Common name: a copepod
Size: Less than 1 mm in length.
Native Range: Brazil, South America (Karaytug and Boxshall, 1998).
Hydrologic Unit Codes (HUCs) Explained
Puerto Rico &
Interactive maps: Point Distribution Maps
Several dozen specimens were collected from the leaf cup of a bromeliad plant in 2005 at Key Colony Beach on Shelter Key in Florida (Reid and Hribar, 2006).
Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Paracyclops bromeliacola are found here.
Table last updated 12/2/2023
† Populations may not be currently present.
Ecology: This copepod is found in freshwater to oligohaline lakes, streams, and wetlands (Hribar and Reid, 2008).
Reproduction is sexual with 6 nauplius and 5 copepodid stages to adulthood, females can carry several egg sacs containing 8–36 eggs total, generation time is about 3–4 weeks, and continuous reproduction is year round (Karaytug and Boxshall, 1998).
Means of Introduction: The origins are unknown but it is highly likely it came to the United States through the ornamental plant trade (Hribar and Reid, 2008).
Impact of Introduction: The impacts of this species are currently unknown, as no studies have been done to determine how it has affected ecosystems in the invaded range. The absence of data does not equate to lack of effects. It does, however, mean that research is required to evaluate effects before conclusions can be made.
References: (click for full references)
Hribar, L.J., and Reid, J.W., 2008, New records of copepods (Crustacea) from the Florida Keys: Southeastern Naturalist, v. 7, no. 2, p. 219—228.
Karaytug, S., and Boxshall, G.A. 1998. Partial revision of Paracyclops Claus, 1893 (Copepoda, Cyclopoida, Cyclopidae) with descriptions of four new species. Bulletin of the Natural History Museum of London (Zoology) 64:111—205.
Micieli, M.V., Garcia, J.J., and Becnel, J.J., 2000, Life cycle and description of Amblyospora camposi n. sp. (Microsproidia: Amblyosporidae) in the mosquito Culex renatoi (Diptera, Cluicidae) and copepod Paracyclops fimbriatus fimbriatus (Copepoda, Cyclopidae): Journal of Eukaryot Microbiology, v. 47, no. 6, p. 575-580.
Reid, J.W., and Hribar, L.J. 2006. Records of some Copepoda (Crustacea) from the Florida Keys. Proceedings of the National Academy of Sciences of Philadelphia 155:1—7.
Revision Date: 4/30/2018
Benson, A.J., 2023, Paracyclops bromeliacola: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=2791, Revision Date: 4/30/2018, Access Date: 12/2/2023
This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.