Regularity: Regularly occurring
Type of Residency: Year-round
Habitat and Ecology
Molecular Biology and Genetics
Barcode data: Macrobrachium carcinus
Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.
See the BOLD taxonomy browser for more complete information about this specimen and other sequences.
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Download FASTA File
Statistics of barcoding coverage: Macrobrachium carcinus
Public Records: 6
Specimens with Barcodes: 7
Species With Barcodes: 1
IUCN Red List Assessment
Red List Category
Red List Criteria
National NatureServe Conservation Status
Rounded National Status Rank: NNR - Unranked
NatureServe Conservation Status
Rounded Global Status Rank: GNR - Not Yet Ranked
Macrobrachium carcinus is a species of freshwater shrimp native to streams, rivers and creeks from Florida to southern Brazil. It is the largest known species of Neotropical freshwater prawn, growing up to 30 centimetres (12 in) long and weighing as much as 850 grams (30 oz),  although even larger specimens have been reported. It is an important species for commercial fishing in the Sao Francisco area, where it is known by the local name of pitu. M. carcinus is omnivorous, with a diet consisting of molluscs, small fish, algae, leaf litter and insects.
- Cumberlidge, N. & Smith, K. (2013). "Macrobrachium carcinus". IUCN Red List of Threatened Species. Version 2014.3. International Union for Conservation of Nature. Retrieved 18 February 2015.
- Charles Fransen (2012). "Macrobrachium carcinus (Linnaeus, 1758)". World Register of Marine Species. Retrieved 1 June 2012.
- "Macrobrachium carcinus Bigclaw River Shrimp". Encyclopedia of Life. Retrieved 1 June 2012.
- Methil Narayanan Kutty & Wagner C. Valenti (2009). "Culture of other freshwater prawn species". In Michael Bernard New, Wagner Cotroni Valenti & James H. Tidwell, Louis R. D'Abramo & Methil Narayanan Kutty. Freshwater Prawns: Biology and Farming. John Wiley & Sons. pp. 502–523. ISBN 978-1-4051-4861-0.
- Field & Stream. June 1998. p. 78. ISSN 8755-8599. Retrieved 1 June 2012.
- Joachim Carolsfeld (1 November 2003). Migratory Fishes of South America: Biology, Fisheries and Conservation Status. IDRC. p. 218. ISBN 978-0-9683958-2-0. Retrieved 1 June 2012.
- Douglas P. Reagan (1 September 1996). The Food Web of a Tropical Rain Forest. University of Chicago Press. p. 452. ISBN 978-0-226-70599-6. Retrieved 1 June 2012.
- Jerry G. Walls (1 April 2009). Crawfishes of Louisiana. LSU Press. p. 220. ISBN 978-0-8071-3409-2. Retrieved 1 June 2012.
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