This article was accepted into the corpus but its outbound wikilinks were never NER-processed — typical at the deepest BFS hop or when the run's entity cap was reached. No expansion funnel to show.
| Colossoma macropomum | |
|---|---|
| Name | Tambaqui |
| Status | NT |
| Status system | IUCN3.1 |
| Regnum | Animalia |
| Phylum | Chordata |
| Classis | Actinopterygii |
| Ordo | Characiformes |
| Familia | Serrasalmidae |
| Genus | Colossoma |
| Species | C. macropomum |
| Binomial | Colossoma macropomum |
| Binomial authority | (Cuvier, 1818) |
Colossoma macropomum is a large freshwater serrasalmid fish native to tropical South America, valued for its importance in inland fisheries, aquaculture, and Amazonian culture. It is known regionally as tambaqui or pacu and is ecologically significant in floodplain and riverine systems, contributing to seed dispersal and food webs. The species has been the subject of research across disciplines including biogeography, fisheries science, and conservation biology.
Colossoma macropomum was described by Georges Cuvier in 1818 and placed within the family Serrasalmidae, a clade related to other characiforms such as the piranhas associated with Charles Darwin's contemporaries and collections from the Amazon River basin. Taxonomic treatments reference type material from expeditions connected to institutions like the Muséum national d'Histoire naturelle and researchers affiliated with the Smithsonian Institution and Natural History Museum, London. Synonymies and historical names were influenced by explorers linked to the Royal Society and collectors serving patrons like Alexander von Humboldt and José Bonifácio de Andrada. Modern systematics integrates morphological work published in journals tied to the Linnean Society of London and molecular studies deposited in databases curated by the GenBank consortium and analyzed using methods promoted by the American Fisheries Society.
Adults reach substantial sizes, with recorded specimens comparable to notable specimens catalogued by museums such as the American Museum of Natural History and the British Museum (Natural History). Diagnostic characters have been described in monographs associated with the International Union for Conservation of Nature assessments and by ichthyologists working at the University of São Paulo and Federal University of Amazonas. Identification keys used by agencies like the Food and Agriculture Organization rely on meristic counts and morphological traits recorded in field guides distributed by the World Wildlife Fund and authors publishing with the Oxford University Press. Comparative anatomy discussions reference works from the Royal Society of London and morphological datasets housed by the Natural History Museum, Paris.
The species inhabits major basins including the Amazon River, Orinoco River, and rivers of the Guianas, with presence documented in watersheds surveyed by teams from the National Institute of Amazonian Research and international collaborations with institutions such as the University of Cambridge and Max Planck Society. Its floodplain, whitewater, and blackwater habitats overlap with protected areas like Jaú National Park and research stations linked to the Brazilian Institute of Environment and Renewable Natural Resources. Range mappings are referenced in conservation assessments produced with contributions from organizations including the IUCN and regional governments such as the Government of Brazil and the Government of Peru.
Colossoma macropomum plays a keystone role in tropical riverine ecosystems studied by ecologists affiliated with the Smithsonian Tropical Research Institute and the Yale School of Forestry & Environmental Studies. Its frugivory and seed dispersal behaviors have been highlighted in fieldwork connected to researchers from the University of Oxford and the University of California, Berkeley, informing landscape-scale studies with collaborators from the World Bank and Conservation International. Trophic interactions involve predators catalogued by the National Geographic Society and prey dynamics analyzed alongside research on sympatric taxa monitored by the Amazon Biodiversity Center and datasets curated at the Natural History Museum, London.
Spawning migrations and reproductive timing have been characterized by studies conducted with support from agencies such as the European Union research programs and national science foundations including the São Paulo Research Foundation. Lifecycle studies reference tagging and telemetry projects operated by teams at the University of British Columbia and the Federal University of Pará, and reproductive ecology has been compared with patterns reported for other Neotropical fishes in publications of the Journal of Fish Biology and reports coordinated by the Food and Agriculture Organization. Larval development and nursery habitat importance are part of management plans assembled by regional fisheries departments like those of the Government of Colombia and the Government of Venezuela.
The species supports artisanal and commercial fisheries monitored by the Brazilian Institute of Environment and Renewable Natural Resources and exported in markets linked to trade networks involving the Mercosur and partnerships with companies registered with the World Trade Organization. Aquaculture initiatives have been developed by research centers such as the Embrapa system and universities like the Federal University of Santa Catarina, with production protocols disseminated through capacities built by the FAO and technical cooperation with the Inter-American Development Bank. Cultural significance is documented in ethnographic studies coordinated with museums like the Museu Paraense Emílio Goeldi and indigenous organizations represented at forums including the United Nations Permanent Forum on Indigenous Issues.
Assessments by the IUCN list population trends impacted by overfishing, hydrological alterations from projects linked to entities like the Itaipu consortium and dam builders operating under policies of national ministries such as the Ministry of Mines and Energy (Brazil). Habitat loss and fragmentation associated with infrastructure schemes commissioned by governments including the Government of Peru and international financiers such as the World Bank pose threats recognized in reports co-authored with groups like WWF and The Nature Conservancy. Conservation responses involve protected area management guided by the Convention on Biological Diversity and regional agreements negotiated within the Amazon Cooperation Treaty Organization and through collaborations with universities such as the University of São Paulo.
Category:Serrasalmidae Category:Fish of South America Category:Taxa named by Georges Cuvier