Hoai Bay

Ecosystem Overview

The Hoai Bay ecosystem supports 51 documented wildlife species across 37 taxonomic genera. Located in Kauai County, Hawaii, this area provides critical habitat with diverse natural communities. The location hosts 11 frequently observed species and 10 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Kauai nearby has 49% more documented species, Hoai Bay offers unique wildlife observation opportunities. This location ranks #7 for species diversity among 23 Kauai County County natural areas, placing it in the 70th percentile for biodiversity.

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 23 locations

Species Distribution

Very Common11 species

Common15 species

Occasional15 species

Rare10 species

Regional Context

Regional Ranking

#7 of 23 locations

70th percentile for diversity

vs. Kauai

-49% species diversity

Ecosystem Overview

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Biodiversity Highlights

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Species Distribution

Very Common‌

Common‌

Occasional‌

Rare‌

Regional Context

Regional Ranking

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Most Common Species

Showing 20 most frequently observed species out of 51 total documented species.

Acanthurus olivaceus

Orangespot Surgeonfish

Very Common5 obs.

Mulloidichthys vanicolensis

Yellowfin goatfish

Very Common4 obs.

Chaetodon lunula

Raccoon Butterflyfish

Very Common3 obs.

Abudefduf sordidus

Blackspot Sergeant Major

Very Common3 obs.

Cirrhitus pinnulatus

Stocky hawkfish

Very Common3 obs.

Chaetodon auriga

threadfin butterflyfish

Common3 obs.

Abudefduf abdominalis

Hawaiian sergeant

Common3 obs.

Melichthys niger

Black Triggerfish

Common3 obs.

Labroides phthirophagus

Cleaner Wrasse

Common3 obs.

Lutjanus kasmira

Common bluestripe snapper

Common3 obs.

Thalassoma trilobatum

Green-barred wrasse

Common2 obs.

Novaculichthys taeniourus

Rockmover wrasse

Occasional2 obs.

Zanclus cornutus

Moorish Idol

Occasional2 obs.

Thalassoma duperrey

Saddle-back wrasse

Occasional2 obs.

Abudefduf vaigiensis

Damselfish

Occasional2 obs.

Parupeneus multifasciatus

Manybar Goatfish

Occasional2 obs.

Scarus rubroviolaceus

Ember parrotfish

Occasional2 obs.

Chaetodon fremblii

Bluestripe Butterflyfish

Rare2 obs.

Chaetodon ephippium

Saddle butterflyfish

Rare2 obs.

Pocillopora meandrina

cauliflower coral

Rare2 obs.

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Most Common Species

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Get Your Personalized Field Guide

Download a professional PDF field guide featuring all the species found in Hoai Bay. Perfect for outdoor adventures, education, and nature exploration.

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Regional Comparison

Regional Ranking

Species Count

+4%

vs. Regional Average

Compared to 8 nearby locations in Kauai County County, Hawaii

Nearby Natural Areas

Kauai

Importance: 0.54

100 species

-49% vs. current

Niihau

Importance: 0.46

36 species

+42% vs. current

Lihue

Importance: 0.43

100 species

-49% vs. current

Kauai County

Importance: 0.36

100 species

-49% vs. current

Aepoekolu Reservoir

Importance: 0.35

1 species

+5000% vs. current

Aepo Reservoir

Importance: 0.35

1 species

+5000% vs. current

Yam Bay

Importance: 0.33

44 species

+16% vs. current

Kaheka Bay

Importance: 0.33

7 species

+629% vs. current

About This Comparison

These comparisons are based on documented wildlife observations from citizen science data. Locations with higher species counts may have more observation activity, different habitat types, or larger coverage areas. Regional rankings help identify biodiversity hotspots and unique natural areas within Kauai County County.

Regional Comparison

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Regional Ranking

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Species Count

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vs. Regional Average

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Nearby Natural Areas

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About This Comparison

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Regional Comparison

Regional Ranking

Species Count

+4%

vs. Regional Average

Compared to 8 nearby locations in Kauai County County, Hawaii

Nearby Natural Areas

Kauai

Importance: 0.54

100 species

-49% vs. current

Niihau

Importance: 0.46

36 species

+42% vs. current

Lihue

Importance: 0.43

100 species

-49% vs. current

Kauai County

Importance: 0.36

100 species

-49% vs. current

Aepoekolu Reservoir

Importance: 0.35

1 species

+5000% vs. current

Aepo Reservoir

Importance: 0.35

1 species

+5000% vs. current

Yam Bay

Importance: 0.33

44 species

+16% vs. current

Kaheka Bay

Importance: 0.33

7 species

+629% vs. current

About This Comparison

Ecosystem Overview

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 23 locations

Species Distribution

Very Common11 species

Common15 species

Occasional15 species

Rare10 species

Regional Context

Regional Ranking

#7 of 23 locations

70th percentile for diversity

vs. Kauai

-49% species diversity

Most Common Species

Showing 20 most frequently observed species out of 51 total documented species.

Acanthurus olivaceus

Orangespot Surgeonfish

Very Common5 obs.

Mulloidichthys vanicolensis

Yellowfin goatfish

Very Common4 obs.

Chaetodon lunula

Raccoon Butterflyfish

Very Common3 obs.

Abudefduf sordidus

Blackspot Sergeant Major

Very Common3 obs.

Cirrhitus pinnulatus

Stocky hawkfish

Very Common3 obs.

Chaetodon auriga

threadfin butterflyfish

Common3 obs.

Abudefduf abdominalis

Hawaiian sergeant

Common3 obs.

Melichthys niger

Black Triggerfish

Common3 obs.

Labroides phthirophagus

Cleaner Wrasse

Common3 obs.

Lutjanus kasmira

Common bluestripe snapper

Common3 obs.

Thalassoma trilobatum

Green-barred wrasse

Common2 obs.

Novaculichthys taeniourus

Rockmover wrasse

Occasional2 obs.

Zanclus cornutus

Moorish Idol

Occasional2 obs.

Thalassoma duperrey

Saddle-back wrasse

Occasional2 obs.

Abudefduf vaigiensis

Damselfish

Occasional2 obs.

Parupeneus multifasciatus

Manybar Goatfish

Occasional2 obs.

Scarus rubroviolaceus

Ember parrotfish

Occasional2 obs.

Chaetodon fremblii

Bluestripe Butterflyfish

Rare2 obs.

Chaetodon ephippium

Saddle butterflyfish

Rare2 obs.

Pocillopora meandrina

cauliflower coral

Rare2 obs.

Want the Complete Field Guide?

Get all 51 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.

Premium field guide includes identification tips, seasonal patterns, and professional layout optimized for field use.