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Region: TWA

Geographic Zones: GREATER ANTILLES & VIRGIN ISLANDS - Zone 6 » US Virgin Islands - Zone 64 » St John - Zone 6403 » Al's Cut/Jaws (Grass Cay) - Zone 64030023

Survey Types: Species & Abundance, Species Only

Dates: 1/1/93 - 12/26/24

Total Surveys: 20

#Species Reported: 134

Average Species Reported on a Survey by Expert Surveyors: 59.18

Average Species Reported on a Survey by Novice Surveyors: 42.89

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 ISLANDS1109019:44
64US Virgin Islands1109019:44
6403St John1109019:44
64030023Al's Cut/Jaws (Grass Cay)1109019:44
TOTALS1109019:44

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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Yellowtail Damselfish - Damselfish
(Microspathodon chrysurus)
SF: 100% | DEN: 2.55
Barred Hamlet (Caribbean) - Seabass
(Hypoplectrus puella)
SF: 95% | DEN: 2.32
Blue Tang - Surgeonfish
(Acanthurus coeruleus)
SF: 95% | DEN: 2.47
Ocean Surgeonfish - Surgeonfish
(Acanthurus tractus)
SF: 95% | DEN: 2.63
Sharpnose Puffer - Puffer
(Canthigaster rostrata)
SF: 95% | DEN: 2.21
Stoplight Parrotfish - Parrotfish
(Sparisoma viride)
SF: 95% | DEN: 2.79
Trumpetfish - Trumpetfish
(Aulostomus maculatus)
SF: 95% | DEN: 1.84
Bicolor Damselfish - Damselfish
(Stegastes partitus)
SF: 90% | DEN: 3.28
Blue Chromis - Damselfish
(Azurina cyanea)
SF: 90% | DEN: 3
Bluehead - Wrasse
(Thalassoma bifasciatum)
SF: 90% | DEN: 3.17
Foureye Butterflyfish - Butterflyfish
(Chaetodon capistratus)
SF: 90% | DEN: 2.17
French Grunt - Grunt
(Haemulon flavolineatum)
SF: 90% | DEN: 2.56
Graysby - Seabass
(Cephalopholis cruentata)
SF: 90% | DEN: 1.83
Sergeant Major - Damselfish
(Abudefduf saxatilis)
SF: 90% | DEN: 3
Spotted Goatfish - Goatfish
(Pseudupeneus maculatus)
SF: 90% | DEN: 2
Yellowhead Wrasse - Wrasse
(Halichoeres garnoti)
SF: 90% | DEN: 2.78
Brown Chromis - Damselfish
(Azurina multilineata)
SF: 85% | DEN: 2.88
Masked Goby/Glass Goby - Goby
(Coryphopterus personatus/hyalinus)
SF: 85% | DEN: 3.59
Princess Parrotfish - Parrotfish
(Scarus taeniopterus)
SF: 85% | DEN: 2.18
Redband Parrotfish - Parrotfish
(Sparisoma aurofrenatum)
SF: 85% | DEN: 2.82
Threespot Damselfish - Damselfish
(Stegastes planifrons)
SF: 85% | DEN: 3.12
Striped Parrotfish - Parrotfish
(Scarus iseri)
SF: 80% | DEN: 2.69
Banded Butterflyfish - Butterflyfish
(Chaetodon striatus)
SF: 75% | DEN: 2
Creole Wrasse - Wrasse
(Clepticus parrae)
SF: 75% | DEN: 3
Smooth Trunkfish - Boxfish
(Lactophrys triqueter)
