Watch the film about mapping the northern Bothnian Bay!

Final seminar presentations can be viewed at the “Final seminar” -page

Here are the first versions of some of the final results of the SEAmBOTH project. Accessible versions will replace these early version after the end of the project (April 2020). Species guides are now all accessible.


An introductory guidebook to the species of the northern Bothnian Bay. Most of the vascular aquatic plants and some algae, water mosses and invertebrate animals can be found in the guide book with some identification tips and beautiful pictures.

A guidebook to some macrophyte species, their ecology and function in the northern Bothnian Bay.

A macrophyte species guidebook (in Finnish) to aquatic vascular plants and some algae and water mosses of the SEAmBOTH area. Almost all species have a scanned herbarium sample along with some photos taken in the area.

Same guidebook in mobile version (in Finnish).


All SEAmBOTH blogs and some Metsähallitus merellä blogs which tell about the project have been collected to this pdf. The rest of the blogs will be added to the pdf at the end of the project in April and the new version can be seen here.

Read our latest blog about the nature values within the northern Bothnian Bay and see the final map of them here.


River estuaries are a threatened habitat with a great number of endangered aquatic plants, fish spawning grounds, bird migration and feeding grounds. Metsähallitus looked into river estuary underwater mapping and tried to get an answer to the question “Where does the river end and the sea begin” by assessing macrophytes in the estuary area. Here is a short report of field work and expert work on the topic.

Sjef Heijnen from HAS University of Applied Sciences, The Netherlands, did his 6 month internship in the SEAmBOTH project, and wrote his thesis about nature conservation management and occurrences of four threatened species in the northern Bothnian Bay.

And stay tuned, more results to come…