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Region: TWA

Geographic Zones: GREATER ANTILLES & VIRGIN ISLANDS - Zone 6 » US Virgin Islands - Zone 64 » St Thomas - Zone 6402 » Arches and Tunnels (off Thatch Island) - Zone 64020015

Survey Types: Species & Abundance, Species Only

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

Total Surveys: 26

#Species Reported: 140

Average Species Reported on a Survey by Expert Surveyors: 67.27

Average Species Reported on a Survey by Novice Surveyors: 46.47

Survey Type: SA = Species & Abundance; SO = Species Only - 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
CodeNameSASOSASO(H:M)
6GREATER ANTILLES & VIRGIN ISLANDS11015024:15
64US Virgin Islands11015024:15
6402St Thomas11015024:15
64020015Arches and Tunnels (off Thatch Island)11015024:15
TOTALS11015024:15

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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Stoplight Parrotfish - Parrotfish
(Sparisoma viride)
SF: 100% | DEN: 2.85
Bicolor Damselfish - Damselfish
(Stegastes partitus)
SF: 96.15% | DEN: 3.48
Princess Parrotfish - Parrotfish
(Scarus taeniopterus)
SF: 96.15% | DEN: 2.52
Redband Parrotfish - Parrotfish
(Sparisoma aurofrenatum)
SF: 96.15% | DEN: 2.88
Blue Tang - Surgeonfish
(Acanthurus coeruleus)
SF: 92.31% | DEN: 2.83
Bluehead - Wrasse
(Thalassoma bifasciatum)
SF: 92.31% | DEN: 3.42
Brown Chromis - Damselfish
(Azurina multilineata)
SF: 92.31% | DEN: 3.08
Foureye Butterflyfish - Butterflyfish
(Chaetodon capistratus)
SF: 92.31% | DEN: 2.58
Sergeant Major - Damselfish
(Abudefduf saxatilis)
SF: 92.31% | DEN: 3.13
Trumpetfish - Trumpetfish
(Aulostomus maculatus)
SF: 92.31% | DEN: 2
Coney - Seabass
(Cephalopholis fulva)
SF: 88.46% | DEN: 1.87
French Grunt - Grunt
(Haemulon flavolineatum)
SF: 88.46% | DEN: 2.57
Spotted Goatfish - Goatfish
(Pseudupeneus maculatus)
SF: 88.46% | DEN: 2
Banded Butterflyfish - Butterflyfish
(Chaetodon striatus)
SF: 84.62% | DEN: 2
Fairy Basslet - Basslet
(Gramma loreto)
SF: 84.62% | DEN: 2.64
Longspine Squirrelfish - Squirrelfish
(Holocentrus rufus)
SF: 84.62% | DEN: 2.32
Ocean Surgeonfish - Surgeonfish
(Acanthurus tractus)
SF: 84.62% | DEN: 2.86
Yellowtail Damselfish - Damselfish
(Microspathodon chrysurus)
SF: 84.62% | DEN: 2.41
Saddled Blenny - Blenny - Labrisomids
(Malacoctenus triangulatus)
SF: 80.77% | DEN: 2.33
Striped Parrotfish - Parrotfish
(Scarus iseri)
SF: 80.77% | DEN: 2.71
Bar Jack - Jack
(Caranx ruber)
SF: 76.92% | DEN: 2.5
Doctorfish - Surgeonfish
(Acanthurus chirurgus)
SF: 76.92% | DEN: 2.5
Harlequin Bass - Seabass
(Serranus tigrinus)
SF: 76.92% | DEN: 1.7
Mahogany Snapper - Snapper
(Lutjanus mahogoni)
SF: 76.92% | DEN: 2.1
Masked Goby/Glass Goby - Goby
(Coryphopterus personatus/hyalinus)
SF: 76.92% | DEN: 3.6
Puddingwife - Wrasse
(Halichoeres radiatus)
