The nutritional ecology of the ctenophore <i>Bolinopsis vitrea</i>: comparisons with <i>Mnemiopsis mccradyi</i> from the same region

Kremer, Patricia; Reeve, M. R.; Syms, Mary Ann

doi:10.1093/plankt/8.6.1197

Cited by 46 publications

(20 citation statements)

References 20 publications

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“…Thus, the feeding rate of B. infundibulum also reached satiation. This phenomenon has been observed for lobate ctenophores in previous studies (Reeve and Walter 1978;Kremer 1979) but has seldom been recognized for its importance in, for example, energy budgets.…”

Section: Discussionmentioning

confidence: 56%

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Predation efficiency in visual and tactile zooplanktivores

Sørnes

Aksnes

2004

Limnology & Oceanography

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Gelatinous zooplanktivores (medusae, siphonophores, and ctenophores) and visual zooplanktivores (fish) interact through competition, predation, and commensalism. In the search for key factors governing the outcome of competition, we examined the instantaneous predation efficiency and its light dependency. The visual predator Gobiusculus flavescens and the tactile predator Bolinopsis infundibulum were used as experimental models for the two predation modes. The predation rate of G. flavescens was adequately described by Holling's curvilinear disc equation, and that of B. infundibulum was proportional to prey density. However, because of superfluous feeding, the feeding rate of B. infundibulum differed from the predation rate and approached the asymptotic limitation at high prey levels. The predation rate was reduced for G. flavescens at irradiances Ͻ5-10 mol photons m Ϫ2 s Ϫ1, whereas light had no significant impact on the feeding pattern of B. infundibulum. Provided sufficient light, the predation rate of G. flavescens was several orders of magnitude higher than that of B. infundibulum. These results are consistent with the results of other studies, which suggests that the maximum clearance rate (C max ) of visual and tactile predators is described by the power functions C max ϭ 3.42 ϫ 10 Ϫ7 L 2.94 and C max ϭ 6.02 ϫ 10 Ϫ8 L 1.77 , respectively, where L is the length of the organisms in centimeters. We conclude that visual predation is most efficient at high visibility and low prey densities. As visibility decreases and prey density increases, the competitive efficiency of tactile predators increases.

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Section: Discussionmentioning

confidence: 56%

“…For fish, ctenophores, and medusae, d and e were approximated by 5.62 ϫ 10 Ϫ4 and 3.09 (Pepin 1995), 0.127 and 2.17 (Kremer et al 1986), and 0.002 and 2.90 (Båmstedt 1990), respectively.…”

Section: Fitting Of the Functional Response Curves-thementioning

confidence: 99%

Predation efficiency in visual and tactile zooplanktivores

Sørnes

Aksnes

2004

Limnology & Oceanography

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“…However, they (Table S1 shows sources of copepod and fish data). also differ in their life history strategies (38), metabolic demands (39), and physical tolerance. Each of these differences may contribute to the apparent ability of M. leidyi to better exploit coastal prey populations than does Bolinopsis spp.…”

Section: Discussionmentioning

confidence: 99%

Stealth predation and the predatory success of the invasive ctenophore Mnemiopsis leidyi

Colin

Costello

Hansson

et al. 2010

Proc. Natl. Acad. Sci. U.S.A.

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In contrast to higher metazoans such as copepods and fish, ctenophores are a basal metazoan lineage possessing a relatively narrow set of sensory-motor capabilities. Yet lobate ctenophores can capture prey at rates comparable to sophisticated predatory copepods and fish, and they are capable of altering the composition of coastal planktonic communities. Here, we demonstrate that the predatory success of the lobate ctenophore Mnemiopsis leidyi lies in its use of cilia to generate a feeding current that continuously entrains large volumes of fluid, yet is virtually undetectable to its prey. This form of stealth predation enables M. leidyi to feed as a generalist predator capturing prey, including microplankton (approximately 50 μm), copepods (approximately 1 mm), and fish larvae (>3 mm). The efficacy and versatility of this stealth feeding mechanism has enabled M. leidyi to be notoriously destructive as a predator and successful as an invasive species.feeding current | flow | predator | prey | biological invasions T he planktonic predator, Mnemiopsis leidyi (Fig.

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“…(Bailey et al 1994) and 8 % per day in Beroe ovata (Kremer et al 1986a)l. Assumptions: assimilation efficiency = 75% ; DW in ctenophores = 4 % of WW; carbon content in B. infundibulum calculated from regressions in Bailey et al (1994) The calculated metabolic demand of B. infundibulum is equivalent to 0 4 to 0.9% of the standing stock of zooplankton carbon in the upper 20 m in the penod June to August. Applying a clearance rate for the closely related Bolinopsis vitrea (14.5 1 mg-' C d-l; Kremer et al 1986b), the ingestion by B. infundibulum in June to August equals 2 to 7 % of the zooplankton carbon in the upper 20 m, and 0.4 to 1 "/, of the zooplankton carbon in the total fjord. These values are low compared with other studies in which ctenophores were found to affect their prey populations (Bishop 1967, Deason & Smayda 1982, W~lliams & Collins 1985.…”

Section: Seasonal Variations Of Ctenophoresmentioning

confidence: 99%

Distributional and seasonal patterns of ctenophores in Malangen, northern Norway

Falkenhaug¹

1996

Mar. Ecol. Prog. Ser.

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Annual cycles of abundance of the ctenophore species Bolinopsis ~nfundibulum and Beroe cucumls wel-e studied in the Malangen fjord, northern Norway, during 1992. The seasonal dynamics were characterized by alternating abundances of the 2 species A biomass increase of B infundibulum occurl-ed in April and May, I-eaching a peak of 2 to 7 m1 m-.' wet volume in the surface layers in summer. The specles started to reproduce in the inner part of the fjord, and then propagated throughout the entire fjord system. Length frequency distributions indicated that B. infundibulum were reproducing continuously d u n n g the summer months. Biovolumes of B. infundibulum decreased in August, leaving a small number of individuals (

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The nutritional ecology of the ctenophore Bolinopsis vitrea: comparisons with Mnemiopsis mccradyi from the same region

Cited by 46 publications

References 20 publications

Predation efficiency in visual and tactile zooplanktivores

Predation efficiency in visual and tactile zooplanktivores

Stealth predation and the predatory success of the invasive ctenophore Mnemiopsis leidyi

Distributional and seasonal patterns of ctenophores in Malangen, northern Norway

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