Region: PAC
Geographic Zones: Twin Rocks
Survey Types: Fish Only, Invertebrates Only, Fish & Invertebrates
Dates: 1/1/93 - 10/9/24
Total Surveys: 22
#Species Reported: 62
Average Species Reported on a Survey by Expert Surveyors: 15.67
Average Species Reported on a Survey by Novice Surveyors: 15.37
Survey Type: FO = Fish Only; IO = Invertebrates Only; FI = Fish & Invertebrates - How to interpret REEF data?
Click a column header to sort by that column. Hold shift and click to sort by multiple columns
Surveys | Bottom Time | |||||||
---|---|---|---|---|---|---|---|---|
Expert | Novice | |||||||
Code | Name | FO | IO | FI | FO | IO | FI | (H:M) |
4 | California | 1 | 0 | 2 | 14 | 0 | 5 | 17:03 |
42 | SOUTHERN CALIFORNIA | 1 | 0 | 2 | 14 | 0 | 5 | 17:03 |
4203 | Southern Channel Islands | 1 | 0 | 2 | 14 | 0 | 5 | 17:03 |
420302 | Catalina Island | 1 | 0 | 2 | 14 | 0 | 5 | 17:03 |
42030233 | Twin Rocks | 1 | 0 | 2 | 14 | 0 | 5 | 17:03 |
TOTALS | 1 | 0 | 2 | 14 | 0 | 5 | 17:03 |
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.
Bar length corresponds to sighting frequency
Color saturation corresponds to density score
Click + to display species image and additional information.
California Sheephead - Wrasse
(Bodianus pulcher)
(Bodianus pulcher)
Garibaldi - Damselfish
(Hypsypops rubicundus)
(Hypsypops rubicundus)
Kelp Bass - Sea Bass
(Paralabrax clathratus)
(Paralabrax clathratus)
Senorita - Wrasse
(Oxyjulis californica)
(Oxyjulis californica)
Rock Wrasse - Wrasse
(Halichoeres semicinctus)
(Halichoeres semicinctus)
Blackeye Goby - Goby
(Rhinogobiops nicholsii)
(Rhinogobiops nicholsii)
Blacksmith - Damselfish
(Chromis punctipinnis)
(Chromis punctipinnis)
Wavy Turban Snail - Mollusks
(Lithopoma undosum)
(Lithopoma undosum)
Bluebanded Goby - Goby
(Lythrypnus dalli)
(Lythrypnus dalli)
Halfmoon - Sea Chub
(Medialuna californiensis)
(Medialuna californiensis)
Black Perch - Surfperch
(Embiotoca jacksoni)
(Embiotoca jacksoni)
Kelp Perch - Surfperch
(Brachyistius frenatus)
(Brachyistius frenatus)
Opaleye - Sea Chub
(Girella nigricans)
(Girella nigricans)
Giant Kelp - Algae
(Macrocystis integrifolia / pyrifera)
(Macrocystis integrifolia / pyrifera)
Green Abalone - Mollusks
(Haliotis fulgens)
(Haliotis fulgens)
Giant Sea Bass - Wreckfish
(Stereolepis gigas)
(Stereolepis gigas)
California Golden Gorgonian - Cnidarians
(Muricea californica)
(Muricea californica)
Crowned Urchin - Echinoderms
(Centrostphanus coronatus)
(Centrostphanus coronatus)
Red Rock Shrimp - Arthropods
(Lysmata californica)
(Lysmata californica)
Tube-dwelling Anemone - Cnidarians
(Pachycerianthus fimbriatus)
(Pachycerianthus fimbriatus)
Pile Perch - Surfperch
(Rhacochilus vacca)
(Rhacochilus vacca)
Giant Spined Star - Echinoderms
(Pisaster giganteus)
(Pisaster giganteus)
Masking/Sheep Crab - Arthropods
(Loxorthynchus crispatus (L. grandis))
(Loxorthynchus crispatus (L. grandis))
Southern Sea Palm - Algae
