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      A new record of the exotic Guapote jaguar, Parachromis managuensis (Günther, 1867) (Cichliformes, Cichlidae) in a tropical coastal lagoon of the Mexican Pacific slope

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      Neotropical Biology and Conservation

      Pensoft Publishers

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          Abstract

          The presence of Parachromis managuensis has been reported for the first time in the Tres Palos Lagoon, State of Guerrero, on the coastal Lagoon of the Mexican Pacific slope. Two specimens (189 mm and 215 mm standard length) were caught by local fishermen from the community of San Pedro de Las Playas. A description of the morphological and meristic characters of the specimens is provided. The natural distribution of the species is from Honduras to Costa Rica and, as it is predatory and highly territorial, in conjunction with other introduced species, it can present a risk to native species and alter the biological dynamics in the lagoon system.

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          Plagioscion squamosissimus (Sciaenidae) and Parachromis managuensis (Cichlidae): A Threat to Native Fishes of the Doce River in Minas Gerais, Brazil

          The middle section of the lake basin of the Doce River in Minas Gerais State, Brazil is plagued by grave environmental problems, including the introduction of non-native fish, which reduces the biodiversity of this region. This study reports the presence of two newly-detected non-native species in the Doce River Basin. Sampling efforts included gill nets with mesh size of 3 to 12 mm (measured diagonally) and trawling nets, both of which were used in independent field campaigns in 2002 and 2011. The two new invasive Perciform fishes, Plagioscion squamosissimus (Heckel 1840) and Parachromis managuensis (Günther 1867) were collected in Caratinga and Rio Doce municipalities. These records and other reports on non-native fishes suggest favorable environmental conditions for the establishment of invasive species in this drainage. These invasive species have behavior and diet observed in other wide distribution exotic fish of Rio Doce Basin representing a threat to the 77 native fishes of this region, 37 of which are endangered.
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            Tropical fish community does not recover 45 years after predator introduction

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              Exotic and invasive fishes in Mexico

              This paper presents a list of the exotic fish species introduced in Mexican aquatic systems. This list is the result of the systematized information contained in several databases of ichthyological collections around the world and different publications. A total of 104 species were found, distributed in 19 families and 51 genera. The most species-rich were Cyprinidae with 22 species, Poeciliidae (19 species), Cichlidae (15 species) and Centrarchidae (13 species). A map and an electronic database were created based on the knowledge of the species, showing the known introductions of exotic fishes in the country. The information was obtained from a database stored in the Colección Nacional de Peces IBUNAM, which can be accessed online. This study has a high importance for the knowledge of the exotic fish fauna of Mexico and its current status.
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                Author and article information

                Journal
                Neotropical Biology and Conservation
                NBC
                Pensoft Publishers
                2236-3777
                November 18 2020
                November 18 2020
                : 15
                : 4
                : 479-485
                Article
                10.3897/neotropical.15.e57669
                © 2020

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