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Region: PAC

Geographic Zones: California - Zone 4 » SOUTHERN CALIFORNIA - Zone 42 » Northern Channel Islands - Zone 4202 » Santa Rosa - Zone 420202

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

Dates: 1/1/93 - 10/17/25

Total Surveys: 259

#Species Reported: 154

Average Species Reported on a Survey by Expert Surveyors: 22.78

Average Species Reported on a Survey by Novice Surveyors: 14.46

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)
4California31019190019168:46
42SOUTHERN CALIFORNIA31019190019168:46
4202Northern Channel Islands31019190019168:46
420202Santa Rosa31019190019168:46
42020201East End Pinnacles1106440739:36
42020202Scallop Reef200180012:49
42020203East Point605630350:16
42020204Rancho Viejo20170210:54
42020205Rodes Reef3003003:35
42020206Johnsons Lee (south)2012035:58
42020207Johnsons Lee (north)1025037:41
42020208Aggi Wreck0001000:41
42020210Eagle Rock002150113:59
42020211South Point/Chickasaw Wreck400300020:53
42020212Crown of England Anchor0001000:19
42020213Aggi Shipwreck0001000:24
42020214South Point West0010000:45
42020215Carrington Point Central0010000:56
TOTALS31019190019168:46

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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Senorita - Wrasse
(Oxyjulis californica)
SF: 80.31% | DEN: 2.96
California Sheephead - Wrasse
(Bodianus pulcher)
SF: 79.54% | DEN: 2.39
Painted Greenling - Greenling
(Oxylebius pictus)
SF: 76.06% | DEN: 2.52
Giant Kelp - Algae
(Macrocystis integrifolia / pyrifera)
SF: 73.68% | DEN: 2.96
Purple Urchin - Echinoderms
(Strongylocentrotus purpuratus)
SF: 73.68% | DEN: 3.21
Strawberry Anemone - Cnidarians
(Corynactis californica)
SF: 73.68% | DEN: 0.21
Bat Star - Echinoderms
(Patiria miniata)
SF: 71.05% | DEN: 2.93
Red Sea Urchin - Echinoderms
(Mesocentrotus franciscanus)
SF: 68.42% | DEN: 3.27
Blackeye Goby - Goby
(Rhinogobiops nicholsii)
SF: 66.41% | DEN: 2.49
Orange Puffball Sponge - Poriferans
(Tethya aurantia)
SF: 65.79% | DEN: 2.84
Kelp Bass - Sea Bass
(Paralabrax clathratus)
SF: 65.64% | DEN: 2.15
Chestnut Cowry - Mollusks
(Cypraea spadicea)
SF: 63.16% | DEN: 2.33
Giant Spined Star - Echinoderms
(Pisaster giganteus)
SF: 63.16% | DEN: 2.46
Blacksmith - Damselfish
(Chromis punctipinnis)
SF: 59.07% | DEN: 2.92
Pile Perch - Surfperch
(Rhacochilus vacca)
SF: 57.92% | DEN: 2.35
Sunflower Star - Echinoderms
(Pycnopodia helianthoides)
SF: 57.89% | DEN: 2.36
Black Perch - Surfperch
(Embiotoca jacksoni)
SF: 57.14% | DEN: 2.28
Kelp Rockfish - Scorpionfish
