Lagoon & Land Wildlife
at La Saladita

The American crocodile is the largest reptile in the Americas north of the Amazon basin, regularly reaching 3–4 meters in coastal estuarine populations. It is a salt-tolerant species — one of the few crocodilians capable of sustained marine activity — and is precisely at home in the brackish mixing zones created by river mouths like the Río Petatlán outflow. They are strong, fast in short bursts, and almost entirely nocturnal in their activity near human settlements.

GBIF records 145 verified observations of Crocodylus acutus within 50 km of La Saladita between 2000 and 2025. This count reflects opportunistic and museum records, not systematic survey effort — the actual resident population in the lagoon system is established by regional ecological surveys and village-level knowledge independent of GBIF.

Green iguanas are common, conspicuous, and almost impossible to miss at La Saladita once you know what you are looking at. Adults reach 1.5–2 meters nose to tail, though the tail accounts for most of that length, and the bright orange-green coloration of breeding males is distinctive. They spend most of the day in trees and on stone walls, basking. When disturbed, they drop — sometimes from considerable height — into water or vegetation below.

GBIF records 189 observations within 50 km of Saladita across the survey period, the highest count of any species in this dataset. Expect to see green iguanas daily: in the coconut palms along the beach road, in mango trees, draped over the stone walls between properties, and around the lagoon-edge vegetation.

The black spiny-tailed iguana (*Ctenosaura pectinata*) is the other large iguana at La Saladita — stockier, faster, and more terrestrial than the green iguana. Where green iguanas climb and bask in tree canopies, spiny-tails are rock and wall specialists: you will find them on dry stone walls, old concrete foundations, and rocky outcrops at the north end of the beach. Males are darker — charcoal to near-black with banded tails — and their spiked crests give them a prehistoric appearance that surprises first-time visitors.

GBIF records 82 observations in the survey area. They are endemic to Mexico's Pacific coast dry forests (Jalisco south to Oaxaca, with Guerrero populations being genetically distinct) and listed as Vulnerable due to habitat loss and subsistence hunting. At La Saladita the population appears stable.

Common snook are the prized sport fish of the Río Petatlán lagoon. They are an estuarine predator — ambush hunters that hold in mangrove root systems and lagoon channel edges, waiting for baitfish pushed by tidal movement. In the Saladita system they use the lagoon as nursery and feeding ground, moving between the lagoon and the surf zone through the river mouth outflow.

GBIF records zero snook observations in the bounding box. This is expected: snook are not typically entered into natural history or iNaturalist databases by recreational anglers, and there is no systematic ichthyological survey of this lagoon in the GBIF record. Their presence in the Río Petatlán system is well-established by local fishing knowledge and consistent with snook biogeography across Pacific Mexico.

Roosterfish are one of the most visually distinctive coastal game fish in the eastern Pacific — the seven elongated dorsal-fin rays that give the species its name are unmistakable. They are strictly an eastern Pacific species, ranging from Baja California south to Peru, and are common in the inshore waters and beach breaks along the Guerrero coast. Unlike most sport fish, roosterfish are not targeted commercially at scale; they are primarily a catch-and-release game species.

GBIF records four observations in the survey area between 2000 and 2025 (all in November). This reflects the species' near-absence from museum and iNaturalist databases rather than actual scarcity — roosterfish are a well-known presence in these waters among local and visiting anglers. The IUCN's Data Deficient listing reflects limited population data globally, not a conservation concern at this location.