Population dynamics, ingestion, growth and reproduction rates of the invader Beroe ovata and its impact on plankton community in Sevastopol Bay, the Black Sea

Финенко, Г. А.

doi:10.1093/plankt/25.5.539

Cited by 83 publications

(54 citation statements)

References 25 publications

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“…This is parallel to the findings of Finenko et al (2003). The pressure of Mnemiopsis leidyi on zooplankton was very high before 2000.…”

Section: The Composition and Seasonal Distribution Of Mesozooplanktonsupporting

confidence: 84%

Biological diversity and seasonal variation of mesozooplankton in the southeastern Black Sea coastal ecosystem

Yıldız¹,

Feyzioglu²

2014

Turk J Zool

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“…This is parallel to the findings of Finenko et al (2003). The pressure of Mnemiopsis leidyi on zooplankton was very high before 2000.…”

Section: The Composition and Seasonal Distribution Of Mesozooplanktonsupporting

confidence: 84%

Biological diversity and seasonal variation of mesozooplankton in the southeastern Black Sea coastal ecosystem

Yıldız¹,

Feyzioglu²

2014

Turk J Zool

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“…Furthermore, while we did not measure or estimate predation by Beroë, which was occasionally abundant during late summer, Burrell & van Engel (1976) suggested this cannibal species (not Chrysaora) was responsible for the removal of Mnemiopsis leidyi blooms in the York River. Similar predation effects were observed in the Black Sea following the introduction of Beroë (Kideys 2002, Finenko et al 2003.…”

Section: Factors Influencing Timing and Magnitude Of Mnemiopsis Leidysupporting

confidence: 69%

“…C bioavailability for tertiary production may hinge on the timing of blooms of Chrysaora medusae, and potentially Beroë ctenophores (Burrell & van Engel 1976, Finenko et al 2003, Purcell & Decker 2005 (Table 2). For example, Purcell & Decker (2005) noted that when C. quinquecirrha predominated, Mnemiopsis leidyi biomass was suppressed, releasing top-down control on copepods.…”

Section: Consequences Of Gelatinous Zooplankton Blooms For Carbon Cycmentioning

confidence: 99%

“…The cannibal ctenophore Beroë sp. and the scyphomedusan Chrysaora quinquecirrha can consume large quantities of M. leidyi (Purcell & Cowan 1995, Finenko et al 2003, and, in Chesapeake Bay, declines in ctenophore biomass have been attributed to predation by these gelatinous carnivores (Burrell & van Engel 1976, Feigenbaum & Kelly 1984, Purcell & Decker 2005. Other scyphomedusae are found in Chesapeake Bay, including Aurelia sp.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development, biological regulation, and fate of ctenophore blooms in the York River estuary, Chesapeake Bay

Condon¹,

Steinberg²

2008

Mar. Ecol. Prog. Ser.

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Blooms of the lobate ctenophore Mnemiopsis leidyi proliferate in estuaries and coastal regions worldwide. However, their role in food web structure and carbon flow between trophic levels is not fully understood. During 2003During -2006, we conducted field surveys along a salinity gradient in the lower York River, a sub-estuary of the Chesapeake Bay, to determine factors controlling the timing and magnitude of M. leidyi blooms, and to evaluate effects of gelatinous zooplankton on carbon cycling. Samples for density, biovolume, and carbon content of ctenophores, scyphomedusae, and mesozooplankton were collected using surface net tows and quantified in the laboratory. Historical published records on ctenophores and physical data from regional databases were used to complement this dataset. The highest biomass of M. leidyi occurred in early summer (up to 50 mg C m -3 ), although blooms also appeared in winter and spring. Peaks in ctenophore biomass in the mesohaline York River occurred in May, 1 mo earlier than further downriver in the polyhaline mainstem Chesapeake Bay, likely due to higher ctenophore reproductive potential and larval dispersal upriver. Copepod biomass remained low (<10 mg C m -3 ) during ctenophore blooms but was not limiting for M. leidyi. Rather, high predation by Chrysaora quinquecirrha scyphomedusae on M. leidyi (scyphomedusae requirements of up to 240% of M. leidyi C d -1 ) appears to cause the rapid decline in summer ctenophore blooms, and we hypothesize that, subsequently, medusae become carbon-limited. Long-term trends suggest M. leidyi blooms have shifted forward 1 mo, possibly due to localized temperature increases over the past 40 yr. These results suggest that M. leidyi blooms have a pivotal, and potentially transformative, role in carbon transfer in estuarine and coastal food webs.KEY WORDS: Mnemiopsis leidyi · Reproduction · Cydippid larvae · Scyphomedusae predation · Chrysaora quinquecirrha · Carbon cycle · Climate · York River · Chesapeake Bay Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 369: [153][154][155][156][157][158][159][160][161][162][163][164][165][166][167][168] 2008 altered food web structure and heavily impacted commercial fisheries because M. leidyi are voracious predators on copepods and ichthyoplankton (Purcell & Decker 2005, Costello et al. 2006. Similar impacts have been observed in native habitats, where temporal shifts in M. leidyi blooms have occurred and consequently driven Acartia copepod populations to summer extinction (Sullivan et al. 2001). Despite obvious predatory impacts on food web structure, we know very little regarding what impact M. leidyi has on largescale ecosystem processes, such as carbon cycling.Several studies have evaluated the seasonality, environmental cues, and biological characteristics that control Mnemiopsis leidyi populations, and demonstrate that ctenophores are well adapted to bloom formation. Mnemiopsis ctenophores are hermaphrodites that have the ability to produce h...