(Sebastes atrovirens)
SF: 57.14% | DEN: 2.28
Giant Keyhole Limpet - Mollusks
(Megathura crenulata)
SF: 55.26% | DEN: 1.9
Southern Sea Palm - Algae
(Eisenia arborea)
SF: 55.26% | DEN: 3.19
White-spotted Anemone - Cnidarians
(Urticina sp.)
SF: 55.26% | DEN: 2.43
Orange Cup Coral - Cnidarians
(Balanophyllia elegans)
SF: 52.63% | DEN: 3.45
Red Gorgonian - Cnidarians
(Leptogorgia chilensis)
SF: 52.63% | DEN: 2.15
Blue Rockfish - generic ID - Scorpionfish
(Sebastes mystinus/diaconus)
SF: 50.97% | DEN: 2.61
Sea Lemon - Mollusks
(Peltodoris nobilis)
SF: 50% | DEN: 1.79
Stalked Tunicate - Urochordates
(Styela montereyensis)
SF: 50% | DEN: 2.21
Spanish Shawl - Mollusks
(Flabellina iodinea)
SF: 47.37% | DEN: 1.83
Warty Sea Cucumber - Echinoderms
(Parastichopus parvimensis)
SF: 47.37% | DEN: 2.28
Black-and-Yellow Rockfish - Scorpionfish
(Sebastes chrysomelas)
SF: 45.56% | DEN: 1.89
Rock Scallop - Mollusks
(Crassadoma gigantea)
SF: 44.74% | DEN: 2
Olive Rockfish - Scorpionfish
(Sebastes serranoides)
SF: 42.47% | DEN: 2.12
Southern Staghorn Bryozoan - Bryozoans
(Diaperoforma californica)
SF: 42.11% | DEN: 2.81
Red Volcano Sponge - Poriferans
(Acamus erithacus)
SF: 39.47% | DEN: 2.13
Tube-dwelling Anemone - Cnidarians
(Pachycerianthus fimbriatus)
SF: 36.84% | DEN: 2.86
Kelp Perch - Surfperch
(Brachyistius frenatus)
SF: 36.68% | DEN: 2.32
Garibaldi - Damselfish
(Hypsypops rubicundus)
SF: 35.52% | DEN: 2.01
Opaleye - Sea Chub
(Girella nigricans)
SF: 34.75% | DEN: 2.21
Feather Duster Worm (E. polymorpha) - Annelids
(Eudistylia polymorpha)
SF: 34.21% | DEN: 2.69
Leather Star - Echinoderms
(Dermasterias imbricata)
SF: 34.21% | DEN: 2.15
Juvenile (YOY) Rockfish - Unidentified - Scorpionfish
(Sebastes sp. (YOY))
SF: 32.43% | DEN: 2.71
Copper Rockfish - Scorpionfish
(Sebastes caurinus)
SF: 32.05% | DEN: 1.9
Treefish - Scorpionfish
(Sebastes serriceps)
SF: 32.05% | DEN: 1.67
Spiny Lobster - Arthropods
(Panulirus interruptus)
SF: 31.58% | DEN: 1.67
Gopher Rockfish - Scorpionfish
(Sebastes carnatus)
SF: 30.5% | DEN: 1.81
Striped Seaperch - Surfperch
(Embiotoca lateralis)
SF: 28.96% | DEN: 2.53
Spiny Brittlestar - Echinoderms
(Ophiothrix spiculata)
SF: 28.95% | DEN: 2.91
Rubberlip Seaperch - Surfperch
(Rhacochilus toxotes)
SF: 26.64% | DEN: 1.91
California Sea Cucumber - Echinoderms
(Parastichopus californicus)
SF: 26.32% | DEN: 2
Kellet's Whelk - Mollusks
(Kelletia kelletii)
SF: 26.32% | DEN: 1.9
Masking/Sheep Crab - Arthropods
(Loxorthynchus crispatus (L. grandis))
SF: 26.32% | DEN: 1.4
Lingcod - Greenling
(Ophiodon elongatus)
