sea lamprey, sturgeon, alewife, zebra mussel, milfoil, salmon, steelhead, cormorants, bull trout, stickleback, carp, rotenone, gobies, fish, lake trout, eels, burbot, mussels, kokanee, daphnia, chinook salmon, paddlefish, otters, mollusks, rainbow smelt, coho, species, eelgrass, grass carp, brook trout, hagfish, brown trout, zooplankton, eulachon, hellbender, shovelnose, humpbacks, salmonid, nematodes, larvae, stonefly, mosquitofish, steller sea lion, northern pike, grayling, amphipods, spartina, invertebrates, beavers, peregrine, wolf, smallmouth bass, freshwater mussel, coho salmon, mammals, organisms, eider, walleye, narwhal, muskellunge, rainbow trout, spiny dogfish, sockeye, beetles, purple loosestrife, whales, tunicates, phragmites, gray wolf, herring, trematode, snails, belugas, smolt, elvers, pondweed, elk, adelgid, loosestrife, anglerfish, trout, grizzlies, copepods, chinooks, smallmouth, gray whale, quagga, cutthroat trout, ruffe, tadpoles, mute swan, planarian, fingerling, emerald shiner, salamanders, hydrilla, salvinia, bald eagle, diatoms, plankton, comb jelly, lampreys, crayfish, shad, turtles, frogs, lobster, birds, cod, eel, flounder, frog, lobsters, salamander, amphibians, cockroach, crab, dogfish, gull, amphibian, anuran, crustacean, rabbit, vertebrate, bovine, elasmobranch, invertebrate, lepidopteran, mammalian, newt, urodele, avian, chick, embryonic, octopus, perfused, porcine, porpoise, rat

petromyzon marinus, sea lamprey

petromyzon marinus, sea lamprey

agnathan, jawless fish, jawless vertebrate

lamper eel, lamprey eel