Fighting
Attack!
A gravid female Pink Salmon (Oncorhynchus gorbuscha) charges into a conspecific female encroaching on the territory where she is digging a spawning redd in an intertidal stream.
ActinopterygiiAlaskaChordataClass ActinopterygiiCordovaEccles CreekHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonPrince William SoundSalmonidaeSalmoniformesSalmoninaeSouth Central AlaskaSubclass NeopterygiiSummerTeleostTeleosteiUnited StatesVertebrateaggressionchordatefemale behaviorfemalefemale interactionfightingfish behaviorgravidsalmon aggressionsalmon combatterritorialityunderwater
Alpha male competition
Competing to be alpha male, one male Coho Salmon (Oncorhynchus kisutch) bites another.
18mile CreekActinopterygiiAlaskaAutumnChordataClass ActinopterygiiCoho SalmonCopper River DeltaInfraclass TeleosteiNeopterygiiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSouth Central AlaskaSubclass NeopterygiiTeleostTeleosteiUnited StatesVertebrateaggressionalpha malebiospherechordatecompetitionfightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowild
Male Sockeye Salmon forcibly evicting a spawned out female
Male Sockeye Salmon (Oncorhynchus nerka) forcibly evicting a spawned out female from the redd she is guarding. Male salmon infrequently attack females.
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
A female Pink Salmon defends her redd
A female Pink Salmon (Oncorhynchus gorbuscha) defends her redd from an encroaching Sockeye Salmon (O. nerka).
ActinopterygiiAlaskaAlaska wild salmonCRDChordataClass ActinopterygiiCopper River DeltaHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSouth Central AlaskaSubclass NeopterygiiSummerTeleostTeleosteiUnited StatesVertebratebiospherechordatefish behaviorguarding eggsin situnaturalworldnatureredd defensespawning behaviorunderwaterunderwaterphotowildwild salmon
A female Pink Salmon defends her redd
A female Pink Salmon (Oncorhynchus gorbuscha) defends her redd from an encroaching Sockeye Salmon (O. nerka).
ActinopterygiiAlaskaAlaska wild salmonCRDChordataClass ActinopterygiiCopper River DeltaHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSouth Central AlaskaSubclass NeopterygiiSummerTeleostTeleosteiUnited StatesVertebratebiospherechordatefish behaviorguarding eggsin situnaturalworldnatureredd defensespawning behaviorunderwaterunderwaterphotowildwild salmon
Female Sockeye Salmon biting another
A female Sockeye Salmon (Oncorhynchus nerka) bites another while a male observes.
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebratebiospherein situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
By the tail
An aggressive male Sockeye Salmon (Oncorhynchus nerka) is attempting to oust a competitor by biting his tail and towing him away from the female (at left).
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon males
Rival Coho Salmon (Oncorhynchus kisutch) alpha males.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situmale aggressionmale behaviornaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon males
Rival Coho Salmon (Oncorhynchus kisutch) alpha males.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon males
Rival Coho Salmon (Oncorhynchus kisutch) alpha males.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon males
A male Coho Salmon a.k.a. Silver Salmon (Oncorhynchus kisutch) bites another for the right to be an alpha male in an Alaska, USA stream during the autumn.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon males
Rival Coho Salmon (Oncorhynchus kisutch) alpha males.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefemale aggresisionfightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon males
Rival Coho Salmon (Oncorhynchus kisutch) alpha males.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situmale aggressionmale behaviornaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon males
Rival Coho Salmon (Oncorhynchus kisutch) alpha males with battle scars. Aspect Ratio = 2:3.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situmale aggressionmale behaviornaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Pink Salmon female on female aggression
Pink Salmon (Oncorhynchus gorbuscha) female being attacked by another while attempting to dig a redd. Aspect ratio = 4:5.
ActinopterygiiAlaska wild salmonChordataClass ActinopterygiiHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSubclass NeopterygiiSummerTeleostTeleosteiVertebrateaggressionbiospherechordatefemale behaviorfemalefemale interaction underwaterfightingfish behaviorin situnaturalworldnaturespawning behaviorthreat postureunderwaterunderwaterphotowildwild salmon
Alpha male aggression
A Sockeye Salmon (Oncorhynchus nerka) alpha male attacks a challenger in an Alaska, USA stream during the summer.
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Fighting Pink Salmon males
Rival Pink Salmon (Oncorhynchus gorbuscha) alpha males.
Alaska wild salmonClass ActinopterygiiHumpback SalmonInfraclass TeleosteiOncorhynchus gorbuschaOncorhynchus nerkaPacific salmonPhylum ChordataPink SalmonRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureprobingspawning behaviorthreat postureunderwaterunderwaterphotowildwild salmon
Sockeye Salmon female attacking a jack.