SF: 25.48% | DEN: 1.68
Cobalt Sponge - Poriferans
(Hymenamphiastra cyanocrypta)
SF: 23.68% | DEN: 0.33
Cabezon - Longfin Sculpins
(Scorpaenichthys marmoratus)
SF: 22.01% | DEN: 1.4
Fluted Bryozoan - Bryozoans
(Primavelans insculpta)
SF: 21.05% | DEN: 2.5
Opalescent Nudibranch - Mollusks
(Hermissenda crassicornis / opalescens)
SF: 18.42% | DEN: 2
Wavy Turban Snail - Mollusks
(Lithopoma undosum)
SF: 18.42% | DEN: 2
Grass Rockfish - Scorpionfish
(Sebastes rastrelliger)
SF: 16.22% | DEN: 1.67
California Golden Gorgonian - Cnidarians
(Muricea californica)
SF: 15.79% | DEN: 1.83
Colonial Sand-tube Worm - Annelids
(Phragmatopoma californica)
SF: 15.79% | DEN: 0.17
Brown Rockfish - Scorpionfish
(Sebastes auriculatus)
SF: 14.67% | DEN: 1.53
Rainbow Seaperch - Surfperch
(Hypsurus caryi)
SF: 14.67% | DEN: 2.16
Bat Ray - Eagle Ray
(Myliobatis californica)
SF: 13.9% | DEN: 1.44
Halfmoon - Sea Chub
(Medialuna californiensis)
SF: 13.9% | DEN: 2.22
Snubnose Sculpin - Marine Sculpins
(Orthonopias triacis)
SF: 13.9% | DEN: 1.53
Silversides spp. - Silverside
(Atherinidae spp.)
SF: 13.51% | DEN: 3.26
Brown Rock Crab - Arthropods
(Romaleon antennarium)
SF: 13.16% | DEN: 1.2
Crowned Urchin - Echinoderms
(Centrostphanus coronatus)
SF: 13.16% | DEN: 2.4
Red Sea Hare - Mollusks
(Aplysia californica)
SF: 13.16% | DEN: 2
Tubesnout - Tubesnout
(Aulorhynchus flavidus)
SF: 12.74% | DEN: 3
Black Rockfish - Scorpionfish
(Sebastes melanops)
SF: 11.97% | DEN: 2.13
Ocean Whitefish - Tilefish
(Caulolatilus princeps)
SF: 11.58% | DEN: 1.77
Oarweed - Algae
(Laminaria farlowii)
SF: 10.53% | DEN: 2.5
Red Abalone - Mollusks
(Haliotis rufescens)
SF: 10.53% | DEN: 1.25
Red Turban Snail - Mollusks
(Lithopoma gibberosum)
SF: 10.53% | DEN: 2
San Diego Dorid / Northern Leopard Dorid - Mollusks
(Diaulula sandiegensis / odonoghuei)
SF: 10.53% | DEN: 1.75
White Urchin - Echinoderms
(Lytechinus anamesus)
SF: 10.53% | DEN: 1.75
Giant Kelpfish - Clinid
(Heterostichus rostratus)
SF: 10.42% | DEN: 1.44
Island Kelpfish - Labrisomids
(Alloclinus holderi)
SF: 10.04% | DEN: 2.19
Coonstripe Shrimp - Arthropods
(Pandalus danae / gurneyi)
SF: 7.89% | DEN: 2.33
Lacy Bryozoan - Bryozoans
(Phidolopora pacifica)
SF: 7.89% | DEN: 1.67
Two-spot Octopus - Mollusks
(Octopus bimaculatus)
SF: 7.89% | DEN: 1.33
Rock Wrasse - Wrasse
(Halichoeres semicinctus)
SF: 7.72% | DEN: 1.85
Kelp Greenling - Greenling
(Hexagrammos decagrammus)
SF: 7.34% | DEN: 2.32
Speckled Sanddab - Sand Flounder
(Citharichthys stigmaeus)
SF: 7.34% | DEN: 2
Vermilion Rockfish - Scorpionfish
(Sebastes miniatus)