SF: 75% | DEN: 1.47
Yellow Goatfish - Goatfish
(Mulloidichthys martinicus)
SF: 75% | DEN: 2.73
Yellowtail Snapper - Snapper
(Ocyurus chrysurus)
SF: 75% | DEN: 2.27
Bar Jack - Jack
(Caranx ruber)
SF: 70% | DEN: 2.36
Harlequin Bass - Seabass
(Serranus tigrinus)
SF: 70% | DEN: 2
Queen Parrotfish - Parrotfish
(Scarus vetula)
SF: 70% | DEN: 2.21
Fairy Basslet - Basslet
(Gramma loreto)
SF: 65% | DEN: 2.31
Sand Diver - Lizardfish
(Synodus intermedius)
SF: 65% | DEN: 1.38
Bridled Goby Complex (Bridled/Sand-Canyon/Patch-Reef) - Goby
(C. glaucofraenum/C. bol/C. tortugae)
SF: 60% | DEN: 2.33
Longspine Squirrelfish - Squirrelfish
(Holocentrus rufus)
SF: 60% | DEN: 2.17
Tomtate - Grunt
(Haemulon aurolineatum)
SF: 60% | DEN: 2.42
Butter Hamlet - Seabass
(Hypoplectrus unicolor)
SF: 55% | DEN: 1.36
Cleaning Goby - Goby
(Elacatinus genie)
SF: 55% | DEN: 2
Saucereye Porgy - Porgy
(Calamus calamus)
SF: 55% | DEN: 1.73
Orangespotted Filefish - Filefish
(Cantherhines pullus)
SF: 50% | DEN: 1.4
Red Hind - Seabass
(Epinephelus guttatus)
SF: 50% | DEN: 1.9
Spanish Hogfish - Wrasse
(Bodianus rufus)
SF: 50% | DEN: 1.6
Yellowtail Hamlet - Seabass
(Hypoplectrus chlorurus)
SF: 50% | DEN: 1.8
Beaugregory - Damselfish
(Stegastes leucostictus)
SF: 45% | DEN: 2.33
Blackbar Soldierfish - Squirrelfish
(Myripristis jacobus)
SF: 45% | DEN: 2
Bluestriped Grunt - Grunt
(Haemulon sciurus)
SF: 45% | DEN: 2.11
Dog Snapper - Snapper
(Lutjanus jocu)
SF: 45% | DEN: 1.56
Glasseye Snapper (Atlantic) - Bigeye
(Heteropriacanthus cruentatus)
SF: 45% | DEN: 1.44
Tan Hamlet - Seabass
(Hypoplectrus randallorum)
SF: 45% | DEN: 1.44
Tobaccofish - Seabass
(Serranus tabacarius)
SF: 45% | DEN: 1.89
Black Hamlet - Seabass
(Hypoplectrus nigricans)
SF: 40% | DEN: 1.38
Cocoa Damselfish - Damselfish
(Stegastes xanthurus)
SF: 40% | DEN: 2.38
Doctorfish - Surgeonfish
(Acanthurus chirurgus)
SF: 40% | DEN: 2
Squirrelfish - Squirrelfish
(Holocentrus adscensionis)
SF: 40% | DEN: 1.75
Cero - Mackerel
(Scomberomorus regalis)
SF: 35% | DEN: 1.43
Clown Wrasse - Wrasse
(Halichoeres maculipinna)
SF: 35% | DEN: 2.43
Longfin Damselfish - Damselfish
(Stegastes diencaeus)
SF: 35% | DEN: 2
Saddled Blenny - Blenny - Labrisomids
(Malacoctenus triangulatus)
SF: 35% | DEN: 2
Slippery Dick - Wrasse
(Halichoeres bivittatus)
SF: 35% | DEN: 2.71
Spinyhead Blenny - Blenny - Pike, tube, and flag
(Acanthemblemaria spinosa)
SF: 35% | DEN: 1.4
Yellowtail (Redfin) Parrotfish - Parrotfish
(Sparisoma rubripinne)
SF: 35% | DEN: 2.43
Colon Goby - Goby
(Coryphopterus dicrus)
