Diving

Diving "White Death"

Great White Shark Diving

HANGING OUT WITH GREAT WHITE SHARKS IN SOUTH AFRICA

Sharks have always fascinated me and none more so than the infamous great white. Since first watching David Attenborough’s Wildlife on One, I’d envisioned one day experiencing a close up encounter with the most notorious of beasts that lurk the deep blue. Feared by most who step foot into the water, great white sharks have unjustifiably earned themselves a bad reputation through exaggerated media stories and, most notably, the blockbuster film Jaws

The great white shark is listed as a vulnerable species on the IUCN red list, however, estimations made by leading shark biologists state there are fewer than 3,500 individuals, making them more vulnerable to extinction than the tiger. Some sources claim that their population is growing while others argue it is declining. In light of this, I felt it was high time I realised my dream of coming face-to-face with the sharks before it might be too late.

It was during my spell in South Africa that the time had come to bring my long awaited meeting with Carcharodon carcharias to fruitionI had been travelling along the picturesque Garden Route and chose to spend a few days in Hermanus, a quaint little town situated on a mountainous bay and one of the world’s hotspots for whale watching. Between May and September, southern right whales annually migrate from the Antarctic to give birth to their young in the warmer waters of South Africa’s coastline. The town is also situated about a 40-minute drive away from one of the most famous great white shark hotspots in the world, Gansbaai.

I entrusted White Shark Ecoventures to ensure that there would be no chance of disappointment. After a quick breakfast and an induction informing us on all of the safety regulations, we set off out to sea. My initial excitement quickly turned to apprehension as the realisation set in that I would soon be plunging into the water with a one-and-a-half-tonne fish that some call “White Death”. I began to play out disastrous scenarios in my head, asking myself questions such as “What if the cage detaches itself from the boat and we sink toward the seabed?”, and “What if the shark breaks through the cage and gobbles me up?”

Before I knew it, we had arrived at Shark Alley and the boat engines came to a halt. A pair of tuna heads coupled with a bucket full of chum were tossed into the surrounding water and then the wait began. Around half an hour of gazing into the grey/blue void had passed before a large silhouette emerged from the depths of the murky sea. I suspiciously squinted my eyes to block out the glare reflecting off the shimmering surface, and then I was certain. “Shark! shark!”, I excitedly called to the boat captain as the ten-foot-long adolescent male menacingly glided closer toward the starboard side of the boat. Without a moment’s hesitation, we were instructed to put on our snorkels and climb down into the steel cage. Still nervous about all of the potentially catastrophic situations that had been running through my mind, I cautiously lowered myself into the only thing that would separate me from the three sharks that were already circling the boat. Strangely, all of my worries filtered away and were replaced with serenity the moment I entered the water. There was something so tranquil about being alone with my thoughts beneath the ocean swell.

As the first shark gradually appeared from out of the shadows, I remember feeling completely at peace, entirely without fear as the apex predator gracefully edged closer. As he quietly swam by, I couldn’t help but stare intensely into his almost extraterrestrial jet black eyes. Though virtually impossible to distinguish exactly where a great white is directing its gaze, somehow I knew that he was looking at me, sussing me out.

Soon after, two more sharks began to encircle the boat and I found myself surrounded from all angles. I never felt threatened, not once. Sharing a few moments in the cold South African winter waters with the great whites helped me to understand that they had absolutely no interest in causing me any harm, despite a few heavy bumps against the cage. Each shark was only interested in the bait that had lured them into our vicinity in the first place.

It was only when the sharks surged for the glum looking tuna heads that I was reminded of the immense power and killer instinct that great whites possess. With the ability to accelerate from a leisurely swim to incredible speeds in the blink of an eye, each shark would dart toward the bait with eyes rolled back and jaws wide open. On a few occasions, some of the sharks would actually breach, thrashing their streamlined bodies around as they cleared the water surface entirely.

After spending around an hour in complete euphoria in the water, it was finally time to call it a day and we reluctantly headed back to the harbour. I spent the next few days totally in awe of the brief encounter I’d had with one of the greatest forces of nature to inhabit our planet.

