Invader amphipods Gmelinoides fasciatus (Stebbing, 1899) inhabiting distant waterbodies demonstrate differences in tolerance and energy metabolism under elevated temperatures |
| |
| Affiliation: | 1. Irkutsk State University, Institute of Biology, Irkutsk, Karl Marx str., 1, 664003, Russia;2. Baikal Research Center, Irkutsk, Lenin str., 21, 664003, Russia;3. Institute of Limnology RAS, St. Petersburg, Sevastyanov str., 9, 196105, Russia;4. Saint-Petersburg Branch of the Federal State Budgetary Scientific Institution “All-Russian Research Institute of Fisheries and Oceanography” (“GosNiorch” by L.S. Berg), St. Petersburg, Makarova nab. 26, 199053, Russia;1. Lake Michigan Biological Station, Illinois Natural History Survey, University of Illinois, Zion, IL, USA;2. Daniel P. Haerther Center for Conservation and Research, John G. Shedd Aquarium, Chicago, IL, USA;3. Division of Biological Sciences, The University of Montana, Missoula, MT, USA;4. Department of Environmental Science and Ecology, The College at Brockport - State University of New York, Brockport, NY, USA;1. Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States;2. USEPA Great Lakes Toxicology and Ecology Division, Duluth, MN, United States;1. Department of Anthropology, Trent University, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada;2. School of Archaeology and Ancient History, University of Leicester, Mayor’s Walk, Leicester LE1 7RH, United Kingdom;3. Department of Anthropology, University of British Columbia, 6303 NW Marine Drive, Vancouver, BC V6T 1Z1, Canada;4. Ancient DNA Laboratory, Department of Archaeology, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada;5. Department of Anthropology, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada;6. Perca Zooarchaeological Research, Toronto, Canada;7. The Archaeology Centre, University of Toronto, 19 Russell Street, Toronto, ON M5S 2S2, Canada;8. Trent University Archaeological Research Centre, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada;1. Department of Sustainable Agro-ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, Via E. Mach 1, 38010 San Michele all’Adige, Italy;2. UO CRLMBAS, ARPA Lombardia, Via I Maggio 21/b, 23848 Oggiono, Lecco, Italy;3. University of Applied Sciences and Arts of Southern Switzerland (SUPSI), Via Trevano, 6952 Canobbio, Switzerland;4. Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy;5. CNR Water Research Institute, L.go Tonolli 50, 28922 Verbania Pallanza, Italy;1. Idaho Department of Fish and Game, Salmon Region. 99 Hwy 93 N. Salmon, ID 83467, United States;2. University of Wisconsin-Stevens Point, College of Natural Resources, 800 Reserve St., Stevens Point, WI 54481, United States;3. Patrick Schmalz Minnesota Department of Natural Resources, Fisheries Research, Duluth Field Office, 5351 North Shore Dr., Duluth, MN 55804, United States;4. Minnesota Department of Natural Resources, Division of Fish and Wildlife, Duluth Field Office, 5351 North Shore Dr., Duluth, MN 55804, United States;5. Paul Piszczeck Wisconsin Department of Natural Resources, Lake Superior Fisheries Unit, 1701 N 4th St. Superior, WI 54880, United States;6. Brian Borkholder Fond du Lac Band of Lake Superior Chippewa, Resource Management Division, 28 University Road, Cloquet, MN 55720, United States |
| |
| Abstract: | Gmelinoides fasciatus is a successful invasive amphipod (Amphipoda, Crustacea) that dispersed from Lake Baikal to various waterbodies. Here we studied whether Baikal conditions are optimal for G. fasciatus in terms of thermotolerance and investigated lethal temperatures, 70 kDa heat shock protein level, energy metabolism, and antioxidant defense of animals from three geographically distant waterbodies under changing temperatures. We used acute heat exposure to 28 °C to assess the median lethal times and gradual temperature increase from 6 °C to determine the lethal temperatures. Mortality under heat shock was explainable by the baseline content of Hsp70 that correlated with thermal history. But it was not the case under gradual temperature increase where Hsp70 levels became similar and the mortality pattern changed. The most thermotolerant amphipods from the Gulf of Finland demonstrated a higher amount of free glucose during the temperature increase that may be related to the higher salinity of this waterbody and less energy required for ion regulation. Even though concentrations of major physiological ions in Lake Baikal are lower than in Lake Ladoga, G. fasciatus from Ladoga was slightly more sensitive to the gradual temperature increase. This difference could be explained by the influence of high levels of humic and other potentially toxic substances in Lake Ladoga indicated by increased activities of catalase and glutathione S-transferase. Importantly, all G. fasciatus populations accumulated relatively low levels of lactate during the temperature increase, which may reflect the ability of this invasive species to effectively maintain aerobic metabolism under various conditions. |
| |
| Keywords: | Adaptation Thermal tolerance Salinity Lake Baikal Lake Ladoga Gulf of Finland |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
