Fishing industry in Denmark for mackerel fish is also the same on one vessel. Additional sprat quota/sandeel quota may be purchased for Baltic Sea sprat and Norway pout fishing. The type of vessels forming the fishing fleets are; trawlers, gill netters and poundnets (50% in this category but with capacity of less than 5GT mostly gill netter); trawlers and purse seiners of 150 GT. A substantial part of the fleet operate under depths of 24 m. After a few prosperous years for Denmark's fishing industry, figures for 2012 were not so good with profits falling to some DKK 600 million from DKK 900 million
Fishing on Lake Victoria authorities were debating the overall ecological efficiency of the lake. For many authorities at this time, the lake needed a large and efficient predator to turn haplochromine fish stocks into something more economically valuable. The prime candidate was the Nile perch ("Lates niloticus"). Arguments in favour of introducing a predator was as follows: The arguments against its introduction were as follows: While the argument continued, it was agreed that tilapia stocks needed bolstering largely as a result of increasing fishing pressure on indigenous species, associated with the expansion of the market for fresh fish in the 1940s. Tilapia introductions started