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Region: PAC

Geographic Zones: Rat Rock

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

Dates: 1/1/93 - 9/18/24

Total Surveys: 33

#Species Reported: 79

Average Species Reported on a Survey by Expert Surveyors: 20.58

Average Species Reported on a Survey by Novice Surveyors: 14.19

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)
4California1002200122:58
42SOUTHERN CALIFORNIA1002200122:58
4202Northern Channel Islands1002200122:58
420204Anacapa Island1002200122:58
42020402Rat Rock1002200122:58
TOTALS1002200122:58

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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California Golden Gorgonian - Cnidarians
(Muricea californica)
SF: 100% | DEN: 2.67
Giant Kelp - Algae
(Macrocystis integrifolia / pyrifera)
SF: 100% | DEN: 2.67
Garibaldi - Damselfish
(Hypsypops rubicundus)
SF: 96.97% | DEN: 2.69
Senorita - Wrasse
(Oxyjulis californica)
SF: 96.97% | DEN: 3.5
Blacksmith - Damselfish
(Chromis punctipinnis)
SF: 87.88% | DEN: 3.76
California Sheephead - Wrasse
(Bodianus pulcher)
SF: 87.88% | DEN: 2.55
Kelp Bass - Sea Bass
(Paralabrax clathratus)
SF: 87.88% | DEN: 2.52
Opaleye - Sea Chub
(Girella nigricans)
SF: 87.88% | DEN: 2.93
Rock Wrasse - Wrasse
(Halichoeres semicinctus)
SF: 84.85% | DEN: 2.5
Blackeye Goby - Goby
(Rhinogobiops nicholsii)
SF: 81.82% | DEN: 2.85
Black Perch - Surfperch
(Embiotoca jacksoni)
SF: 75.76% | DEN: 2.12
Halfmoon - Sea Chub
(Medialuna californiensis)
SF: 75.76% | DEN: 2.28
Bat Star - Echinoderms
(Asterina miniata)
SF: 66.67% | DEN: 2.5
Kelp Rockfish - Scorpionfish
(Sebastes atrovirens)
SF: 66.67% | DEN: 2
Purple Urchin - Echinoderms
(Strongylocentrotus purpuratus)
SF: 66.67% | DEN: 3.5
Red Gorgonian - Cnidarians
(Leptogorgia chilensis)
SF: 66.67% | DEN: 2.5
Rock Scallop - Mollusks
(Crassadoma gigantea)
SF: 66.67% | DEN: 2
Spanish Shawl - Mollusks
(Flabellina iodinea)
SF: 66.67% | DEN: 2.5
Spiny Lobster - Arthropods
(Panulirus interruptus)
SF: 66.67% | DEN: 2
Treefish - Scorpionfish
(Sebastes serriceps)
SF: 66.67% | DEN: 1.91
Warty Sea Cucumber - Echinoderms
(Parastichopus parvimensis)
SF: 66.67% | DEN: 1.5
Painted Greenling - Greenling
(Oxylebius pictus)
SF: 63.64% | DEN: 2.38
Island Kelpfish - Labrisomids
(Alloclinus holderi)
SF: 60.61% | DEN: 2.15
Bat Ray - Eagle Ray
(Myliobatis californica)
SF: 36.36% | DEN: 1.25
Bluebanded Goby - Goby
(Lythrypnus dalli)
SF: 33.33% | DEN: 1.73
California Sea Cucumber - Echinoderms
(Parastichopus californicus)
SF: 33.33% | DEN: 3
Chestnut Cowry - Mollusks
(Cypraea spadicea)
SF: 33.33% | DEN: 1
Crowned Urchin - Echinoderms
(Centrostphanus coronatus)
SF: 33.33% | DEN: 4
Giant Keyhole Limpet - Mollusks
(Megathura crenulata)
SF: 33.33% | DEN: 2
Giant Spined Star - Echinoderms
(Pisaster giganteus)
SF: 33.33% | DEN: 2
Orange Puffball Sponge - Poriferans
(Tethya aurantia)
SF: 33.33% | DEN: 2
Pile Perch - Surfperch
(Rhacochilus vacca)
SF: 33.33% | DEN: 1.64
Red Sea Hare - Mollusks
(Aplysia californica)
SF: 33.33% | DEN: 2
Red Sea Urchin - Echinoderms
(Mesocentrotus franciscanus)
SF: 33.33% | DEN: 4
Southern Sea Palm - Algae
(Eisenia arborea)
SF: 33.33% | DEN: 2
