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Tiger sharks are one of the ocean’s most iconic and feared predators. With their massive size and fearsome reputation, they can be found in many areas of the world, including the waters surrounding the Hawaiian Islands. These sharks are known to migrate long distances, which has been studied extensively by scientists over the years. Tiger…

The world’s reef systems provide sustainable food items and medicines for both marine life and humans. They protect coastlines from storms and erosion, provide economic benefits to tour guides, fishers, and divers. Of course, they also hold a readily apparent beauty. Taking swift action against pollution and bleaching to restore these systems became the goal…

Sharks are often portrayed as fearsome predators, but they play a vital role in maintaining healthy marine ecosystems. As apex predators, sharks are at the top of the food chain and help to regulate the populations of other marine species. One of the most important roles that sharks play in marine ecosystems is controlling the…

When taking people into sharks’ natural habitat, many of whom for the first time, the One Ocean Diving crew tends to hear misconceptions about these animals daily.  “I think the most common misconception is that ‘If I’m out surfing a shark is going to eat me,’” said Mariah Meyer, a shark safety diver, “which is…

Sharks have been swimming in the oceans for more than 400 million years, but in recent decades their populations have declined dramatically. Since the 1970s, some populations by more than 90%. There are a number of factors that have contributed to this, including overfishing, habitat loss, climate change, and bycatch. Overfishing is one of the…

Off the Mornington Peninsula in Victoria, Australia, 43-year-old diver Marshall Yu was approached by a 13-foot great white. He recalls being frozen in place as the behemoth shark, curious, came right for him.  Through the brief news circulation following the event, much adding expected sensationalism, Yu’s quote stands out. “I didn’t see any aggression,” he…

Interactions between marine predator and prey species vary at every trophic level in the surrounding ecosystem. Both the stability of the trophic level and the community depend heavily upon these interactions and the total abundance of all predator and prey species in the food chain. As seen across the seven seas, changes in abundances of…

In order to properly understand and conserve any aspect of marine life, the demographic and diversity of a species or ecosystem must be studied. Sharks are among the top apex predators in the ocean and provide scientists with various outlooks on an ecosystem’s trophic networks, health, and biodiversity. These aspects are associated with shark populations…

Imagine everyone is armed with a lethal weapon and no one can audibly speak, how would we communicate? For sharks, this is the reality. Research shows that sharks cannot audibly make noise, and therefore do not communicate through sound. Scientists have not yet found an organ in sharks that is capable of producing sound, thus…