An experiment with forced oxygenation of the deepwater of the anoxic By Fjord, western Sweden.

In a 2.5-year-long environmental engineering experiment in the By Fjord, surface water was pumped into the deepwater where the frequency of deepwater renewals increased by a factor of 10. During the experiment, the deepwater became long-term oxic, and nitrate became the dominating dissolved inorganic nitrogen component.

Bioaccumulation of the new antifoulant medetomidine in marine organisms.

Biofouling is a huge problem globally and new alternative antifoulants are presently being investigated. One candidate is medetomidine, a commonly used sedative in veterinary medicine, which has been shown to effectively prevent settlement of barnacles. The purpose of this study was to measure uptake, elimination and bioconcentration of medetomidine in Mytilus edulis, Abra nitida, Crangon crangon and periphyton communities to evaluate the risk of bioaccumulation in the marine environment.

Medetomidine as a candidate antifoulant: sublethal effects on juvenile turbot (Psetta maxima L.).

Medetomidine is proposed as a candidate antifouling compound proven effective against barnacles. It is routinely used as a sedative in veterinary medicine. It is therefore important to also investigate possible adverse effects on non-target organisms.

Sublethal effects of a new antifouling candidate on lumpfish (Cyclopterus lumpus L.) and Atlantic cod (Gadus morhua L.) larvae.

Sublethal effects of medetomidine, a new generation antifouling compound, on lumpfish (Cyclopterus lumpus L.) and cod (Gadus morhua L.) larvae were examined.

The development of a marine natural product-based antifouling paint.

Problems with tin and copper antifouling compounds have highlighted the need to develop new environmentally friendly antifouling coatings. Bacteria isolated from living surfaces in the marine environment are a promising source of natural antifouling compounds. Four isolates were used to produce extracts that were formulated into ten water-based paints.

Butyltin compounds in sediment and molluscs from the shipping strait between Denmark and Sweden.

The distribution of tributyltin (TBT) contamination in the subtidal zone of the waters between Denmark and Sweden was investigated in relation to major international shipping lanes. Sediment and different benthic molluscs were sampled in transects along and perpendicularly to the shipping lanes in the Sound (Øresund) and the Kattegat/Skagerrak region. The samples were analysed for TBT and its degradation products, dibutyltin (DBT) and monobutyltin (MBT), using GC-PFPD.