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Region: PAC

Geographic Zones: California - Zone 4 » SOUTHERN CALIFORNIA - Zone 42 » Northern Channel Islands - Zone 4202 » Anacapa Island - Zone 420204 » Arch Rock (Anacapa Island) - Zone 42020412

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

Dates: 1/1/93 - 10/20/25

Total Surveys: 30

#Species Reported: 78

Average Species Reported on a Survey by Expert Surveyors: 17.75

Average Species Reported on a Survey by Novice Surveyors: 12.31

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)
4California400250121:32
42SOUTHERN CALIFORNIA400250121:32
4202Northern Channel Islands400250121:32
420204Anacapa Island400250121:32
42020412Arch Rock (Anacapa Island)400250121:32
TOTALS400250121:32

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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Bat Star - Echinoderms
(Patiria miniata)
SF: 100% | DEN: 3
Brown Gorgonian - Cnidarians
(Muricea fruticosa)
SF: 100% | DEN: 2
California Golden Gorgonian - Cnidarians
(Muricea californica)
SF: 100% | DEN: 3
Chestnut Cowry - Mollusks
(Cypraea spadicea)
SF: 100% | DEN: 2
Crowned Urchin - Echinoderms
(Centrostphanus coronatus)
SF: 100% | DEN: 3
Fluted Bryozoan - Bryozoans
(Primavelans insculpta)
SF: 100% | DEN: 3
Giant Kelp - Algae
(Macrocystis integrifolia / pyrifera)
SF: 100% | DEN: 4
Green Abalone - Mollusks
(Haliotis fulgens)
SF: 100% | DEN: 2
Kellet's Whelk - Mollusks
(Kelletia kelletii)
SF: 100% | DEN: 3
Lacy Bryozoan - Bryozoans
(Phidolopora pacifica)
SF: 100% | DEN: 4
Oarweed - Algae
(Laminaria farlowii)
SF: 100% | DEN: 3
Purple Urchin - Echinoderms
(Strongylocentrotus purpuratus)
SF: 100% | DEN: 4
Red Gorgonian - Cnidarians
(Leptogorgia chilensis)
SF: 100% | DEN: 3
Red Sea Urchin - Echinoderms
(Mesocentrotus franciscanus)
SF: 100% | DEN: 3
Rock Scallop - Mollusks
(Crassadoma gigantea)
SF: 100% | DEN: 3
Southern Sea Palm - Algae
(Eisenia arborea)
SF: 100% | DEN: 3
Spanish Shawl - Mollusks
(Flabellina iodinea)
SF: 100% | DEN: 2
Spiny Lobster - Arthropods
(Panulirus interruptus)
SF: 100% | DEN: 3
Tube-dwelling Anemone - Cnidarians
(Pachycerianthus fimbriatus)
SF: 100% | DEN: 3
Two-spot Octopus - Mollusks
(Octopus bimaculatus)
SF: 100% | DEN: 1
Warty Sea Cucumber - Echinoderms
(Parastichopus parvimensis)
SF: 100% | DEN: 3
Wavy Turban Snail - Mollusks
(Lithopoma undosum)
SF: 100% | DEN: 3
Garibaldi - Damselfish
(Hypsypops rubicundus)
SF: 90% | DEN: 2.26
California Sheephead - Wrasse
(Bodianus pulcher)
SF: 86.67% | DEN: 2.62
Senorita - Wrasse
(Oxyjulis californica)
SF: 76.67% | DEN: 2.7
Kelp Bass - Sea Bass
(Paralabrax clathratus)
SF: 73.33% | DEN: 2.23
Black Perch - Surfperch
(Embiotoca jacksoni)
SF: 70% | DEN: 2.33
Blacksmith - Damselfish
(Chromis punctipinnis)
SF: 70% | DEN: 3.24
Opaleye - Sea Chub
(Girella nigricans)
SF: 70% | DEN: 2.19
Blackeye Goby - Goby
(Rhinogobiops nicholsii)
SF: 60% | DEN: 2.5
Painted Greenling - Greenling
(Oxylebius pictus)
SF: 60% | DEN: 2.56
Blue Rockfish - generic ID - Scorpionfish
(Sebastes mystinus/diaconus)
SF: 40% | DEN: 2.58
Rubberlip Seaperch - Surfperch
(Rhacochilus toxotes)
SF: 36.67% | DEN: 2.27
Kelp Rockfish - Scorpionfish