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“…Overfishing, eutrophication, and climatic changes (such as global warming) have been suggested as triggering factors of the blooms of jellyfish in both native and introduced waters [11][12][13][14]. Native predators (e.g., goby species [15]) of M. leidyi in the Caspian Sea did not appear to be as efficient as B. ovata, which feeds almost exclusively on M. leidyi [16], in the Black Sea, in consuming M. leidyi biomass [17].At the end of the 1991-2000 period, in which relatively good recruitment and high spawning-stock biomass of anchovy kilka were recorded, fishing mortality (1.8 y Despite the substantial decreases in zooplanktivorous fish and still available phytoplankton biomass (inferred from Chl a levels), sharp declines in the zooplankton abundance, particularly in late summer-early autumn, could be related to predation by M. leidyi in our study (see Figure 1). When the surface waters cooled in winter, M. leidyi biomass decreased substantially and a limited recovery of zooplankton abundance was observed.…”

mentioning

confidence: 99%

Increased Chlorophyll Levels in the Southern Caspian Sea Following an Invasion of Jellyfish

Kıdeyş

Roohi²,

Eker-Develi

et al. 2008

Research Letters in Ecology

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A significant correlation was observed between satellite derived chlorophyll a (Chl a) concentrations and the biomass of the invasive comb jellyfish Mnemiopsis leidyi in the southern Caspian Sea. By consuming the herbivorous zooplankton, the predatory ctenophore M. leidyi may have caused levels of Chl a to rise to very high values (∼9 mg m −3 ) in the southern Caspian Sea. There might also be several other factors concurrent with predation effects of M. leidyi influencing Chl a levels in this region, such as eutrophication and climatic changes which play major roles in nutrient, phytoplankton, and zooplankton variations. The decrease in pelagic fishes due to overfishing, natural, and anthropogenic impacts might have provided a suitable environment for M. leidyi to spread throughout this enclosed basin. Copyright © 2008 Ahmet E. Kideys et al. This is an open access article distributed under the Creative Commons AttributionLicense, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.The Caspian Sea is the largest inland water body in the world sustaining large stocks of small commercially important zooplanktivorous, pelagic fish. In such ecosystems, a consistent, significant decrease in numbers of grazing zooplankton would be expected to result in a decrease in pelagic fish stocks and their predators.Mnemiopsis leidyi is a highly fecund comb jelly feeding extensively on zooplankton. The main diet of this ctenophore in the southwestern Caspian Sea was found to be copepods (∼45%) during May 2000-March 2001, as found previously in the Black Sea [2]. Predation impacts of M. leidyi on zooplanktic prey organisms have been previously demonstrated in its native waters, the western Atlantic [3], and in introduced regions [4,5]. Furthermore, a recent study based on feeding experiments in the Caspian Sea suggested that the predation pressure of M. leidyi alone would be sufficient to suppress available stocks of zooplankton within a short period (1 day in summer and 3-8 days during winter/spring) [6] and thus would allow phytoplankton biomass to increase.In the late 1990s, M. leidyi was transported into the Caspian Sea [5], possibly in ballast water [5] and spread throughout the Caspian Sea within a few years [1,5,7,10]. Overfishing, eutrophication, and climatic changes (such as global warming) have been suggested as triggering factors of the blooms of jellyfish in both native and introduced waters [11][12][13][14]. Native predators (e.g., goby species [15]) of M. leidyi in the Caspian Sea did not appear to be as efficient as B. ovata, which feeds almost exclusively on M. leidyi [16], in the Black Sea, in consuming M. leidyi biomass [17].At the end of the 1991-2000 period, in which relatively good recruitment and high spawning-stock biomass of anchovy kilka were recorded, fishing mortality (1.8 y Despite the substantial decreases in zooplanktivorous fish and still available phytoplankton biomass (inferred from Chl a levels), sharp declines in the zooplan...

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Population dynamics, ingestion, growth and reproduction rates of the invader Beroe ovata and its impact on plankton community in Sevastopol Bay, the Black Sea

Cited by 83 publications

References 25 publications

Biological diversity and seasonal variation of mesozooplankton in the southeastern Black Sea coastal ecosystem

Biological diversity and seasonal variation of mesozooplankton in the southeastern Black Sea coastal ecosystem

Development, biological regulation, and fate of ctenophore blooms in the York River estuary, Chesapeake Bay

Increased Chlorophyll Levels in the Southern Caspian Sea Following an Invasion of Jellyfish

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