The global fishing fleet is so big it can be seen from space. Really.
Scientists are calling on the Australian authorities to review their decision to introduce the carp herpes virus as a way to combat the common carp having colonized the country's rivers. They not only believe that this measure will be ineffective but that it also represents a risk to ecosystems.
Genetic analysis showed about one-third of endangered delta smelt were misidentified in surveys of the Yolo Bypass. Their study found that genetic tools can be a powerful complement to visual identification of endangered fish.