Impact of predation by Mysis relicta on zooplankton in Flathead Lake, Montana, USA

Spencer, Craig N.; Potter, David; Bukantis, Robert T.; Stanford, Jack A.

doi:10.1093/plankt/21.1.51

Cited by 56 publications

(41 citation statements)

References 21 publications

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“…The broad shifts we observed in the benthic communities of San Francisco Bay, from predominantly surface algal consumers to subsurface detritivores, are consistent with changes in the base of the food web (Levin et al 2006); belowground plant detritus was 4.3 times more abundant in Spartina-invaded sediments than in the tidal flat during our study (Neira et al 2005). To date the most fundamental changes documented in food web structure following species invasion have resulted from top-down effects of predatory fish (Hurlbert et al 1972), zooplankton (Spencer et al 1991(Spencer et al , 1999, and suspensionfeeding bivalves (Alpine and Cloern 1992). Our studies suggest that plant influences on trophic structure interact with modifications of flow and sediment conditions, recruitment, and predation to transform wetland ecosystems.…”

Section: Trophic Modificationssupporting

confidence: 80%

Mechanisms Generating Modification of Benthos Following Tidal Flat Invasion by a Spartina Hybrid

Neira

Grosholz

Levin

et al. 2006

Ecological Applications

137

112

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Abstract. Many coastal habitats are being substantially altered by introduced plants. In San Francisco Bay, California, USA, a hybrid form of the eastern cordgrass Spartina alterniflora is rapidly invading open mudflats in southern and central sections of the Bay, altering habitat, reducing macrofaunal densities, and shifting species composition. The invasion has resulted in significant losses of surface-feeding amphipods, bivalves, and cirratulid polychaetes, while subsurface feeding groups such as tubificid oligochaetes and capitellid polychaetes have been unaffected. In the present paper, we document the causes and mechanisms underlying the changes observed. Through a series of in situ manipulative experiments we examined the influence of hybrid Spartina canopy on a range of physical, chemical, and biological properties. The hybrid Spartina canopy exerted a strong influence on the hydrodynamic regime, triggering a series of physical, chemical, and biological changes in the benthic system. Relative to tidal flats, water velocity was reduced in hybrid patches, promoting deposition of fine-grained, organic-rich particles. The resulting changes in the sediment environment included increased porewater sulfide concentrations and anoxia, which led to poor survivorship of surface feeders such as bivalves, amphipods, and polychaetes. These are key taxa that support higher trophic levels including migratory shorebirds that feed on tidal flats. Altered flow in the Spartina canopy further contributed to changes in barnacle recruitment and resuspension of adult benthic invertebrates. Increased crab-induced predation pressure associated with Spartina invasion also contributed to changes in benthic invertebrate communities. Our results suggest that multiple physical, chemical, biotic, and trophic impacts of the Spartina invasion have resulted in substantial changes in benthic communities that are likely to have important effects on the entire ecosystem.

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Section: Trophic Modificationssupporting

confidence: 80%

Mechanisms Generating Modification of Benthos Following Tidal Flat Invasion by a Spartina Hybrid

Neira

Grosholz

Levin

et al. 2006

Ecological Applications

137

112

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“…This is because, at night, Mysis migrate up from the hypolimnion and lower metalimnion, into the upper metalimnion and lower epilimnion. D. mendotae have been shown to simultaneously migrate away from the regions inhabited by Mysis to higher regions in the epilimnion (Bowers and Vanderploeg 1982 (Clarke and Bennet 2003) and Flathead Lake, Montana (Spencer et al 1999).…”

Section: Discussionmentioning

confidence: 99%

“…It has been hypothesized that this vulnerability to Mysis contributes to a vertical diel migration by Daphnia spp. that minimizes spatial overlap, and therefore vulnerability (Bowers and Vanderploeg 1982, Spencer et al 1999, Clarke and Bennet 2003. Based on these patterns, we hypothesized that Mysis induce a change in Daphnia mendotae behavior, in particular vertical migration patterns, and we tested this hypothesis with laboratory experiments.…”

