Influence of light on the foraging impact of an introduced predatory cladoceran,Bythotrephes longimanus

2013 ◽  
Vol 58 (9) ◽  
pp. 1946-1957 ◽  
Author(s):  
Anneli Jokela ◽  
Shelley E. Arnott ◽  
Beatrix E. Beisner
Keyword(s):  
Bythotrephes Longimanus ◽  
Predatory Cladoceran

Changes in the crustacean communities of Lakes Michigan, Huron, and Erie following the invasion of the predatory cladoceran Bythotrephes longimanus

2004 ◽  
Vol 61 (11) ◽  
pp. 2111-2125 ◽  
Author(s):  
Richard P Barbiero ◽  
Marc L Tuchman
Keyword(s):  
Zooplankton Community ◽  
Crustacean Zooplankton ◽  
Bythotrephes Longimanus ◽  
Zooplankton Community Structure ◽  
Cladoceran Species ◽  
Invertebrate Predators ◽  
Predatory Cladoceran ◽  
Leptodora Kindti ◽  
Escape Responses ◽  
Zooplankton Communities

The crustacean zooplankton communities in Lakes Michigan and Huron and the central and eastern basins of Lake Erie have shown substantial, persistent changes since the invasion of the predatory cladoceran Bythotrephes in the mid-1980s. A number of cladoceran species have declined dramatically since the invasion, including Eubosmina coregoni, Holopedium gibberum, Daphnia retrocurva, Daphnia pulicaria, and Leptodora kindti, and overall species richness has decreased as a result. Copepods have been relatively unaffected, with the notable exception of Meso cyclops edax, which has virtually disappeared from the lakes. These species shifts have for the most part been consistent and equally pronounced across all three lakes. Responses of crustacean species to the Bythotrephes invasion do not appear to be solely a consequence of size, and it is likely that other factors, e.g., morphology, vertical distribution, or escape responses, are important determinants of vulnerability to predation. Our results indicate that invertebrate predators in general, and invasive ones in particular, can have pronounced, lasting effects on zooplankton community structure.

Colonization dynamics of the invasive predatory cladoceran, Bythotrephes longimanus , inferred from sediment records

2017 ◽  
Vol 62 (3) ◽  
pp. 1096-1110 ◽  
Author(s):  
Donn K. Branstrator ◽  
Ashley E. Beranek ◽  
Meghan E. Brown ◽  
Leif K. Hembre ◽  
Daniel R. Engstrom
Keyword(s):  
Bythotrephes Longimanus ◽  
Sediment Records ◽  
Predatory Cladoceran ◽  
Colonization Dynamics

The North American invasive zooplanktivore Bythotrephes longimanus is less hypoxia-tolerant than the native Leptodora kindtii

2017 ◽  
Vol 74 (6) ◽  
pp. 824-832 ◽  
Author(s):  
Michael L. Sorensen ◽  
Donn K. Branstrator
Keyword(s):  
Climate Change ◽  
Landscape Scale ◽  
Tolerance Limit ◽  
Hypoxia Tolerance ◽  
Bythotrephes Longimanus ◽  
Water Flea ◽  
Leptodora Kindtii ◽  
The North ◽  
Species Survival ◽  
Predatory Cladoceran

The predatory cladoceran Bythotrephes longimanus (spiny water flea) has been invading lakes and damaging food webs across the central part of North America since the early 1980s. To understand its niche and that of the taxonomically related and native predatory cladoceran Leptodora kindtii, we investigated species survival after 12 h exposures to low dissolved oxygen (DO) concentrations in the laboratory. Bythotrephes longimanus (n = 690) exhibited a hypoxia tolerance limit (LC50) of 1.65 mg·L−1 DO (95% confidence interval: 1.59, 1.72 mg·L−1) and was significantly less tolerant of hypoxia than L. kindtii (n = 380), which exhibited an LC50 of 0.58 mg·L−1 DO (0.51, 0.65 mg·L−1). These lab-based physiological results are consistent with landscape-scale observations that B. longimanus successfully invades primarily mesotrophic and oligotrophic lakes, while L. kindtii inhabits a wider range of lakes that includes eutrophic ones. Climate change throughout the 21st century may increase the occurrence and severity of hypoxia in the hypolimnia of lakes and may provide a growing barrier to B. longimanus invasion.

Models of lake invasibility by Bythotrephes longimanus, a non-indigenous zooplankton

2011 ◽  
Vol 13 (11) ◽  
pp. 2459-2476 ◽  
Author(s):  
Alex Potapov ◽  
Jim Muirhead ◽  
Norman Yan ◽  
Subhash Lele ◽  
Mark Lewis
Keyword(s):  
Bythotrephes Longimanus

Evolution or Extinction: Might Zooplankton Adaptively Respond to the Novel Invasive Predator Bythotrephes longimanus?