Shark populations have been decimated over the past 100 years due to overfishing, trophy hunting, culling and finning. There are some that firmly believe that these atrocities are beneficial to mankind and that due to unprovoked attacks on humans, we would be better off in a world without them. I’d argue that stepping out of our natural environment and into theirs is to provoke a naturally curious animal and that as apex predators, sharks are undoubtedly essential for maintaining healthy ecosystems that we and many other species depend on. Furthermore, attacks on humans are extremely rare and are often a consequence of mistaken identity.

Since that significant day I spent in Shark Alley, thoughts have stirred in my mind about what it would be like to live in a world without great white sharks and how many more species would soon follow them into extinction. As custodians of our beautiful planet, I believe that it is our moral obligation to ensure that this very real possibility does not become a tragic reality.

(The Real) Fantastic Beasts and Where to Find Them - Cetaceans

This article was originally published by Youth Time Magazine

This article was originally published by Youth Time Magazine

Today is National Dolphin Day! With some of the world’s most iconic shark species covered in the previous edition of (The Real) Fantastic Beasts and Where to Find Them, this week we stay submerged in the watery ecosystems of this world and learn about another large family of aquatic animals – the cetaceans!

Comprised of a number of well-known families, including whales, dolphins and porpoises, the cetaceans are a group of widely distributed marine mammals. Around 89 species are divided into two groups including the Odontoceti, or toothed whales, and the Mysticetior, or baleen whales. Below, we take a deeper look at the most famous of them all and discover tips on where to best witness them in their natural environment.


Blue Whale

Blue Whale Distribution

We’ll begin with arguably the most famous of all the whales – the Blue Whale. Not just the biggest of all cetaceans, but claiming the title of largest animal ever to inhabit our planet, the Blue Whale can reach enormous lengths of up to 30 metres and grow to weights of up to 180 tonnes! Due to commercial whaling, their numbers depleted significantly throughout the 19th and 20th centuries, but their population has steadily increased since being protected worldwide from 1966. The IUCN estimates the Blue Whale population at between 10,000 – 25,000 individuals - with the greatest number residing in Antarctica before whaling began. For excellent chances of observing these colossal beasts, head to Mirissa in Sri Lanka.


Sperm Whale

Sperm Whale Distribution

Reaching lengths of up to 20.5 meters, the Sperm Whale is the largest of the toothed whales and is considered to be the biggest true predator in the world today. A pelagic mammal, they have a worldwide ranges and will migrate seasonally for breeding and feeding purposes. Other impressive facts about these gigantic cetaceans include having the largest brain of all animals and being the second deepest diving mammal, second only to the Cuvier’s beaked whale. The species was once considered vulnerable to extinction as they were a prime target of the whaling industry for their spermaceti oil which was used for oil lamps, candles and lubricants. Their worldwide numbers are now estimated at anywhere from 200,000 to 1,500,000 individuals. Visit Iceland between May and August for the best chances of witnessing the gentle giants.


Humpback Whale

Humpback Whale Distribution

Most famous for their trademark breaches and other distinctive surface behaviors, Humpbacks are one of the most widely observed species during whale watching tours worldwide. Like the blue, fin, and right whales, Humpbacks are a species of baleen whale that feed mostly upon plankton and small crustaceans. They inhabit all major oceans with four global populations found in the North Pacific, Indian, Southern, and Atlantic Oceans. There are believed to be 30,000 – 40,000 Humpback Whales left in the world, making up around 30% of their original population. Saguenay – St. Lawrence Marine Park in Québec is a great place for Humpback Whale watching tours, but if you want to get a little closer and try swimming with them then head to Silver Bank in the Dominican Republic.


