Specimen Information

Myriophyllum spicatum
Myriophyllum spicatum
(Eurasian watermilfoil)
Plants
Exotic

Specimen ID1328468
GroupPlants
GenusMyriophyllum
Speciesspicatum
Common NameEurasian watermilfoil
StateLA
CountyOrleans
Localitymouth of Bayou St. John, Lake Pontchartrain
Mapping AccuracyAccurate
HUC8 NameLake Pontchartrain
HUC8 Number08090202
HUC10 NameLake Pontchartrain
HUC10 Number0809020201
HUC12 NameLake Pontchartrain
HUC12 Number080902020100
Map
+
Collection Month1
Collection Year1997
Year AccuracyActual
Potential Pathwayhitch hiker
Statusextirpated
Reference 1
Ref. Number:29242
Author:Poirrier, M.A., B. Maglic, J.C. Francis, C.D. Franze, and H.J. Cho.
Date:2002
Title:Effects of the 1997 Bonnet Carré Spillway opening on grassbeds in Lake Pontchartrain
Publisher:United States Geological Survey
Volume:1634
Comments"Large surface mats of Cladophora and increased turbidity from blue-green algal blooms eliminated the Myriophyllum bed in Bayou St. John."
Record TypeLiterature
Freshwater/MarineFreshwater-Brackish


Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [3/4/2021].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. For queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.