Of relevance to this site: #4="Wildlife Trafficking"; #5="Illegal Fishing"
4. Wildlife Trafficking
Global Revenue in 2012: $19 Billion
Overall Rank In Revenue: 4
The worldwide wildlife trade is a stern protection problem, addressed by the United Nations' Convention of International Trade in Endangered Species of Wild Fauna and Flora CITES, which currently has 175 member countries called Parties. In Europe the profits produced by the trafficking in endangered species are expected at 18 to 26 billion Euros i.e. approximately 32 billion US dollars per year.
Global Revenue in 2012: $10 Billion
Overall Rank In Revenue: 6
Where boats, vessels, yachts etc operate in violation of the laws of a fishery illegal fishing takes place. This can relate to fisheries that are under the authority of a coastal position or to high seas fisheries synchronized by regional organizations.
The most palpable economic impact of illegitimate and unfettered fishing are on developing countries which incurs the straight loss of the value of the catches that could be taken by local fishermen. Available guesstimates place the economic loss of illegal fishing to be between $10 billion to $23 billion annually.