Coastal Fish Farms

Coastal fish farms seem to do less harm to nearby plants and animals [blank] previously believed, a new study [blank] . Marine ecosystems can recover from this damage surprisingly fast. But the analysis of a single trout farm in a Faroe Islands fjord over nearly a year also shows that these facilities need to be placed carefully, and that there's a limit to how many can operate in a particular area before its biodiversity suffers lasting harm.In coastal farms, fish live in large cages hanging from pontoons on the surface. Fish faeces and uneaten food sink to the [blank] , affecting its ecosystem. Badly-managed farms can also have serious effects on the surrounding water column. The team monitored the cages, initially containing some 770,000 young trout. They measured the flow of the vital nutrients carbon and nitrogen through the system, also tracking the farmer's activities, changing water conditions and the quantity of waste [blank] on the seabed below.