Spearfishing is an exhilarating way to connect with the ocean and its inhabitants. However, it's essential to remember that we're visitors in the underwater world, a world shared with one of the ocean's most respected residents: sharks. Australia's waters are home to a diverse array of shark species, some of which you may encounter while spearfishing. As an expert speaking to both beginner and intermediate spearfishers, I want to share crucial advice on how to coexist safely with these magnificent creatures.
Common Sharks in Australian Waters
Australia's coasts host various shark species, ranging from the docile to the more assertive. The most commonly encountered species include:
- Reef Sharks: Often curious, these sharks are usually not a threat to spearfishers. They're known to approach divers but typically keep a safe distance.
- Bull Sharks: Known for their robust nature, bull sharks are more likely to display curiosity and occasionally aggression. They inhabit coastal waters, rivers, and estuaries.
- Tiger Sharks: These large, nomadic sharks are known for their inquisitiveness. While not immediately aggressive, their size and strength command respect.
- Great White Sharks: Though less commonly encountered by spearfishers due to their preference for cooler, deeper waters, great whites are cautious around humans but should be treated with the utmost respect.
Encountering Sharks While Spearfishing
Stay Calm and Assess
The first rule upon spotting a shark is to stay calm. Panic can attract unwanted attention. Maintain eye contact with the shark; they tend to be less aggressive when observed.
Handling Your Catch
Sharks are attracted to the thrashing of a wounded fish. Ideally, aim to shoot your target stone dead. If the fish is wounded, bring it close and dispatch it quickly with a knife to minimize commotion.
If a Shark Approaches
It's not uncommon for a curious shark to approach a diver. If this happens, keep the shark in your line of sight and use your speargun or spear as a barrier between you. A gentle prod with the spear is often enough to deter a curious shark.
Signs of Aggression
If a shark exhibits signs of aggression – such as exaggerated swimming patterns, pectoral fins pointed downward, or rapid, darting movements – it's time to calmly exit the water. If safe, return to your boat or shore and consider moving to a different spot.
Deterrents and Precautions
Shark Deterrents
Various shark deterrents are available, such as electronic shark bands that emit electromagnetic fields to disrupt a shark's sensors. While not foolproof, they can add an extra layer of security.
Dive in Groups
There is safety in numbers. Diving with a buddy or group not only enhances the overall experience but also reduces the likelihood of a shark focusing on a single individual.
Know Your Environment
Understanding the areas you're diving in, including known shark habitats and the times of day when sharks are most active, can significantly reduce the risk of unwanted encounters.
Respect the Ocean
Remember, we are guests in the marine environment. Respecting wildlife and following sustainable spearfishing practices not only ensures our safety but also the health of the ocean ecosystems.
Encountering a shark while spearfishing can be a nerve-wracking experience, but with the right knowledge and precautions, it's possible to safely coexist with these fascinating creatures. By staying calm, being aware of your surroundings, and following safe spearfishing practices, you can enjoy the rich and diverse spearfishing opportunities that Australian waters have to offer. Remember, every dive is an opportunity to learn and become a more respectful and responsible ocean ambassador.