(Eisenia arborea)
(Eisenia arborea)
Spiny Lobster - Arthropods
(Panulirus interruptus)
(Panulirus interruptus)
Warty Sea Cucumber - Echinoderms
(Parastichopus parvimensis)
(Parastichopus parvimensis)
Bat Ray - Eagle Ray
(Myliobatis californica)
(Myliobatis californica)
California Scorpionfish - Scorpionfish
(Scorpaena guttata)
(Scorpaena guttata)
Rubberlip Seaperch - Surfperch
(Rhacochilus toxotes)
(Rhacochilus toxotes)
Topsmelt - Silverside
(Atherinops affinis)
(Atherinops affinis)
C-O Sole - Righteye Flounder
(Pleuronichthys coenosus)
(Pleuronichthys coenosus)
Giant Kelpfish - Clinid
(Heterostichus rostratus)
(Heterostichus rostratus)
Pacific Sardine - Herring
(Sardinops sagax)
(Sardinops sagax)
Brown Gorgonian - Cnidarians
(Muricea fruticosa)
(Muricea fruticosa)
California Sea Cucumber - Echinoderms
(Parastichopus californicus)
(Parastichopus californicus)
Christmas Tree Worm - Annelids
(Spirobranchus spinosus)
(Spirobranchus spinosus)
Cobalt Sponge - Poriferans
(Hymenamphiastra cyanocrypta)
(Hymenamphiastra cyanocrypta)
Oarweed - Algae
(Laminaria farlowii)
(Laminaria farlowii)
Pink Abalone - Mollusks
(Haliotis corrugata)
(Haliotis corrugata)
Purple Urchin - Echinoderms
(Strongylocentrotus purpuratus)
(Strongylocentrotus purpuratus)
Red Gorgonian - Cnidarians
(Leptogorgia chilensis)
(Leptogorgia chilensis)
Red Sea Urchin - Echinoderms
(Mesocentrotus franciscanus)
(Mesocentrotus franciscanus)
Southern Staghorn Bryozoan - Bryozoans
(Diaperoforma californica)
(Diaperoforma californica)
Strawberry Anemone - Cnidarians
(Corynactis californica)
(Corynactis californica)
Two-spot Octopus - Mollusks
(Octopus bimaculatus)
(Octopus bimaculatus)
Kelp Rockfish - Scorpionfish
(Sebastes atrovirens)
(Sebastes atrovirens)
Tubesnout - Tubesnout
(Aulorhynchus flavidus)
(Aulorhynchus flavidus)
Angel Shark - Angel Shark
(Squatina californica)
(Squatina californica)
California Moray - Moray
(Gymnothorax mordax)
(Gymnothorax mordax)
Island Kelpfish - Labrisomids
(Alloclinus holderi)
(Alloclinus holderi)
Painted Greenling - Greenling
(Oxylebius pictus)
(Oxylebius pictus)
Sargo - Grunt
(Anisotremus davidsoni)
(Anisotremus davidsoni)
Black Rockfish - Scorpionfish
(Sebastes melanops)
(Sebastes melanops)
Cabezon - Sculpin
(Scorpaenichthys marmoratus)
(Scorpaenichthys marmoratus)
Horn Shark - Bullhead Shark
(Heterodontus francisci)
(Heterodontus francisci)
Jack Mackerel - Jack
(Trachurus symmetricus)
(Trachurus symmetricus)
Jacksmelt - Silverside
(Atherinops californiensis)
(Atherinops californiensis)
Juvenile (YOY) Rockfish - Unidentified - Scorpionfish
(Sebastes sp. (YOY))
(Sebastes sp. (YOY))
Olive Rockfish - Scorpionfish
(Sebastes serranoides)
(Sebastes serranoides)
Scalyhead Sculpin - Sculpin
(Artedius harringtoni)
(Artedius harringtoni)
Silversides spp. - Silverside
(Atherinidae spp.)
(Atherinidae spp.)
Striped Seaperch - Surfperch
(Embiotoca lateralis)
(Embiotoca lateralis)