Collection trips to Devil's Hole, v4441
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Transcription
C99 62-4 Slight schooling of fish noted (as previously). No free activity. Beetles dispersed. Scum present. Left 1130 hr Water level - 1.91 at approx. 1100 hr. 2110 - 2315 hr. Hubbs, Miller, Deacon, James, Don Johnson, Elena Arnold. Returned and used dip nets again to capture as many individuals as possible. Dip netted an unknown number of fish - again a preponder- ance of young. These were put into two newly made capture-traps and left on the shelf. Check other capture-traps and fish appeared healthy. (These traps were placed in the lower shelf area whereas the new ones were placed on the upper shelf.) 1 July 1967 0225 - 0400 hr. Dr. Deacon, Mrs. Miller, & I removed another 137 individuals with dip nets. Adults more numerous than previously. Many very small (5-8 mm) fish were seen and captured. All 137 fish were placed in one of the two capture-cages used for those captured from 2110 - 2315 (30 June). 0700 - 1000 hr. Hubbs, Miller, Deacon, James. Count & Measure Fish. Dr. Hubbs noted 23 individuals on the upper shelf when we