SF: 76.92% | DEN: 2.25
Reef Butterflyfish - Butterflyfish
(Chaetodon sedentarius)
SF: 76.92% | DEN: 1.75
Yellowhead Wrasse - Wrasse
(Halichoeres garnoti)
SF: 76.92% | DEN: 2.95
Bluestriped Grunt - Grunt
(Haemulon sciurus)
SF: 73.08% | DEN: 1.74
Sharpnose Puffer - Puffer
(Canthigaster rostrata)
SF: 69.23% | DEN: 2.06
Yellow Goatfish - Goatfish
(Mulloidichthys martinicus)
SF: 69.23% | DEN: 2.67
Yellowtail Snapper - Snapper
(Ocyurus chrysurus)
SF: 69.23% | DEN: 2.56
Blue Chromis - Damselfish
(Azurina cyanea)
SF: 65.38% | DEN: 2.88
Caesar Grunt - Grunt
(Haemulon carbonarium)
SF: 65.38% | DEN: 2.24
Dusky Squirrelfish - Squirrelfish
(Sargocentron vexillarium)
SF: 65.38% | DEN: 2.41
Graysby - Seabass
(Cephalopholis cruentata)
SF: 65.38% | DEN: 1.88
Spotted Drum - Drum
(Eques punctatus)
SF: 65.38% | DEN: 1.41
Tobaccofish - Seabass
(Serranus tabacarius)
SF: 65.38% | DEN: 1.65
Smooth Trunkfish - Boxfish
(Lactophrys triqueter)
SF: 61.54% | DEN: 1.31
Beaugregory - Damselfish
(Stegastes leucostictus)
SF: 57.69% | DEN: 2.4
Belted Cardinalfish - Cardinalfish
(Apogon townsendi)
SF: 57.69% | DEN: 2.27
Cleaning Goby - Goby
(Elacatinus genie)
SF: 57.69% | DEN: 2
Flamefish - Cardinalfish
(Apogon maculatus)
SF: 57.69% | DEN: 2.07
Red Hind - Seabass
(Epinephelus guttatus)
SF: 57.69% | DEN: 1.73
Redlip Blenny - Blenny - Combtooth
(Ophioblennius macclurei)
SF: 57.69% | DEN: 1.8
Barred Hamlet (Caribbean) - Seabass
(Hypoplectrus puella)
SF: 53.85% | DEN: 1.86
Gray Angelfish - Angelfish
(Pomacanthus arcuatus)
SF: 53.85% | DEN: 1.57
Queen Parrotfish - Parrotfish
(Scarus vetula)
SF: 53.85% | DEN: 1.86
Glassy Sweeper - Sweeper
(Pempheris schomburgkii)
SF: 50% | DEN: 3.77
Orangespotted Filefish - Filefish
(Cantherhines pullus)
SF: 50% | DEN: 1.77
Slippery Dick - Wrasse
(Halichoeres bivittatus)
SF: 50% | DEN: 2.69
Spanish Hogfish - Wrasse
(Bodianus rufus)
SF: 50% | DEN: 1.92
Unidentified Silvery Fish (Silversides / Anchovies / Herrings) - Silvery Fishes - Silversides, Herrings, and Anchovies
(Atheriniformes sp./ Clupeiformes sp.)
SF: 50% | DEN: 4
Whitespotted Filefish - Filefish
(Cantherhines macrocerus)
SF: 50% | DEN: 1.38
Black Hamlet - Seabass
(Hypoplectrus nigricans)
SF: 46.15% | DEN: 1.58
Blackbar Soldierfish - Squirrelfish
(Myripristis jacobus)
SF: 46.15% | DEN: 2.42
Clown Wrasse - Wrasse
(Halichoeres maculipinna)
SF: 46.15% | DEN: 2.67
Cocoa Damselfish - Damselfish
(Stegastes xanthurus)
SF: 46.15% | DEN: 2.5
Squirrelfish - Squirrelfish
(Holocentrus adscensionis)
SF: 46.15% | DEN: 2
Blackear Wrasse - Wrasse
(Halichoeres poeyi)
SF: 42.31% | DEN: 1.64
Saucereye Porgy - Porgy
(Calamus calamus)
SF: 42.31% | DEN: 1.27
Spotted Moray - Moray
(Gymnothorax moringa)
SF: 42.31% | DEN: 1.09
Barred Cardinalfish - Cardinalfish
(Apogon binotatus)
SF: 38.46% | DEN: 2.4
