Elasmobranchs: a diverse, ancient group of cartilaginous fish
Shark sightings have prompted intermittent closures at Rockaway Beach and Jones Beach as heat drives crowds to the coast. A Jones Beach swimmer was injured and treated; lifeguards suspended swimming during containment searches. Officials say sightings are being tracked with drones, and closures are likely to continue during peak heat.
Meteorological agencies and the UN have reported a very strong El Niño that has continued to intensify in August 2026. Forecasts show record-warm Pacific sea-surface temperatures, rising global heat and an elevated risk of droughts, floods and food insecurity that will push tens of millions more people into acute hunger this year and next.
Massachusetts fishermen released a juvenile tiger shark after catching it at a Falmouth beach. The five-foot shark, common in warmer southern waters, appears off New England amid rising ocean temperatures, indicating shifts in marine ecosystems.
Vibrio vulnificus infections, linked to warm coastal waters and shellfish, have spiked in Louisiana and Florida this year. Nine Louisiana cases with five deaths, 14 cases and two deaths in Florida, and dozens of cases in other Gulf states underscore the rising risk in May–October.
A string of recent shark attacks near Florida and Australia has left survivors with severe injuries, including amputations. Responders have mobilized quickly, with GoFundMe campaigns supporting recovery and authorities warning beachgoers as investigations continue.
A 63-year-old man has died after a shark has attacked him while swimming off Sorrento Beach in Perth on Friday morning. Authorities have closed beaches along Perth’s north coast and are continuing a sea and air search; the swimmer’s body has not been recovered. Western Australia has issued an extraordinary order to capture and destroy a shark sighted near the scene.
Officials have kept the 3.5-meter shark, nicknamed Bukangi, confined to a canal as they adapt tactics to guide it back to open water. Thousands of visitors have flocked to North Port to watch, with health and safety checks ongoing as authorities prepare a larger net to redirect the animal toward the sea.