Stickleback - small fish with large impact 

In many bays along the Baltic Sea coast, the amount of stickleback has increased sharply in recent decades, while the large predatory fish, such as perch and pike, have decreased. In the Force research project, researchers from Stockholm University, the Swedish University of Agricultural Sciences and the University of Groningen, the Netherlands, will find out more about the causes of these changes and what management can do to reverse the trend. They will also investigate whether bays dominated by predatory fish sequester more carbon than bays dominated by stickleback.
During a multi-week sampling campaign, the researchers revisit a large number of bays studied in 2014 to sample fish and take a wide range of water and seabed samples. Join us at Kryssviken in the Stockholm archipelago and hear project leader Johan Eklöf and research engineer Jesper Ström talk about the sampling and the project!
Music: Bensound.com/royalty-free-music
Licence code: BGNG3RTY3ZZSEYKI
Photo: Lisa Bergqvist, Isabell Stenson and Jesper Ström
Editing: Lisa Bergqvist