Common snook
Centropomus undecimalis
The common snook is a species of marine fish in the family Centropomidae of the order Perciformes. The common snook is also known as the sergeant fish or robalo.
35
Countries
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Common_snook
Taxonomy & Classification
Kingdom
Animalia
Phylum
Chordata
Order
Perciformes
Family
Centropomidae
Genus
Centropomus
Common snook belongs to the family Centropomidae, order Perciformes, within the unknown class.
Species Profile
The common snook is a species of marine fish in the family Centropomidae of the order Perciformes. The common snook is also known as the sergeant fish or robalo. It was originally assigned to the sciaenid genus Sciaena; Sciaena undecimradiatus and Centropomus undecimradiatus are obsolete synonyms for the species.
Common snook faces significant pressure from habitat degradation, particularly the destruction and alteration of critical coastal mangrove ecosystems and estuarine nursery areas. Overfishing and recreational angling pressure have reduced population numbers in many areas, while climate change threatens to alter water temperatures and salinity levels that are crucial for their reproductive success and juvenile survival.
Key Facts
Habitat & Distribution
Inhabits warm coastal waters, mangrove creeks, estuaries, and lagoons, often moving between saltwater and brackish environments. Juveniles depend heavily on shallow mangrove nursery areas and seagrass beds, while adults frequent deeper coastal waters, inlets, and the lower reaches of rivers.
Threats
Habitat loss and degradation of mangroves and estuaries
Overfishing and recreational fishing pressure
Climate change impacts on water temperature and salinity
Coastal development and water pollution
Cold temperature events causing mortality
Found in 35 Countries
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). Common snook (Centropomus undecimalis). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/common-snook