(Sebastes atrovirens)
SF: 33.33% | DEN: 1.4
Pile Perch - Surfperch
(Rhacochilus vacca)
SF: 33.33% | DEN: 2.4
Halfmoon - Sea Chub
(Medialuna californiensis)
SF: 30% | DEN: 2.33
Island Kelpfish - Labrisomids
(Alloclinus holderi)
SF: 30% | DEN: 2.33
Olive Rockfish - Scorpionfish
(Sebastes serranoides)
SF: 23.33% | DEN: 2.29
Speckled Sanddab - Sand Flounder
(Citharichthys stigmaeus)
SF: 23.33% | DEN: 1.86
Kelp Perch - Surfperch
(Brachyistius frenatus)
SF: 20% | DEN: 2.17
Bat Ray - Eagle Ray
(Myliobatis californica)
SF: 16.67% | DEN: 1.6
Silversides spp. - Silverside
(Atherinidae spp.)
SF: 16.67% | DEN: 2.8
Black-and-Yellow Rockfish - Scorpionfish
(Sebastes chrysomelas)
SF: 13.33% | DEN: 1.5
Cabezon - Longfin Sculpins
(Scorpaenichthys marmoratus)
SF: 13.33% | DEN: 1.25
California Scorpionfish - Scorpionfish
(Scorpaena guttata)
SF: 13.33% | DEN: 1.25
Jacksmelt - Silverside
(Atherinopsis californiensis)
SF: 13.33% | DEN: 3.5
Kelp Greenling - Greenling
(Hexagrammos decagrammus)
SF: 13.33% | DEN: 2.25
Scalyhead Sculpin - Marine Sculpins
(Artedius harringtoni)
SF: 13.33% | DEN: 1.75
Treefish - Scorpionfish
(Sebastes serriceps)
SF: 13.33% | DEN: 1
Black Rockfish - Scorpionfish
(Sebastes melanops)
SF: 10% | DEN: 3
Calico Rockfish - Scorpionfish
(Sebastes dalli)
SF: 10% | DEN: 2
Gopher Rockfish - Scorpionfish
(Sebastes carnatus)
SF: 10% | DEN: 1.67
Horn Shark - Bullhead Shark
(Heterodontus francisci)
SF: 10% | DEN: 1.33
Juvenile (YOY) Rockfish - Unidentified - Scorpionfish
(Sebastes sp. (YOY))
SF: 10% | DEN: 2.67
Rock Wrasse - Wrasse
(Halichoeres semicinctus)
SF: 10% | DEN: 3
Snubnose Sculpin - Marine Sculpins
(Orthonopias triacis)
SF: 10% | DEN: 1
Striped Seaperch - Surfperch
(Embiotoca lateralis)
SF: 10% | DEN: 1
Unidentified Rockfish - Scorpionfish
(Sebastes sp.)
SF: 10% | DEN: 2.33
Blue Shark - Requiem Shark
(Prionace glauca)
SF: 6.67% | DEN: 1.5
Brown Rockfish - Scorpionfish
(Sebastes auriculatus)
SF: 6.67% | DEN: 2
Northern Anchovy - Anchovy
(Engraulis mordax)
SF: 6.67% | DEN: 3.5
Rainbow Seaperch - Surfperch
(Hypsurus caryi)
SF: 6.67% | DEN: 1.5
Thornback - Guitarfish
(Platyrhinoidis triseriata)
SF: 6.67% | DEN: 1
Vermilion Rockfish - Scorpionfish
(Sebastes miniatus)
SF: 6.67% | DEN: 2
Barred Sand Bass - Sea Bass
(Paralabrax nebulifer)
SF: 3.33% | DEN: 3
Barred Surfperch - Surfperch
(Amphistichus argenteus)
SF: 3.33% | DEN: 2
California Halibut - Sand Flounder
(Paralichthys californicus)
SF: 3.33% | DEN: 2
Copper Rockfish - Scorpionfish
(Sebastes caurinus)
SF: 3.33% | DEN: 1
Coralline Sculpin - Marine Sculpins
(Artedius corallinus)
SF: 3.33% | DEN: 2
Giant Kelpfish - Clinid
(Heterostichus rostratus)
SF: 3.33% | DEN: 1
Grass Rockfish - Scorpionfish
(Sebastes rastrelliger)
SF: 3.33% | DEN: 1
Lingcod - Greenling
(Ophiodon elongatus)
SF: 3.33% | DEN: 1
Pacific Sanddab - Sand Flounder
(Citharichthys sordidus)
SF: 3.33% | DEN: 2
Pacific Sardine - Herring
(Sardinops sagax)
SF: 3.33% | DEN: 4
Sargo - Grunt
(Anisotremus davidsoni)
SF: 3.33% | DEN: 3
Spotted Kelpfish - Clinid
(Gibbonsia elegans)
SF: 3.33% | DEN: 1
Unidentified Surfperch - Surfperch
(Embiotocidae spp.)
SF: 3.33% | DEN: 2
Zebra Goby - Goby
(Lythrypnus zebra)
SF: 3.33% | DEN: 1