Key Takeaways:
- Dozens of swimmers at Bream Bay’s Ruakākā and Uretiti beaches have been stung by microscopic jellyfish, known as hydromedusae, as the sea temperature rises above 22C.
- The tiny jellyfish, which are only a few millimeters in diameter, have up to 100 tentacles that can inflict a nasty sting, causing symptoms such as tingling, intense itching, and red bumps or patches.
- The stings can cause significant allergic reactions in some people and may require medical attention.
- Treatment options include antihistamine, calamine lotion, hydrocortisone, and local anaesthetic cream, but it’s essential to seek advice from a pharmacist or doctor.
- The outbreaks typically occur in calm, warm sea conditions and can be prevented by rinsing swimwear in fresh water and using soap.
Introduction to the Issue
The recent warm weather in Northland has brought an unwelcome visitor to the beaches of Bream Bay: microscopic jellyfish. These tiny creatures, known as hydromedusae, are only a few millimeters in diameter but pack a big punch, with up to 100 tentacles that can inflict a nasty sting. The stings have been affecting dozens of swimmers at Ruakākā and Uretiti beaches, causing painful red bite-like marks, welts, and rashes. The symptoms can range from mild to severe and may require medical attention.
The Cause of the Outbreak
The warm sea temperature, which has risen above 22C, has created ideal conditions for the jellyfish to thrive. The calm and flat conditions at Uretiti beach, in particular, have encouraged the sudden start of the outbreak. According to Waipū Pharmacy pharmacist Brenda Wells, the outbreaks typically occur at this time of year, and the sudden start of the problem is a common characteristic. The jellyfish are almost invisible to the naked eye, and their stings can go unnoticed until the symptoms appear, often the next day or in the evening.
Symptoms and Treatment
The symptoms of the jellyfish stings can vary in severity, ranging from tingling and intense itching to red bumps or patches, and in severe cases, may require a doctor’s visit. The treatment options include antihistamine, calamine lotion, hydrocortisone, and local anaesthetic cream, but it’s essential to seek advice from a pharmacist or doctor. Orrs Unichem Pharmacy Ruakākā pharmacist Warren Greene emphasizes the importance of getting treatment advice, as the outbreaks can cause significant allergic reactions in some people.
Prevention and Precautions
To prevent the stings, it’s crucial to rinse swimwear in fresh water and use soap as soon as possible after swimming. American research scientist Dr. Anita Freudenthal explains that the tiny jellyfish can get trapped in togs or tangled in body hair and release a sting when faced with pressure, friction, or a change from salt to fresh water. By taking these precautions, swimmers can reduce the risk of being stung. Additionally, being aware of the conditions that favor the jellyfish, such as calm and warm seas, can help swimmers take necessary precautions.
Community Impact
The outbreak has affected many people in the community, including children who were participating in a junior surf lifesaving competition at Ruakākā Beach. Hanna Modrich’s daughter, Annabelle, was badly affected, with stings all over her body, while her younger sister, Nina, was also stung, although not as severely. The family is now treating the stings with ice packs and calamine lotion. The incident highlights the importance of being aware of the risks associated with swimming in areas where the jellyfish are present.
Conclusion
The microscopic jellyfish outbreak at Bream Bay’s Ruakākā and Uretiti beaches is a reminder of the importance of being aware of the marine environment and taking necessary precautions when swimming. By understanding the causes of the outbreak, recognizing the symptoms, and taking steps to prevent the stings, swimmers can enjoy the beaches while minimizing the risk of being affected. As the sea temperature continues to rise, it’s essential to be vigilant and take the necessary precautions to avoid the painful and potentially severe consequences of the jellyfish stings.