Section: Introductionmentioning

confidence: 99%

Behavioral response of Lake Michigan Daphnia mendotae to Mysis relicta

Peacor

Pangle

Vanderploeg

2005

Journal of Great Lakes Research

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“…is well documented (Lasenby & Langford 1973, Richards et al 1975, Kinsten & Olsén 1981, Langeland 1981, 1988, Bowers and Vanderploeg 1982. In Lake Tahoe, the dominant zooplankters Bosmina and 2 species of Daphnia virtually disappeared after the introduction of M. diluviana (formerly M. relicta) (Richards et al 1975), and Bosmina and Daphnia were the preferred prey in Flathead Lake (Spencer et al 1999). In Lake Selbusjøen, the source lake for mysids in Lake Jonsvaten, cladocerans were reduced to a very low biomass 5 to 6 yr after the introduction of M. relicta in 1973.…”

Section: Discussionmentioning

confidence: 96%

“…More re-cent studies have added nuanced information to the omnivorous feeding habits of M. relicta (Branstrator et al 2000, Johannsson et al 2001, Lasenby & Shi 2004, Ikonen et al 2005, Scharf & Koschel 2005. After introductions both in North America and Scandinavia, it gradually became evident that M. relicta had the ability to reduce zooplankton abundance and change species composition through its predatory behavior (Lasenby & Langford 1973, Threlkeld et al 1980, Kinsten & Olsén 1981, Lasenby et al 1986, Nero & Sprules 1986a, Spencer et al 1999. In many of the target lakes, M. relicta turned out to be an effective competitor with planktivorous fish for zooplankton prey.…”

Section: Introductionmentioning

confidence: 99%

Plankton development in Lake Jonsvatn, Norway, after introduction of Mysis relicta: a long-term study

Koksvik¹,

Reinertsen²,

Koksvik

2009

Aquat. Biol.

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Quantitative sampling of phyto-and zooplankton has been carried out for 25 yr in Lake Jonsvatn, Norway, in order to assess changes after the introduction of Mysis relicta. In Lille Jonsvatn, the outlet basin, the cladoceran populations collapsed 7 yr after the mysid introduction. The mean cladoceran biomass was reduced by 95 to 99% for a decade before Bosmina longispina, Holopedium gibberum and Daphnia galeata developed new populations. B. longispina and H. gibberum almost disappeared again after a few years, while D. galeata was replaced by D. longispina, which unexpectedly maintained a relatively dense population in the presence of high mysid abundance. Rotifers declined significantly in Lille Jonsvatn after the mysid establishment, whereas copepod biomass did not change. Phytoplankton biomass increased during the first years after the cladoceran collapse, but declined later to levels lower than in pre-mysid years. The changes were probably a combined effect of reduced nutrient loads and grazing pressure. In the main basin, Store Jonsvatn, there were no detectable effects on the zooplankton community during the first 10 to 15 yr after the introduction, in spite of development to common densities of mysids within 8 yr. Over time, cladocerans decreased significantly, however, and mean biomass for the last 5 yr showed a 60% reduction compared with the first 10 yr. No significant long-term changes were detected in copepods, rotifers or phytoplankton biomass in Store Jonsvatn. Differences in temperature, stratification, light transmission and depth may partly explain the different plankton development in the 2 basins.KEY WORDS: Mysis relicta · Long-term study · Phytoplankton biomass · Zooplankton biomass Resale or republication not permitted without written consent of the publisher Contribution to the Theme Section 'Advances in the ecology of freshwater mysids'OPEN PEN

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Impact of predation by Mysis relicta on zooplankton in Flathead Lake, Montana, USA

Cited by 56 publications

References 21 publications

Mechanisms Generating Modification of Benthos Following Tidal Flat Invasion by a Spartina Hybrid

Mechanisms Generating Modification of Benthos Following Tidal Flat Invasion by a Spartina Hybrid

Behavioral response of Lake Michigan Daphnia mendotae to Mysis relicta

Plankton development in Lake Jonsvatn, Norway, after introduction of Mysis relicta: a long-term study

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