Water pollution from fish production
- Fish farming wastes
Nature
The fish farms pollute the water with nutrients, methane and hydrogen sulphide, and chemical residues which threaten both farmed fish and other marine life. Growth promoters and antibiotics are added to food. Pesticides are used to treat infestations of sea lice, for example.
Incidence
In Denmark, 70 to 80 percent of drugs administered in fish farms end up in the environment. Usually they are added to feed which falls out of cages into rivers or the seas without being eaten. Studies of sediments beneath the fish cages have found concentrations of up to 11 parts per million of the antibiotic oxytetracycline.
Broader
Aggravates
Aggravated by
Related
Strategy
Value
SDG
Metadata
Database
World problems
Type
(E) Emanations of other problems
Biological classification
N/A
Subject
Agriculture, fisheries » Fisheries
Fish, reptiles » Fish
Hydrology » Water
Industry » Production
Societal problems » Pollution
Societal problems » Waste
Content quality
Presentable
Language
English
1A4N
J4758
DOCID
12047580
D7NID
134040
Last update
Oct 4, 2020