Bridled Goby Complex (Bridled/Sand-Canyon/Patch-Reef) - Goby
(C. glaucofraenum/C. venezuelae/C. tortugae)
SF: 38.46% | DEN: 2.8
Sand Diver - Lizardfish
(Synodus intermedius)
SF: 38.46% | DEN: 1.6
Slender Filefish - Filefish
(Monacanthus tuckeri)
SF: 38.46% | DEN: 1.5
Bermuda Chub/Gray Chub - Chub
(Kyphosus sectatrix / K. bigibbus)
SF: 34.62% | DEN: 1.89
Butter Hamlet - Seabass
(Hypoplectrus unicolor)
SF: 34.62% | DEN: 1.44
French Angelfish - Angelfish
(Pomacanthus paru)
SF: 34.62% | DEN: 1.33
Longfin Damselfish - Damselfish
(Stegastes diencaeus)
SF: 34.62% | DEN: 2.11
Sharknose Goby - Goby
(Elacatinus evelynae)
SF: 34.62% | DEN: 1.67
Threespot Damselfish - Damselfish
(Stegastes planifrons)
SF: 34.62% | DEN: 3
Cero - Mackerel
(Scomberomorus regalis)
SF: 30.77% | DEN: 1.88
Colon Goby - Goby
(Coryphopterus dicrus)
SF: 30.77% | DEN: 1.88
Creole Wrasse - Wrasse
(Bodianus parrae)
SF: 30.77% | DEN: 2.5
Dusky Damselfish - Damselfish
(Stegastes adustus)
SF: 30.77% | DEN: 2.88
Spinyhead Blenny - Blenny - Pike, tube, and flag
(Acanthemblemaria spinosa)
SF: 30.77% | DEN: 1.85
Tarpon - Tarpon
(Megalops atlanticus)
SF: 30.77% | DEN: 1.75
Yellowtail (Redfin) Parrotfish - Parrotfish
(Sparisoma rubripinne)
SF: 30.77% | DEN: 2.25
Northern / Southern Sennet - Barracuda
(Sphyraena borealis/picudilla)
SF: 26.92% | DEN: 3.29
Queen Angelfish - Angelfish
(Holacanthus ciliaris)
SF: 26.92% | DEN: 1.29
Spotfin Butterflyfish - Butterflyfish
(Chaetodon ocellatus)
SF: 26.92% | DEN: 1.43
Black Margate - Grunt
(Anisotremus surinamensis)
SF: 23.08% | DEN: 1
Greater Soapfish - Soapfishes
(Rypticus saponaceus)
SF: 23.08% | DEN: 1
Porcupinefish - Porcupinefish
(Diodon hystrix)
SF: 23.08% | DEN: 1.5
Rusty Goby - Goby
(Priolepis hipoliti)
SF: 23.08% | DEN: 1.83
Smallmouth Grunt - Grunt
(Haemulon chrysargyreum)
SF: 23.08% | DEN: 2.83
Glasseye Snapper (Atlantic) - Bigeye
(Heteropriacanthus cruentatus)
SF: 19.23% | DEN: 2
Highhat - Drum
(Pareques acuminatus / Pareques lineatus)
SF: 19.23% | DEN: 1
Tan Hamlet - Seabass
(Hypoplectrus randallorum)
SF: 19.23% | DEN: 1.6
Dusky Cardinalfish - Cardinalfish
(Phaeoptyx pigmentaria)
SF: 15.38% | DEN: 1.75
Goldentail Moray - Moray
(Gymnothorax miliaris)
SF: 15.38% | DEN: 1
Goldspot Goby - Goby
(Gnatholepis thompsoni)
SF: 15.38% | DEN: 1.75
Pluma - Porgy
(Calamus pennatula)
SF: 15.38% | DEN: 1
Spanish Grunt - Grunt
(Haemulon macrostoma)
SF: 15.38% | DEN: 1.75
Bandtail Puffer - Puffer
(Sphoeroides spengleri)
SF: 11.54% | DEN: 1
Barred Clingfish - Clingfish
(Tomicodon fasciatus)
SF: 11.54% | DEN: 1
Great Barracuda - Barracuda
(Sphyraena barracuda)
SF: 11.54% | DEN: 1
Hawksbill Sea Turtle - Sea Turtles
(Eretmochelys imbricata)
SF: 11.54% | DEN: 1
Pallid Goby - Goby
(Coryphopterus eidolon)
SF: 11.54% | DEN: 1.33
Porkfish - Grunt
(Anisotremus virginicus)
SF: 11.54% | DEN: 1
