Local and regional patterns of fish assemblages in coastal lagoons surrounded by mangroves, Gulf of Tehuantepec in the south Pacific of Mexico

• DOI: 10.3856/vol49-issue1-fulltext-2488
• Publication Date: 2021-03-02T01:58:15Z
• Authors: Emilio I. Romero-...; Juan J. Schmitter...; Ernesto Velázquez...; Adán E. Gómez-Gon...
• Keywords: 0106 biological sciences; 14. Life underwater; 15. Life on land; 16. Peace & justice; 01 natural sciences

We analyzed the local variation of fish assemblages in four coastal lagoon systems surrounded by mangroves, draining into Gulf Tehuantepec (Pacific versant Mexico), and determined spatial patterns alpha, beta, gamma diversity. Fish were sampled between 2004 2016 at 63 sites using cast nets. The collected data supplemented with information obtained from published works for three other lagoons regional analysis. Local richness was high (89 species a total 19,017 specimens systems). Locally, dissolved oxygen, depth, distance to mangrove variables that significantly affected abundance one or more systems. Chantuto-Panzacola system showed highest richness, different systems, although trophic groups similar. Regionally, two, Istmo Soconusco complexes identified, whose turnover rate (0.36) diversity (176) increased north south. growing area, both locally regionally, making this highly explanatory variable. is an environmentally heterogeneous region, ecological defined according spatiotemporal scale, which should be considered delineation ecoregions management planning.