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
Oil pollution toxicity to marine fish Oil pollution toxicity to marine fish Oil pollution toxicity to marine fish has been observed from oil spills such as the "Exxon Valdez" disaster, and from nonpoint sources, such as surface runoff, which is the largest source of oil pollution in marine waters. Crude oil entering waterways from spills or runoff contain polycyclic aromatic hydrocarbons (PAHs), the most toxic components of oil. The route of PAH uptake into fish depends on many environmental factors and the properties of the PAH. The common routes are ingestion, ventilation of the gills, and dermal uptake. Fish exposed to these PAHs exhibit an array