|
 Sampling
Period: February 12 - February 25, 2007
Hatfield State Park:
Zero Chinook salmon were
collected during this sampling period. However,
some non-target species were collected including: golden
shiner,
bluegill sunfish, largemouth bass, and prickly sculpin
(Figure 1).
Figure 1.
Largemouth bass (FL: 52 mm) captured
on February 15th.
Zero O. mykiss
were collected during this
sample period.
No trap
efficiency tests were conducted during this sampling period.
Environmental
Data:
Instantaneous water
temperature measured at the Hatfield rotary screw trap
ranged from 52.0°F to 56.0°F. Instantaneous turbidity
measured at Hatfield rotary screw trap ranged from 1.6 NTU
to 84.5 NTU. During the sampling period flows, at Snelling (MSN; RM
46) ranged from 266 cfs to 281 cfs and at Cressy (CRS; RM
27) from 185 cfs to 320 cfs. Hourly flows in Dry Creek
(DSN confluence; RM 31.5), which is a significant tributary
to the Merced River, was 150 cfs on February 12th and ranged
between 41 cfs and 81 cfs during the rest of the sampling
period. |
