Fishes from Lake Yaxhá, Mayan Biosphere Reserve, Petén, Guatemala

• DOI: 10.15560/11.5.1751
• Publication Date: 2015-09-29T19:43:16Z
• Authors: Christian Barrientos; Diego Elías; Yasmín Quintana
• Keywords: 0106 biological sciences; Neotropical Fish Assemblages; ichthyofauna; QH301-705.5; Mayan Biosphere Reserve; Catfish; Aquatic Science; 01 natural sciences; Agricultural and Biological Sciences; Catch per unit effort; Biosphere; Importance and Conservation of Freshwater Biodiversity; 14. Life underwater; Biology (General); Biology; Ecosystem; Nature and Landscape Conservation; Electrofishing; Geography; Ecology; Lake ecosystem; Loricariidae; Life Sciences; Paleontology; Central America; artisanal fishery; 15. Life on land; Protected area; Length-Weight Relationships of Fish Species; Structural basin; Fish; Fishery; Archaeology; FOS: Biological sciences; electrofishing; Environmental Science; Physical Sciences; Biogeography and Conservation of Neotropical Freshwater Fishes; Species richness

The Mayan Biosphere Reserve is the largest protected area in Guatemala. Lake Yaxhá is located inside the core zone. Using electrofishing, seines and gillnets we assessed the fish richness and community in 2011. We collected 18 species distributed in seven families, with Cichlidae (seven species) and Poecilidae (five species) the most specious. We evaluated the effectiveness of electrofishing to sample the most important fish in the artisanal fishery in Petén, Petenia splendida, with September being the month with the highest capture per unit of effort. Lake Yaxhá assemblage was similar to the Usumacinta through a hierarchical cluster analysis, despite being located in the Mopan-Hondo basin. Lake Yaxhá is the only system in the area that does not have non-native fish species, emphasizing the importance of conservation of this lentic system in the Mayan Biosphere Reserve.