DJFMP | R Documentation |
US Fish and Wildlife Service Delta Juvenile Fish Monitoring Program data.
DJFMP
a tibble with 2,248,199 rows and 19 variables
Name of source dataset.
Station where sample was collected.
Latitude (decimal degrees).
Longitude (decimal degrees).
Date sample was collected.
Date and time sample was collected.
Bottom depth (m).
Unique sample identifier.
Sampling method (Otter Trawl or Midwater Trawl).
Surface salinity.
Surface temperature in °C.
Turbidity (NTU).
Secchi depth (cm).
Volume towed (m3).
Tow direction relative to current.
Scientific name.
Fork length from tip of the snout to a point at the fork of the caudal fin (mm).
Estimated count for each sample, taxa, and length.
Why is the length NA?
Some station locations have moved over time due to shoals filling in, trees, etc. More metadata and information on methods are available here.
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