Najas marina
Najas marina
(holly-leaf waternymph)
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Native Transplant
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6 results for Najas marina (holly-leaf waternymph)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1895764 CAAlamedaLake Chabot; Castro Valley, 17936 Lake Chabot Road2016 18050004 San Francisco Bay 
1895768 CAAlamedaSan Francisco Bay Area; Del Valle Reservoir in Livermore2001 18050004 San Francisco Bay 
1895771 CAAlamedaSan Francisco Bay Area; Pond in Del Valle Park, 7000 Del Valle Rd, Livermore2003 18050004 San Francisco Bay 
1895770 CAAlamedaSan Francisco Bay Area; Quarry Lakes Park on Ishewood Rd in Fremont2001 18050004 San Francisco Bay 
1895769 CAAlamedaSan Francisco Bay Area; Shadow Cliff Lake in Pleasanton2001 18050004 San Francisco Bay 
1895808 CAAlamedaUpper end of Lake Del Valle south of Livermore1990 18050004 San Francisco Bay 

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are 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 data.

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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. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/19/2025].

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For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.