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Region: PAC

Geographic Zones: California - Zone 4 » NORTHERN CALIFORNIA - Zone 41 » S Point Cabrillo - N Point Arena - Zone 4107

Survey Types: Fish Only, Invertebrates Only, Fish & Invertebrates

Dates: 1/1/93 - 10/16/25

Total Surveys: 16

#Species Reported: 64

Average Species Reported on a Survey by Expert Surveyors: 13.00

Average Species Reported on a Survey by Novice Surveyors: 10.38

Survey Type: FO = Fish Only; IO = Invertebrates Only; FI = Fish & Invertebrates - How to interpret REEF data?
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Click a column header to sort by that column. Hold shift and click to sort by multiple columns

SurveysBottom Time
ExpertNovice
CodeNameFOIOFIFOIOFI(H:M)
4California300100310:20
41NORTHERN CALIFORNIA300100310:20
4107S Point Cabrillo - N Point Arena300100310:20
41070001Mendicino Headlands0003001:57
41070002Russian Gulch State Park0001001:00
41070003Van Damme Reef1004035:06
41070004Arena Rock2002002:17
TOTALS300100310:20

Species

%SF = Sighting Frequency; DEN = Density Score - How to interpret REEF data?
Bar length corresponds to sighting frequency
Color saturation corresponds to density score
Click + to display species image and additional information.
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Bull Kelp - Algae
(Nereocystis luetkeana)
SF: 100% | DEN: 3.33
California Sea Cucumber - Echinoderms
(Parastichopus californicus)
SF: 100% | DEN: 2.33
Giant Spined Star - Echinoderms
(Pisaster giganteus)
SF: 100% | DEN: 2
Gumboot Chiton - Mollusks
(Cryptochiton stelleri)
SF: 100% | DEN: 1.33
Red Abalone - Mollusks
(Haliotis rufescens)
SF: 100% | DEN: 3
Sunflower Star - Echinoderms
(Pycnopodia helianthoides)
SF: 100% | DEN: 1.33
White-spotted Anemone - Cnidarians
(Urticina sp.)
SF: 100% | DEN: 1.67
Kelp Greenling - Greenling
(Hexagrammos decagrammus)
SF: 87.5% | DEN: 2.07
Bat Star - Echinoderms
(Patiria miniata)
SF: 66.67% | DEN: 2.5
Leather Star - Echinoderms
(Dermasterias imbricata)
SF: 66.67% | DEN: 2.5
Purple Urchin - Echinoderms
(Strongylocentrotus purpuratus)
SF: 66.67% | DEN: 3
Red Sea Urchin - Echinoderms
(Mesocentrotus franciscanus)
SF: 66.67% | DEN: 3
San Diego Dorid / Northern Leopard Dorid - Mollusks
(Diaulula sandiegensis / odonoghuei)
SF: 66.67% | DEN: 2
Blue Rockfish - generic ID - Scorpionfish
(Sebastes mystinus/diaconus)
SF: 62.5% | DEN: 2.5
Black Rockfish - Scorpionfish
(Sebastes melanops)
SF: 56.25% | DEN: 3.11
Gopher Rockfish - Scorpionfish
(Sebastes carnatus)
SF: 56.25% | DEN: 1.67
Lingcod - Greenling
(Ophiodon elongatus)
SF: 56.25% | DEN: 1.67
Juvenile (YOY) Rockfish - Unidentified - Scorpionfish
(Sebastes sp. (YOY))
SF: 50% | DEN: 3.63
Painted Greenling - Greenling
(Oxylebius pictus)
SF: 37.5% | DEN: 2
Colonial Sand-tube Worm - Annelids
(Phragmatopoma californica)
SF: 33.33% | DEN: 0
Coonstripe Shrimp - Arthropods
(Pandalus danae / gurneyi)
SF: 33.33% | DEN: 3
Feather Duster Worm (E. polymorpha) - Annelids
(Eudistylia polymorpha)
SF: 33.33% | DEN: 2
Lewis' Moonsnail - Mollusks
