Isla Mujeres is abundant in Marine Life, from parrotfishes, french angelfish, grunt fish and hundreds of different species across all the dive sites, here is a list of the 10 most common ones around the island.
#10
Blue Chromis Damselfish
Size: 3 to 4 in. (7 to 10 cm)
Depth: 35-80 ft. (12-25 m)
#8
Bluestriped Grunt
Size: 8 to 14 in. (20 to 35 cm)
Depth: 12-50 ft. (4-15 m)
#6
Ocean Surgeonfish
Size: 6 to 12 in. (15 to 30 cm)
Depth: 15-80 ft. (5-25 m)
#4
French Grunt
Size: 6 to 10 in. (15 to 25 cm)
Depth: 10-60 ft. (3-18 m)
#2
Bluehead Wrasse
Size: 4 to 6 in. (10 to 15 cm)
Depth: 6-80 ft. (2-25 m)
#9
Bicolor Damselfish
Size: 2 to 3.5 in. (5 to 9 cm)
Depth: 20-80 ft. (6-25 m)
#7
Yellowhead Wrasse
Size: 5 to 7 in. (12 to 18 cm)
Depth: 10-50 ft. (3-15 m)
#5
Sergeant Major
Size: 4 to 6 in. (10 to 15 cm)
Depth: 1-40 ft. (0-12 m)
#3
Porkfish Grunt
Size: 6 to 10 in. (15 to 25 cm)
Depth: 10-70 ft. (3-21 m)
#1
Blue Tang Surgeonfish
Size: 5 to 15 in. (13 to 38 cm)
Depth: 10-60 ft. (3-18 m)
visit Florent’s Guide for more info about the different species!
10 Most Reported Fish Species in Isla Mujeres
A complete report from the Species Biodiversity Report from the species that are seen while diving in Isla Mujeres. The Sighting Frequency per dive and the average Species Density per dive being
Single=1
Few=2
Many=3
Abundant=4.
| RANK | NAME | FAMILY | SIGHTING FREQUENCY % | SPECIES DENSITY |
| 1 | Blue Tang (Acanthurus coeruleus) |
Surgeonfish (Acanthuridae) |
88.85 | 2.75 |
| 2 | Bluehead (Thalassoma bifasciatum) |
Wrasse (Labridae) |
87.26 | 2.98 |
| 3 | Porkfish (Anisotremus virginicus) |
Grunt (Haemulidae) |
81.77 | 2.62 |
| 4 | French Grunt (Haemulon flavolineatum) |
Grunt (Haemulidae) |
80.35 | 3.29 |
| 5 | Sergeant Major (Abudefduf saxatilis) |
Damselfish (Pomacentridae) |
79.47 | 2.84 |
| 6 | Ocean Surgeonfish (Acanthurus bahianus) |
Surgeonfish (Acanthuridae) |
78.05 | 2.79 |
| 7 | Yellowhead Wrasse (Halichoeres garnoti) |
Wrasse (Labridae) |
76.99 | 2.91 |
| 8 | Bluestriped Grunt (Haemulon sciurus) |
Grunt (Haemulidae) |
75.04 | 2.79 |
| 9 | Bicolor Damselfish (Stegastes partitus) |
Damselfish (Pomacentridae) |
74.87 | 3.12 |
| 10 | Blue Chromis (Chromis cyanea) |
Damselfish (Pomacentridae) |
74.69 | 3.23 |
REEF. 2020. Reef Environmental Education Foundation Volunteer Fish Survey Project Database. World Wide Web electronic publication. www.REEF.org, date of download (23 March 2020).