Diminished Conspecific Odor Recognition in the Rusty Crayfish (Orconectes rusticus) Following a 96-h Exposure to Atrazine

2017 ◽  
Vol 99 (5) ◽  
pp. 555-560 ◽  
Author(s):  
Rachelle M. Belanger ◽  
Kendra R. Evans ◽  
Noor K. Abraham ◽  
Kaldoun M. Barawi
Keyword(s):  
Orconectes Rusticus ◽  
Conspecific Odor ◽  
Odor Recognition ◽  
Rusty Crayfish

Effects of water velocity on the size and shape of rusty crayfish, Orconectes rusticus

2013 ◽  
Vol 32 (4) ◽  
pp. 1398-1409 ◽  
Author(s):  
William L. Perry ◽  
Anthony M. Jacks ◽  
Daniel Fiorenza ◽  
Madeleine Young ◽  
Richard Kuhnke ◽  
...  
Keyword(s):  
Water Velocity ◽  
Orconectes Rusticus ◽  
Rusty Crayfish ◽  
Size And Shape

Invasion of the Upper Susquehanna River Watershed by Rusty Crayfish (Orconectes rusticus)

2007 ◽  
Vol 14 (4) ◽  
pp. 507-518 ◽  
Author(s):  
Mark L. Kuhlmann ◽  
Peter D. Hazelton
Keyword(s):  
Orconectes Rusticus ◽  
River Watershed ◽  
Rusty Crayfish ◽  
Susquehanna River

scholarly journals Effectiveness of stream sampling methods in capturing non-native Rusty Crayfish (Orconectes rusticus) in Ontario

2014 ◽  
Vol 128 (2) ◽  
pp. 111 ◽  
Author(s):  
Scott M. Reid ◽  
Jane Devlin
Keyword(s):  
Sampling Methods ◽  
Capture Probability ◽  
Sexually Active ◽  
Orconectes Rusticus ◽  
Rusty Crayfish ◽  
Stream Sampling ◽  
First Pass ◽  
Native Crayfish ◽  
Removal Model ◽  
Species Removal

Habitat alteration and species introductions have contributed to the decline of native crayfish in Ontario. although lake populations of crayfish in Ontario are monitored, there is no corresponding program for streams. We used removal-based sampling to evaluate the efficacy of three sampling techniques (backpack electrofishing, hand capture, and seining) to characterize native and non-native crayfish populations in six streams in the Kawartha lakes region and five streams in the Muskoka/Haliburton lakes region. all types were effective at detecting non-native Rusty Crayfish (Orconectes rusticus). Rusty Crayfish were collected from 65% of samples, constituted 90% of the total catch, and were the only species present in 30% of streams. Compared with other methods, electrofishing was more likely to capture additional crayfish species. Removal-based sampling was not a reliable approach for estimating capture probability and population size. Failure of the removal model was due to increases in the number of crayfish captured after the first pass or too few individuals collected. Mean capture probabilities for electrofishing (0.30) and hand capture (0.31) did not result in reliable population estimates. Compared with seining, electrofishing and hand capture resulted in more sexually active males (fewer sexually inactive males) and more small (< 25 mm carapace length) individuals. For each method, there were differences in capture probability among length classes. a combination of electrofishing and seining (with multiple passes) would maximize species detection, permit sampling of a range of habitat types, and be easily integrated into existing stream fish surveys.