Reef Squirrelfish - Squirrelfish
(Holocentrus coruscus)
SF: 11.54% | DEN: 1.33
Unidentified Darkheaded Blenny Emblemariopsis sp. B - Blenny - Pike, tube, and flag
(Emblemariopsis sp. B (Darkheaded))
SF: 11.54% | DEN: 1
Broadstripe Goby - Goby
(Elacatinus prochilos)
SF: 7.69% | DEN: 2
Bucktooth Parrotfish - Parrotfish
(Sparisoma radians)
SF: 7.69% | DEN: 3
Cardinal Soldierfish - Squirrelfish
(Plectrypops retrospinis)
SF: 7.69% | DEN: 1.5
Goldline Blenny - Blenny - Labrisomids
(Malacoctenus aurolineatus)
SF: 7.69% | DEN: 1
Green Moray - Moray
(Gymnothorax funebris)
SF: 7.69% | DEN: 1
Greenblotch Parrotfish - Parrotfish
(Sparisoma atomarium)
SF: 7.69% | DEN: 2
Lantern Bass - Seabass
(Serranus baldwini)
SF: 7.69% | DEN: 2
Longjaw Squirrelfish - Squirrelfish
(Neoniphon marianus)
SF: 7.69% | DEN: 2.5
Rainbow Wrasse - Wrasse
(Halichoeres pictus)
SF: 7.69% | DEN: 1.5
Rock Hind - Seabass
(Epinephelus adscensionis)
SF: 7.69% | DEN: 1.5
Sand Tilefish - Tilefish
(Malacanthus plumieri)
SF: 7.69% | DEN: 2
Schoolmaster - Snapper
(Lutjanus apodus)
SF: 7.69% | DEN: 2.5
Scrawled Filefish - Filefish
(Aluterus scriptus)
SF: 7.69% | DEN: 1
Silver Porgy - Porgy
(Diplodus caudimacula)
SF: 7.69% | DEN: 1
Spotted Trunkfish - Boxfish
(Lactophrys bicaudalis)
SF: 7.69% | DEN: 1
Balloonfish - Porcupinefish
(Diodon holocanthus)
SF: 3.85% | DEN: 1
Boga - Grunt
(Haemulon vittatum)
SF: 3.85% | DEN: 2
Bonnetmouth - Grunt
(Emmelichthyops atlanticus)
SF: 3.85% | DEN: 3
Hogfish - Wrasse
(Lachnolaimus maximus)
SF: 3.85% | DEN: 2
Honeycomb Cowfish - Boxfish
(Acanthostracion polygonius)
SF: 3.85% | DEN: 1
Horse-eye Jack - Jack
(Caranx latus)
SF: 3.85% | DEN: 2
Mackerel Scad - Jack
(Decapterus macarellus)
SF: 3.85% | DEN: 3
Mutton Snapper - Snapper
(Lutjanus analis)
SF: 3.85% | DEN: 1
Peacock Flounder - Flounder
(Bothus lunatus)
SF: 3.85% | DEN: 1
Queen Triggerfish - Triggerfish
(Balistes vetula)
SF: 3.85% | DEN: 1
Redbelly (pka Redeye) Triplefin - Triplefin (Blenny)
(Enneanectes jordani (pka E. pectoralis))
SF: 3.85% | DEN: 3
Redspotted Hawkfish - Hawkfish
(Amblycirrhitus pinos)
SF: 3.85% | DEN: 1
Redtail Parrotfish - Parrotfish
(Sparisoma chrysopterum)
SF: 3.85% | DEN: 2
Roughhead Blenny - Blenny - Pike, tube, and flag
(Acanthemblemaria aspera)
SF: 3.85% | DEN: 2
Scrawled Cowfish - Boxfish
(Acanthostracion quadricornis)
SF: 3.85% | DEN: 1
Shortfin Sweeper - Sweeper
(Pempheris poeyi)
SF: 3.85% | DEN: 3
Shy Hamlet - Seabass
(Hypoplectrus guttavarius)
SF: 3.85% | DEN: 1
Spotted Eagle Ray - Eagle Ray
(Aetobatus narinari)
SF: 3.85% | DEN: 1
White Grunt - Grunt
(Haemulon plumierii)
SF: 3.85% | DEN: 2
Yellowfin Mojarra - Mojarra
(Gerres cinereus)
SF: 3.85% | DEN: 2
Yellowhead Jawfish - Jawfish
(Opistognathus aurifrons)
SF: 3.85% | DEN: 2
Yellowtail Hamlet - Seabass
(Hypoplectrus chlorurus)
SF: 3.85% | DEN: 2