| seasonal, interannual, and long-term variation in sport fish contamination, san francisco bay. | this study documents changes in contamination over time at seasonal, interannual, and decadal time scales for sport fish collected in san francisco bay. samples from seven fish species were prepared according to common consumption practices (muscle fillets either with or without skin) and analyzed for trace metals (mercury and selenium) and trace organochlorine contaminants (pcbs, ddts, chlordanes, and dieldrin). in 2000, sport fish samples exceeded human health screening values for mercury, pcb ... | 2005 | 15589247 |
| selenium tissue burden compartmentalization in resident white sturgeon (acipenser transmontanus) of the san francisco bay delta estuary. | high selenium (se) loads in the san francisco bay delta are bioaccumulated and biomagnified in food webs and can impair the reproduction of resident oviparous animals such as white sturgeon. the objective of the present study was to determine the se tissue burden in san francisco bay delta-resident white sturgeon to assess se bioaccumulation in different organs, including ovaries and liver where egg yolk precursor proteins are synthesized. the authors obtained 54 san francisco bay delta-resident ... | 2015 | 25319114 |
| can fatty acid and mineral compositions of sturgeon eggs distinguish between farm-raised versus wild white (acipenser transmontanus) sturgeon origins in california? preliminary report. | the objective was to investigate the potential of using fatty acid and mineral compositions of sturgeon eggs to distinguish their source, either farm-raised or wild fish. trafficking of illegally obtained wild white sturgeon eggs is a major concern to the california department of fish and game, but there is no forensic method to separate wild and farm-raised white sturgeon eggs. the extension of these findings in future work will be to use the fatty acid and mineral compositions as forensic indi ... | 2013 | 23683918 |
| 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 |
| tissue contaminant burdens in san francisco estuary white sturgeon (acipenser transmontanus): implications for population recovery. | the san francisco estuary (sfe) is heavily influenced by anthropogenic activities, including historic and chronic contaminant inputs. these contaminants can adversely affect sfe fish populations, particularly white sturgeon, because they are a benthic dwelling, long-lived species. we measured a suite of metals and organic contaminants in liver and gonad tissues of 25 male and 32 female white sturgeon as well as several physiological indicators of sturgeon health. most sturgeon (68% of males and ... | 2017 | 28528414 |