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      La importancia y diversidad de los recursos pesqueros del río Usumacinta, México Translated title: The importance and diversity of fisheries resources at the Usumacinta River, Mexico

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          Abstract

          Resumen La cuenca del Usumacinta es uno de los principales sistemas hidrológicos de México, posee una alta diversidad de flora y fauna, y constituye el último río vivo en el país, por consiguiente la generación de información que ayude a su aprovechamiento sustentable es urgente. El objetivo de esta investigación es analizar la diversidad de especies asociada a la pesca en la cuenca del Usumacinta, haciendo énfasis en la importancia de las especies introducidas en relación a la diversidad de especies explotadas. La cuenca fue dividida en 3 regiones (selva, lagunas y costa). En toda la cuenca, la pesca de pequeña escala explota 35 especies (30 especies de peces y 5 de crustáceos). La mojarra pinta (Parachromis managuensis), la tilapia (Oreochromis niloticus), el bobo escama (Ctenopharyngodon idella), la carpa común (Cyprinus carpio), la carpa roja (Carassius auratus) y los plecos (Pterygoplichthys spp.) son especies introducidas, representando 20.7% del total. En la zona selva, las especies introducidas alcanzaron altas tasas de captura, siendo las carpas las más capturadas. A pesar de que estas especies son parte fundamental de las pesquerías del Usumacinta, sus efectos sobre el ecosistema deben ser analizados, especialmente especies con altas abundancias y nula importancia comercial como los plecos.

          Translated abstract

          Abstract The Usumacinta basin is one of the main hydrological systems in Mexico, it has a high diversity of flora and fauna, and it is the last free flowing river in the country, so that the generation of information that helps its sustainable use is urgent. The aim of this research is to analyze the species diversity associated with fishing in the basin of the Usumacinta, considering the importance of invasive species in relation to the diversity of exploited species. The basin was divided into 3 regions (forest, lagoons and coast). Throughout the basin, small-scale fisheries exploited 35 species (30 species of fish and 5 of crustaceans). The jaguar guapote (Parachromis managuensis), tilapia (Oreochromis niloticus), grass carp (Ctenopharyngodon idella), common carp (Cyprinus carpio), red carp (Carassius auratus) and the suckermouth armoured catfish (Pterygoplichthys spp.) are introduced species, representing 20.7% of the total. In the upper area, introduced species reached high catch rates, having the carps the highest capture rate. Although these species are a fundamental part of fisheries in the Usumacinta, its effects on the ecosystem should be analyzed, especially species with high abundances and no importance as the suckermouth armored catfish.

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          Most cited references35

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          The Strucplot Framework: Visualizing Multi-way Contingency Tables withvcd

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            Redescription of Pterygoplichthys punctatus and description of a new species of Pterygoplichthys (Siluriformes: Loricariidae)

            Pterygoplichthys punctatus and P. weberi, new species, are unique among hypostomines in having a medially divided buccal papilla. The two species can be separated from one another by color (small spots in P. punctatus, large in P. weberi), condition of the buccal papilla (deeply divided at all ages in P. punctatus vs. shallowly divided in adults of P. weberi), condition of the lateral keel odontodes (fairly short and directed posteriorly in P. punctatus vs. large and directed almost laterally in P. weberi), and body width (SL/cleithral width 3.6-4.0 in P. punctatus vs. 3.3-3.4 in P. weberi). Pterygoplichthys punctatus is known from the rio Madeira drainage and the rio Urubu of Brazil and has published, but unconfirmed localities in the rio Purus and rio Tocantins basin, and P. weberi is known from the Río Marañon, Río Ucayali, and upper Río Amazonas drainages of Colombia, Ecuador, and Peru. Pterygoplichthys punctatus e P. weberi, espécie nova, são únicos entre os hipostomíneos por possuirem uma papila bucal dividida medialmente. As duas espécies podem ser separadas entre si pela coloração (pequenos pontos em P. punctatus, pontos grandes em P. weberi), condição da papila bucal (profundamente dividida em jovens e adultos de P. punctatus vs. dividida superficialmente em adultos de P. weberi), condição da quilha de odontódios laterais (pequena e dirigida posteriormente em P. punctatus vs. grande e dirigida quase lateralmente em P. weberi), e largura do corpo (comprimento padrão/largura no cleitro 3.6-4.0 em P. punctatus vs. 3.3-3.4 em P. weberi). Pterygoplichthys punctatus é conhecida da drenagem do rio Madeira e do rio Urubu no Brasil and tem sido citada, porém sem confirmação, para localidades nas bacias dos rio Purus e Tocantins, e P. weberi é conhecida do río Marañon, río Ucayali, e drenagens do alto río Amazonas na Colômbia, Ecuador e Peru.
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              AMAZON SAILFIN CATFISH, PTERYGOPLICHTHYS PARDALIS (CASTELNAU, 1855) (LORICARIIDAE), ANOTHER EXOTIC SPECIES ESTABLISHED IN SOUTHEASTERN MEXICO

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rmbiodiv
                Revista mexicana de biodiversidad
                Rev. Mex. Biodiv.
                Instituto de Biología (México, DF, Mexico )
                1870-3453
                2007-8706
                2018
                : 89
                : suppl dic
                : 131-146
                Affiliations
                [2] Villahermosa orgnameUniversidad Juárez Autónoma de Tabasco orgdiv1División Académica de Ciencias Biológicas Mexico
                [1] Villahermosa Tabasco orgnameEl Colegio de la Frontera Sur orgdiv1Unidad Villahermosa Mexico
                [3] Lerma Campeche orgnameEl Colegio de la Frontera Sur orgdiv1Unidad Campeche Mexico
                [4] San Cristóbal de las Casas Chiapas orgnameEl Colegio de la Frontera Sur orgdiv1Unidad San Cristóbal de la Casas Mexico
                Article
                S1870-34532018000400131
                10.22201/ib.20078706e.2018.4.2182
                ebfd679b-e275-4cbc-87f9-1fab26f46bf6

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 13 March 2017
                : 06 February 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 66, Pages: 16
                Product

                SciELO Mexico

                Categories
                Suplemento del Usumacinta

                Pesca,Especies invasoras,Cyprinidae,Loricariidae,Conectividad,Fishery,Invasive species,Connectivity

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