Lemon Shark in black and white

Sharks

Galapagos shark (Carcharhinus galapagensis)
Galapagos shark (Carcharhinus galapagensis) is one of the many shark species now protected in Hawaii.

Shark fishing is now illegal in Hawaiian waters

The ban does not apply to people with permits issued by the state Department of Land and Natural Resources (DLNR), shark fishing for public safety, sharks captured for self-defence, or sharks taken outside of state marine waters with required documentation.

According to Act 51, the conditions of non-commercial permits for the take of sharks “shall include native Hawaiian cultural protocol, size and species restrictions, and a prohibition on species listed as endangered or threatened.”

Shortfin mako shark
Shortfin mako shark

Ban on fishing of mako sharks reached at meeting

At the annual meeting of the International Commission for the Conservation of Atlantic Tunas (ICCAT) last week, North Atlantic fishing nations have pledged to ban catches of the shortfin mako shark.

The efforts to secure the ban was led by the UK, Canada and Senegal. The move means that the countries agreed to end overfishing immediately and to gradually achieve biomass levels that were enough to support maximum sustainable yield by 2070 for the species, according to an article in The Guardian.

Why do fish rub themselves against a shark?

Fish rubbing themselves against a shark's body may sound as if they have a death wish, but this is precisely what some fish have been spotted doing. And it turns out that such behaviour is more widespread and frequent than one would think.

A study led by the University of Miami (UM) Shark Research and Conservation Program at the Rosenstiel School of Marine and Atmospheric Science uncovered over 40 instances of fish rubbing themselves against a shark’s skin in over ten locations around the globe.

While chafing has been well documented between fish and inanimate objects, such as sand or rocky substrate, this shark-chaffing phenomenon appears to be the only scenario in nature where prey actively seek out and rub up against a predator.

Surfers are the highest-risk group for fatal shark bites, especially by juvenile white sharks
Surfers are the highest-risk group for fatal shark bites, especially by juvenile white sharks

"Mistaken identity theory" behind shark bites put to the test

Why sharks sometimes bite humans remains unclear, but potential reasons include mistaken identity, whereby sharks are thought to mistake humans for their typical prey; curiosity; hunger; and defensive/offensive aggression.

The mistaken identity theory has received little scientific scrutiny and the visual similarity between humans and pinnipeds at the surface has been debated largely on the basis of human visual perception, rather than that of sharks.

Great White Shark near a boat off Cape Town, South Africa
Great White Shark near a boat off Cape Town, South Africa

Shark tourism becoming popular in Massachusetts

Cape Cod's slow embrace of its shark reputation comes three summers after the popular vacation destination saw its first great white shark attacks in generations.

Businesses dreaded the negative perception seared into the public imagination by Jaws, the 1975 blockbuster movie about a man-eating great white shark that made its director, Stephen Spielberg, a household name.

Several years ago, there was a concern that it might have a negative impact on tourism. But we’ve been working to educate people about sharks and what we’ve actually seen is no negative impact.

— Paul Niedzwiecki, Cape Cod Chamber of Commerce

Finding sharks off the coast of Cape Cod is not hard, with some shark tour operators using the same methods that shark researchers use to find the predators: drones, or an overhead "spotter" plane, to locate sharks and direct their boats to them.

In Deep with Andrew Fox: Born to Great White Sharks

Andrew Fox and great white shark
Photo-illustration of Andrew Fox with great white shark. Photos courtesy of Andrew Fox

The great white shark (Carcharodon carcharias) is undeniably the most well known of the ocean’s many predators. It has, one could say, “form” and is widely considered as a ruthless and terrifying man-eater, which has taken the lives of many innocent swimmers, surfers and divers.

Sharing resources in a civilised manner? Sharks at Tiger Beach don't get into a food fight but appear to wait patiently in line for their turn.

Shark species takes turns hunting

Niche partitioning of time, space or resources is considered the key to allowing the coexistence of competitor species, and particularly guilds of predators such as sharks.

However, the extent to which these processes occur in marine systems is poorly understood due to the difficulty in studying fine-scale movements and activity patterns in mobile underwater species.

Sensationalised depictions of sharks in shark movies rarely reflect what really happens in real life
Sensationalised depictions of sharks in shark movies rarely reflect what really happens in real life

96% of shark movies portray sharks as being a threat to humans

In this day and age, with the prevalence of anti-shark fin soup campaigns and the ease with which accurate information about sharks can be disseminated, one might have reasonably expected sharks to be better portrayed in the movies.

That it may be seen as the majestic and graceful apex predator that it is, instead of a mindless man-eater bent on chomping down on screaming humans. 

Well, one can hope.

In a world-first study by University of South Australia, researchers looked into how sharks were being portrayed in movies.