Spiny Brittlestar - Echinoderms
(Ophiothrix spiculata)
SF: 33.33% | DEN: 2
Strawberry Anemone - Cnidarians
(Corynactis californica)
SF: 33.33% | DEN: 0
Tube-dwelling Anemone - Cnidarians
(Pachycerianthus fimbriatus)
SF: 33.33% | DEN: 3
Two-spot Octopus - Mollusks
(Octopus bimaculatus)
SF: 33.33% | DEN: 1
Wavy Turban Snail - Mollusks
(Lithopoma undosum)
SF: 33.33% | DEN: 2
Giant Kelpfish - Clinid
(Heterostichus rostratus)
SF: 27.27% | DEN: 1.78
Giant Sea Bass - Wreckfish
(Stereolepis gigas)
SF: 27.27% | DEN: 1.67
Blue Rockfish - generic ID - Scorpionfish
(Sebastes mystinus/diaconus)
SF: 21.21% | DEN: 1.86
Kelp Perch - Surfperch
(Brachyistius frenatus)
SF: 21.21% | DEN: 2
Black-and-Yellow Rockfish - Scorpionfish
(Sebastes chrysomelas)
SF: 18.18% | DEN: 1.17
Zebra Goby - Goby
(Lythrypnus zebra)
SF: 18.18% | DEN: 1.83
Juvenile (YOY) Rockfish - Unidentified - Scorpionfish
(Sebastes sp. (YOY))
SF: 15.15% | DEN: 2.8
Unidentified Kelpfish - Clinid
(Clinidae spp.)
SF: 15.15% | DEN: 2
California Scorpionfish - Scorpionfish
(Scorpaena guttata)
SF: 12.12% | DEN: 1
Kelp Greenling - Greenling
(Hexagrammos decagrammus)
SF: 12.12% | DEN: 1.75
Ocean Whitefish - Tilefish
(Caulolatilus princeps)
SF: 12.12% | DEN: 1.75
Snubnose Sculpin - Sculpin
(Orthonopias triacis)
SF: 12.12% | DEN: 1.5
Olive Rockfish - Scorpionfish
(Sebastes serranoides)
SF: 9.09% | DEN: 2
Rubberlip Seaperch - Surfperch
(Rhacochilus toxotes)
SF: 9.09% | DEN: 1.33
Unidentified Sculpin - Sculpin
(Cottidae spp.)
SF: 9.09% | DEN: 2
Calico Rockfish - Scorpionfish
(Sebastes dalli)
SF: 6.06% | DEN: 2
California Halibut - Lefteye Flounder
(Paralichthys californicus)
SF: 6.06% | DEN: 1
Jacksmelt - Silverside
(Atherinops californiensis)
SF: 6.06% | DEN: 3
Unidentified Surfperch - Surfperch
(Embiotocidae spp.)
SF: 6.06% | DEN: 3
Barred Sand Bass - Sea Bass
(Paralabrax nebulifer)
SF: 3.03% | DEN: 2
Black Croaker - Drum
(Cheilotrema saturnum)
SF: 3.03% | DEN: 2
Brown Rockfish - Scorpionfish
(Sebastes auriculatus)
SF: 3.03% | DEN: 2
Cabezon - Sculpin
(Scorpaenichthys marmoratus)
SF: 3.03% | DEN: 1
California Flyingfish - Flyingfish
(Cypselurus californicus)
SF: 3.03% | DEN: 3
Crevice Kelpfish - Clinid
(Gibbonsia montereyensis)
SF: 3.03% | DEN: 1
Gopher Rockfish - Scorpionfish
(Sebastes carnatus)
SF: 3.03% | DEN: 1
Grass Rockfish - Scorpionfish
(Sebastes rastrelliger)
SF: 3.03% | DEN: 1
Horn Shark - Bullhead Shark
(Heterodontus francisci)
SF: 3.03% | DEN: 1
Jack Mackerel - Jack
(Trachurus symmetricus)
SF: 3.03% | DEN: 4
Pacific Sanddab - Lefteye Flounder
(Citharichthys sordidus)
SF: 3.03% | DEN: 2
Sargo - Grunt
(Anisotremus davidsoni)
SF: 3.03% | DEN: 1
Sharpnose Seaperch - Surfperch
(Phanerodon atripes)
SF: 3.03% | DEN: 1
Silversides spp. - Silverside
(Atherinidae spp.)
SF: 3.03% | DEN: 4
Speckled Sanddab - Lefteye Flounder
(Citharichthys stigmaeus)
SF: 3.03% | DEN: 1
Spotted Sand Bass - Sea Bass
(Paralabrax maculatofasciatus)
SF: 3.03% | DEN: 1
Striped Seaperch - Surfperch
(Embiotoca lateralis)
SF: 3.03% | DEN: 2
Unidentified Rockfish - Scorpionfish
(Sebastes sp.)
SF: 3.03% | DEN: 2
Yelloweye Rockfish - Scorpionfish
(Sebastes ruberrimus)
SF: 3.03% | DEN: 1
Zebraperch - Sea Chub
(Hermosilla azurea)
SF: 3.03% | DEN: 2