Dreissena in Lake Ontario 30 years post-invasion
| Autor: | James M. Watkins, Molly Wick, Lars G. Rudstam, Ashley K. Elgin, Knut Mehler, Alexander Y. Karatayev, Lyubov E. Burlakova |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
0106 biological sciences
Biomass (ecology) Neogobius Ecology biology 010604 marine biology & hydrobiology Goby Mussel 010501 environmental sciences Aquatic Science Dreissena rostriformis biology.organism_classification 01 natural sciences Dreissena Article Predation Fishery Round goby Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences |
| Zdroj: | J Great Lakes Res |
| Popis: | We examined three decades of changes in dreissenid populations in Lake Ontario and predation by round goby (Neogobius melanostomus). Dreissenids (almost exclusively quagga mussels, Dreissena rostriformis bugensis) peaked in 2003, 13 years after arrival, and then declined at depths 90 m depths. Although the size distributions indicate that round goby is affecting mussel recruitment, we did not find a decline in dreissenid density in the nearshore and mid-depth ranges where goby have been abundant since 2005. The lake-wide densities and biomass of quagga mussels have increased over time, due to both the growth of individual mussels in the shallower depths, and a continuing increase in density at >90 m. Thus, the ecological effects of quagga mussels in Lake Ontario are likely to continue into the foreseeable future. |
| Databáze: | OpenAIRE |
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