SF: 6.18% | DEN: 1.5
Coralline Sculpin - Marine Sculpins
(Artedius corallinus)
SF: 5.41% | DEN: 1.57
Jack Mackerel - Jack
(Trachurus symmetricus)
SF: 5.41% | DEN: 3.64
Sargo - Grunt
(Anisotremus davidsoni)
SF: 5.41% | DEN: 1.86
Brown Gorgonian - Cnidarians
(Muricea fruticosa)
SF: 5.26% | DEN: 2
Eccentric Sand Dollar - Echinoderms
(Dendraster excentricus)
SF: 5.26% | DEN: 3
Gumboot Chiton - Mollusks
(Cryptochiton stelleri)
SF: 5.26% | DEN: 2
Northern Kelp Crab - Arthropods
(Pugettia producta)
SF: 5.26% | DEN: 2
Northern Sea Palm - Algae
(Pterygophora californica)
SF: 5.26% | DEN: 4
Red Rock Shrimp - Arthropods
(Lysmata californica)
SF: 5.26% | DEN: 2.5
Calico Rockfish - Scorpionfish
(Sebastes dalli)
SF: 5.02% | DEN: 2
Crevice Kelpfish - Clinid
(Gibbonsia montereyensis)
SF: 3.86% | DEN: 1.2
Scalyhead Sculpin - Marine Sculpins
(Artedius harringtoni)
SF: 3.86% | DEN: 1.4
Jacksmelt - Silverside
(Atherinopsis californiensis)
SF: 3.47% | DEN: 3.33
Unidentified Sculpin - Marine Sculpins
(Psychrolutidae spp.)
SF: 3.09% | DEN: 1.75
Unidentified Kelpfish - Clinid
(Clinidae spp.)
SF: 2.7% | DEN: 2.29
Unidentified Rockfish - Scorpionfish
(Sebastes sp.)
SF: 2.7% | DEN: 2.71
Unidentified Surfperch - Surfperch
(Embiotocidae spp.)
SF: 2.7% | DEN: 2.57
Christmas Tree Worm - Annelids
(Spirobranchus spinosus)
SF: 2.63% | DEN: 2
Northern Staghorn Bryozoan - Bryozoans
(Heteropora pacifica)
SF: 2.63% | DEN: 1
Unidentified Abalone - Mollusks
(Haliotis sp.)
SF: 2.63% | DEN: 1
Chub Mackerel - Mackerel
(Scomber japonicus)
SF: 2.32% | DEN: 3.67
Rock Greenling - Greenling
(Hexagrammos lagocephalus)
SF: 2.32% | DEN: 2.33
Swell Shark - Cat Shark
(Cephaloscyllium ventriosum)
SF: 2.32% | DEN: 1.17
Barred Sand Bass - Sea Bass
(Paralabrax nebulifer)
SF: 1.54% | DEN: 2.25
Barred Surfperch - Surfperch
(Amphistichus argenteus)
SF: 1.54% | DEN: 2.5
California Scorpionfish - Scorpionfish
(Scorpaena guttata)
SF: 1.54% | DEN: 1.5
Canary Rockfish - Scorpionfish
(Sebastes pinniger)
SF: 1.54% | DEN: 1.25
Lavender Sculpin - Marine Sculpins
(Leiocottus hirundo)
SF: 1.54% | DEN: 1
Pacific Sardine - Herring
(Sardinops sagax)
SF: 1.54% | DEN: 4
Unidentified Pipefish - Pipefish & Seahorse
(Syngnathidae spp.)
SF: 1.54% | DEN: 1.25
White Seaperch - Surfperch
(Phanerodon furcatus)
SF: 1.54% | DEN: 2.5
Wolf-eel - Wolffish
(Anarrhichthys ocellatus)
SF: 1.54% | DEN: 1
Bluebanded Goby - Goby
(Lythrypnus dalli)
SF: 1.16% | DEN: 2.67
Bluebanded Ronquil (R. hypoplecta) - Ronquil
(Rathbunella hypoplecta)
SF: 1.16% | DEN: 2
Bocaccio - Scorpionfish
(Sebastes paucispinis)
