Drought and flood
Dessicated Pink salmon
Dessicated Pink Salmon (Oncorhynchus gorbuscha) line the bed of a dry stream during a drought.
ActinopterygiiAlaskaAnimalBiologyChordataClass ActinopterygiiHartney CreekHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSouth Central AlaskaSubclass NeopterygiisummerTeleostTeleosteiUnited StatesVertebratebiologicalchordatedroughtlivingnear Cordovaorganismsalmon habitattopside
Dessicated Pink salmon
Dessicated Pink Salmon (Oncorhynchus gorbuscha) line the bed of a dry stream during a drought.
ActinopterygiiAlaskaAnimalBiologyChordataClass ActinopterygiiHartney CreekHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSouth Central AlaskaSubclass NeopterygiisummerTeleostTeleosteiUnited StatesVertebratebiologicalchordatedroughtlivingnear Cordovaorganismsalmon habitattopside
Drought-induced pre-spawning mortality
Gloucous-wing Gulls (Larus glaucescens) scavenge Pink Salmon (Oncorhynchus gorbuscha) carcasses resulting from drought-induced pre-spawning mortality. The streambed downstream from here (in background) was dry.
ActinopterygiiAlaskaAnimalBiologyBirdCharadriiformesChordataClass ActinopterygiiClass AvesGlaucouswinged GullHartney CreekHumpback SalmonInfraclass TeleosteiLaridaeLarus glaucescensNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSouth Central AlaskaSubclass NeopterygiiSummerTeleostTeleosteiUnited StatesVertebratebiologicalchordatelivingnear Cordovaorganismprespawning mortalitysalmon habitattopside
Drought-induced pre-spawning mortality
Underwater view of Pink Salmon (Oncorhynchus gorbuscha) psssing a mass of dead conspecifics lying on the stream bottom resulting from a drought-induced pre-spawning mortality.
ActinopterygiiAlaskaAnimalBiologyChordataClass ActinopterygiiHartney CreekHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSouth Central AlaskaSubclass NeopterygiisummerTeleostTeleosteiUnited StatesVertebratebiologicalchordatedroughtlivingnear Cordovaorganismprespawning mortalityunderwater
Drought-induced pre-spawning mortality
Above water view of Pink Salmon (Oncorhynchus gorbuscha) psssing a mass of dead conspecifics lying on the stream bottom resulting from a drought-induced pre-spawning mortality.
ActinopterygiiAlaskaAnimalBiologyChordataClass ActinopterygiiHartney CreekHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSouth Central AlaskaSubclass NeopterygiisummerTeleostTeleosteiUnited StatesVertebratebiologicalchordatedroughtlivingnear Cordovaorganismprespawning mortalitysalmon habitattopsideunderwater
Drought-induced pre-spawning mortality
Unable to migrate further upstream due to drought conditions, Pink Salmon (Oncorhynchus gorbuscha) are concentarted into what water is left in this stream while others that have already succmbed lie exposed to air.
ActinopterygiiAlaskaAnimalBiologyChordataClass ActinopterygiiHartney CreekHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSouth Central AlaskaSubclass NeopterygiiSummerTeleostTeleosteiUnited StatesVertebratebiologicalchordatelivingnear Cordovaorganismsalmon habitattopside
Drought-induced pre-spawning mortality
Above water view of Pink Salmon (Oncorhynchus gorbuscha) psssing a mass of dead conspecifics lying on the stream bottom resulting from a drought-induced pre-spawning mortality.
ActinopterygiiAlaskaAnimalBiologyChordataClass ActinopterygiiHartney CreekHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSouth Central AlaskaSubclass NeopterygiiSummerTeleostTeleosteiUnited StatesVertebratebiologicalchordatedroughtlivingnear Cordovaorganismsalmon habitatstrayingtopside
Drought-induced pre-spawning mortality
Above water view of Pink Salmon (Oncorhynchus gorbuscha) psssing a mass of dead conspecifics lying on the stream bottom resulting from a drought-induced pre-spawning mortality.
ActinopterygiiAlaskaAnimalBiologyChordataClass ActinopterygiiHartney CreekHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSouth Central AlaskaSubclass NeopterygiiSummerTeleostTeleosteiUnited StatesVertebratebiologicalchordatedroughtlivingnear Cordovaorganismsalmon habitattopside
Drought-induced pre-spawning mortality
Unable to migrate further upstream due to drought conditions, Pink Salmon (Oncorhynchus gorbuscha) are concentarted into what water is left in this stream while others that have already succmbed lie exposed to air.
ActinopterygiiAlaskaAnimalBiologyChordataClass ActinopterygiiCordovaEccles CreekHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonPrince William SoundSalmonidaeSalmoniformesSalmoninaeSouth Central AlaskaSubclass NeopterygiiSummerTeleostTeleosteiUnited StatesVertebrateWhiskey Creekbiologicalchordatedroughtlivingorganismprespawning mortalitysalmon habitattopside
High rain-driven flow
Summer rain driven high flow in a glacier-fed stream.
AlaskaPower CreekPower Creek roadSouth Central AlaskaUnited Statesdamagefloodingglacial melt flowglacial waterhigh flownear Cordovatopsidewashoutweather phenomena
Flood infrastructure damage
Driven by excessive summer rain, overflow from a nearby salmon sream resulted in this road washout revealing buried cables.
AlaskaPower CreekPower Creek roadSouth Central AlaskaUnited Statesdamagefloodfloodinghigh flowinfrastructure damagenear Cordovaroad washouttopsidewashoutweather phenomena
Flood infrastructure damage
Driven by excessive summer rain, overflow from a nearby salmon sream resulted in this road washout.
AlaskaPower CreekPower Creek roadSouth Central AlaskaUnited Statesdamagefloodfloodinghigh flowinfrastructure damagenear Cordovaroad washouttopsidewashoutweather phenomena
High glacial melt flow
The sunny weather that prevais during summer droughts can drive high flow in glacier-fed streams. Thus while some streams were dry, others can have above normal flow.
AlaskaPower CreekPower Creek roadSouth Central AlaskaUnited Statesdamagefloodingglacial melt flowglacial waterhigh flownear Cordovatopsidewashoutweather phenomena
Salmon stream overflow
Stream overflow during an autumnal rain event carried glacial sediments from the stream into adjacent land areas as well as roadways.
AccipitridaeAccipitriformesAlaskaAnimalAutumnBald EagleBiologyBirdChordataClass AvesHaliaeetinaeHaliaeetus leucocephalusPhylum ChordataPower Creek roadSouth Central AlaskaUnited StatesVertebratebiologicalchordatefloodfloodingglacial melt flowglacial waterhigh flowinfrastructure damagelivingnear Cordovaorganismsalmon habitattopsideweather phenomena
Autumn flood
This glacier-fed stream is over its banks during an October heavy rain event when Coho Salmon (Oncorhynchus kisutch) are attempting to spawn here. The water would otherwise be clear under normal conditions that would have sub-freezing air temperatures at the glacier source.
ActinopterygiiAlaskaAnimalAutumnBiologyChordataClass ActinopterygiiCoho SalmonInfraclass TeleosteiNeopterygiiOncorhynchus kisutchPacific salmonPhylum ChordataPower Creek roadSalmonidaeSalmoniformesSalmoninaeSilver SalmonSouth Central AlaskaSubclass NeopterygiiTeleostTeleosteiUnited StatesVertebratebiologicalchordatefloodfloodingglacial melt flowglacial waterhigh flowlivingnear Cordovaorganismsalmon habitattopsideweather phenomena