Fish predation and trapping for rusty crayfish (Orconectes rusticus) control: a whole-lake experiment

2006 ◽  
Vol 63 (2) ◽  
pp. 383-393 ◽  
Author(s):  
Catherine L Hein ◽  
Brian M Roth ◽  
Anthony R Ives ◽  
M Jake Vander Zanden
Keyword(s):  
Growth Rate ◽  
Population Growth ◽  
Population Growth Rate ◽  
Fish Predation ◽  
Reproductive Value ◽  
Orconectes Rusticus ◽  
Long Term Effects ◽  
Structured Population Model ◽  
Rusty Crayfish ◽  
Crayfish Population

Improved methods are needed for the prevention and control of invasive species. We investigated the potential to control a rusty crayfish (Orconectes rusticus) population in an isolated lake in northern Wisconsin by trapping adult crayfish and restricting fishing, thereby increasing fish populations and predation on small crayfish. Over a 3 year period, traps and predatory fishes removed substantial portions of the rusty crayfish population. We used an age-structured population model to determine which removal method had the largest effect on crayfish population growth rates. Because more crayfish were vulnerable to and removed by fish predation than by trapping, fish predation caused a larger decline in the population growth rate. However, trapping removed crayfish with the highest reproductive value and caused the largest decline in population growth rate per individual crayfish removed. Consideration of density-dependent responses to removal is necessary to predict long-term effects on rusty crayfish population dynamics. Nonetheless, our results suggest that the combination of trapping and fish predation can control established rusty crayfish populations and deserves further consideration for management.

Potential Corridors for the Rusty Crayfish, Orconectes Rusticus, in Northern Wisconsin (USA) Lakes: Lessons for Exotic Invasions

2005 ◽  
Vol 20 (5) ◽  
pp. 567-577 ◽  
Author(s):  
Linda M. Puth ◽  
T. F. H. Allen
Keyword(s):  
Orconectes Rusticus ◽  
Rusty Crayfish

scholarly journals Rapid range expansion of rusty crayfish Orconectes rusticus (Girard, 1852) in the John Day River, Oregon, USA

2012 ◽  
Vol 7 (2) ◽  
pp. 291-294 ◽  
Author(s):  
Keith Sorenson ◽  
Stephen Bollens ◽  
Tim Counihan
Keyword(s):  
Range Expansion ◽  
Orconectes Rusticus ◽  
Rusty Crayfish ◽  
John Day River ◽  
John Day

Aspects of the thermal ecology of the rusty crayfish Orconectes rusticus (Girard)

Oecologia ◽  
1990 ◽  
Vol 82 (2) ◽  
pp. 210-216 ◽  
Author(s):  
Neal D. Mundahl ◽  
Michael J. Benton
Keyword(s):  
Thermal Ecology ◽  
Orconectes Rusticus ◽  
Rusty Crayfish

Associative learning in male rusty crayfish (Orconectes rusticus): conditioned behavioural response to an egg cue from walleye (Sander vitreus)

2012 ◽  
Vol 90 (1) ◽  
pp. 85-92 ◽  
Author(s):  
C.D. Weisbord ◽  
D.T. Callaghan ◽  
G.G. Pyle
Keyword(s):  
Associative Learning ◽  
Aquatic Organisms ◽  
Sander Vitreus ◽  
Paired Stimulus ◽  
Orconectes Rusticus ◽  
Fish Eggs ◽  
Rusty Crayfish ◽  
Hierarchy Formation ◽  
Y Maze ◽  
Subsequent Exposure

Chemical communication governs a diversity of life processes in aquatic organisms. Crayfish use chemoreception during reproduction, social hierarchy formation, predation avoidance, and resource localization. Fish eggs release recognizable chemoattractants for vertebrate predators of eggs that can motivate crayfish to engage in egg predation as well. We hypothesized that male rusty crayfish ( Orconectes rusticus (Girard, 1852)) from a lake free of walleye ( Sander vitreus (Mitchill, 1818)) would not possess an innate recognition of a walleye egg cue. However, if conditioned by employing a single 2 h paired stimulus exposure (known food cue + egg cue), then male rusty crayfish would be attracted to the same egg cue upon subsequent exposure. Using a Y-maze behavioural arena we discovered that once conditioned, crayfish took significantly less time to choose the arm containing the egg cue alone relative to a control. Our study suggests that male rusty crayfish exhibit second-order conditioning through associative learning, allowing them to quickly and easily learn to identify novel odour stimuli from fish eggs under laboratory conditions.

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