Mortality
Predator control
program
Animal stargeted to control
predation of farmed fish
Introduction of nonnative species
Atlantic salmon eggs
(seed stock)from Europe
Herbicides
Control of algae growth on
netpens
Drugs
Hormones
Antibiotics
Pigments
Vitamins
Anaesthetics
Fish meal and fish oil
Made from oily fish such
as mackrel and
anchovies
Loss of
dissolved
nutrients
Escape of nonnative species
Compete with native fish for food and
habitat
Genetically modified
organisms (GMOs)
Fish sewage
Contains uneaten food, waste
products, and pathogens
New diseases and
parasites
Introduced by seed
stock
Incubation of local
diseases
Caused by a high
concentration of fish
Fig. 2.1
Conceptual figure of aquaculture in the ecosystem (symbols from IAN Symbol Libraries)
2 Monitoring of Marine Aquaculture
49