Specimen Information

Cordylophora caspia
Cordylophora caspia
(a freshwater hydroid)
Coelenterates-Hydrozoans
Exotic

Specimen ID1826
GroupCoelenterates-Hydrozoans
GenusCordylophora
Speciescaspia
Common Namea freshwater hydroid
StateCA
CountySan Francisco
LocalityLake Merced (San Francisco water supply)
Mapping AccuracyAccurate
HUC8 NameSan Francisco Coastal South
HUC8 Number18050006
HUC10 NameSan Gregorio Creek-Frontal Pacific Ocean
HUC10 Number1805000602
HUC12 NameSan Pedro Creek-Frontal Pacific Ocean
HUC12 Number180500060204
Map
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Collection Year1958
Year AccuracyActual
Potential Pathwayshipping ballast water | shipping hull fouling
Statusestablished
Reference 1
Ref. Number:10319
Author:Cohen, A.N., and J.T. Carlton.
Date:1995
Title:Nonindigenous Aquatic Species in a United States Estuary, A Case Study of the Biological Invasions of the San Francisco Bay and Delta.
Journal:Report for USFWS, WA DC, and Connecticut Sea Grant
Publisher:A report for the United States Fish and Wildlife Service, Washington, DC and The National Sea Grant College Program Connecticut Sea Grant.
Pages:246 pp
Reference 2
Ref. Number:9188
Author:Miller, R.C.
Date:1958
Title:The relict fauna of Lake Merced, San Francisco.
Journal:Journal of Marine Research
Volume:17
Pages:375-382
CommentsYear is publication date of source document.
Record TypeLiterature
Freshwater/MarineFreshwater


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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. [2019]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [9/22/2019].

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