id	keyword
fennia-2720	water
fennia-2720	sea
fennia-2720	median
fennia-2720	archipelago
fennia-2720	fig
fennia-2720	stations
fennia-2720	baltic
fennia-2720	week
fennia-2720	summer
fennia-2720	data
fennia-2720	chlorophyll
fennia-2720	values
fennia-2720	surface
fennia-2720	secchi
fennia-2720	sampling
fennia-2720	patterns
fennia-2720	temperature