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Occurrence of live Asian swamp eels in live food markets in USA derived from 2001-2018 surveys


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Nico, L.G., Ropicki, A.J., Kilian, J.V., and Harper, M., 2019, Occurrence of live Asian swamp eels in live food markets in USA derived from 2001-2018 surveys: U.S. Geological Survey data release,


The dataset consists of information on the occurrence of Asian swamp eels in live food markets. The data are from original surveys conducted by Leo G. Nico and colleagues. The surveys were conducted across the USA over the period 2001 to 2018. The dataset includes summary data on the numbers of markets surveyed each year, numbers and names of cities/metropolitan areas where surveys were conducted, and numbers of markets with and without live swamp eels.


Point of Contact :
Leo G Nico
Originator :
Leo G Nico, Jay V. Kilian, Andrew J. Ropicki, Matthew Harper
Metadata Contact :
Leo G Nico
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Wetland and Aquatic Research Center
USGS Mission Area :

Attached Files

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Market Eel Data for Data Release_10Sept2018_REV 19Sept2018.csv 2.49 KB text/csv


The Asian swamp eel is considered an invasive species. The data were collected in order to provide basic information for the evaluation of swamp eels in the live food trade and the role of the international live food trade as pathway of invasion. The data improves our understanding of a poorly studied introduction pathway. The data and resulting analysis are expected to provide useful information to agency natural resource managers and others interested in invasive species and pathways of introduction of aquatic non-native species.



  • USGS Data Release Products
  • USGS Wetland and Aquatic Research Center


Harvest Set
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DOI doi:10.5066/P9XFQVFD

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