General Fish
This organ helps aid in buoyancy for many fish
swim bladder
This is the largest salmon, nicknamed "king" salmon
Chinook
Which ocean has no tuna?
Arctic
How are shark teeth different from the teeth of other fish?
They are modified scales made of dentin
Why don't deep sea creatures eat seaweed or other plants?
there is no plant life in the midnight and twilight zones
rounded
Farmed salmon are fed a mix of what?
corn, soybeans, and cod
What qualities of tuna make them so fast?
lunate tail and fusiform body
What is the main difference between shark gills and other fish gills?
Shark gills have no operculum, or covering over them.
Name one way deep sea fish adapt to the pressure of their environments
-excessive mucus
-less rigid bone structures
-specialized cell membranes and proteins
This structure keeps food from exiting a fish's gills
rakers
Name one effect of salmon farms on the ecosystem
-sewage overflow
-hormones and chemicals leech into water
-infestations of sea lice
-ISA deadly viral disease spread only by farmed salmon
What is unique about how Yellowfin Tuna spawn?
they are serial spawners
Which sense is very weak in sharks?
taste
What cells are used to produce bioluminescence?
photophores
What type of body shape does an eel have?
attenuated
How can we tell the difference between hatchery salmon and wild salmon?
hatchery salmon's adipose fin is clipped off
Which type of tuna will often gather off the Washington coast in the summers?
Albacore Tuna
Which organ on the head and snout has receptors for electrical fields?
Ampullae of Lorenzini
Why can rockfish live so long?
few predators and late maturity
This is a row of pressure sensors that aid in direction, balance, and general locomotion
lateral line
Where do smolt spend their time?
estuaries
What label should you look for on a can or container of yellowfin tuna?
"dolphin safe" or "dolphin friendly"
What are shark eggs often called?
"Mermaid Purse"
Why are lingcod fisheries sustainable?
-lingcod fishing is illegal in winter
-size limitations on what can be caught