"Region: PAC"
"Geographic Zones: Twin Rocks"
"Survey Types: Fish Only, Invertebrates Only, Fish & Invertebrates"
"Dates: 1/1/93 - 3/29/24"
"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 &amp; Invertebrates - <a href="/interpreting-reef-data" target="_blank">How to interpret REEF data?</a>"
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,,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 - <a href="/interpreting-reef-data" target="_blank">How to interpret REEF data?</a>"
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,,,,Total,,Expert,,Novice,
Rank,"Species ID",Species,Family,SF%,DEN,SF%,DEN,SF%,DEN
1,0127,"California Sheephead, (Bodianus pulcher)","Wrasse, (Labridae)",95.45,2.81,100,2.67,94.74,2.83
2,0006,"Garibaldi, (Hypsypops rubicundus)","Damselfish, (Pomacentridae)",95.45,2.43,100,2.33,94.74,2.44
3,0003,"Kelp Bass, (Paralabrax clathratus)","Sea Bass, (Serranidae)",95.45,3.05,100,2.67,94.74,3.11
4,0128,"Senorita, (Oxyjulis californica)","Wrasse, (Labridae)",95.45,3.62,66.67,3.5,100,3.63
5,0129,"Rock Wrasse, (Halichoeres semicinctus)","Wrasse, (Labridae)",90.91,3.05,100,2.67,89.47,3.12
6,0107,"Blackeye Goby, (Rhinogobiops nicholsii)","Goby, (Gobiidae)",81.82,2.67,33.33,4,89.47,2.59
7,0005,"Blacksmith, (Chromis punctipinnis)","Damselfish, (Pomacentridae)",81.82,3.61,33.33,4,89.47,3.59
8,0428,"Wavy Turban Snail, (Lithopoma undosum)","Mollusks, (Mollusca)",71.43,3.2,100,3,60,3.33
9,0108,"Bluebanded Goby, (Lythrypnus dalli)","Goby, (Gobiidae)",68.18,2.6,66.67,3.5,68.42,2.46
10,0035,"Halfmoon, (Medialuna californiensis)","Sea Chub, (Kyphosidae)",63.64,2.07,33.33,2,68.42,2.08
11,0114,"Black Perch, (Embiotoca jacksoni)","Surfperch, (Embiotocidae)",59.09,1.85,33.33,2,63.16,1.83
12,0116,"Kelp Perch, (Brachyistius frenatus)","Surfperch, (Embiotocidae)",59.09,3.08,33.33,4,63.16,3
13,0036,"Opaleye, (Girella nigricans)","Sea Chub, (Kyphosidae)",59.09,2,33.33,1,63.16,2.08
14,0443,"Giant Kelp, (Macrocystis integrifolia / pyrifera)","Algae, (Algae)",57.14,3.75,50,4,60,3.67
15,0429,"Green Abalone, (Haliotis fulgens)","Mollusks, (Mollusca)",57.14,1.75,100,2,40,1.5
16,0002,"Giant Sea Bass, (Stereolepis gigas)","Wreckfish, (Polyprionidae)",54.55,2,66.67,2,52.63,2
17,0408,"California Golden Gorgonian, (Muricea californica)","Cnidarians, (Cnidaria)",42.86,2,50,2,40,2
18,0415,"Crowned Urchin, (Centrostphanus coronatus)","Echinoderms, (Echinodermata)",42.86,2.67,0,0,60,2.67
19,0402,"Red Rock Shrimp, (Lysmata californica)","Arthropods, (Arthropoda)",42.86,2,100,1.5,20,3
20,0162,"Tube-dwelling Anemone, (Pachycerianthus fimbriatus)","Cnidarians, (Cnidaria)",42.86,2.33,100,2,20,3
21,0117,"Pile Perch, (Rhacochilus vacca)","Surfperch, (Embiotocidae)",40.91,1.78,33.33,1,42.11,1.88
22,0413,"Giant Spined Star, (Pisaster giganteus)","Echinoderms, (Echinodermata)",28.57,2,50,2,20,2
23,0401,"Masking/Sheep Crab, (Loxorthynchus crispatus (L. grandis))","Arthropods, (Arthropoda)",28.57,1,50,1,20,1
24,0446,"Southern Sea Palm, (Eisenia arborea)","Algae, (Algae)",28.57,2.5,0,0,40,2.5
25,0403,"Spiny Lobster, (Panulirus interruptus)","Arthropods, (Arthropoda)",28.57,2.5,0,0,40,2.5
26,0411,"Warty Sea Cucumber, (Parastichopus parvimensis)","Echinoderms, (Echinodermata)",28.57,2,50,2,20,2
27,0082,"Bat Ray, (Myliobatis californica)","Eagle Ray, (Myliobatidae)",27.27,1.17,0,0,31.58,1.17
