Common name: Marquesan grouper
available through www.itis.gov
Identification: Heemstra and Randall (1993).
Size: 27.7 cm SL; max.weight: 770.0 g.
Native Range: Pacific Ocean: known only from the Marquesas Is. and one specimen from Minami Tori Shima, Marcus Is., Japan (although this report may be erroneous) (Heemstra and Randall 1993).
Hydrologic Unit Codes (HUCs) Explained
Puerto Rico &
Interactive maps: Point Distribution Maps
In 1958, 22 fish from the Marquesas were introduced into marine waters off the island of Oahu, Hawaii, in 1958 (Maciolek 1984).
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 Epinephelus irroratus are found here.
Table last updated 5/25/2018
† Populations may not be currently present.
Means of Introduction: Intentionally stocked.
Status: The species failed to become established (Maciolek 1984).
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)
Heemstra, P.C. and J.E. Randall. 1993. FAO Species Catalogue Vol. 16. Groupers of the World (Family Serranidae, Subfamily Epinephelinae). An annotated and illustrated catalogue of the grouper, rockcod, hind, coral grouper and lyretail species known to date. FAO Fisheries Synopsis, No. 125, Vol. 16. Rome, FAO 382 pp.
Revision Date: 4/20/2018
Peer Review Date: 4/1/2016
Fuller, P., 2019, Epinephelus irroratus (Forster in Bloch and Schneider, 1801): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=970, Revision Date: 4/20/2018, Peer Review Date: 4/1/2016, Access Date: 7/19/2019
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.