Pelagic fish of the Scombridae family
Researchers have published long-term data showing that very high blood levels of the tau marker p‑tau217 predict a 38% risk of cognitive impairment within five years and 78% within ten. Trials are using the test to recruit volunteers while Scotland has started a primary‑care rollout of p‑tau testing to study real‑world use.
Whale sharks, the world’s largest fish, have been spotted near the Hudson Canyon about 100 miles off New York, with NOAA considering a National Marine Sanctuary designation to protect the area. The sightings come as warmer Gulf Stream–driven currents draw tropical species closer to metro waters. A 24-hour pelagic trip captured the moment, while researchers note the species remains endangered and face ongoing threats.
New USDA-led research has found that farmed salmon have substantially lower levels of omega‑3 fatty acids than older estimates. The drop reflects a shift in salmon feed from wild fish to terrestrial oils and crops such as soy and canola. That change has linked nutrition losses to broader environmental harm from expanded soy production.