| food resource effects on diel movements and body size of cisco in north-temperate lakes. | the movement patterns and body size of fishes are influenced by a host of physical and biological conditions, including temperature and oxygen, prey densities and foraging potential, growth optimization, and predation risk. our objectives were to (1) investigate variability in vertical movement patterns of cisco (coregonus artedi) in a variety of inland lakes using hydroacoustics, (2) explore the causal mechanisms influencing movements through the use of temperature/oxygen, foraging, growth, and ... | 2013 | 23812176 |
| comparing climate change and species invasions as drivers of coldwater fish population extirpations. | species are influenced by multiple environmental stressors acting simultaneously. our objective was to compare the expected effects of climate change and invasion of non-indigenous rainbow smelt (osmerus mordax) on cisco (coregonus artedii) population extirpations at a regional level. we assembled a database of over 13,000 lakes in wisconsin, usa, summarising fish occurrence, lake morphology, water chemistry, and climate. we used a1, a2, and b1 scenarios from the intergovernmental panel on clima ... | 2011 | 21860661 |
| a simulation of food-web interactions leading to rainbow smelt osmerus mordax dominance in sparkling lake, wisconsin. | a process-based simulation model was used to examine the nature and intensity of food-web interactions that allow osmerus mordax to dominate invaded lakes. the model simulates food-web interactions among linked populations of o. mordax, coregonus artedi and sander vitreus. simulations indicated that o. mordax dominate where: (1) adult o. mordax prey on young-of-the-year (yoy) c. artedi, (2) yoy o. mordax negatively affect yoy s. vitreus through competition and (3) adult s. vitreus experience mod ... | 2010 | 21039511 |