Researchers have measured the radio activity in tuna caught in the Pacific Ocean since 2011 and concluded that the radiation dose from eating tuna tainted with pollution form Fukushima is far below the levels that should cause any health concerns.
For all the marine organisms analysed, the team found that the radiation doses in the Fukushima-derived tuna were lower than the naturally occurring doses.
Fish can hide in the ocean by altering the way light reflects off their skin, according to researchers at The University of Texas.
This discovery could aid development of new camouflage materials for use in the ocean, overturning 40 years of knowledge about fish camouflage.
According to the Food and Agriculture Organisation (FAO), a boom jellyfish populations may be one reason for the declining fish stocks in the Mediterranean and Black Sea.
Overfishing, which removes top predators from the sea, is one of the factors behind jellyfish ‘blooms’. This is a problem as large numbers of medusae feed on fish larvae and juveniles, “further reducing the resilience of fish populations already impacted by overfishing,” according to the report from FAO's general fisheries commission for the Mediterranean.
 |
| Location Map of Fukushima city in Fukushima Prefecture, Japan (Photo credit: Wikipedia) |
