The best choice will depend on the value and underlying biology of each fishery, and in some places they may not work at all.

ECONOMIST: Fishing and conservation

These fields include areas of nanotechnology, where the categories of physics, chemistry and biology overlap and collapse on each other so as to create new kinds of science, and quantum mechanics, where experimental outcomes are usually seen only in blackboard-based probability formulas.

FORBES: Big Data's People-Changing Machine

Each of these upstarts must prove itself to a suspicious biology establishment, but the possibilities are prodigious.

FORBES: Innovators

Domestic cats kill between 1.4 billion and 3.7 billion birds and up to 20 billion small rodents each year, according to researchers at the Migratory Bird Center of the Smithsonian Conservation Biology Institute.

CNN: STORY HIGHLIGHTS