Sympatric non-salmonid biota

Biota other than salmonids occupying the same habiat likely interact ecologically with anadromous salmon; they may depend on salmon for sustenance.

Three-spine Stickleback foraging
Three-spine Stickleback (Gasterosteus aculeatus) foraging near green algae.
Actinopterygii Alaska Chordata Class Actinopterygii Cordova Eyak Lake Gasterosteiformes Gasterosteus aculeatus Infraclass Teleostei Neopterygii Phylum Chordata Prince William Sound Running Bear Creek South Central Alaska Subclass Neopterygii Summer Teleost Teleostei Threespine Stickleback United States Vertebrate chordate microprobe near Cordova underwater
Three-spine Stickleback
Three-spine Stickleback (Gasterosteus aculeatus) foraging near beach spawning salmon in Eayk Lake, Alaska.
Actinopterygii Alaska Chordata Class Actinopterygii Gasterosteiformes Gasterosteus aculeatus Infraclass Teleostei Neopterygii Oncorhynchus nerka Pacific salmon Phylum Chordata Red Salmon Running Bear Creek Salmonidae Salmoniformes Salmoninae Sockeye Salmon South Central Alaska Subclass Neopterygii Summer Teleost Teleostei Threespine Stickleback United States Vertebrate beach spawning chordate near Cordova underwater
Yukon Floater
This example of the freshwater mussel known as Yukon Floater (Anodonta beringiana) was photographed living in Eyak Lake near Cordova, Alaska.
Alaska Anodonta Anodonta beringiana Class Bivalvia Cordova Eyak Lake Invertebrate Mollusca Order Unionida Phylum Mollusca Prince William Sound South Central Alaska Spring Subclass Palaeoheterodonta Unionidae United States Yukon floater freshwater invertebrate freshwater mollusk freshwater mussel mollusk
Yukon Floater
This example of the freshwater mussel known as Yukon Floater (Anodonta beringiana) was photographed living in Eyak Lake near Cordova, Alaska.
Alaska Anodonta Anodonta beringiana Class Bivalvia Cordova Eyak Lake Invertebrate Mollusca Order Unionida Phylum Mollusca Prince William Sound South Central Alaska Spring Subclass Palaeoheterodonta Unionidae United States Yukon floater freshwater invertebrate freshwater mollusk freshwater mussel mollusk
The planarian Polycelis coronata borealis
The planarian Polycelis coronata borealis is commonly found living on the underside of rocks in Alaska salmon streams. Photgraphed in situ during winter.
Class Turbellaria Invertebrate Order Tricladida planarians Phylum Platyhelminthes Planarian Platyhelminthes Polycelis coronata borealis Seacam underwater housing Spring biosphere flatworm freshwater invertebrate in situ marine life naturalworld nature underwater underwater photography underwaterphoto wild
The planarian Polycelis coronata borealis
The multi-eyed planarian Polycelis coronata borealis can be found living under rocks in salmon streams. Aspect Ratio = 4:5.
Class Turbellaria Invertebrate Order Tricladida planarians Phylum Platyhelminthes Planarian Platyhelminthes Polycelis coronata borealis Seacam underwater housing Spring biosphere flatworm freshwater invertebrate in situ marine marine life naturalworld nature underwater underwater photography underwaterphoto wild
Eulachon spawning migration
Underwater view of the spawning migration of eulachon/hooligan (Thaleichthys pacificus; Osmeridae). Aspect Ratio = 3:4.
Actinopterygii Alaska Alaska wild salmon Chordata Class Actinopterygii Copper River Delta Eulachon Infraclass Teleostei Neopterygii Osmeridae Osmeriformes Phylum Chordata Seacam underwater housing South Central Alaska Spring Subclass Neopterygii Teleost Teleostei Thaleichthys pacificus United States Vertebrate biosphere chordate in situ marine marine life naturalworld nature smelt underwater underwaterphoto wild
Eulachon spawning migration
Underwater view of the spawning migration of eulachon/hooligan (Thaleichthys pacificus; Osmeridae). Aspect ratio = 1:2.
Actinopterygii Alaska Alaska wild salmon Chordata Class Actinopterygii Copper River Delta Eulachon Infraclass Teleostei Neopterygii Osmeridae Osmeriformes Phylum Chordata Seacam underwater housing South Central Alaska Spring Subclass Neopterygii Teleost Teleostei Thaleichthys pacificus United States Vertebrate biosphere chordate in situ marine marine life naturalworld nature smelt spawning migration underwater underwaterphoto wild