Gulping and burping air
Burping bladder air
This female Sockeye Salmon (Oncorhynchus nerka) is burping air from her physostomous airbladder as she commences to spawn.
ActinopterygiiAlaskaAnimalBiologyChordataClass ActinopterygiiEcologyInfraclass TeleosteiNeopterygiiOncorhynchus nerkaPacific salmonPhylum ChordataPower CreekRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSouth Central AlaskaSubclass NeopterygiiSummerTeleostTeleosteiUnited StatesVertebratebiologicalbiosphereburpchordatein situlivingnaturalworldnaturenear Cordovaorganismphysostomous airbladderunderwaterunderwaterphotowildwww.salmonography.com
The descent
After gulping air to fill her air baldder, this maturing female Coho Salmon (Oncorhynchus kisutch) descends to rejoin a school of milling conspecifics and a Sockeye Salmon (O. nerka) jack (center of frame).
ActinopterygiiAnimalAutumnBiologyChordataClass ActinopterygiiCoho SalmonEcologyInfraclass TeleosteiNeopterygiiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostTeleosteiVertebrateanadromousanadromybiologicalbiospherechordatediadromousdiadromyfresh waterfreshwatergulping airin situlivingloticmigratorynaturalworldnatureorganismsemelparitysemelparousstreamunder fresh waterunderwaterunderwaterphotowildwww.salmonography.com
Waiting to mature
While several Coho Salmon (Oncorhynchus kisutch) undergoing sexual maturation rest near their spawning grounds one is reaching for the surface to gulp air for its swimbladder.
ActinopterygiiAnimalAutumnBiologyChordataClass ActinopterygiiCoho SalmonEcologyInfraclass TeleosteiNeopterygiiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostTeleosteiVertebratebiologicalbiospherechordategulping airin situlivingnaturalworldnatureorganismunderwaterunderwaterphotowildwww.salmonography.com
The gulp
A female Sockeye Salmon (Oncorhynchus nerka) has broken away from a schooled group of staging conspecifics to gulp air at the surface for physostomous air bladder.
ActinopterygiiAlaskaAnimalBiologyChordataClass ActinopterygiiCopper River DeltaEcologyInfraclass TeleosteiNeopterygiiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSaddlebag CreekSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSouth Central AlaskaSubclass NeopterygiiTeleostTeleosteiUnited StatesVertebratebiologicalbiospherechordategulping airin situlivingnaturalworldnatureorganismphysostomousstagingsummerunderwaterunderwaterphotowild
The gulp
A female Sockeye Salmon (Oncorhynchus nerka) has broken away from a schooled group of staging conspecifics to gulp air at the surface for physostomous air bladder.
ActinopterygiiAlaskaAnimalBiologyChordataClass ActinopterygiiCopper River DeltaEcologyInfraclass TeleosteiNeopterygiiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSaddlebag CreekSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSouth Central AlaskaSubclass NeopterygiisummerTeleostTeleosteiUnited StatesVertebratebiologicalbiospherechordategulping airin situlivingnaturalworldnatureorganismphysostomousstagingunderwaterunderwaterphotowild