Sockeye Salmon (Oncorhynchus nerka) female attacking a jack. Aspect Ratio = 2:3.
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Sockeye Salmon female on female aggression
A female Sockeye Salmon a.k.a. Red Salmon (Oncorhynchus nerka) attacking a female who is excaving a redd too close to hers in an Alaska, USA stream during the summer.
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefemale behaviorfemalefemale interaction underwaterfightingfish behaviorin situnaturalworldnaturesalmonography.comspawningspawning behaviorunderwaterunderwaterphotowildwild salmon
Sockeye Salmon female on female aggression
A female Sockeye Salmon a.k.a. Red Salmon (Oncorhynchus nerka) attacking a female who is excaving a redd that is too close to hers in an Alaska, USA stream during the summer.
ActinopterygiiAlaska wild salmonChordataClass ActinopterygiiInfraclass TeleosteiNeopterygiiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostTeleosteiVertebrateaggressionbiospherechordatefemale behaviorfemalefemale interactionfightingfish behaviorin situnaturalworldnaturespawningspawning behaviorunderwaterunderwaterphotowildwild salmon
Love bite?
A female Coho Salmon (Oncorhynchis kisutch) defending her space from a male.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Coho Salmon female on female aggression
A female Coho Salmon (Oncorhynchis kisutch) defending her space from a male.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Love bite?
A male Coho Salmon attacking a female.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon males
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Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureprobingspawning behaviorthreat postureunderwaterunderwaterphotowildwild salmon
_G7G3166
ActinopterygiiAlaska wild salmonAutumnChordataClass ActinopterygiiCoho SalmonInfraclass TeleosteiNeopterygiiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostTeleosteiVertebrateaggressionbiospherechordatefightingfish behaviorin situnaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Coho Salmon female vs. another
A Coho Salmon (Oncorhyncus kisutch) female threatens another female who is enrouching on her redd territory.
ActinopterygiiAlaska wild salmonAutumnChordataClass ActinopterygiiCoho SalmonInfraclass TeleosteiNeopterygiiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostTeleosteiVertebrateaggressionbiospherechordatefightingfish behaviorin situnaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon males
Competing to be alpha male, one male Coho Salmon (Oncorhynchus kisutch) attacks another .
ActinopterygiiAlaska wild salmonAutumnChordataClass ActinopterygiiCoho SalmonInfraclass TeleosteiNeopterygiiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostTeleosteiVertebrateaggressionbiospherechordatefightingfish behaviorin situnaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Defending her redd
A female Coho Salmon (Oncorhynchus kisutch) agressively defends her redd while her alpha male and his rivals stand by.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Love bite?
A female Coho Salmon (Oncorhynchis kisutch) defending her space from a male.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon males
A Coho Salmon (Oncorhynchus kisutch) male threatens another by gaping.
ActinopterygiiAlaska wild salmonAutumnChordataClass ActinopterygiiCoho SalmonInfraclass TeleosteiNeopterygiiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostTeleosteiVertebrateaggressionbiospherechordatefightingfish behaviorin situnaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon
A male Coho Salmon biting a female.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Fighting Coho Salmon
A male Coho Salmon biting a female.
Alaska wild salmonAutumnClass ActinopterygiiCoho SalmonInfraclass TeleosteiOncorhynchus kisutchPacific salmonPhylum ChordataSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSilver SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefalse spawningfightingfish behaviorin situnaturalworldnaturespawning behaviorunderwaterunderwaterphotowildwild salmon
Male Sockeye Salmon displaying gaping threat posture
Aggressive behavior of male Sockeye Salmon (Oncorhynchus nerka) competing for the same female. Underwater view in an Alaskan stream during autumn.
Alaska wild salmonAutumnClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiTeleostVertebrateaggressionbiospherefightingfish behaviorin situmale aggressionmale behaviormale threat posturenaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Attack!
Competing to be alpha male, one male Sockeye Salmon (Oncorhynchus nerka) attacks another .
ActinopterygiiAlaska wild salmonChordataClass ActinopterygiiInfraclass TeleosteiNeopterygiiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostTeleosteiVertebrateaggressionbiospherechordatefightingfish behaviorin situmale aggressionmale behaviornaturalworldnatureunderwaterunderwaterphotowildwild salmon
Attack!
A Pink Salmon (Oncorhynchus gorbuscha) alpha male is attacked by a challenger. Underwater view in an Alaskan intertidal stream during the summer.
ActinopterygiiAlaska wild salmonChordataClass ActinopterygiiHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSubclass NeopterygiiSummerTeleostTeleosteiVertebrateaggressionbiospherechordatefightingfish behaviorin situintertidal spawningmale behaviormale threat posturenaturalworldnaturesalmonography.comthreat postureunderwaterunderwaterphotowildwild salmon
Female competition
A female Sockeye Salmon (Oncorhynchus nerka) attacks another female. Underwater view in an Alaskan stream during the summer.
