Collection trips to Devil's Hole, v4441
Page 149
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
take pictures - fish seemed to become more active (apparently eating the scum) that fell into the water). One fish seem to remain unmoving for several minutes - exposed in the sun and over the grey matter until disturbed by another fish. (~1430 hrs.) Fish collected by dipnetting and put into tank cage. ♂ ♀ 18 mm 18 mm 18 18 19 9 19 19 Photographs taken of these fish and others) before selection. Many of the fish died while in styrofoam cooler, even though the water was quite warm (at least 70°F) the cooler was standing on the upper shelf (in the water), and we renewed the water frequently and handled them with as much care as possible. It was, however, necessary to use a measuring board to measure fish the approx size of which seemed right to put in the cage. Even careful handling with measuring boards is a terrible shock to the fish, and has been previously, also. Note: while seining we found a Rana catenulata tadpole (~4" long) on the upper shelf.