Scientific Investigations Report 2006–5225

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5225

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Table 4. Capture data and Ives Island water elevations associated with free embryo and larval white sturgeon captured near Ives Island.

[Stage: numbers of specimens of each stage collected are in parentheses. Ives Island water elevation:Capture, water elevation at time of capture; Minimum, minimum water elevation recorded within 24 hours post-capture; Difference, maximum decrease in water elevation within 24 hours post-capture. Depth:Capture, water depth measured at time of capture; Minimum, water depth at each site within 24 hours post-capture]

Stage Capture   Ives Island water elevation (meters)   Depth (meters)
Site Date Time Capture Minimum Difference Capture Minimum
Free embryo (4) 22 06-08-2005 14:25 4.36 4.29 0.07 0.31 0.24
Free embryo (1) 31 06-09-2005 13:07 4.86 4.55 .31 .70 .39
Free embryo (1) 32 06-09-2005 13:07 4.86 4.55 .31 .37 .06
Larva (1) 47 06-14-2005 13:25 4.57 3.88 .69 .59 -.10

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