Southern Right Whale

Southern Right Whale Distribution

One of three species classified as right whales (along with the North Atlantic Right Whale and North Pacific Right Whale), the Southern Right Whale is the most abundant in the family with up to 10,000 individuals roaming the waters of the southern hemisphere. They are one of the whale species that are highly active on the water surface and demonstrate a natural curiosity toward human vessels making the Southern Right Whale one of the most popular of all species during whale watching tours. Hermanus in South Africa is known as the mecca for spotting Southern Right Whales, an area which they migrate toward during the winter months between June and October


Fin Whale

Fin Whale Distribution

The second largest of all the cetaceans and animal species in general is the Fin Whale. They can be found in all the major oceans, with the highest population density occurring in cool and temperate waters. With an estimated 100,000 individuals left, they have been listed as an endangered species by IUCN. Despite the International Whaling Commission (IWC) issuing a moratorium on commercial hunting of the Fin Whale along with many other whale species, they are still often hunted in Iceland and Japan, which has contributed to their slower recovery rates. Regular encounters with Fin Whales occur on whale watching tours across the globe. They can be encountered year-round in the Southern California Bight and be seen inshore from June to February in southern Ireland.


Narwhal

Narwhal Distribution

Nicknamed the “Unicorn of the sea”, the legendary Narwhal is a pale-colored porpoise with a distinctive spiraled ivory tusk and can be found only in Arctic coastal waters and rivers. Though females do sometimes grow a small tusk of their own, it is the male’s which grow the most prominent – reaching lengths of up to 8.8 feet. The purpose of the tusk eludes scientists to this day, but common theories include its use to impress females and to battle rival suitors. Narwhals typically travel in groups of 15-20, but gatherings of hundreds and in some cases, several thousands have been reported. Divided into around 12 subpopulations, Narwhals are thought to number at around 50,000 – 170,000 individuals. To spot them in their natural environment, head to Arctic Bay- a Hamlet in Baffin Island, Canada.


Beluga

Beluga Distribution

Also known as melonhead or sea canary (due to its high-pitched twitter), the Beluga is closely related to the previously listed narwhal. With an all-white coloration and an echolocation organ situated within the protuberance at the front of its head, the Beluga is well adapted to life in the Arctic. Male Belugas can grow up to 18 feet long, making their body size somewhere between that of a dolphin’s and a true whale’s. They occur broadly in Arctic and Subarctic waters using a diverse range of habitats. The Beluga population is estimated at around 200,000 individuals, divided into 21 separate populations. Churchill, a town located on Hudson Bay in Canada is a popular hotspot for viewing and even swimming with Beluga.


Orca

Orca Distribution

More commonly known as the killer whale and often referred to as “Wolves of the seas”, Orca are one of the most distinctive of all cetaceans. Despite their name, they belong to the oceanic dolphin family, of which they are the largest member. Orcas are considered the most cosmopolitan of all cetaceans, inhabiting a wide variety of marine environments from Polar Regions to tropical seas. A highly social species, they are well documented for their sophisticated hunting techniques and vocal behaviors. In fact, their behaviors differ greatly between groups and are passed on through generations, leading scientists to describe the phenomenon as a manifestation of animal culture. Due to the likelihood that two or more Orca types can be considered separate species, the IUCN lists the species conservation status as data deficient. Caleta Valdes, Punta Delgada and Punta Norte in Patagonia, Argentina are among the few places in the world to witness the particular Orcas which approach the shore to hunt seals. For more reliable viewings, however, head to the lively village of Grundarfjörður in Iceland.


Amazon River Dolphin

Amazon River Dolphin Distribution

The only freshwater species on this list, the Amazon River Dolphin or Boto can be found swimming through the Amazon River Basin of Brazil, Peru, Ecuador and Bolivia and the Orinoco River Basin of Colombia and Venezuela. Due to limited amount of information on population numbers and trends, in addition to little knowledge on threats and ecology, the Amazon River Dolphin’s conservation status is listed as data deficient by IUCN. These pink-colored cetaceans are one of just five dolphins that make their homes in the rivers of this world. The friendly and highly social Amazon River Dolphin is also considered the most intelligent of the river dwelling cetaceans, with a brain capacity 40% larger than that of humans. Population estimates are highly unreliable for this species, but a good place to see them in larger numbers is the Pañacocha Lagoon in the vicinity of the Yasuni National Park, Ecuador.