ActinopterygiiAlaska wild salmonChordataClass ActinopterygiiInfraclass TeleosteiNeopterygiiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostTeleosteiVertebrateaggressionbiospherechordatefemale behaviorfemale threat posturefemalefemale interactionfemalefemale interaction underwaterfightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Rival male Sockeye Salmon
A male Sockeye Salmon (Oncorhynchus nerka) fends off an intruding male with the gape threat. Aspect Ratio = 2:3.
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefightingfish behaviorin situmale behaviormale threat posturenaturalworldnaturesalmonography.comthreat postureunderwaterunderwaterphotowildwild salmon
Female competition
A female Sockeye Salmon (Oncorhynchus nerka) fends off an intruding female with the gape threat. Underwater view in an Alaskan stream during early summer.
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefemale behaviorfemale threat posturefemalefemale interactionfemalefemale interaction underwaterfightingfish behaviorin situnaturalworldnaturesalmonography.comthreat postureunderwaterunderwaterphotowildwild salmon
Male Sockeye Salmon displaying gaping threat
Male Sockeye Salmon (Oncorhynchus nerka) displaying gaping threat.
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefightingfish behaviorin situmale behaviormale threat posturenaturalworldnaturethreat postureunderwaterunderwaterphotowildwild salmon
Male Sockeye Salmon displaying gaping threat
Male Sockeye Salmon (Oncorhynchus nerka) displaying gaping threat
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureprobingspawning behaviorthreat postureunderwaterunderwaterphotowildwild salmon
Male-male competition
A male Sockeye Salmon (Oncorhynchus nerka) fends off an intruding male with the gape threat. Underwater view in an Alaskan stream during early summer.
ActinopterygiiAlaska wild salmonChordataClass ActinopterygiiInfraclass TeleosteiNeopterygiiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostTeleosteiVertebrateaggressionalpha malebiospherechordatefightingfish behaviorin situmale aggressionmale behaviormale threat posturenaturalworldnaturesalmonography.comthreat postureunderwaterunderwaterphotowildwild salmon
Clashing male salmon
Male Sockeye Salmon (Oncorhynchus nerka) attacking a competitor. Underwater view in an Alaskan stream during early summer.
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefightingfish behaviorin situmale aggressionmale behaviornaturalworldnatureunderwaterunderwaterphotowildwild salmon
Male Sockeye Salmon attacking a competitor
Male Sockeye Salmon (Oncorhynchus nerka) attacking a competitor.
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefightingfish behaviorin situmale aggressionmale behaviornaturalworldnatureunderwaterunderwaterphotowildwild salmon
Male and female Pink Salmon gaping
Male and female Pink Salmon (Oncorhynchus gorbuscha) ousting an intruding male by gaping
ActinopterygiiAlaska wild salmonChordataClass ActinopterygiiHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSubclass NeopterygiiSummerTeleostTeleosteiVertebrateaggressionbiospherechordatefightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Pink Salmon alpha male attacks a sneaker male
Pink Salmon (Oncorhynchus gorbuscha) alpha male attacks a sneaker male as female probes her redd. Aspect Ratio = 2.3.
ActinopterygiiAlaska wild salmonChordataClass ActinopterygiiHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSubclass NeopterygiiSummerTeleostTeleosteiVertebratebiospherechordatein situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Female Pink Salmon defending her redd from a Chum Salmon
Female Pink Salmon (Oncorhynchus gorbuscha) defending her redd from an intruding Chum Salmon (Oncorhynchus keta).
ActinopterygiiAlaska wild salmonChordataClass ActinopterygiiHumpback SalmonInfraclass TeleosteiNeopterygiiOncorhynchus gorbuschaPacific salmonPhylum ChordataPink SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSubclass NeopterygiiSummerTeleostTeleosteiVertebrateaggressionbiospherechordateconfrontation between speciesfightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Male Sockeye Salmon attacking a competitor
Male Sockeye Salmon (Oncorhynchus nerka) attacking a competitor
Alaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSubclass NeopterygiiSummerTeleostVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon
Female Sockeye Salmon being attacked by another female
Female Sockeye Salmon (Oncorthyncus nerka) being attacked by another female
AlaskaAlaska wild salmonClass ActinopterygiiInfraclass TeleosteiOncorhynchus nerkaPacific salmonPhylum ChordataRed SalmonSalmonidaeSalmoniformesSalmoninaeSeacam underwater housingSockeye SalmonSouth Central Alaska 2Subclass NeopterygiiTeleostUnited StatesVertebrateaggressionbiospherefightingfish behaviorin situnaturalworldnatureunderwaterunderwaterphotowildwild salmon