SF: 30% | DEN: 1.83
Coney - Seabass
(Cephalopholis fulva)
SF: 30% | DEN: 1.5
Diamond Blenny - Blenny - Labrisomids
(Malacoctenus boehlkei)
SF: 30% | DEN: 1
Goldspot Goby - Goby
(Gnatholepis thompsoni)
SF: 30% | DEN: 1.83
Gray Angelfish - Angelfish
(Pomacanthus arcuatus)
SF: 30% | DEN: 1.33
Nurse Shark - Carpet Shark
(Ginglymostoma cirratum)
SF: 30% | DEN: 1
Porcupinefish - Porcupinefish
(Diodon hystrix)
SF: 30% | DEN: 1.17
Puddingwife - Wrasse
(Halichoeres radiatus)
SF: 30% | DEN: 2.33
Schoolmaster - Snapper
(Lutjanus apodus)
SF: 30% | DEN: 1.83
Sharknose Goby - Goby
(Elacatinus evelynae)
SF: 30% | DEN: 2.17
Spotted Trunkfish - Boxfish
(Lactophrys bicaudalis)
SF: 30% | DEN: 1
Caesar Grunt - Grunt
(Haemulon carbonarium)
SF: 25% | DEN: 1.8
Dusky Damselfish - Damselfish
(Stegastes adustus)
SF: 25% | DEN: 2.2
Dusky Squirrelfish - Squirrelfish
(Sargocentron vexillarium)
SF: 25% | DEN: 1.8
Great Barracuda - Barracuda
(Sphyraena barracuda)
SF: 25% | DEN: 1
Peppermint Goby - Goby
(Coryphopterus lipernes)
SF: 25% | DEN: 1.6
Rainbow Wrasse - Wrasse
(Halichoeres pictus)
SF: 25% | DEN: 1.8
Redtail Parrotfish - Parrotfish
(Sparisoma chrysopterum)
SF: 25% | DEN: 2
Spotted Drum - Drum
(Eques punctatus)
SF: 25% | DEN: 1.2
Whitespotted Filefish - Filefish
(Cantherhines macrocerus)
SF: 25% | DEN: 1.6
Yellowbelly Hamlet - Seabass
(Hypoplectrus aberrans)
SF: 25% | DEN: 1.6
Barred Cardinalfish - Cardinalfish
(Apogon binotatus)
SF: 20% | DEN: 2
Flamefish - Cardinalfish
(Apogon maculatus)
SF: 20% | DEN: 1.75
Mahogany Snapper - Snapper
(Lutjanus mahogoni)
SF: 20% | DEN: 2
Pallid Goby - Goby
(Coryphopterus eidolon)
SF: 20% | DEN: 1.75
Queen Angelfish - Angelfish
(Holacanthus ciliaris)
SF: 20% | DEN: 1.25
Rock Beauty - Angelfish
(Holacanthus tricolor)
SF: 20% | DEN: 1.25
Roughhead Blenny - Blenny - Pike, tube, and flag
(Acanthemblemaria aspera)
SF: 20% | DEN: 1.75
Shy Hamlet - Seabass
(Hypoplectrus guttavarius)
SF: 20% | DEN: 1.75
Smallmouth Grunt - Grunt
(Haemulon chrysargyreum)
SF: 20% | DEN: 2
Sponge Cardinalfish - Cardinalfish
(Phaeoptyx xenus)
SF: 20% | DEN: 1.25
Spotted Moray - Moray
(Gymnothorax moringa)
SF: 20% | DEN: 1.5
White Margate - Grunt
(Haemulon album)
SF: 20% | DEN: 1
Yellowfin Mojarra - Mojarra
(Gerres cinereus)
SF: 20% | DEN: 2.25
Yellowhead Jawfish - Jawfish
(Opistognathus aurifrons)
SF: 20% | DEN: 2
Belted Cardinalfish - Cardinalfish
(Apogon townsendi)
SF: 15% | DEN: 2
French Angelfish - Angelfish
(Pomacanthus paru)
SF: 15% | DEN: 1
Jolthead Porgy - Porgy
(Calamus bajonado)