Common Bottlenose Dolphin

Common Bottlenose Dolphin Distribution

The most familiar of all dolphin species, the Common Bottlenose Dolphin is the largest of all the beaked dolphins and number at around 600,000 individuals worldwide. Absent only from the icy polar waters of the Arctic and Antarctica, they mostly inhabit temperate and tropical oceans throughout the world. They typically lives in pods numbering around 15 individuals, but have been observed swimming together in groups of over 100, and occasionally 1000 animals in what are known as super pods. Monkey Mia, located on the west coast of Australia is known as one of the most reliable places to observe Common Bottlenose Dolphins in their natural habitat. In fact, the friendly pod are well-known for visiting the beach on a daily basis where they regularly interact with humans.


All photos by Shutterstock/Graphics by Leigh Woods

(The Real) Fantastic Beasts and Where to Find Them - Sharks

This article was originally published on the Youth Time International Magazine Website

This article was originally published on the Youth Time International Magazine Website

In this edition of (The Real) Fantastic Beasts and Where to Find Them, we take a plunge into the deep blue!

Between 700,000 and one million species are thought to live in the reefs, rivers, seas and oceans of this world – many of which remain relatively unknown. That cannot be said of the next group of fantastic beasts we dive into this week - the sharks!

From much-feared apex predators like the Tiger and Great White Sharks to gentle giants such as the Basking and Whale Sharks, below we learn some interesting facts about the Chondrichthyes and where to find them.


Great White Shark

Great White Shark Distribution

Let’s begin with the most famous shark of them all - the Great White Shark. When it comes to estimating populations of marine life, things can get quite tricky with the last global census in 2010 stating that only 3,500 Great Whites remained. However, in February 2018 researchers claimed that at least 8,000 Carcharodon carcharias were present in the waters off Australia, meaning the global population is likely far greater than initially thought. In comparison with other widely distributed species, the Great White appears to be fairly uncommon. They can be found from the surfline to far offshore and have also been known to swim to depths of over 250 meters deep. For the best chances of spotting Great White Sharks, head to Gaansbai in South Africa where you have the opportunity to cage dive with one of the most awesome creatures that ever lived.


Basking Shark

Basking Shark Distribution

One of the largest of all extant Chondrichthyes (surpassed only by the massive whale shark), the Basking Shark is a gentle giant that feeds mostly on plankton. They inhabit all oceans of the world, but tend to prefer the cold and temperate waters that lie above the continental shelves. However, through use of GPS tracking devices, researchers recently discovered the species dwelling in warmers waters far south of the equator. Like many animals, their location depends largely on food availability. The southern and southwestern coasts of the Isle of Man in the United Kingdom provide one of the best opportunities to see Basking Sharks close inshore.


Great Hammerhead Shark

Great Hammerhead Shark Distribution

One of the most distinguishable of all sharks for their distinctive head shape, Great Hammerhead Sharks are the largest of the 9 different species of hammerhead. A migratory and nomadic species, they are widely distributed but largely restricted to continental shelves. The Great Hammerhead is listed as endangered on the IUCN Red List as they are highly valued for their fins and suffer very high bycatch mortality. The fact that these magnificent predators only reproduce once every two years make them highly vulnerable to over-exploitation and population depletion. Exceptional sightings of Great Hammerhead Sharks can be found in Bimini in the Bahamas, especially between January and March each year where they patrol the shallow sandy shores around the tropical Caribbean island.


Tiger Shark

Tiger Shark Distribution

Also known as the “sea tiger”, the Tiger Shark is so named for its dark vertical stripes along its body. With the largest ever recorded at a whopping 25 feet, they are considered the fourth largest shark species behind the whale shark, basking shark, and great white shark. The omnivorous Tiger Shark is quite common in tropical and warm-temperate coastal water worldwide. Though not considered to be facing a high risk of extinction, there is evidence to suggest declines of several populations where they have been heavily fished for their fins, flesh, skin, liver oil and cartilage. Despite their bad reputation, Tiger Sharks are a rather docile species. Tiger Beach in the Bahamas is widely considered the world’s best location to dive with Tiger Sharks. For the best chances of spotting them, head there in early April.


