| impact of nutrition and salinity changes on biological performances of green and white sturgeon. | green and white sturgeon are species of high conservational and economic interest, particularly in the san francisco bay delta (sfbd) for which significant climate change-derived alterations in salinity and nutritional patterns are forecasted. although there is paucity of information, it is critical to test the network of biological responses underlying the capacity of animals to tolerate current environmental changes. through nutrition and salinity challenges, climate change will likely have mo ... | 2015 | 25830227 |
| unscreened water-diversion pipes pose an entrainment risk to the threatened green sturgeon, acipenser medirostris. | over 3,300 unscreened agricultural water diversion pipes line the levees and riverbanks of the sacramento river (california) watershed, where the threatened southern distinct population segment of green sturgeon, acipenser medirostris, spawn. the number of sturgeon drawn into (entrained) and killed by these pipes is greatly unknown. we examined avoidance behaviors and entrainment susceptibility of juvenile green sturgeon (35±0.6 cm mean fork length) to entrainment in a large (>500-kl) outdoor fl ... | 2014 | 24454967 |
| the physiological responses of green sturgeon (acipenser medirostris) to potential global climate change stressors. | the green sturgeon (acipenser medirostris) is an anadromous species with a distinct population segment in the san francisco bay-sacramento river delta that is currently listed as threatened. although this species is able to tolerate salinity challenges as soon as 6 mo posthatch, its ability to deal with unpredictable salinity fluctuations remains unknown. global climate change is predicted to result in large freshwater (fw) flushes through the estuary during winter and greater tidal influence du ... | 2014 | 24769709 |
| detection of adult green sturgeon using environmental dna analysis. | environmental dna (edna) is an emerging sampling method that has been used successfully for detection of rare aquatic species. the identification of sampling tools that are less stressful for target organisms has become increasingly important for rare and endangered species. a decline in abundance of the southern distinct population segment (dps) of north american green sturgeon located in california's central valley has led to its listing as threatened under the federal endangered species act i ... | 2016 | 27096433 |
| chinook salmon and green sturgeon migrate through san francisco estuary despite large distortions in the local magnetic field produced by bridges. | empirical evidence exists that some marine animals perceive and orient to local distortions in the earth's main static geomagnetic field. the magnetic fields produced by undersea electric power cables that carry electricity from hydrokinetic energy sources to shore-based power stations may produce similar local distortions in the earth's main field. concerns exist that animals migrating along the continental shelves might orient to the magnetic field from the cables, and move either inshore or o ... | 2017 | 28575021 |
| modeling magnetic fields from a dc power cable buried beneath san francisco bay based on empirical measurements. | the trans bay cable (tbc) is a ±200-kilovolt (kv), 400 mw 85-km long high voltage direct current (dc) buried transmission line linking pittsburg, ca with san francisco, ca (sf) beneath the san francisco estuary. the tbc runs parallel to the migratory route of various marine species, including green sturgeon, chinook salmon, and steelhead trout. in july and august 2014, an extensive series of magnetic field measurements were taken using a pair of submerged geometrics magnetometers towed behind a ... | 2016 | 26915084 |