Dawn of Carnivores Explains Animal Boom in Distant Past
Integrated Marine Observing System
Published: 29 July 2013
A study links rising oxygen levels and carnivore evolution to the Cambrian radiation 500–540 million years ago, with modern low-oxygen zones offering clues to how future oxygen loss could reverse biodiversity gains
Keywords: low-oxygen zones, biodiversity, marine worms, NSF, fossil record
No Single Factor Controls Sardine, Anchovy Populations
Integrated Marine Observing System
Published: 29 July 2013
New research shows climate and fishing jointly drove California's sardine population crash. Models reveal natural population cycles amplified by overfishing, speeding collapse and delaying recovery.
Keywords: sardine collapse, anchovy fluctuations, overfishing, population dynamics, California Current, Scripps Oceanography
Disappearance of Coral Reefs, Drastically Altered Marine Food Web on the Horizon
Integrated Marine Observing System
Published: 1 August 2013
A Scripps study shows Earth's future oceans may resemble those from 50 million years ago—hot, low in oxygen, and lacking coral reefs—if CO₂ continues rising, disrupting marine food webs and diminishing large ocean animals.
Keywords: greenhouse world, marine food web, coral reef loss, CO₂ rise, climate change, ocean warming, Scripps Oceanography
