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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ozersky, Ted Barton, David R. Hecky, Robert E. Guildford, Stephanie J. |
| Copyright Year | 2013 |
| Abstract | Dreissenid mussels are notorious invasive organisms whose establishment is associated with large, ecosystem-scale changes to patterns of productivity in aquatic systems. We investigated how localized impacts of dreissenids affect the potential of littoral substrates to support primary and secondary production using in situ incubations and comparisons of natural mussel-colonized and mussel-free substrates in the littoral zone of a large, shallow lake. We compared dreissenid-colonized and dreissenid-free substrates in terms of nutrient balance, surface area, periphyton loads as well as benthic primary production and respiration rates. Dreissenid-colonized substrates acted as sources of dissolved nutrients to the water column, with mussel mass-specific rates of dissolved phosphorus and ammonia excretion averaging 7.2 ± 5.6 (mean ± SD), and 92.6 ± 64.7 μg/g mussel shell free dry mass/h, respectively. Mussel-colonized substrates also had higher surface area, and supported approximately double the amount of periphyton and organic matter loads compared to mussel-free substrates, as well as having higher rates of primary production and community respiration. We suggest that the localized effects of dreissenids can play an important role in changing whole-ecosystem production patterns, with the extent of dreissenid impacts strongly dependent on lake size and morphometry. |
| Starting Page | 2799 |
| Ending Page | 2810 |
| Page Count | 12 |
| File Format | |
| ISSN | 13873547 |
| Journal | Biological Invasions |
| Volume Number | 15 |
| Issue Number | 12 |
| e-ISSN | 15731464 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2013-05-17 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Invasive bivalves Dreissenid mussels Benthic–pelagic coupling Nearshore shunt Nutrient cycling Ecology Freshwater & Marine Ecology Plant Sciences Developmental Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Ecology, Evolution, Behavior and Systematics |
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