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Biogeochemical water type influences community composition, species richness, and biomass in megadiverse Amazonian fish assemblages.
Bogotá-Gregory, Juan David; Lima, Flávio C T; Correa, Sandra B; Silva-Oliveira, Cárlison; Jenkins, David G; Ribeiro, Frank R; Lovejoy, Nathan R; Reis, Roberto E; Crampton, William G R.
Afiliación
  • Bogotá-Gregory JD; Department of Biology, University of Central Florida, 4100 Libra Dr, Orlando, FL, 32816, USA.
  • Lima FCT; Museu de Zoologia da Universidade Estadual de Campinas, Cidade Universitária, Campinas, São Paulo, 13083-863, Brazil.
  • Correa SB; Department of Wildlife, Fisheries and Aquaculture, Mississippi State University, Box 9680, Starkville, MS, 39762, USA.
  • Silva-Oliveira C; Instituto Nacional de Pesquisas da Amazonia, Coleção de Peixes, Av. André Araújo, 2936, Petrópolis, Manaus, Amazonas, 69.067-375, Brazil.
  • Jenkins DG; Department of Biology, University of Central Florida, 4100 Libra Dr, Orlando, FL, 32816, USA.
  • Ribeiro FR; Coleção Ictiológica da Universidade Federal do Oeste do Pará. Campus Amazônia, Avenida Mendonça Furtado, 2946, Fátima, Santarém, Pará, CEP 68040-470, Brazil.
  • Lovejoy NR; Department of Biological Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON, M1C 1A4, Canada.
  • Reis RE; Pontifícia Universidade Católica do Rio Grande do Sul, Avenida Ipiranga 6681, Porto Alegre, Rio Grande do Sul, 90619-900, Brazil.
  • Crampton WGR; Department of Biology, University of Central Florida, 4100 Libra Dr, Orlando, FL, 32816, USA. crampton@ucf.edu.
Sci Rep ; 10(1): 15349, 2020 09 18.
Article en En | MEDLINE | ID: mdl-32948815
Amazonian waters are classified into three biogeochemical categories by dissolved nutrient content, sediment type, transparency, and acidity-all important predictors of autochthonous and allochthonous primary production (PP): (1) nutrient-poor, low-sediment, high-transparency, humic-stained, acidic blackwaters; (2) nutrient-poor, low-sediment, high-transparency, neutral clearwaters; (3) nutrient-rich, low-transparency, alluvial sediment-laden, neutral whitewaters. The classification, first proposed by Alfred Russel Wallace in 1853, is well supported but its effects on fish are poorly understood. To investigate how Amazonian fish community composition and species richness are influenced by water type, we conducted quantitative year-round sampling of floodplain lake and river-margin habitats at a locality where all three water types co-occur. We sampled 22,398 fish from 310 species. Community composition was influenced more by water type than habitat. Whitewater communities were distinct from those of blackwaters and clearwaters, with community structure correlated strongly to conductivity and turbidity. Mean per-sampling event species richness and biomass were significantly higher in nutrient-rich whitewater floodplain lakes than in oligotrophic blackwater and clearwater river-floodplain systems and light-limited whitewater rivers. Our study provides novel insights into the influences of biogeochemical water type and ecosystem productivity on Earth's most diverse aquatic vertebrate fauna and highlights the importance of including multiple water types in conservation planning.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ecosistema / Peces / Agua Dulce Límite: Animals País/Región como asunto: America do sul / Brasil Idioma: En Revista: Sci Rep Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ecosistema / Peces / Agua Dulce Límite: Animals País/Región como asunto: America do sul / Brasil Idioma: En Revista: Sci Rep Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido