Stranded Rockhopper penguin rescued

Rockhopper penguinThe Dyer Island Conservation Trust was alerted of a stranded penguin in Pearly Beach (27 Jan).  This is unfortunately not an unusual call, but this time it was a very unusual penguin!  Instead of being an African penguin from nearby Dyer Island, this was a Rockhopper penguin.  It is unusual but not rare to see these penguins wash up on our beaches, and this particular individual was in the process of moulting. 

Moulting occurs every year, and it is during this time that penguins lose their feathers and regrow them for the next year.  It can make the penguins look a bit sickly, but in fact it is during this time that most penguins are at their most robust as they binge eat before their moulting period.  This is because during their moult, they can not feed as they lack the protective waterproof feathers. 

team assisting with rockhopperRockhoppers are found throughout the southern hemisphere in sub antarctic and temperate climates, from the Prince Edward Island near Marion Island all the way along Argentina, Chile, and New Zealand.  Like most species of penguin, they are experiencing a decline in population numbers, but are still at roughly 1 million pairs worldwide (not like our African penguins that are only at 22 000 pairs!). “ 

(Thanks to Volkswagen that we have a car we can use to collect our valuable seabirds)

Michelle Wcisel (Marine Biologist)

 

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Exciting Donations for Shark Research

great white sharkWell January 2012 has certainly kicked off well for shark research. Shark clients of Marine Dynamics have continued to be generous with two notable donations that we just have to tell you about. 

First Elias and Alexandre Jacobson from Sweden donated R10 000 (66 blocks) and then Rita Myers of the USA donated R15 000 (100 blocks). Rita is an educator working closely with racoons for Project Wildlife – one of them named Oli (perhaps after our biologist Oliver?) 

To learn more about our great white sharks, to understand their behaviour and therefore better protect them involves hours of dedication and serious funding. We borrowed equipment to start off with but have now purchased the necessary. Just to give you an idea: an acoustic tag costs R5000, the VR100 that receives the signal and provides all the necessary information another R100 000 not to mention fuel and other costs – so every donation is sincerely valued. 

We name sharks when doing fin identification data which helps us to build a population estimate. Soon a shark named Rita and Alexandre will be circling the bay.

 To have a shark named after you, donate 100 blocks or more….
We promise to send you a photo and you will be listed as one of the top Platinum supporters

 THANK YOU TO ALL OUR SUPPORTERS!

great white shark tagging group

Photo – L-R Aurie Kryzuda (USA) ; Brenda Walters (Operations Manager DICT) ; Rita Myers (USA) ; Oliver Jewell (Biologist DICT/MD); Claudine O’Connor (Fundraiser, DICT); Matt Nicholson (Biologist, Marien Dynamics)

DID YOU KNOW? It is estimated that there are only 3500-5000 great white sharks left in the world!

 

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Volunteer feedback

Christian, our volunteer that was here with the Rolex scholarship writes about his experience with us.  click here to read more http://owussnorthamerica.org/?p=1310

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Increasing Occurrence of Stingrays on White Shark Cage Diving Trips

stingrays on White Shark Cage Diving TripsThere has been an increased amount of stingray activity during shark cage diving trips on our boat, Slashfin.  The first occurrence was on the 6th of January on our morning trip.  We had a stingray (about 1.5m in length) come up to our bait line and nearly attempt to take a bite (the front of the disc actually came out of the water).  While this was going on, there was a 2 meter Great White Shark interested in our seal decoy (only about 8-10 meters away).  The two animals turned and swam towards each other until they were about 1 meter away, at which point they both seemed to get spooked and swam off in opposite directions.  This interaction is the first known of its kind, a surface interaction between a great white shark and a stingray.  Since this day we have noticed the rays coming up to the surface more often, on one occasion coming close enough to the back of the boat that we were able to get underwater footage of it free swimming.  

Increasing Occurrence of Stingrays on White Shark Cage Diving TripsAfter examining photographs and videos of the rays we have seen, it seems that the species that has been visiting us is known as a short-tail stingray (Dasyatis brevicaudata).  It is a very common species, and it is found here in South Africa.  It has been seen the shallows in both New Zealand and Australia, but is commonly found at depths of 180m or more.  It has been seen in both shallow in New Zealand and Australia, but is commonly found at depths of 180m or more.  Given that knowledge, it has been documented to move into shallow waters with rising tides, which could be one reason why we have seen them some days and not others.  The short-tail stingray is the largest species of ray in the world, growing upwards of 2 meters in length (the ones we have seen have been between 1 and 1.5 meters respectively).  This species is primarily benthic (bottom-dwelling) in nature, feeding mainly on benthic fish and invertebrates, but it is also known to move up into the water column regularly where it will feed on fish and other small animals. 

While it is not necessarily a surprise to see this species moving high into the water column, it is worth noting that they are doing this in the presence of great white sharks, a suspected predator of short-tail stingrays.  Another question to ask is why is this happening so often now, when previously these behaviors of coming up to bait lines and cage diving boats were almost unheard of.  It will be interesting to see if this trend continues, and what explanations we will be able to come up with elucidate this interesting behavior.

