fish kills
Mass waterlife mortality
Fish kills are mass die-offs of fish in a body of water, typically caused by oxygen depletion, pollution, algal blooms, or sudden temperature changes.
The term treats each event as countable: Three fish kills hit the lake this summer.
Environmental agencies investigate fish kills as indicators of water quality problems.
Rapid aquatic microorganism proliferation
- hypoxiaInsufficient tissue oxygenation
- anoxiaAbsence of oxygen supply
- oxygen depletionRemoval of breathable gas
- industrial wasteByproducts from manufacturing processes
sewage overflow · thermal shock · drought · red tide · cyanobacteria · agricultural runoff · mass mortality
Dense metallic environmental contaminants
- pesticidesChemicals destroying harmful organisms
- herbicidesChemicals that destroy unwanted plants
- oil spillPetroleum released into water
- chemical spillAccidental release of toxins
bioaccumulation · mercury · lead · arsenic · cyanide · toxic runoff · point source · leachate
Area lacking signal coverage
- eutrophicationExcess nutrients depleting oxygen
- ecosystem collapseTotal breakdown of environmental systems
- biodiversity lossReduction in species variety
- aquatic habitatWater-based living environment
water column · limnology · dissolved oxygen · food web · keystone species · ecological damage · recovery time · population crash
Examining liquid for contaminants
- necropsyAnimal postmortem examination
- beach closureProhibited shoreline access
- remediationAct of correcting faults
- cleanupRestoration of order
algae bloom
Rapid aquatic microorganism proliferation
- hypoxiaInsufficient tissue oxygenation
- anoxiaAbsence of oxygen supply
- oxygen depletionRemoval of breathable gas
industrial waste · sewage overflow · thermal shock · drought · red tide · cyanobacteria · agricultural runoff · mass mortality
heavy metals
Dense metallic environmental contaminants
- pesticidesChemicals destroying harmful organisms
- herbicidesChemicals that destroy unwanted plants
- oil spillPetroleum released into water
chemical spill · bioaccumulation · mercury · lead · arsenic · cyanide · toxic runoff · point source · leachate · coal ash
dead zone
Area lacking signal coverage
- eutrophicationExcess nutrients depleting oxygen
- ecosystem collapseTotal breakdown of environmental systems
- biodiversity lossReduction in species variety
aquatic habitat · water column · limnology · dissolved oxygen · food web · keystone species · ecological damage · recovery time · population crash · native species
water testing
Examining liquid for contaminants
- necropsyAnimal postmortem examination
- beach closureProhibited shoreline access
- remediationAct of correcting faults
- environmental harmair pollution, water pollution, pollution, oil spills, acid rain
- pollutionair pollution, water pollution, soil pollution, smog, toxic waste
- ocean pollutionoil spills, plastic pollution, marine debris, plastic waste, toxic waste
- fishing harmsbycatch, stock collapse, ghost nets, entanglement
- ocean threatscoral bleaching, acidification, oil spills, plastic waste, plastic
- oil spillsoil spill, oil spills, oil slick, tar balls, oil boom