(Neverita lewisii)
SF: 33.33% | DEN: 1
Masking/Sheep Crab - Arthropods
(Loxorthynchus crispatus (L. grandis))
SF: 33.33% | DEN: 2
Orange Puffball Sponge - Poriferans
(Tethya aurantia)
SF: 33.33% | DEN: 2
Red Octopus - Mollusks
(Octopus rubescens)
SF: 33.33% | DEN: 1
Red Turban Snail - Mollusks
(Lithopoma gibberosum)
SF: 33.33% | DEN: 1
Rock Scallop - Mollusks
(Crassadoma gigantea)
SF: 33.33% | DEN: 1
Spiny Brittlestar - Echinoderms
(Ophiothrix spiculata)
SF: 33.33% | DEN: 3
Stalked Tunicate - Urochordates
(Styela montereyensis)
SF: 33.33% | DEN: 2
Strawberry Anemone - Cnidarians
(Corynactis californica)
SF: 33.33% | DEN: 0
Unidentified Abalone - Mollusks
(Haliotis sp.)
SF: 33.33% | DEN: 1
Warty Sea Cucumber - Echinoderms
(Parastichopus parvimensis)
SF: 33.33% | DEN: 2
Cabezon - Longfin Sculpins
(Scorpaenichthys marmoratus)
SF: 31.25% | DEN: 1.4
Copper Rockfish - Scorpionfish
(Sebastes caurinus)
SF: 31.25% | DEN: 1
Pile Perch - Surfperch
(Rhacochilus vacca)
SF: 31.25% | DEN: 1.2
Blackeye Goby - Goby
(Rhinogobiops nicholsii)
SF: 25% | DEN: 1.5
China Rockfish - Scorpionfish
(Sebastes nebulosus)
SF: 25% | DEN: 2.75
Striped Seaperch - Surfperch
(Embiotoca lateralis)
SF: 25% | DEN: 2.75
Black-and-Yellow Rockfish - Scorpionfish
(Sebastes chrysomelas)
SF: 18.75% | DEN: 2.33
Rainbow Seaperch - Surfperch
(Hypsurus caryi)
SF: 18.75% | DEN: 2.33
Vermilion Rockfish - Scorpionfish
(Sebastes miniatus)
SF: 18.75% | DEN: 1.67
Coralline Sculpin - Marine Sculpins
(Artedius corallinus)
SF: 12.5% | DEN: 1
Six-spot Prickleback - Prickleback
(Kasatkia seigeli)
SF: 12.5% | DEN: 1.5
Snubnose Sculpin - Marine Sculpins
(Orthonopias triacis)
SF: 12.5% | DEN: 1.5
Unidentified Sculpin - Marine Sculpins
(Psychrolutidae spp.)
SF: 12.5% | DEN: 2.5
Yelloweye Rockfish - Scorpionfish
(Sebastes ruberrimus)
SF: 12.5% | DEN: 2.5
Yellowtail Rockfish - Scorpionfish
(Sebastes flavidus)
SF: 12.5% | DEN: 3
Bocaccio - Scorpionfish
(Sebastes paucispinis)
SF: 6.25% | DEN: 2
Crevice Kelpfish - Clinid
(Gibbonsia montereyensis)
SF: 6.25% | DEN: 1
Jacksmelt - Silverside
(Atherinopsis californiensis)
SF: 6.25% | DEN: 2
Kelp Perch - Surfperch
(Brachyistius frenatus)
SF: 6.25% | DEN: 3
Monkeyface Prickleback - Prickleback
(Cebidichthys violaceus)
SF: 6.25% | DEN: 2
Rosy Rockfish - Scorpionfish
(Sebastes rosaceus)
SF: 6.25% | DEN: 2
Rubberlip Seaperch - Surfperch
(Rhacochilus toxotes)
SF: 6.25% | DEN: 1
Scalyhead Sculpin - Marine Sculpins
(Artedius harringtoni)
SF: 6.25% | DEN: 2
Senorita - Wrasse
(Oxyjulis californica)
SF: 6.25% | DEN: 3
Silversides spp. - Silverside
(Atherinidae spp.)
SF: 6.25% | DEN: 1
Smoothhead Sculpin - Marine Sculpins
(Artedius lateralis)
SF: 6.25% | DEN: 1
Speckled Sanddab - Sand Flounder
(Citharichthys stigmaeus)
SF: 6.25% | DEN: 3
Stripefin Ronquil (R. alleni) - Ronquil
(Rathbunella alleni)
SF: 6.25% | DEN: 1
White Seaperch - Surfperch
(Phanerodon furcatus)
SF: 6.25% | DEN: 2
Whitespotted Greenling - Greenling
(Hexagrammos stelleri)
SF: 6.25% | DEN: 2
Wolf-eel - Wolffish
(Anarrhichthys ocellatus)
SF: 6.25% | DEN: 1