Check out the first sighting below Fasttrax was on board and recorded the footage below – you can feel the excitement of the guests on board

Matt Nicholson (Marine Biologist, marine Dynamics)

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NUCLEAR POWER STATION RESPONSE

In March 2010, the Dyer Island Conservation Trust submitted a letter of concerns regarding the proposed nuclear power station at Bantamsklip, just over 22kilometres from our head office.

Having attended public participation meetings, a real concern exists that Bantamsklip (believed to be the 3rd preferred site) is definitely earmarked for development.

The Trust has together with the Save Bantamsklip organization and Richard Pierce of Shark Conservation Society (UK) initiated a petition. This petition is currently supported by many of the shark cage diving operators in Gansbaai who are able to bring this topic to the attention of our international clients. The goal is a minimum of 10 000 signatures by the end of November.

The response recently received from Arcus Gibb on behalf of Eskom show that the Trust has been instrumental in raising the profile of this incredible marine area by:

-           highlighting Dyer Island as an Important Bird Area recognized by Birdlife International

-           noting the presence of the Leach’s storm petrel

-          noting the presence of the Indo-Pacific Humpback Dolphin (which had been left out of the Environmental Impact Assesment)

-          highlighting other marine species not covered in the EIA

Most importantly, Dr Peter Best of the University of Pretoria, will in future be consulted regarding the species of this area and any possible monitoring programmes.

We do not feel all our questions were sufficiently answered and a second draft EIA has been done for which the deadline for comment is 7th August 2011.

To read the full response click here. Our original submission can be read here.

save bantamsklipMore information can be viewed at www.savebantamsklip.org

Eskom’s website: www.eskom.co.za/eia under the “Nuclear 1-Generation” link

Arcus GIBB website: http://projects.gibb.co.za/ under the “Nuclear 1 EIA” link

If you interested in following the developments, you can register as an Interested and Affected Party

e-mail: nuclear1@gibb.co.za / nuclear-1@gibb.co.za

The Trust will actively continue our research into our marine species so that we can better understand and protect them.

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The Trust supports rescue and rehabilitation centre Penguins Eastern Cape

african penguin taggedThe passionate and dedicated team at Penguins Eastern Cape (Cape  St. Francis) led by Trudi Malan had their hands full this festive season.  Every year as the penguins go into their annual moult lasting about three weeks, they are unable to swim and feed so any late breeders are forced to abandon their chicks. These chicks are sent to the rehabilitation centre to be hand fed until they are ready to be released. This chick bolstering programme is part of the conservation management plan. With the African penguin being classified as endangered and only around 22 000 breeding pairs left, every penguin counts. This past year has seen 400 penguins at the centre from St Croix Island and Bird Island. Most of the penguins have now been released – to date  160 birds are still at the centre.

rescue and rehabilitation centre Penguins Eastern CapeWith the help of the donations the Dyer Island Conservation Trust receives we were able to pass on the goodwill and send Trudi and her team R10 000 to help towards the costs of care for these juvenile penguins. At this time 100kg’s of sardines per day can be consumed.
The centre has a viewing area for the public where they can see some favourites such as Roxy, Goofy, the committed couple Nip & Tuck (penguins are monogamous) and the blind Stevie.

Check out their wonderful work on www.penguin-rescue.org.za

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Lauren Waller awarded her PhD

Lauren Waller

Dr. Lauren Waller

The Trust congratulates Dr Lauren Waller on being awarded her PhD for her work on The African Penguin Spheniscus demersus: conservation and management issues.

The Trust helped support Lauren’s studies and her work embodies a great deal of time, dedication and passion to the African penguin.

As per Prof. Les Underhill of the Animal Demography Unit:

“This thesis examines the broader conservation issues facing the African Penguin. Through an analyses of aspects of African Penguin population demographics, biology and behaviour, including adult moult phenology and breeding trends, chick condition, adult foraging behaviour and their relationship to pelagic fish stocks, the manner in which the African Penguin interacts with the marine environment is examined. Comparisons are made between colonies throughout their distribution, and it is shown that African Penguins at different colonies do not respond to pressures or changes in their environments in a uniform manner, a factor which will have an impact on conservation management decisions. During the time that this study was undertaken, the conservation status of the African penguin changed from “Vulnerable” to “Endangered” according to the World Conservation Union (IUCN). The final chapter in the thesis examines the legislative context that provides for the protection of the African penguin in South Africa. It discusses the potential that the Biodiversity Management Plan for the African Penguin, drafted under the National Environmental: Biodiversity Act (No. 10 of 2004) will have in uniting stakeholders and focusing conservation efforts according to priorities.”

To read more see www.adu.org.za where you will also find a copy of Lauren’s thesis for download.

Also note the interesting information on the recent satellite tagging of the juvenile African penguin.

