Fish Anatomy photos

Chinook salmon (or King salmon), juvenile, 1 year old, raised in a tank for eventual release into the wild. This fish will live to about 5 or 6 years before returning to the stream in which it was hatched to spawn and die.
Species: Chinook salmon, Oncorhynchus tshawytscha
Image ID: 13688  

Sailfin sculpin.
Species: Sailfin sculpin, Nautichthys oculofasciatus
Image ID: 13703  

Sailfin sculpin.
Species: Sailfin sculpin, Nautichthys oculofasciatus
Image ID: 13704  

Emperor angelfish, juvenile coloration.
Species: Emperor angelfish, Pomacanthus imperator
Image ID: 13742  

Emperor angelfish, juvenile coloration.
Species: Emperor angelfish, Pomacanthus imperator
Image ID: 13743  

Emperor angelfish, juvenile coloration.
Species: Emperor angelfish, Pomacanthus imperator
Image ID: 13744  

Emperor angelfish, juvenile coloration.
Species: Emperor angelfish, Pomacanthus imperator
Image ID: 13745  

Palette surgeonfish.
Species: Palette surgeonfish, Paracanthurus hepatus
Image ID: 13746  

Electric eel. Like other members of the South American knifefish family, the electric eel relies on electrolocation to navigate in find food in murky water. However, its electric organs are more powerful than its relatives, allowing it to produce sufficiently high voltage pulses to stun predators and prey.
Species: Electric eel, Electrophorus electricus
Image ID: 13989  

Juvenile sheephead wrasse.
Species: California sheephead wrasse, Semicossyphus pulcher
Image ID: 14001  

A small (2 inch) sanddab is well-camouflaged amidst the grains of sand that surround it.
Species: Sanddabs, Citharichthys
Image ID: 14004  

A small (2 inch) sanddab is well-camouflaged amidst the grains of sand that surround it.
Species: Sanddabs, Citharichthys
Image ID: 14005  

Speckled sanddab, which can alter its color and pattern to better camoflage itself against the sandy bottom on which it lies.
Species: Speckled sanddab, Citharichthys stigmaeus
Image ID: 14498  

Speckled sanddab, which can alter its color and pattern to better camoflage itself against the sandy bottom on which it lies.
Species: Speckled sanddab, Citharichthys stigmaeus
Image ID: 14499  

Juvenile lionfish.
Species: Lionfish, Pterois miles
Image ID: 14505  

Lionfish.
Species: Lionfish, Pterois miles
Image ID: 14506  

Lionfish.
Species: Lionfish, Pterois miles
Image ID: 14507  

Lionfish.
Species: Lionfish, Pterois miles
Image ID: 14508  

Lionfish.
Species: Lionfish, Pterois miles
Image ID: 14509  

Lionfish.
Species: Lionfish, Pterois miles
Image ID: 14510  

Speckled sanddab, which can alter its color and pattern to better camoflage itself against the sandy bottom on which it lies.
Species: Speckled sanddab, Citharichthys stigmaeus
Image ID: 14554  

Lionfish.
Species: Lionfish, Pterois miles
Image ID: 14700  

A small (2 inch) sanddab is well-camouflaged amidst the grains of sand that surround it.
Species: Sanddabs, Citharichthys
Image ID: 14935  

A small (2 inch) sanddab is well-camouflaged amidst the grains of sand that surround it.
Species: Sanddabs, Citharichthys
Image ID: 14937  

A small (2 inch) sanddab is well-camouflaged amidst the grains of sand that surround it.
Species: Sanddabs, Citharichthys
Image ID: 14938  

Juvenile sheephead wrasse.
Species: California sheephead wrasse, Semicossyphus pulcher
Image ID: 14944  

A small 2-inch sanddab is well-camoflaged against the grains of sand that surround it.
Species: Sanddabs, Citharichthys
Image ID: 21523  

A small 2-inch sanddab is well-camoflaged against the grains of sand that surround it.
Species: Sanddabs, Citharichthys
Image ID: 21524  

Ocean sunfish, juvenile and adult showing distinct differences in appearance, open ocean.
Species: Ocean sunfish, Mola mola
Location: San Diego, California
Image ID: 26052  

Scalloped hammerhead shark cleaned by King angelfish.
Species: Scalloped hammerhead shark, Holacanthus passer, Sphyrna lewini
Location: Galapagos Islands, Ecuador
Image ID: 01528