Pelagic Magic

Pelagic Magic

AD010

Diving with the denizens of the deep Divers in Cape Town are truly blessed. Not only do we have the luxury of having two coastlines to choose from (ensuring almost year round dive-able conditions) but we also have the option of venturing offshore foriving with the denizens of the deep Divers in Cape Town are truly a mind-blowing blue water experience. This is an almost unknown part of the Cape Town dive experience, probably more due to the option not being well known, than anything else.

Text and images by Jean Tresfon

Unlike the frigid waters of the Atlantic, or even the temperate waters of False Bay, the pelagic waters offshore of Cape Point are usually warm and clean. And for the Cape Town locals I don’t mean 14ºC and 5m visibility!

We’re talking about 22ºC plus and 30m visibility. Most of the diving is done in the area known as the canyon (named after the sea floor geological structure) which is approximately 22 nautical miles south west of Cape Point and lies smack in the heart of the tuna fishing grounds. The sea floor here lies at 600m deep so bottom times are fairly limited! Most diving is done on snorkel, and in certain instances tanks can be used but all of the diving is done in no more than the top 10m of water. The trip out takes about 2 to 3 hours depending on the weather and the departure site. It is possible to leave from Simonstown, Miller’s Point or Hout Bay. The sea can get fairly rough out there so it’s best to make sure that motion sickness tablets are taken prior to departure. Target species are mainly the blue sharks and the mako sharks, but yellowfin tuna and longfin tuna sightings are fairly common and we’ve even seen sperm whales and killer whales out there! The blue sharks are the most widely distributed animal in the world and are found in deep waters from the surface to 350m down. They grow to a maximum length of just under 4m and a maximum weight of about 200kg, but most of the local sightings are of much smaller individuals. The mako sharks are obviously also found in deep waters from the surface down to 150m. They grow to a maximum length of 3.5m and 450kg, but once again most local sightings are of smaller individuals. The mako is one of the fastest fish in the sea and has been known to leap clear of the water. Both of these shark species are stunningly beautiful when seen in their natural environment.

AD001

Diving with these animals is completely safe as long as certain protocols are followed and common sense prevails. Gloves are definitely recommended as bare hands closely resemble prey items. All shiny objects attract a nibble from the sharks and should be kept to a minimum. Gaps between wet suit pants and booties should be avoided or covered and flailing of arms and hands is definitely a no.  Hands should stay on the camera or arms should be folded if not taking pictures. Photographers should be aware that the sharks find the strobes very interesting, especially when the capacitor is recharging after a shot has been taken. It is a good idea to always keep an eye on what is happening around you. Photographers in particular should not keep their eyes glued to the viewfinder; rather they should take frequent looks behind, below and above. The sharks are masters at sneaking up unseen from behind and seem to always know which way you are looking. Divers should be cognisant of the fact that these are wild animals and you are a long way offshore and far from any medical facilities. The point is to have a fun and safe interaction. If at any stage you feel uncomfortable then by far the best idea is to leave the water, rather than allowing the situation to escalate.

AD002

People viewing the photos often comment on how brave or crazy we are to swim with sharks. The reality is that if done properly there is very little danger. The animals are beautiful and it is a privilege to be able to share their space. Once a suitable area has been found, normal procedure is for the operator to lay a chum line of chopped sardines in the water. The sharks work their way up the line towards the source of the scent trail. It is not uncommon to have five or more blue sharks in the water at one time along with a mako or two. Opportunities abound for great interactions and this type of diving is a photographers dream. The sharks are fairly bold and swim right up to the divers allowing for stunning image making. Obviously there are no guarantees in nature and it is also possible to spend a whole day out with no sharks.

AD005

My first trip out to the deep was with veteran operator Chris Fallows of Apex Shark Expeditions. Chris has been doing this for a long time and really knows his stuff. With many divers on board he prefers to use a cage, less for protection from shark bite and more for keeping the divers close to the boat in the current and being able to put the sharks right in front of the divers. On this occasion the tuna and sharks were plentiful and we all had about half an hour each in the cage. Although this is without a doubt the safest way to conduct these dives I found the cage to be quite limiting from a photographic perspective. You cannot move around to change the angle of the sun and arrange all elements of the composition to your satisfaction. I did however get some good results, and Chris and his assistant Poena have an incredible knowledge of their subject.

AD004

My second trip out to the tuna grounds was with Steve Benjamin of Animal Ocean. Steve is a qualified ichthyologist, and probably the most enthusiastic guy you will ever meet. This was not my best ever trip, through no fault of Steve’s. I did not take any motion sickness tablets and the sea was particularly rough on the day. I spent several hours lying in the bottom of the boat wishing that I could just die quickly. Steve just never gives up, and ordered me into the water with all my excuses falling on deaf ears. There were five blue sharks and two makos under the boat and he would not let me go home without a photograph. Steve does not use a cage but always has a safety diver (usually himself) in the water to watch his clients’ backs and to get them out of the water if the sharks behaviour changes. Steve is a really experienced guide having worked the sardine run with Mark Addison of Blue Wilderness for many years, and it really shows.

AD011
My latest pelagic trip was on the inaugural charter to the deep run by Grant Whitford of Blueflash Charters. This was probably also my best trip in terms of shark interactions, but it is possible to have too much of a good thing and some valuable lessons were learnt that day. We ended up with just two divers in the water with seven blue sharks and a mako, and took some stunning shots. Both the mako and two of the blues seen on this trip had fish hooks stuck in the corner of their mouths and were trailing strands of fishing line. Just another stark reminder of the over-fishing of our oceans, were another reminder needed.