 

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Leatherback stranding

 

Michelle Wcisel and Leatherback turtle

Biologist Michelle Wcisel and Leatherback turtle

While filming with Blue Note Productions for their latest documentary in 3D, marine biologist Oliver Jewell discovered a deceased stranded Leatherback turtle amongst the rocks.  “I couldn’t believe it, I just happened to look down and – bam, it was there!”

Leatherback turtles are the largest living turtle in the world.  Their front flippers can exceed 3m in length and can weight upwards of 700kgs – surprisingly off of a diet almost entirely of jellyfish.  They are found in all oceans of the world and are incredibly deep divers – easily reaching 1km or more.  This is why their shell has the array of pleats or keels along the length.  While down at those extreme depths, the shell folds in like an accordion crushed by the pressure of the water but becomes very strong to protect the turtle’s organs.

Leatherback strandings are fairly rare in these parts and their population structure in South Africa is still a work in progress.  It’s impossible for us to tell how this Leatherback met it’s end, but a rather large skull injury was present.  In general, their main threats in South Africa are pollution (plastic bags look a lot like a jellyfish), long-lining, and anti-shark nets. 

If you find a stranded animal – living or deceased, please contact us anytime 24-7 at 082-907-5607.

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Shark Entertainment Inc. donates to DICT

Shark Entertainment Inc. donates to DICT

L-R: Cameraman Tony Sacco; Wilfred Chivell; Alison Towner: Producer Jeff Kurr

For Dyer Island Conservation Trust’s senior biologist, Alison Towner, Christmas came early.  Once they wrapped up shooting for 2012’s Discovery Channel Shark Week, Jeff Kurr of Shark Entertainment Inc. donated the “Shark Spy” system.  “Shark Spy” is an underwater HD panning/zooming camera that can be mounted at the bottom of the sea to monitor activity.  Make sure you check out next year’s SharkWeek to see the incredible footage “Shark Spy” can capture!

For us at the Trust, this is a dream come true.  Alison explains, “There is so much we don’t know about down there.  There are tons of smaller sharks, fishes, and rays that have never been seen before, it’s just incredible! 

Jeff Kurr and biologists Alison Towner and Matt Nicholson

Jeff Kurr and biologists Alison Towner and Matt Nicholson learning how to effectively use the camera.

This technology will provide us with yet another way to study and protect the animals of this area.”

Alison Towner is currently writing up her Masters thesis on the behaviour of the great white sharks in relation to environmental parameters.

You can read more on her shark blog.

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Baby Cape fur seal stranded at Danger Point

cape fur seal

Michelle with baby Cape Fur Seal

During the month of December, we often get many reports of stranded Cape fur seal pups. Pupping time is in full swing and the massive (+300kg) adult males are still on the island causing chaos defending their territories from rival males – and it is during that chaos that many pups are kicked off the island. Usually when we receive reports of stranded pups, they are often beyond our help either by injuries or they have perished during their long journey to the beach.

And then there was the case of “Rori.” We received a call in the late afternoon of 4 December, detailing a stranded seal pup at Danger Point (some 10km from Geyser Rock!),

baby cape fur seal

Baby Cape Fur Seal being transported on boat

but we were assured this pup was very strong – and indeed he (or she) was! It’s hard not to fall in love with any baby Cape fur seal, but this seal in particular captured the hearts of our two Dyer Island Cruises marine biologists, Lori Beraha and Michelle Wcisel, and our volunteers Sari, Larissa, Keike, and Ellie. “We knew we had to try and get him back to the island,” Michelle stated. “Even with the chance of him reuniting with his mother or being adopted by another being very low, a small chance is better than no chance at all.”

When asked why not rear the seal on land with a bottle, Michelle explained, “A fed seal is a dead seal, just like the baboons. Unfortunately, as soon as animals associate humans with food – they are often killed by the wrong type of human.”

cape fur seal colony

Back home again :-)

Rori was transported early the next morning on Dyer Island Cruises’ boat-based whale watching vessel, “Whale Whisperer” to Geyser Rock, where Lori and Michelle worked to orientate him back towards the seal colony. “It was very important to us to see that Rori was calling to the colony and very eager to get back to the seals,” explains Lori. “Perhaps his chances are better than most.” Then Rori’s big moment came when skipper Albert Scholtz expertly placed the Whale Whisperer precariously near the rocks, and we were able to give Rori one last boost of confidence before making his fling to freedom. “Ok – 3, 2, 1, GO!” Michelle shouted, and Rori made a graceful dive into the water next to the colony.

At first, Rori was reluctant to leave his new family on the Whale Whisperer, but after seeing his seal kin, Rori climbed back onto the island and continued to crawl into the interior. “This is as much as we can do, it’s up to him now!” Skipper Albert cheered. It’s impossible to tell whether or not Rori will survive, but marine biologists Lori knows otherwise. “I get the feeling every time we pass Geyser Rock that he’s looking at us thinking – I know those people!”

If you encounter any wildlife in need of rescue or any stranded animals, please contact us anytime at 082-907-5607. Remember, not all stranded/rescued animal stories have such a happy ending as Rori’s, but we do our best to make it possible.

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