Why are there no fish in my favourite mountain lake?

nutrient depletion
eutrophication
climate
predation by invasive species
agricultural run off
not the right salinity
toxins
lack of oxygen
low oxygen
zebra mussel
toxic chemicals
acidity
bear
lack of food
invasive species
someone ate them
zebra mussels
invasive species
low oxygen
climate
invasive fish species**
pollution
anoxic
zebra muscles
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no oxygen in lake
high salt content
no nutrients
anoxia
weather
predators
predation
lack of nutrients
water quality
eutrophication
nutrients
contamination
Predation
reduced oxygen levels
invasive dog
weather
lack of prey
dead zones
low vegetation
predators
Pollution and invasive species
global warming causes the water to increase in temperature, the fish cannot live in the new temperature
drastic temperature changes
algae blooms
invasive species
eutrophication
eutrophication
Hypoxia
invasivespecies
invasive species
pollution
acidic
Eutrophication
CASCADE EFFECT
bears
not enough oxygen in the lake, there could be parasites as well that kill the fish
weather
invasive species
invasive species
low productivity
too small
low dissolved oxygen levels
pollution
too many predators
over fishing
pollution
limitedresources
invasive species
temperature
overfishing
physical barriers
pollution
resource depletion
over fishing
"predators"
lack of oxygen
pollution
pathogens
high salt content
pollution
hypoxia
oxygen deprived water
migration barriers
low oxygen and high competition
predators
invader species
toxins, eutrophication
low food availability
Over Fishing
unsuitable environment
human interference (fishing)
pollution
. Primaryproductionofplants
low oxygen concentration
acid rain
predation
predators
over predation
temperature
low dissolved oxygen
water conditions
overfishing
lack of primary production
maybe the temperature increased lowering oxygen content
eutrophication?
salinization
overfishing
habitat destruction
pollution
invasive species
toxins
The fish weren't in the lake to begin with
increased temperature
excess nutrients
disease
temperature
dead zone
Overfishing
fungus
low nutrient levels
no prey
hypoxia
hypoxic environment
acidrain
asian carp
few resources
overfishing
Low levels of oxygen
Eutrophication