28,0070,"California Scorpionfish, (Scorpaena guttata)","Scorpionfish, (Scorpaenidae)",27.27,1.17,0,0,31.58,1.17
29,0120,"Rubberlip Seaperch, (Rhacochilus toxotes)","Surfperch, (Embiotocidae)",27.27,1.33,0,0,31.58,1.33
30,0337,"Topsmelt, (Atherinops affinis)","Silverside, (Atherinidae)",27.27,3.33,33.33,4,26.32,3.2
31,0022,"C-O Sole, (Pleuronichthys coenosus)","Righteye Flounder, (Pleuronectidae)",22.73,1.6,0,0,26.32,1.6
32,0010,"Giant Kelpfish, (Heterostichus rostratus)","Clinid, (Clinidae)",18.18,1.75,0,0,21.05,1.75
33,0105,"Pacific Sardine, (Sardinops sagax)","Herring, (Clupeidae)",18.18,4,0,0,21.05,4
34,0407,"Brown Gorgonian, (Muricea fruticosa)","Cnidarians, (Cnidaria)",14.29,2,0,0,20,2
35,0169,"California Sea Cucumber, (Parastichopus californicus)","Echinoderms, (Echinodermata)",14.29,2,0,0,20,2
36,0438,"Christmas Tree Worm, (Spirobranchus spinosus)","Annelids, (Annelida)",14.29,3,0,0,20,3
37,0433,"Cobalt Sponge, (Hymenamphiastra cyanocrypta)","Poriferans, (Porifera)",14.29,0,0,0,20,0
38,0445,"Oarweed, (Laminaria farlowii)","Algae, (Algae)",14.29,3,0,0,20,3
39,0430,"Pink Abalone, (Haliotis corrugata)","Mollusks, (Mollusca)",14.29,1,50,1,0,0
40,0416,"Purple Urchin, (Strongylocentrotus purpuratus)","Echinoderms, (Echinodermata)",14.29,2,0,0,20,2
41,0410,"Red Gorgonian, (Leptogorgia chilensis)","Cnidarians, (Cnidaria)",14.29,1,50,1,0,0
42,0176,"Red Sea Urchin, (Mesocentrotus franciscanus)","Echinoderms, (Echinodermata)",14.29,3,50,3,0,0
43,0406,"Southern Staghorn Bryozoan, (Diaperoforma californica)","Bryozoans, (Bryozoa)",14.29,3,0,0,20,3
44,0161,"Strawberry Anemone, (Corynactis californica)","Cnidarians, (Cnidaria)",14.29,1,50,1,0,0
45,0423,"Two-spot Octopus, (Octopus bimaculatus)","Mollusks, (Mollusca)",14.29,2,50,2,0,0
46,0055,"Kelp Rockfish, (Sebastes atrovirens)","Scorpionfish, (Scorpaenidae)",13.64,2.33,33.33,2,10.53,2.5
47,0138,"Tubesnout, (Aulorhynchus flavidus)","Tubesnout, (Aulorhynchidae)",13.64,3,0,0,15.79,3
48,0088,"Angel Shark, (Squatina californica)","Angel Shark, (Squatinidae)",9.09,1,0,0,10.53,1
49,0007,"California Moray, (Gymnothorax mordax)","Moray, (Muraenidae)",9.09,1,0,0,10.53,1
50,0011,"Island Kelpfish, (Alloclinus holderi)","Labrisomids, (Labrisomidae)",9.09,1.5,0,0,10.53,1.5
51,0032,"Painted Greenling, (Oxylebius pictus)","Greenling, (Hexagrammidae)",9.09,1,0,0,10.53,1
52,0039,"Sargo, (Anisotremus davidsoni)","Grunt, (Haemulidae)",9.09,1.5,0,0,10.53,1.5
53,0045,"Black Rockfish, (Sebastes melanops)","Scorpionfish, (Scorpaenidae)",4.55,3,0,0,5.26,3
54,0069,"Cabezon, (Scorpaenichthys marmoratus)","Sculpin, (Cottidae)",4.55,1,33.33,1,0,0
55,0086,"Horn Shark, (Heterodontus francisci)","Bullhead Shark, (Heterodontidae)",4.55,1,0,0,5.26,1
56,0096,"Jack Mackerel, (Trachurus symmetricus)","Jack, (Carangidae)",4.55,4,33.33,4,0,0
57,0097,"Jacksmelt, (Atherinops californiensis)","Silverside, (Atherinidae)",4.55,3,0,0,5.26,3
58,0353,"Juvenile (YOY) Rockfish - Unidentified, (Sebastes sp. (YOY))","Scorpionfish, (Scorpaenidae)",4.55,3,0,0,5.26,3
59,0056,"Olive Rockfish, (Sebastes serranoides)","Scorpionfish, (Scorpaenidae)",4.55,2,0,0,5.26,2
60,0304,"Scalyhead Sculpin, (Artedius harringtoni)","Sculpin, (Cottidae)",4.55,1,0,0,5.26,1
61,0103,"Silversides spp., (Atherinidae spp.)","Silverside, (Atherinidae)",4.55,4,0,0,5.26,4
62,0123,"Striped Seaperch, (Embiotoca lateralis)","Surfperch, (Embiotocidae)",4.55,3,0,0,5.26,3