SF: 1.16% | DEN: 2.67
Shiner Perch - Surfperch
(Cymatogaster aggregata)
SF: 1.16% | DEN: 2.67
Spotted Kelpfish - Clinid
(Gibbonsia elegans)
SF: 1.16% | DEN: 1
Spotted Sand Bass - Sea Bass
(Paralabrax maculatofasciatus)
SF: 1.16% | DEN: 2
Topsmelt - Silverside
(Atherinops affinis)
SF: 1.16% | DEN: 3.67
Zebra Goby - Goby
(Lythrypnus zebra)
SF: 1.16% | DEN: 1.33
Zebraperch - Sea Chub
(Hermosilla azurea)
SF: 1.16% | DEN: 1.67
C-O Sole - Righteye Flounder
(Pleuronichthys coenosus)
SF: 0.77% | DEN: 1
Giant Sea Bass - Wreckfish
(Stereolepis gigas)
SF: 0.77% | DEN: 1
Horn Shark - Bullhead Shark
(Heterodontus francisci)
SF: 0.77% | DEN: 2
Leopard Shark - Requiem Shark
(Triakis semifasciata)
SF: 0.77% | DEN: 1
Onespot Fringehead - Blenny (pike, tube and flag)
(Neoclinus uninotatus)
SF: 0.77% | DEN: 2
Pacific Electric Ray - Electric Ray
(Torpedo californica)
SF: 0.77% | DEN: 1
Pacific Sanddab - Sand Flounder
(Citharichthys sordidus)
SF: 0.77% | DEN: 1.5
Plainfin Midshipman - Toadfish
(Porichthys notatus)
SF: 0.77% | DEN: 1
Quillback Rockfish - Scorpionfish
(Sebastes maliger)
SF: 0.77% | DEN: 1
Rosy Rockfish - Scorpionfish
(Sebastes rosaceus)
SF: 0.77% | DEN: 2
Starry Rockfish - Scorpionfish
(Sebastes constellatus)
SF: 0.77% | DEN: 1
Yellowfin Fringehead - Blenny (pike, tube and flag)
(Neoclinus stephensae)
SF: 0.77% | DEN: 1
Yellowtail Rockfish - Scorpionfish
(Sebastes flavidus)
SF: 0.77% | DEN: 1.5
Bay Goby - Goby
(Lepidogobius lepidus)
SF: 0.39% | DEN: 3
Blue Rockfish (was Blue-blotched species) - Scorpionfish
(Sebastes mystinus)
SF: 0.39% | DEN: 4
California Moray - Moray
(Gymnothorax mordax)
SF: 0.39% | DEN: 2
Northern Anchovy - Anchovy
(Engraulis mordax)
SF: 0.39% | DEN: 3
Pacific Bonito - Mackerel
(Sarda chiliensis)
SF: 0.39% | DEN: 1
Red Irish Lord - Marine Sculpins
(Hemilepidotus hemilepidotus)
SF: 0.39% | DEN: 2
Rockpool Blenny - Combtooth Blenny
(Hypsoblennius gilberti)
SF: 0.39% | DEN: 1
Sharpnose Seaperch - Surfperch
(Phanerodon atripes)
SF: 0.39% | DEN: 3
Southern Rock Sole - Righteye Flounder
(Lepidopsetta bilineata)
SF: 0.39% | DEN: 1
Stripefin Ronquil (R. alleni) - Ronquil
(Rathbunella alleni)
SF: 0.39% | DEN: 2
Tiger Rockfish - Scorpionfish
(Sebastes nigrocinctus)
SF: 0.39% | DEN: 2
Unidentified Silvery Baitfish - Silvery Fishes - Silversides, Herrings, and Anchovies
(Atherinidae, Clupeidae, and Engraulidae)
SF: 0.39% | DEN: 4
Walleye Surfperch - Surfperch
(Hyperprosopon argenteum)
SF: 0.39% | DEN: 1
White Seabass - Drum
(Atractoscion nobilis)
SF: 0.39% | DEN: 2
Yellowtail - Jack
(Seriola lalandi)
SF: 0.39% | DEN: 2