2018 ◽  
Author(s):  
Emma Bloomfield
Keyword(s):  
Vertical Migration ◽  
Diel Vertical Migration ◽  
Prey Species ◽  
Rapid Evolution ◽  
Freshwater Ecosystems ◽  
Bythotrephes Longimanus ◽  
Economic Implications ◽  
Invasive Predators ◽  
Invasive Predator ◽  
Introduced Predators

Invasive predators are a large and growing threat to species diversity and human well-being. One of the reasons invasive predators have a negative impact is that native prey species do not possess appropriate anti-predator defenses. However, rapid evolution may allow prey species to respond adaptively to introduced predators. When this occurs the impacts of invasive predators are mitigated. An invasive predator that is of concern in North America is the spiny water flea, Bythotrephes longimanus. It disrupts freshwater ecosystems through voracious consumption of zooplankton. Declines in zooplankton abundance and richness reduce water quality and recreational fishing opportunities. However, a species of zooplankton, Daphnia mendotae has been found to adaptively respond to B. longimanus. This adaptation is diel vertical migration, the behavioral change of occupying a lower position in the water column during the day to reduce predation risk. Despite the ecological and economic implications of this behavior in response to B. longimanus, it has only been studied in a few lakes. This study investigated adaptive diel vertical migration in D. mendotae from multiple lakes. This was done by measuring the vertical position of D. mendotae in artificial water columns. It was hypothesized that D. mendotae from lakes that have been invaded by B. longimanus will exhibit diel vertical migration in the presence of B. longimanus. If this hypothesis is supported, rapid evolution of diel vertical migration can be established as a widespread response. This would strengthen understanding of rapid evolution and allow lakes more vulnerable to B.longimanus to be identified.

Examination of direct daytime predation by Coregonus artedi on Bythotrephes longimanus in Harp Lake, Ontario, Canada: no evidence for the refuge hypothesis

2009 ◽  
Vol 66 (3) ◽  
pp. 449-459 ◽  
Author(s):  
Joelle D. Young ◽  
Ellis R. Loew ◽  
Norman D. Yan
Keyword(s):  
Cold Water ◽  
Lake Ontario ◽  
Planktivorous Fish ◽  
Bythotrephes Longimanus ◽  
Death Rates ◽  
Direct Observations ◽  
Coregonus Artedi ◽  
Selection Of ◽  
Gill Netting ◽  
Harp Lake

Since its introduction to Harp Lake, Ontario, Canada, summer abundance of the cladoceran zooplanktivore Bythotrephes longimanus has fluctuated substantially both among and within years. The principal planktivorous fish in Harp Lake is the cold-water Coregonus artedi (cisco). Previous studies hypothesized that Bythotrephes abundance was affected by the thickness of an ephemeral, dark, daytime refuge from cisco that potentially established at the bottom of the metalimnion. During summer of 2003, we estimated peak daytime refuge thickness by simulating light energy visible to cisco and found it was always negative and did not correlate with Bythotrephes death rates. Direct observations using gill-netting and acoustical methods suggested that cisco had frequent metalimnetic forays. Additionally, including years 2000–2004, the previous correlation between mean Bythotrephes abundance and refuge thickness no longer held. The refuge hypothesis appears to fail, as the amount of metalimnetic illumination was always above the level at which cisco reaction distance to prey is maximal. Selection of Bythotrephes by cisco instead appeared to increase once Bythotrephes became abundant, remaining consistent and nontrivial even after Bythotrephes population declined.

Coupling stable isotopes with bioenergetics to evaluate sources of variation in organochlorine concentrations in Baltic salmon (Salmo salar)

2008 ◽  
Vol 65 (10) ◽  
pp. 2114-2126 ◽  
Author(s):  
Mikko Kiljunen ◽  
Heikki Peltonen ◽  
Roger I. Jones ◽  
Hannu Kiviranta ◽  
Pekka J. Vuorinen ◽  
...  
Keyword(s):  
Salmo Salar ◽  
Individual Variation ◽  
Prey Species ◽  
Trophic Position ◽  
Gulf Of Finland ◽  
Cercopagis Pengoi ◽  
Dioxins And Furans ◽  
Predatory Cladoceran ◽  
Sources Of Variation ◽  
The Gulf Of Finland

Atlantic salmon ( Salmo salar ) collected from three locations around the northern Baltic Sea in 2003–2004 showed large spatial and individual variation in their organochlorines (OCs) (polychlorinated dibenzo-p-dioxins and furans and polychlorinated biphenyls). This variation could be explained only partly by their size or sea age. The variability arose from the differences in salmon diet, trophic position, and prey OC concentrations and lipid content. A salmon bioenergetics accumulation model was used to evaluate the contribution of salmon growth and their diet to the observed individual variation in OC content. Our model revealed that the contribution of three main prey species in the OC accumulation of salmon varied markedly between the study areas. Amount of lipids in salmon explained a large proportion of their OC concentration. However, trophic position of salmon calculated from the δ15N values explained almost 80% of the variation in lipid-normalized OC concentrations. In the Gulf of Finland, where OC concentrations of salmon were highest, their prey species had the highest OC concentrations and trophic positions. Higher OC concentrations in the Gulf of Finland might be related to elevated trophic positions caused by invasion of the predatory cladoceran Cercopagis pengoi in 1990.

Sign in / Sign up

Export Citation Format

Share Document