Whale Shark

Whale Shark Distribution

The Whale Shark’s body dimensions give it the title of world’s largest fish and therefore, also the biggest shark. In fact, they share part of their name with cetaceans for their enormous size - sometimes growing up to 40 feet in length! In addition to their impressive stature, the Whale Shark is undoubtedly one of the most beautiful in the family with light spots on its ventral surface forming unique contrasting patterns against their largely blue-grey coloration. Like the basking shark, these gentle giants feed mainly on plankton, but occasionally consume small animals including jellyfishes, squids and crabs. They tend to prefer coastal areas, but inhabit both deep and shallow water with temperatures between 20-30 degrees Celsius. Many places in the world offer the chance to see and even swim with Whale Sharks with the best places to do so usually depending on the time of year. Those destinations where Whale Sharks can be seen over the course of longer periods are South Ari Atoll in the Maldives and Donsol Bay in the Philippines.


Bull Shark

Bull Shark Distribution

Also known the Zambezi Shark, this short and sturdy predator is so named for its brawny body shape and perhaps also due to its hostile nature. Their short, blunt snout and tendency to head-butt their prey before attacking also add to the likeness. One of the most aggressive of all shark species, the Bull Shark has evolved to live in both saltwater and freshwater and is commonly spotted in the Mississippi River in the United States and Ganges River in India. While not currently considered to be vulnerable to extinction, their numbers are likely shrinking due to overfishing for their meat, hides and oils. The “Pitbull of the sea” can be difficult to locate, but they’re regularly spotted by scuba divers in the deep reefs of the Caribbean waters situated off Mexico’s Yucatan coast.


Blacktip Reef Shark

Blacktip Reef Shark Distribution

For the fainter-hearted, the timid and skittish Blacktip Reef Sharks are easily identified for the striking black tips on their fins. Inhabiting the tropical coral reefs of the Indian and Pacific Oceans, they are among the most abundant sharks found off the coasts of Southeast Asia and northern Australia. Another species that has been known to enter freshwater environments, Blacktip Reef Sharks mostly prefer shallow, inshore waters where they feed upon small fishes, squids and crustaceans. There are many small scuba and snorkeling tour operators located in Thailand, Indonesia and the Philippines that offer the chance to get up close to these beautiful predators.


Blue Shark

Blue Shark Distribution

Widely regarded as one of the most beautiful of all sharks, the magnificently streamlined Blue Shark are so-named for their striking cobalt blue colour. A common and widely distributed species, the Blue Shark can be found off the coasts of every continent except Antarctica. Observations are made mostly by divers in temperate seas, where the Blue Shark has even been known to approach the shore. While in tropical waters, however, they tend to stick to greater depths. The IUCN currently has the species listed as near threatened, but their numbers are likely dwindling due to the species being a popular choice for shark fin soup. For excellent chances of spotting these sleek and nimble sharks, head to Simonstown, South Africa where scuba and snorkeling tours are offered between November and June.


Greenland Shark

Greenland Shark Distribution

With a lifespan of 300-500 years old (you read that correctly), the Greenland Shark is widely considered to be the oldest extant vertebrate in the world. Also known as the gurry shark or grey shark, they mainly inhabit the icy waters off the coast of Greenland where they feed upon smaller sharks, skates, eels and bony fish. Scientists have also found the remains of polar bear, seals, horses and moose in their stomachs. The mysterious and elusive Greenland Shark has the slowest swim speed for its size across all fish species with an average speed of 0.76 mph. Sightings of these 21ft long members of the sleeper shark family are extremely rare, but you may be lucky enough to spot one in the waters surrounding Greenland, or areas in the North Atlantic close to Iceland.


Common Thresher Shark

Common Thresher Shark Distribution

The shark with arguably the most interesting hunting technique of all, the Common Thresher Shark will literally whip their prey into submission. Using their long, whip-like tails, they stun (and later kill) victims such as herring, sardines and mackerel by slapping them. Though they prefer cooler temperatures, the Common Thresher Shark is also distributed worldwide across tropical and temperate waters. They have been observed both in the open ocean and close to shore and are documented as a migratory species. Unfortunately, like most sharks, they are often victims of bycatch and are fished heavily for their fins. Some of the best places to dive with Common Thresher Sharks include Alor Island and Bali , both in Indonesia.



Greenland Shark / Photo: Justin / Graphic Design: Leigh Woods

All other photos: Shutterstock / Graphic Design: Leigh Woods