Acipenser fulvescens, the lake sturgeon, belongs to one of the few extant non-teleost ray-finned (bony) fishes. The sturgeons (family Acipenseridae) have a phylogenetic history that dates back about 250 million years. The study reported here is the first investigation of peripheral coding strategies for spectral analysis in the auditory system in a non-teleost bony fish. We used a shaker system...

Standardization of fertilization protocols for sterlet Acipenser ruthenus is crucial for improving reproductive techniques and for conservation purposes. Our objectives were to determine the number of sperm (tested 430,000:1, 43,000:1, 4300:1, 430:1 sperm to egg) required to fertilize eggs and explore how pre-incubation of eggs in freshwater for 0min, 0.5min, 1min, and 10min interacts with diff...

A rapid quantitative method of ultra performance liquid chromatography (UPLC) has been developed for the analysis of 17 amino acids in fish eggs from Acipenser schrenckii, Huso dauricus and Acipenser ruthenus. The analytes were hydrolyzed with 6 0 mol/L HCI. The extraction solution was concentrated under low pressure and neutralized with NaOH solution before derivatization with 6-aminoquinolyl-...

a Bay Area Environmental Research Institute (BAERI)/NASA Ames Research Center, Moffett Field, CA 94035, USA b Biospheric Science Branch, NASA Ames Research Center, Moffett Field, CA 94035, USA c Department of Watershed Science, Utah State University, UT 84322, USA d Department of Science and Environmental Policy, California State University at Monterey Bay/NASA Ames Research Center, Moffett Fie...

a Ocean Sciences Department, 1156 High Street, University of California Santa Cruz, Santa Cruz, CA, USA b ORAU/NASA Ames Research Center, M.S. 245-4, Bldg. 245, Rm. 120, PO Box 1, Moffett Field, CA 94035, USA c Department of Atmospheric, Ocean, and Space Sciences, University of Michigan, USA d Applied Math and Computer Science, Emory University, Atlanta, GA, USA e Earth Science Division, NASA A...

R. R. Rogers, J. W. Hair, C. A. Hostetler, R. A. Ferrare, M. D. Obland, A. L. Cook, D. B. Harper, S. P. Burton, Y. Shinozuka, C. S. McNaughton, A. D. Clarke, J. Redemann, P. B. Russell, J. M. Livingston, and L. I. Kleinman NASA Langley Research Center, Hampton, VA, USA SSAI/NASA Langley Research Center, Hampton, VA, USA University of Hawaii, Dept. of Oceanography, Honolulu, HI, USA BAERI/NASA A...

Many hydroelectric dams have been in place for 50 - >100 years, which for most fish species means that enough generations have passed for fragmentation induced divergence to have accumulated. However, for long-lived species such as Lake Sturgeon, Acipenser fulvescens, it should be possible to discriminate between historical population structuring and contemporary gene flow and improve the broad...