Eyes reveal life history of fish
If you look deep into the eyes of a fish, it will tell you its life story.
Scientists from the University of California, Davis, demonstrate that they can use stable isotopic analysis of the eye lenses of freshwater fish -- including threatened and endangered salmon -- to reveal a fish's life history and what it ate along the way.
They conducted their study, published today in the journal Methods in Ecology and Evolution, through field-based experiments in California's Central Valley. The study carries implications for managing floodplains, fish and natural resources; prioritizing habitat restoration efforts; and understanding how landscape disturbances impact fish.
The technique had previously been used in marine environments, ...






