Timing and size of blooms of the ctenophore Mnemiopsis leidyi in relation to temperature in Narragansett Bay, RI

Sullivan, Barbara K.; Keuren, Donna Van; Clancy, Michael

doi:10.1007/978-94-010-0722-1_10

Cited by 68 publications

(71 citation statements)

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“…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.…”

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 86%

“…The Chesapeake Bay climate and water temperature have undergone major changes during this time frame (Austin 2002), and we hypothesize that shifts observed in M. leidyi blooms are associated with these increases in water temperature. Similarly, dramatic 2 mo shifts were observed in M. leidyi blooms of Narragansett Bay, and these were attributed to increases in average monthly surface water temperatures (Sullivan et al 2001, Costello et al 2006. Austin (2002) suggested warmer temperatures can initiate reproductive effort through early spawning of fish larvae.…”

Section: Influence Of Climate On Mnemiopsis Leidyi Bloomsmentioning

confidence: 98%

“…For example, its accidental introduction into the Black Sea and subsequent expansion has significantly 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.…”

Section: Introductionmentioning

confidence: 96%

“…Previous research on M. leidyi blooms in this estuary identified seasonality and regions where blooms proliferated (Burrell & van Engel 1976). Because temporal shifts in M. leidyi blooms have been observed in other regions (Sullivan et al 2001, Costello et al 2006, we evaluated whether similar shifts have occurred in the Chesapeake Bay. In addition, we determine particulate organic carbon (POC) transfers within the local food web in order to evaluate the potential impact of gelatinous zooplankton blooms on carbon cycling within estuarine ecosystems.…”

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confidence: 97%

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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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Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 86%

Section: Influence Of Climate On Mnemiopsis Leidyi Bloomsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 96%

mentioning

confidence: 97%

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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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“…Gelatinous species with short generation times such as ctenophores (Sullivan et al, 2001) siphonophores ) and pelagic tunicates (Purcell & Madin, 1991), have the ability to make use of aggregation for reproductive purposes to maintain and/or increase their population density. In this study, field observations indicated that salmon net pens can effectively act as a physical barrier to salp movement, promoting the clogging, increasing local salp aggregations.…”

Section: Discussionmentioning

confidence: 99%

Massive salp outbreaks in the inner sea of Chiloe Island (Southern Chile): possible causes and ecological consequences

Giesecke¹,

Clément²,

Garces-Vargas³

et al. 2014

lajar

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ABSTRACT. During 2010 several massive salp outbreaks of the Subantarctic species Ihlea magalhanica were recorded in the inner sea of Chiloé Island (ISCh, Southern Chile), affecting both phytoplankton abundance and salmon farmers by causing high fish mortality. First outbreaks were recorded during February 2010 when Ihlea magalhanica reached up to 654,000 ind m -3 close to the net pens in Maillen Island and consecutive outbreaks could be followed during March and from October to November 2010. One month prior to the first recorded salp outbreak, the adjacent oceanic region and ISCh showed a sharp decline of ca. 1.0ºC in sea surface temperature and an atypical pattern of oceanic sea surface currents, changing from a predominantly meridional (northward) to a zonal (eastward) direction, probably causing a massive Subantarctic Water parcel to enter the ISCh. During the outbreaks, surface chlorophyll concentration decreased from an historical mean of 13.8 to less than 4 mg Chl-a m -3, and did not return to normal conditions throughout the entire year, and similar results were also observed in phytoplankton abundance. The abundance of salp aggregations were highest close to the salmon net pens, which acted as physical barriers, and may have favored the successful reproduction and persistence of the outbreaks during 2010. The possible impact of these outbreaks on phytoplankton quality and quantity, as well as potential scenarios for the development of further outbreaks is discussed.

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Eutrophication and the macroscope

Nixon

2009

Eutrophication in Coastal Ecosystems

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Timing and size of blooms of the ctenophore Mnemiopsis leidyi in relation to temperature in Narragansett Bay, RI

Cited by 68 publications

References 21 publications

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

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

Massive salp outbreaks in the inner sea of Chiloe Island (Southern Chile): possible causes and ecological consequences

Eutrophication and the macroscope

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