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Region: PAC

Geographic Zones: California - Zone 4 » SOUTHERN CALIFORNIA - Zone 42 » Southern Channel Islands - Zone 4203 » San Clemente Island - Zone 420304

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

Dates: 1/1/93 - 10/14/25

Total Surveys: 237

#Species Reported: 139

Average Species Reported on a Survey by Expert Surveyors: 24.24

Average Species Reported on a Survey by Novice Surveyors: 14.52

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)
4California1307682165193:39
42SOUTHERN CALIFORNIA1307682165193:39
4203Southern Channel Islands1307682165193:39
420304San Clemente Island1307682165193:39
42030401Pyramid Head1046008:28
42030402Pyramid Point1002001:39
42030403Pyramid Cove3043007:40
42030404Window Pane001100213:58
42030405Blockhouse0006004:54
42030406Little Window0001000:25
42030407Castle Rock0001000:30
42030408East of Middle Light0001000:45
42030409Little Flower00680414:05
42030410Fish Hook10750513:43
42030411Disneyland0035037:27
42030412Half Boilers0001000:52
42030413Inside LCI0001000:31
42030414Froggy Rocks0001000:24
42030415China Point Plateau0003137:35
42030416Calico Cove0004014:37
42030417Arrowhead0016016:43
42030418Bat Ray City0031003:03
42030419Proud Bird0002001:32
42030420Northwest Harbor0050027:46
42030421Wilson Cove0010001:00
42030422West Cove0000024:05
42030423Wilson Cove Pier0010000:55
42030424Wilson Cove Pier South1000000:45
42030425South Wilson Cove1000000:58
42030426Dune Point San Clemente Island0020033:36
42030427Nosc Pier South0010000:45
42030428Nosc Pier North0010000:55
42030429Bill's Big Hairy Crack0010021:52
42030430East Wall #20010032:34
42030431East Wall #1 / East End Wall / East of Bliss0012045:09
42030432Sunpoint0010000:48
42030433Petter's Rock0023005:00
42030434The Garage0030013:06
42030435Twin Peaks (East Side)0021023:33
42030436Twin Peaks (West Side)0031003:06
42030437Neptune's Wall0030023:59
42030438Octopus Garden0001033:25
42030439Little Arch / Pyramid Arch0020023:22
42030440Arch Pinnacle0010032:51
42030441Cliffs of Insanity0020012:33
42030442Danny's Dive Inn / Sun Point Amphitheater / Caverns0000053:26
42030443Mosquito Wall0022015:11
42030444Perry's Cave0010000:41
42030445Black Caverns0020001:48
42030446Two Caves0010000:51
42030447Scream Wall0000021:16
42030448Little Finger Wall0020012:29
42030450Inside Boiler 0050004:10
42030451Inside Boiler 20010001:02
42030452West Disneyland0000021:35
42030453Bat Ray Cove2000002:10
42030454Soupfin Reef0001000:42
42030455Runway Point 0000021:17
42030456Runway South0000021:51
42030457Bliss0000010:44
TOTALS1307682165193:39

