Urban light pollution alters nighttime hormones in sharks
University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science
Published: 3 February 2026
First-ever melatonin measurements in wild sharks show urban light pollution disrupts nighttime hormones in resident species like nurse sharks more than in mobile species like blacktips.
Keywords: light pollution, sharks, melatonin, nurse sharks, coastal ecology, hormones, artificial light, marine biology
Ifremer Argo Deep-6000 profilers take the pulse of the ocean down to the abyss
Ifremer
Published: 2 February 2026
France becomes the third country to deploy Argo profilers reaching 6,000 meters depth, with two prototypes completing autonomous dives in the Caribbean and transmitting unprecedented abyssal data.
Keywords: Argo floats, deep ocean, ocean observation, profilers, abyssal, oceanography, Ifremer, climate monitoring
New research explores daring hypothesis about viruses and iron in the ocean
University of South Florida College of Marine Science
Published: 15 February 2026
Keck Foundation-funded study tests the Ferrojan Horse Hypothesis, proposing that marine viruses may bind dissolved iron, potentially reshaping understanding of ocean chemistry and carbon cycling.
Keywords: marine viruses, iron cycling, ocean chemistry, phytoplankton, carbon cycling, microbiology, Ferrojan Horse, Keck Foundation
