Specimen Information

Blackfordia virginica
Blackfordia virginica
(Black Sea jellyfish)
Coelenterates-Hydrozoans
Exotic

Specimen ID1808
GroupCoelenterates-Hydrozoans
GenusBlackfordia
Speciesvirginica
Common NameBlack Sea jellyfish
StateCA
CountyNapa-Solano
LocalityNapa River
Mapping AccuracyApproximate
HUC8 NameSan Pablo Bay
HUC8 Number18050002
Map
+
Collection Day30
Collection Month9
Collection Year1970
Year AccuracyActual
Potential Pathwayshipping ballast water
Statusestablished
Reference 1
Ref. Number:1383
Author:Mills, C.E., and F. Sommer
Date:1995
Title:Invertebrate introductions in marine habitats: two species of hydromedusae (Cnidaria) native to the Black Sea, Maeotias inexspectata and Blackfordia virginica, invade San Francisco Bay.
Journal:Marine Biology
Volume:122
Pages:279-288
CommentsMisidentified as Phialidium sp. Indicates this species may have been in the bay since 1970 and overlooked.
Record TypeLiterature
DisposalCAS(to be assessioned)
Freshwater/MarineFreshwater-Marine
Number Collected150-200
Year Classmedusae


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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. [2020]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [9/23/2020].

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