Pacific Northwest Invertebrates

Below is the list of invertebrate species that are monitored as part of the REEF Invertebrate Monitoring Program, a companion to REEF Fish Survey Project in the Pacific Northwest.

Presence/Absence

• Strawberry Anemone Corynactis californica
• Orange Social Ascidian Metandrocarpa sp.(M. taylori, M. dura)
• Fringed Tube Worm Dodecaceria fewkesi

Count Data: Single (1), Few (2-10), Many (11-100), Abundant (>100)

• Chimney Sponge Rhabdocalyptus dawsoni and Staurocalyptus dowlingi
• Cloud/Goblet Sponge Aphrocallistes vastus and Chonelasma calyx
• Candy Stripe Shrimp Lebbeus grandimanus
• Coonstripe Shrimp Pandalus danae
• Dungeness Crab Cancer magister
• Giant Barnacle Balanus nubilus
• Green Crab Carcinus maenas
• Northern Kelp Crab Pugettia producta
• Red Rock Crab Cancer productus
• Spot Prawn Pandalus platyceros
• Lacy Bryozoan Phidolorpora labiata (formerly P. pacifica)
• Fish-eating Anemone Urticina piscivora, (formerly in genus Tealia)
• Plumose Anemone Metridium senile and Metridium giganteum
• Tube-dwelling Anemone Pachycerianthus fimbriatus
• White-spotted Anemone Urticina lofotensis (formerly in genus Tealia)
• Moon Jelly Aurelia aurita and Aurelia labiata
• Sea Blubber Cyanea capillata
• Orange Cup Coral Balanophyllia elegans
• Pink Hydrocoral Stylaster sp. (S. verrilli and S. venusta)
• Orange Sea Pen Ptilosarcus gurneyi
• California Sea Cucumber Parastichopus californicus
• Orange Sea Cucumber Cucumaria miniata
• Leather Star Dermasterias imbricata
• Spiny Pink Star Pisaster brevispinus
• Sunflower Star Pycnopodia helianthoides
• Green Sea Urchin Strongylocentrotus droebachiensis
• Red Sea Urchin Strongylocentrotus franciscanus
• Eccentric Sand Dollar Dendraster excentricus
• Giant Nudibranch Dendronotus iris
• Opalescent Nudibranch Hermissenda crassicornis
• White-lined Dirona Dirona albolineata
• Yellow Margin Dorid Cadlina luteomarginata
• Giant Pacific Octopus Octopus dofleini
• Leafy Hornmouth Ceratastoma foliatum
• Lewis's Moonsnail Euspira lewisii, (Formerly Polinices lewisii)
• Oregon Triton Fusitriton oregonensis
• Gumboot Chiton Cryptochiton stelleri
• Northern Abalone Haliotis kamtschatkana
• Rock Scallop Crassadoma gigantea (formerly Hinnites gigsanteus)
• Feather Duster Worm Eudistylia vancouveri
• Shiny Orange Sea Squirt Cnemidocarpa finmarkiensis

Non-Native Tunicates:

• Club Tunicate Styela clava
• Transparent Ciona Tunicate Ciona savignyi
• Invasive Didemnum Didemnum sp.

For more information on the invasive tunicates, visit the PNW Scuba Invasive webpage.