AD003
For those wanting some tips from a photographic perspective:

1. Use a high shutter speed to freeze movement.
2. Use a wide angle lens and get close. 3.If possible use a strobe(s) to light up the sharks from below.
3. Try using a motor drive and take bursts of several shots as the animals approach.
4. Use other divers to lend scale to the photos.

One thing is for certain… you will come back with a changed perspective on what the media continually labels as mindless man-eaters.
AD008

AD007

AD009

Cape Catsharks – curiouser & curiouser

Cape Catsharks – curiouser & curiouser

A pyjama party: catsharks are social animals and sleep in piles under convenient overhangs (Jean Tresfon)

Mention Cape Town diving and the conversation turns inevitably to sharks. By ‘sharks’ people usually mean the big toothy brutes which are firmly, if irrationally, believed to spend their days cruising in search of a feast of tender human flesh.  These same people are also usually slightly incredulous to discover that though there are many sharks seen around the Cape Peninsula by scuba divers, the sight of them is extremely rarely traumatogenic.

Text by by Georgina Jones

This is because most of the sharks seen around Cape Town are small and more likely to inspire the ‘oh cute’ reflex than a mental replay of the soundtrack from ‘Jaws’. They are part of a big group known as catsharks, the Scyliorhinidae. About 100 species are found worldwide in tropical and temperate waters, although catsharks are usually found in very deep water. We are fortunate around South Africa not only to have 16 species in our area, 11 of them endemic to the region, but also, that several of them are inshore sharks so that, as divers, we have the pleasure of seeing them bustling about the reefs and wrecks on their business.  Around the Cape Peninsula, four species are commonly seen.

 

 

 

 

 

 

 

 

 

 

 

 

A pair of pyjamas (Jean Tresfon)

The biggest of the four is the distinctive pyjama catshark (Poroderma africanum), growing up to a metre in total length. As one might guess from the name, the pyjama catshark is striped. Its close cousin is the leopard catshark (Poroderma pantherinum), and unsurprisingly, it has leopard-like rosettes and spots arranged in stripes on its body. Rather like its namesake, the leopard catshark is very much a creature of the night and is only rarely seen during the day, preferring to while away the daylight hours sleeping under overhangs or in caves before setting forth to hunt for its prey.

A pyjama catshark at ease (Jean Tresfon)

Their smaller cousins are the puffadder shyshark (Haploblepharus edwardsii), a lovely golden-brown creature marked with several white-spotted saddles; and the dark shyshark (Haploblepharus pictus), which is more often seen on the Atlantic side of the peninsula. This is a stockier animal, having dark saddles which may have yellowish spots.  These sharks are all oviparous, which is to say their young develop in egg cases, which the females lay in pairs. Mating is a vigorous affair, with the male biting the female on her pectoral fins to hold her in position so that he can insert his claspers. Though the females often show signs of skin damage post mating, they seem untroubled, swimming off afterwards without hesitation. It is the males who come off the worst, with older males showing signs of scarring and calcification on their claspers. Clearly male catsharks are made of stern stuff.

 

A puffadder shyshark going about its business on a Cape reef (Geoff Spiby)

In due course the female will lay a pair of eggs in cases known as mermaid’s purses. Females can sometimes be seen with tendrils trailing from their bodies. These are part of the egg cases and after while, they seem to irritate the female, which goes in search of an upright support such as a sea fan and begins to swim around it. This causes the strings to catch on the support and the circular swimming helps to gradually pull the egg case out. The yolks are easy to see through the surface of the egg case, and occasionally the embryonic shark can be seen wriggling inside as well. The egg cases are a potential feast for carnivorous snails, octopus and other sharks. The lucky occupants which avoid the attention of predators emerge after 3-6 months, biting their way out of the egg cases and setting off to seek their own prey. They are very small at this stage, all of them smaller than 15cm, and frequently become another predator’s dinner. If they manage to escape from the many hungry mouths on the reefs, they feed on small bony fishes, crustaceans and octopus and may live for over twenty years.

 

A puffadder shyshark peers out from a dense forest of feather stars (Geoff Spiby)

This group is also known as shysharks because of its members’ habit of curling up into a ball with their tail or pectoral fin over their eyes when threatened. It is possible that the purpose of this action is to produce a bigger shape which is more difficult for a predator to swallow. Given that the total diamater of the ball is often not much over 20cm, this probably doesn’t discourage
many predators other than the smaller ones. It does raise their cuteness factor though. So yes, Cape Town diving, sharks, lots of them. But scary sharks? No.

 

Jean Tresfon

Jean Tresfon
Jean Tresfon
Jean Tresfon

Jean Tresfon is an underwater photographer by inclination if not by profession. Born and bred in Cape Town, he started diving in 1990, completing a 1-star certification through SAUU. Diving quickly became an all consuming passion and in 1995 he became a PADI certified instructor and ran a dive charter boat for a number of years. In 1998 he gave up the charter business and joined the world of commerce, but continued to spend every spare moment underwater. For the next five years he concentrated his efforts on the shipwrecks of the West Coast area, researching and diving on as many wrecks as possible. Then in 2002 he bought his first digital camera in a waterproof housing and was completely hooked.

Jean has travelled extensively, having dived in the Carribean, the Canary Islands, Gibraltar, the Isle of Man, Kenya, Zanzibar, Pemba, Mauritius, the Maldives, the Red Sea, Indonesia and West Papua, as well as the Philippines and Micronesia to name but a few. However he still prefers the cold waters of the Cape to any other dive destination, and believes it to be one of the world’s finest venues for underwater photography with a truly astounding variety of subjects.

error: Content is protected !!