SF: 15% | DEN: 1.33
Peppermint Basslet - Basslet / Seabass
(Liopropoma rubre)
SF: 15% | DEN: 1
Redlip Blenny - Blenny - Combtooth
(Ophioblennius macclurei)
SF: 15% | DEN: 2
Redspotted Hawkfish - Hawkfish
(Amblycirrhitus pinos)
SF: 15% | DEN: 1
Spanish Grunt - Grunt
(Haemulon macrostoma)
SF: 15% | DEN: 1
Unidentified Silvery Fish (Silversides / Anchovies / Herrings) - Silvery Fishes - Silversides, Herrings, and Anchovies
(Atheriniformes sp./ Clupeiformes sp.)
SF: 15% | DEN: 4
White Grunt - Grunt
(Haemulon plumierii)
SF: 15% | DEN: 1.33
Black Margate - Grunt
(Anisotremus surinamensis)
SF: 10% | DEN: 1
Broadstripe Goby - Goby
(Elacatinus prochilos)
SF: 10% | DEN: 2
Chalk Bass - Seabass
(Serranus tortugarum)
SF: 10% | DEN: 1.5
Goldentail Moray - Moray
(Gymnothorax miliaris)
SF: 10% | DEN: 1
Hybrid Hamlet - Seabass
(Hypoplectrus (Hybrid))
SF: 10% | DEN: 2
Lantern Bass - Seabass
(Serranus baldwini)
SF: 10% | DEN: 2
Pluma - Porgy
(Calamus pennatula)
SF: 10% | DEN: 1.5
Queen Triggerfish - Triggerfish
(Balistes vetula)
SF: 10% | DEN: 1
Reef Butterflyfish - Butterflyfish
(Chaetodon sedentarius)
SF: 10% | DEN: 2
Reef Squirrelfish - Squirrelfish
(Holocentrus coruscus)
SF: 10% | DEN: 1
Rock Hind - Seabass
(Epinephelus adscensionis)
SF: 10% | DEN: 1
Yellowmouth Grouper - Seabass
(Mycteroperca interstitialis)
SF: 10% | DEN: 1
Bandtail Puffer - Puffer
(Sphoeroides spengleri)
SF: 5% | DEN: 1
Bermuda Chub/Gray Chub - Chub
(Kyphosus sectatrix / K. bigibbus)
SF: 5% | DEN: 2
Boga - Grunt
(Haemulon vittatum)
SF: 5% | DEN: 3
Bonnetmouth - Grunt
(Emmelichthyops atlanticus)
SF: 5% | DEN: 3
Brown Garden Eel - Conger
(Heteroconger longissimus)
SF: 5% | DEN: 4
Dusky Blenny - Blenny - Labrisomids
(Malacoctenus gilli)
SF: 5% | DEN: 1
Dusky Cardinalfish - Cardinalfish
(Phaeoptyx pigmentaria)
SF: 5% | DEN: 3
Glassy Sweeper - Sweeper
(Pempheris schomburgkii)
SF: 5% | DEN: 3
Green Sea Turtle - Sea Turtles
(Chelonia mydas)
SF: 5% | DEN: 1
Lane Snapper - Snapper
(Lutjanus synagris)
SF: 5% | DEN: 3
Lofty Triplefin - Triplefin (Blenny)
(Enneanectes altivelis)
SF: 5% | DEN: 1
Longjaw Squirrelfish - Squirrelfish
(Neoniphon marianus)
SF: 5% | DEN: 2
Mackerel Scad - Jack
(Decapterus macarellus)
SF: 5% | DEN: 3
Mutton Snapper - Snapper
(Lutjanus analis)
SF: 5% | DEN: 1
Nassau Grouper - Seabass
(Epinephelus striatus)
SF: 5% | DEN: 1
Scrawled Filefish - Filefish
(Aluterus scriptus)
SF: 5% | DEN: 1
Slender Filefish - Filefish
(Monacanthus tuckeri)
SF: 5% | DEN: 1
Whitestar Cardinalfish - Cardinalfish
(Apogon lachneri)
SF: 5% | DEN: 2