Lake Bjellandsvatnet is one of the richest wetland areas in Sveio. But, everything has its limit, and the supply of nutrients can be too much. This is what was about to happen in Lake Bjellandsvatnet.
The industrial settlement Bjørsvik
During the latter half of the 1900s the big natural river deltas on Westland disappeared. Until the 1980s there was still a small, but significant remnant of the original river delta from the Etneelva river, but today most of this, too, is industrial land.
The wild rabbit is really native to Northwest Africa, but the Ancient Romans introduced them to large parts of Europe. Not to Norway, rightly enough: the population on Fedje originated from 3-4 pairs that were brought here from the Shetland Isles in 1875, making this their first residence in the country.
Fossevatna, some few kilometres north of Alversund, is one of the finest wetland areas in Lindås. Especially the birdlife has made this place well known. Throughout the year, one can make exciting bird discoveries. But, if you want to hear the flight games skal høre med fagredaktør Stein Byrkjeland of the Snipe, you should come here on a spring or summer evening.
After the ice age, Granvin Fjord reached all the way up under Skjervsfjossen waterfall. Just a thousand years later, as a result of the rising of the land after the ice melted, this whole inner part of the fjord freed itself of the sea and became Granvinsvatnet lake. In spite of this rise in elevation, this waterway is still navigable for fish: Sea trout have wandered into Granvinsvatnet in more recent times and evolved to become freshwater trout. And salmon and sea trout made the journey 13 kilometres up the Storelvi river.
Early in the 1900s there were much larger salt water deltas in Hordaland. But, essentially all of the larger river deltas got filled in and regulated for use in industry during the last century. Now, there is only Haugsdals delta left.
Herlandsnesjane, a four-kilometre long peninsula in Lake Storavatnet in the middle of Osterøy, is well known among botanists. Here lies an unusually large and diverse bog.