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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Blakeslee, Carrie J. Galbraith, Heather S. Robertson, Laura S. St John White, Barbara |
| Description | Country affiliation: United States Author Affiliation: Blakeslee CJ ( US Geological Survey Leetown Science Center, Northern Appalachian Research Laboratory, Wellsboro, Pennsylvania, USA.) |
| Abstract | There is growing concern over the effects of increased salinization on freshwater organisms, which are largely unknown for unionid mussels. Adult and larval Elliptio complanata were exposed to low-level salt concentrations to determine the effects on mussel survival, physiology, and reproduction. Adults were exposed to salt concentrations of 0 parts per thousand (ppt), 2 ppt, 4 ppt, and 6 ppt NaCl and monitored over 7 d for mortality. Treatment groups exposed to 6 ppt and 4 ppt experienced 50% mortality at day 3 and day 4, respectively, with complete mortality by day 7. No mortality was observed in the other treatments. Adults were also exposed to sublethal salinity levels of 1 ppt and 2 ppt NaCl for 4 wk to determine physiological consequences of prolonged salinity exposure. Mussels exposed to 1 ppt and 2 ppt experienced reduced metabolic rates within the first 24 h of exposure that recovered to control levels in the 1-ppt treatment within 7 d. Metabolic recovery did not occur in the 2-ppt treatment by the end of 28 d. Glochidia exposed to 3-ppt NaCl during attachment to their host fish suffered a reduction in attachment success and metamorphosis, resulting in a 10-fold reduction in the number of juveniles produced per host fish. The present study demonstrates that low levels of salt can have a dramatic effect on the reproduction, physiology, and survival of freshwater mussels. |
| File Format | HTM / HTML |
| ISSN | 07307268 |
| Issue Number | 12 |
| Volume Number | 32 |
| e-ISSN | 15528618 |
| Journal | Environmental Toxicology and Chemistry |
| Language | English |
| Publisher | Wiley |
| Publisher Date | 2013-12-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Research Support, U.s. Gov't, Non-p.h.s. Research Support, Non-u.s. Gov't Sodium Chloride Toxicity Discipline Environmental Health Discipline Toxicology Anguilla Metabolism Drug Effects Journal Article Salinity Metamorphosis, Biological Reproduction Animals Larva Discipline Chemistry Fresh Water Unionidae |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis |
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