Abstract
Observations on distribution, water quality, habitat and avoidance behavior are presented for Eubranchipus bundyi, Eubranchipus oregonus, and Eubranchipus serratus (Chirocephalidae) in California, USA. All three species were previously known within California from single localities. Two new localities for E. oregonus in Tuolumne County and in Humbolt County and 21 new localities for E. serratus in Lassen and Shasta Counties are presented. The E. oregonus localities represent substantial range extensions within California, while the E. serratus localities show a large number of populations within the surveyed area. In occupied pools, pH ranged from 5.5to 9.0, conductivity from 30 to 150 µS, turbidity (NTU) from 0.8 to140.0 and total alkalinity from 68 to 128 mg l−1. Pool size varied from small seasonal pools of a few meters in diameter to large seasonal lakes several kilometers across. Limited survey effort and successful "predator" avoidance by the shrimp may have contributed to the lack of distributional information for these species in California.
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Hill, R.E., Rogers, D.C., Quelvog, B.D. et al. New records and observations on the anostracan genus Eubranchipus in California. Hydrobiologia 359, 75–81 (1997). https://doi.org/10.1023/A:1003162810822
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DOI: https://doi.org/10.1023/A:1003162810822