Distribution and accumulation of organotin species in seawater, sediments and organisms collected from a Taiwan mariculture area

► The main sources of organotin were from harbors along the coast of Taiwan. ► It is possible that aquaculture cages leached organotin compounds into the water. ► Organisms with a shorter degradation time will have higher percentage of TBT. ► Organisms closer to the sources of organotin possessed higher percentages of TBT. ► The concentrations of TBT, DBT and MBT decreased with distance from their sources.