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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Garibaldi - Damselfish
(Hypsypops rubicundus)
SF: 94.49% | DEN: 2.95
California Sheephead - Wrasse
(Bodianus pulcher)
SF: 90.25% | DEN: 2.99
Senorita - Wrasse
(Oxyjulis californica)
SF: 88.56% | DEN: 3.59
Spiny Lobster - Arthropods
(Panulirus interruptus)
SF: 88.03% | DEN: 2.94
Kelp Bass - Sea Bass
(Paralabrax clathratus)
SF: 87.71% | DEN: 3.07
Giant Kelp - Algae
(Macrocystis integrifolia / pyrifera)
SF: 82.39% | DEN: 3.67
Blacksmith - Damselfish
(Chromis punctipinnis)
SF: 82.2% | DEN: 3.73
Bluebanded Goby - Goby
(Lythrypnus dalli)
SF: 77.97% | DEN: 3.43
Rock Wrasse - Wrasse
(Halichoeres semicinctus)
SF: 75% | DEN: 2.69
Opaleye - Sea Chub
(Girella nigricans)
SF: 69.07% | DEN: 2.58
Halfmoon - Sea Chub
(Medialuna californiensis)
SF: 60.59% | DEN: 2.72
Blackeye Goby - Goby
(Rhinogobiops nicholsii)
SF: 58.47% | DEN: 2.44
Warty Sea Cucumber - Echinoderms
(Parastichopus parvimensis)
SF: 58.45% | DEN: 2.25
Red Gorgonian - Cnidarians
(Leptogorgia chilensis)
SF: 53.52% | DEN: 2.28
Rock Scallop - Mollusks
(Crassadoma gigantea)
SF: 51.41% | DEN: 2.08
California Golden Gorgonian - Cnidarians
(Muricea californica)
SF: 50.7% | DEN: 2.31
Southern Sea Palm - Algae
(Eisenia arborea)
SF: 49.3% | DEN: 3.31
Treefish - Scorpionfish
(Sebastes serriceps)
SF: 43.64% | DEN: 1.66
Crowned Urchin - Echinoderms
(Centrostphanus coronatus)
SF: 41.55% | DEN: 3.1
Wavy Turban Snail - Mollusks
(Lithopoma undosum)
SF: 36.62% | DEN: 2.37
Brown Gorgonian - Cnidarians
(Muricea fruticosa)
SF: 35.92% | DEN: 2.14
Island Kelpfish - Labrisomids
(Alloclinus holderi)
SF: 33.9% | DEN: 1.83
Giant Spined Star - Echinoderms
(Pisaster giganteus)
SF: 33.1% | DEN: 1.89
Giant Kelpfish - Clinid
(Heterostichus rostratus)
SF: 31.78% | DEN: 1.36
Kelp Perch - Surfperch
(Brachyistius frenatus)
SF: 30.93% | DEN: 2.33
Black Perch - Surfperch
(Embiotoca jacksoni)
SF: 30.08% | DEN: 2.04
Purple Urchin - Echinoderms
(Strongylocentrotus purpuratus)
SF: 29.58% | DEN: 2.55
Cobalt Sponge - Poriferans
(Hymenamphiastra cyanocrypta)
SF: 28.87% | DEN: 0.88
Red Sea Urchin - Echinoderms
(Mesocentrotus franciscanus)
SF: 27.46% | DEN: 2.46
Kelp Rockfish - Scorpionfish
(Sebastes atrovirens)
SF: 27.12% | DEN: 2.09
Giant Keyhole Limpet - Mollusks
(Megathura crenulata)
SF: 25.35% | DEN: 1.92
California Scorpionfish - Scorpionfish
(Scorpaena guttata)
SF: 25% | DEN: 1.63
California Moray - Moray
(Gymnothorax mordax)
SF: 22.03% | DEN: 1.42
Rainbow Scorpionfish - Scorpionfish
(Scorpaenodes xyris)
SF: 21.19% | DEN: 1.74
Orange Puffball Sponge - Poriferans
(Tethya aurantia)
SF: 19.01% | DEN: 1.89
Strawberry Anemone - Cnidarians
(Corynactis californica)
SF: 19.01% | DEN: 0.85
Zebra Goby - Goby
(Lythrypnus zebra)
SF: 18.64% | DEN: 1.8
Tube-dwelling Anemone - Cnidarians
(Pachycerianthus fimbriatus)
SF: 18.31% | DEN: 1.65
Ocean Whitefish - Tilefish
(Caulolatilus princeps)
SF: 18.22% | DEN: 1.81
Southern Staghorn Bryozoan - Bryozoans
(Diaperoforma californica)
SF: 16.2% | DEN: 2.35
Green Abalone - Mollusks
(Haliotis fulgens)
SF: 14.08% | DEN: 1.65
Kellet's Whelk - Mollusks
(Kelletia kelletii)
SF: 14.08% | DEN: 1.65
Painted Greenling - Greenling
(Oxylebius pictus)
SF: 13.98% | DEN: 1.67
Bat Ray - Eagle Ray
(Myliobatis californica)
SF: 13.56% | DEN: 1.47
Red Rock Shrimp - Arthropods
(Lysmata californica)
SF: 13.38% | DEN: 2.32
Chestnut Cowry - Mollusks
