Publications
Welcome to the Great Lakes Science Center's Publications page.
Filter Total Items: 2571
Feeding periodicity, diet composition, and food consumption of subyearling rainbow trout in winter
Although winter is a critically important period for stream salmonids, aspects of the ecology of several species are poorly understood. Consequently, we examined the diel feeding ecology of subyearling rainbow trout (Oncorhynchus mykiss) during winter in a central New York stream. Rainbow trout diet was significantly different during each 4-h interval and also differed from the drift and benthos.
Authors
James H. Johnson, Marc Chalupnicki, Ross Abbett
Predation on Chinook Salmon parr by hatchery salmonids and Fallfish in the Salmon River, New York
Naturally reproduced Chinook Salmon Oncorhynchus tshawytscha contribute substantially to the fishery in Lake Ontario. The Salmon River, a Lake Ontario tributary in New York, produces the largest numbers of naturally spawned Chinook Salmon, with parr abundance in the river often exceeding 10 million. In the spring of each year, large numbers of hatchery salmonid yearlings—potential predators of Chi
Authors
James H. Johnson, Christopher C. Nack, Marc Chalupnicki, Ross Abbett, James E. McKenna
Diversity of fungal endophytes in non-native Phragmites australis in the Great Lakes
Plant–microbial interactions may play a key role in plant invasions. One common microbial interaction takes place between plants and fungal endophytes when fungi asymptomatically colonize host plant tissues. The objectives of this study were to isolate and sequence fungal endophytes colonizing non-native Phragmites australis in the Great Lakes region to evaluate variation in endophyte community co
Authors
Keith Clay, Zachery Shearin, Kimberly Bourke, Wesley A. Bickford, Kurt P. Kowalski
Applying the collective impact approach to address non-native species: A case study of the Great Lakes Phragmites Collaborative
To address the invasion of non-native Phragmites in the Great Lakes, researchers at the U.S. Geological Survey—Great Lakes Science Center partnered with the Great Lakes Commission in 2012 to establish the Great Lakes Phragmites Collaborative (GLPC). The GLPC is a regional-scale partnership established to improve collaboration among stakeholders and increase the effectiveness of non-native Phragmit
Authors
H. B. Braun, Kurt P. Kowalski, K. Hollins
Evaluation of the functional roles of fungal endophytes of Phragmites australis from high saline and low saline habitats
Non-native Phragmites australis decreases biodiversity and produces dense stands in North America. We surveyed the endophyte communities in the stems, leaves and roots of collections of P. australis obtained from two sites with a low and high salt concentration to determine differences in endophyte composition and assess differences in functional roles of microbes in plants from both sites. We fou
Authors
Marcos Antonio Soares, Hai-Yan Li, Kurt P. Kowalski, Marshall Bergen, Monica S. Torres, James F. White
Habituation of adult sea lamprey repeatedly exposed to damage-released alarm and predator cues
Predation is an unforgiving selective pressure affecting the life history, morphology and behaviour of prey organisms. Selection should favour organisms that have the ability to correctly assess the information content of alarm cues. This study investigated whether adult sea lamprey Petromyzon marinus habituate to conspecific damage-released alarm cues (fresh and decayed sea lamprey extract), a he
Authors
Istvan Imre, Richard T. Di Rocco, Grant E. Brown, Nicholas S. Johnson
Functional role of bacteria from invasive Phragmites australis in promotion of host growth
We hypothesize that bacterial endophytes may enhance the competitiveness and invasiveness of Phragmites australis. To evaluate this hypothesis, endophytic bacteria were isolated from P. australis. The majority of the shoot meristem isolates represent species from phyla Firmicutes, Proteobacteria, and Actinobacteria. We chose one species from each phylum to characterize further and to conduct growt
Authors
M. A. Soares, H-Y Li, Kurt P. Kowalski, M. Bergen, M. S. Torres, J. F. White
Predation on Pacific salmonid eggs and carcass's by subyearling Atlantic salmon in a tributary of Lake Ontario
A binational effort to reintroduce Atlantic salmon (Salmo salar) that were extirpated in the Lake Ontario ecosystem for over a century is currently being undertaken by the New York State Department of Environmental Conservation and the Ontario Ministry of Natural Resources. Reintroduction actions include the release of several life stages including fry, fall fingerlings, and yearling smolts. In th
Authors
James H. Johnson, Marc A. Chalupnicki, Ross Abbett, Francis Verdoliva
Diel diet of fantail darter in a tributary to Lake Ontario, New York, USA
The foraging behavior of benthic fishes in streams is seldom examined but is vital to the health of the aquatic community. We examined the feeding ecology of the fantail darter (Etheostoma flaballere) in Trout Brook, a tributary of the Salmon River in central New York, USA. Of the six time periods examined, fantail darters fed most intensely from 1600–2000 h, with ephemeropterans the major prey co
Authors
Marc A. Chalupnicki, James H. Johnson
North American sturgeon otolith morphology
Accurate expedient species identification of deceased sturgeon (Acipenseridae) when external physical characteristic analysis is inconclusive has become a high priority due to the endangered or threatened status of sturgeon species around the world. Examination of otoliths has provided useful information to aid in population management, age and size-class analysis, understanding predator–prey inte
Authors
Marc A. Chalupnicki, Dawn E. Dittman
Observations of cocooned Hydrobaenus (Diptera: Chironomidae) larvae in Lake Michigan
Larvae of the family Chironomidae have developed a variety of ways to tolerate environmental stress, including the formation of cocoons, which allows larvae to avoid unfavorable temperature conditions, drought, or competition with other chironomids. Summer cocoon formation by younger instars of the genus Hydrobaenus Fries allows persistence through increased temperatures and/or intermittent dry pe
Authors
Taaja R. Tucker, Patrick L. Hudson, Stephen Riley
Testing for synchrony in recruitment among four Lake Michigan fish species
In the Great Lakes region, multiple fish species display intra-specific spatial synchrony in 28 recruitment success, with inter-annual climate variation hypothesized as the most likely driver. 29 In Lake Michigan, we evaluated whether climatic or other physical variables could also induce 30 spatial synchrony across multiple species, including bloater (Coregonus hoyi), rainbow smelt 31 (Osmerus mo
Authors
David B. Bunnell, Tomas O. Höök, Cary D. Troy, Wentao Liu, Charles P. Madenjian, Jean V. Adams