Collection trips to Devil's Hole, v4441
Page 201
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
CJJ 67-19 Carol J. James Devil's Hole, DVNM, Ash Meadows, Nye Co., Nevada. 30 November 1967 0830 - 1030 hr. C. James, C.W. Ivy, M. Armstrong. Initial Observations - Weather: dark clouds covering most of the sky. (Dry lake bed very wet along rd.) Snow on higher mountains. Wind - (above hole: 20-25 + gusts to 30 mph.) in hole: quits to =15 Air temp. above hole = 9.4°C General Condition: No algae except for small green mats which are reduced (even in age). Only a green tint on rocks. Scum very scattered & reduced (still drifts in groups). 0840 hr. - few fish on shelf Some feeding activity (at grey + lt. tan sandy area on west side of shelf, especially). Fish Play against rocks. Water level - 1.90 No planaria activity. Beetle at surface on rocks. Water temp. = 33.3°C Count 70 fish - ≥ 70% of these are juvenile and small adults. about 20 large adults. a few lt. males but not white-looking.