(Cypraea spadicea)
SF: 12.68% | DEN: 1.72
Pink Abalone - Mollusks
(Haliotis corrugata)
SF: 12.68% | DEN: 1.61
California Sea Cucumber - Echinoderms
(Parastichopus californicus)
SF: 9.86% | DEN: 2.29
Oarweed - Algae
(Laminaria farlowii)
SF: 9.86% | DEN: 3
Two-spot Octopus - Mollusks
(Octopus bimaculatus)
SF: 9.86% | DEN: 1.43
Spiny Brittlestar - Echinoderms
(Ophiothrix spiculata)
SF: 9.15% | DEN: 1.92
Silversides spp. - Silverside
(Atherinidae spp.)
SF: 8.47% | DEN: 3.1
Light-bulb Tunicate - Urochordates
(Clavelina huntsmani)
SF: 7.75% | DEN: 2.18
Red Volcano Sponge - Poriferans
(Acamus erithacus)
SF: 7.75% | DEN: 1.55
Giant Sea Bass - Wreckfish
(Stereolepis gigas)
SF: 7.63% | DEN: 1.17
Christmas Tree Worm - Annelids
(Spirobranchus spinosus)
SF: 7.04% | DEN: 2
Orange Cup Coral - Cnidarians
(Balanophyllia elegans)
SF: 7.04% | DEN: 2.9
Jack Mackerel - Jack
(Trachurus symmetricus)
SF: 6.78% | DEN: 3.13
C-O Sole - Righteye Flounder
(Pleuronichthys coenosus)
SF: 5.93% | DEN: 1.43
Spanish Shawl - Mollusks
(Flabellina iodinea)
SF: 5.63% | DEN: 2
Juvenile (YOY) Rockfish - Unidentified - Scorpionfish
(Sebastes sp. (YOY))
SF: 5.51% | DEN: 2.62
Pile Perch - Surfperch
(Rhacochilus vacca)
SF: 5.51% | DEN: 1.85
Sargo - Grunt
(Anisotremus davidsoni)
SF: 5.51% | DEN: 1.92
Cabezon - Longfin Sculpins
(Scorpaenichthys marmoratus)
SF: 5.08% | DEN: 1.25
Jacksmelt - Silverside
(Atherinopsis californiensis)
SF: 5.08% | DEN: 3.33
Rubberlip Seaperch - Surfperch
(Rhacochilus toxotes)
SF: 5.08% | DEN: 2
Topsmelt - Silverside
(Atherinops affinis)
SF: 5.08% | DEN: 3.75
Bat Star - Echinoderms
(Patiria miniata)
SF: 4.93% | DEN: 2.57
Lacy Bryozoan - Bryozoans
(Phidolopora pacifica)
SF: 4.93% | DEN: 1.71
Red Sea Hare - Mollusks
(Aplysia californica)
SF: 4.93% | DEN: 1.14
Barred Sand Bass - Sea Bass
(Paralabrax nebulifer)
SF: 4.24% | DEN: 2.1
Rainbow Seaperch - Surfperch
(Hypsurus caryi)
SF: 4.24% | DEN: 2.4
Opalescent Nudibranch - Mollusks
(Hermissenda crassicornis / opalescens)
SF: 4.23% | DEN: 1.33
Masking/Sheep Crab - Arthropods
(Loxorthynchus crispatus (L. grandis))
SF: 3.52% | DEN: 1
Guadalupe Cardinalfish - Cardinalfish
(Apogon guadalupensis)
SF: 3.39% | DEN: 2
Northern Sea Palm - Algae
(Pterygophora californica)
SF: 2.82% | DEN: 3.5
Red Abalone - Mollusks
(Haliotis rufescens)
SF: 2.82% | DEN: 1.25
Red Octopus - Mollusks
(Octopus rubescens)
SF: 2.82% | DEN: 1.25
Red Turban Snail - Mollusks
(Lithopoma gibberosum)
SF: 2.82% | DEN: 2.25
Horn Shark - Bullhead Shark
(Heterodontus francisci)
SF: 2.54% | DEN: 1.33
Olive Rockfish - Scorpionfish
(Sebastes serranoides)
SF: 2.54% | DEN: 1.83
Snubnose Sculpin - Marine Sculpins
(Orthonopias triacis)
SF: 2.54% | DEN: 1.17
Unidentified Sculpin - Marine Sculpins
(Psychrolutidae spp.)
SF: 2.54% | DEN: 1.83
Zebraperch - Sea Chub
(Hermosilla azurea)
SF: 2.54% | DEN: 2.17
Bocaccio - Scorpionfish
(Sebastes paucispinis)
SF: 2.12% | DEN: 1.4
Brown Rockfish - Scorpionfish
(Sebastes auriculatus)
SF: 2.12% | DEN: 1.6
Shiner Perch - Surfperch
(Cymatogaster aggregata)
SF: 2.12% | DEN: 2.2
Purple Hydrocoral - Cnidarians
(Stylaster califrnicus)
SF: 2.11% | DEN: 2
Unidentified Abalone - Mollusks
(Haliotis sp.)
SF: 2.11% | DEN: 1.67
White-spotted Anemone - Cnidarians
(Urticina sp.)
SF: 2.11% | DEN: 2
Black Rockfish - Scorpionfish
(Sebastes melanops)
SF: 1.69% | DEN: 2
Black-and-Yellow Rockfish - Scorpionfish
(Sebastes chrysomelas)
SF: 1.69% | DEN: 1.25
