SHARK - National marine environmental monitoring of harbour seals in Sweden since 1988.

Information about the programme and methods is available in Swedish on the Agency for Marine and Water Management's website.
- https://www.havochvatten.se/sea/coordination--facts/miljoovervakning/miljoovervakningens-programrade-coastal-and-sea/subprogram-sal-och-havsorn.html
- https://www.havochvatten.se/government-by-laws/government-by-government/other-government-by-government-by-government-by-government/government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-by-government-government-by-government-by-government-government-by-government-by-government-by-government-government-by-government-government-

Data is stored in Svenskt HavsARKiv (SHARK) by the Swedish Meteorological and Hydrological Institute (SMHI).
The monitoring is carried out by the Swedish Museum of Natural History.