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5 résultats pour : sampling invertebrates

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USGS Sediment Sampling at Henderson Beach State Park in Florida ca. 2010
UMG22A39_354

USGS Sediment Sampling at Henderson Beach State Pa...

USGS Setting up at Sampling at Orange Beach, Alabama ca. 2010
UMG22A39_347

USGS Setting up at Sampling at Orange Beach, Alaba...

USGS Sampling Site at Henderson Beach State Park ca. October 2010
UMG22A39_353

USGS Sampling Site at Henderson Beach State Park c...

USGS Water-Quality Sampling at St. Marks National Wildlife Refuge ca. 2010
UMG22A39_349

USGS Water-Quality Sampling at St. Marks National ...

Sorting through invertebrates from a north slope lake of Alaska ca. July 2010
UMG22A39_361

Sorting through invertebrates from a north slope l...