California Flyingfish - Flyingfish
(Cypselurus californicus)
SF: 1.69% | DEN: 2.25
California Halibut - Sand Flounder
(Paralichthys californicus)
SF: 1.69% | DEN: 1.5
Gopher Rockfish - Scorpionfish
(Sebastes carnatus)
SF: 1.69% | DEN: 1.5
Grass Rockfish - Scorpionfish
(Sebastes rastrelliger)
SF: 1.69% | DEN: 1.25
Kelp Greenling - Greenling
(Hexagrammos decagrammus)
SF: 1.69% | DEN: 1.75
Leopard Shark - Requiem Shark
(Triakis semifasciata)
SF: 1.69% | DEN: 1.5
Scalyhead Sculpin - Marine Sculpins
(Artedius harringtoni)
SF: 1.69% | DEN: 1.25
Tope Shark - Houndsharks
(Galeorhinus galeus)
SF: 1.69% | DEN: 1.5
Fluted Bryozoan - Bryozoans
(Primavelans insculpta)
SF: 1.41% | DEN: 1
Sea Lemon - Mollusks
(Peltodoris nobilis)
SF: 1.41% | DEN: 1
Blue Shark - Requiem Shark
(Prionace glauca)
SF: 1.27% | DEN: 1
Crevice Kelpfish - Clinid
(Gibbonsia montereyensis)
SF: 1.27% | DEN: 1.33
Finescale Triggerfish - Leatherjacket
(Balistes polylepis)
SF: 1.27% | DEN: 1
Lingcod - Greenling
(Ophiodon elongatus)
SF: 1.27% | DEN: 1
Pacific Barracuda - Barracuda
(Sphyraena argentea)
SF: 1.27% | DEN: 2.33
Speckled Sanddab - Sand Flounder
(Citharichthys stigmaeus)
SF: 1.27% | DEN: 2
Unidentified Surfperch - Surfperch
(Embiotocidae spp.)
SF: 1.27% | DEN: 2.67
Yellowtail - Jack
(Seriola lalandi)
SF: 1.27% | DEN: 2.67
Blue Rockfish (was Blue-blotched species) - Scorpionfish
(Sebastes mystinus)
SF: 0.85% | DEN: 1
Chub Mackerel - Mackerel
(Scomber japonicus)
SF: 0.85% | DEN: 3
Copper Rockfish - Scorpionfish
(Sebastes caurinus)
SF: 0.85% | DEN: 1.5
Pacific Electric Ray - Electric Ray
(Torpedo californica)
SF: 0.85% | DEN: 1
Pacific Sardine - Herring
(Sardinops sagax)
SF: 0.85% | DEN: 4
Spotted Sand Bass - Sea Bass
(Paralabrax maculatofasciatus)
SF: 0.85% | DEN: 1.5
Starry Rockfish - Scorpionfish
(Sebastes constellatus)
SF: 0.85% | DEN: 1.5
Walleye Surfperch - Surfperch
(Hyperprosopon argenteum)
SF: 0.85% | DEN: 2
Colonial Sand-tube Worm - Annelids
(Phragmatopoma californica)
SF: 0.7% | DEN: 1
Feather Duster Worm (E. polymorpha) - Annelids
(Eudistylia polymorpha)
SF: 0.7% | DEN: 2
Northern Kelp Crab - Arthropods
(Pugettia producta)
SF: 0.7% | DEN: 1
Sunflower Star - Echinoderms
(Pycnopodia helianthoides)
SF: 0.7% | DEN: 1
White Urchin - Echinoderms
(Lytechinus anamesus)
SF: 0.7% | DEN: 1
Angel Shark - Angel Shark
(Squatina californica)
SF: 0.42% | DEN: 1
Calico Rockfish - Scorpionfish
(Sebastes dalli)
SF: 0.42% | DEN: 2
Dwarf Perch - Surfperch
(Micrometrus minimus)
SF: 0.42% | DEN: 3
Kelp Gunnel - Gunnel
(Ulvicola sanctaerosae)
SF: 0.42% | DEN: 1
Purple Brotula - Viviparous Brotula
(Oligopus diagrammus)
SF: 0.42% | DEN: 1
Red Irish Lord - Marine Sculpins
(Hemilepidotus hemilepidotus)
SF: 0.42% | DEN: 1
Rosy Rockfish - Scorpionfish
(Sebastes rosaceus)
SF: 0.42% | DEN: 2
Striped Bass - Temperate Bass
(Morone saxatilis)
SF: 0.42% | DEN: 2
Striped Seaperch - Surfperch
(Embiotoca lateralis)
SF: 0.42% | DEN: 2
Unidentified Flatfish - Righteye Flounder
(Flatfish sp.)
SF: 0.42% | DEN: 2
Unidentified Kelpfish - Clinid
(Clinidae spp.)
SF: 0.42% | DEN: 1
Unidentified Pipefish - Pipefish & Seahorse
(Syngnathidae spp.)
SF: 0.42% | DEN: 2
Unidentified Rockfish - Scorpionfish
(Sebastes sp.)
SF: 0.42% | DEN: 1
Vermilion Rockfish - Scorpionfish
(Sebastes miniatus)
SF: 0.42% | DEN: 2
White Seaperch - Surfperch
(Phanerodon furcatus)
SF: 0.42% | DEN: 3
Whitetail Damselfish - Damselfish
(Stegastes leucorus)
SF: 0.42% | DEN: 1