returned to Abaco, with an Abaconian team on board, I have stretched a point  with the title… 

It would be hard to view a dolphin leap as high as this (top photo) as anything other than an expression of pure enjoyment. Difficult to tell the exact height, but it’s fairly spectacular. Dolphins always seem to be looking, or acting, happy. Here are a few more, a mix of bottlenose and spotted dolphins,  to spread some cheer… 

Dolphin Leap Abaco ©BMMROSpotted Dolphin, Abaco ©BMMROSpotted Dolphin Abaco ©BMMROHappy Dolphin Abaco ©BMMRO

This dolphin was one of a large pod of 28 seen on a recent BMMRO research tripOne of a large pod of 28 dolphins

Time to get my… erm… paintbox outLeaping DolphinPhoto credits: Bahamas  Marine Mammal Research Organisation BMMRO

In an earlier post I name-checked BMMRO intern Oscar Ward’s blog SeventyPercentBlue.  You can read Oscar’s account of his continuing adventures HERE

HOPE TOWN, ABACO: DOLPHINS & A LIGHTHOUSE IN THE SUN


Hope Town, Elbow Cay, Abaco 13

HOPE TOWN, ABACO: DOLPHINS & A LIGHTHOUSE IN THE SUN

A trip to Hope Town and Elbow Cay is a always a treat. Especially if it includes lunch with friends. Most of my previous visits have been in cloud or rain, so the glory of the historic and indeed iconic candy-striped lighthouse has been rather marred. I left Delphi in hot sunshine, but it began to cloud over ominously during the half-hour drive north to Marsh Harbour and Albury’s Ferry Terminal. I was still optimistic when I arrived, though…Hope Town, Elbow Cay, Abaco 2…until I looked the other way. The 20-minute crossing of the Sea of Abaco to Elbow Cay was characterised by a sudden pelting rain storm and a churning sea. A passenger lay down greenly, and I began to count the minutes.Hope Town, Elbow Cay, Abaco 1However, as we approached Hope Town we emerged from the gloom into bright sun, and a fine view of the lighthouse. This edifice has one of the last remaining kerosene-lit lights in the world, attended to every 2 hours throughout the night by volunteers. The mechanism sits on a bed of mercury, and the light shines through the original fresnel lenses. Much of the original british-made machinery is still in place. For a tour round the interior, with excellent photos taken by Mrs RH, and views from the top platform, click HOPE TOWN LIGHTHOUSE Hope Town, Elbow Cay, Abaco 3 Hope Town, Elbow Cay, Abaco 4Lunch at the pleasant Harbour’s Edge Restaurant was enhanced by two – or was it three? – bottlenose dolphins that swam around the harbour. I was torn between eating, chatting  and photographing them. I didn’t catch the wonderful lazy arcs they made as the broke the surface and slowly arched back into the water. It was near impossible to predict where they would surface next. Here are a couple of less dramatic shots… Hope Town, Elbow Cay, Abaco 11Hope Town, Elbow Cay, Abaco 5After lunch there was time for a quick wander round the attractive little town, with its pastel-coloured houses. Hope Town 1a

There was a YELLOW ELDER tree in bloom, the national flower of the Bahamas. [Later: as it turns out, I was caught in the act… of photography]Hope Town, Elbow Cay, Abaco 7Hope Town, Elbow Cay, Abaco 6996860_10200325236513792_581389694_n

Hummingbird Cottage Art Centre and Gallery

I was taken to see the new HUMMINGBIRD COTTAGE ART CENTRE & GALLERY  a fine work of building restoration in the centre of town that provides a surprisingly large exhibition space and an idyllic place for art classes and related activities.

DSC_0076-150x150Hope Town, Elbow Cay, Abaco 10Hope Town, Elbow Cay, Abaco 8Hope Town, Elbow Cay, Abaco 9Later, I took the ferry back to Marsh Harbour, taking a final good look at the lighthouse, still thankfully in full sunlight against a vivid blue sky.Hope Town, Elbow Cay, Abaco 12Hope Town, Elbow Cay, Abaco 15  Hope Town, Elbow Cay, Abaco 14Hope Town, Elbow Cay, Abaco 16

LINKS

HOPE TOWN LIGHTHOUSE: THE WORKS

YELLOW ELDER: BAHAMAS NATIONAL FLOWER

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ALBURY’S FERRY SERVICE

and for a comprehensive overview of Hope Town and Elbow Cay

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Hummingbird Cottage ©Brigitte Bowyer

ART FOR THE [NATIONAL] PARKS: 3 DAY EVENT IN AID OF ABACO’S WILDLIFE


Atala Hairstreak LogoSUPPORT ABACO WILDLIFE CONSERVATION AND THE WORK OF THE BNT

LOCAL ARTISTS & ARTISANS; LECTURES; ENVIRONMENTAL GAMES; FRESH MARKET

(Help to make sure that the creatures pictured below stay off the IUCN ‘threatened species’ list) 

Art for the Parks: Abaco National Parks

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