Laboratory culture of the lobate ctenophore Mnemiopsis mccradyi with notes on feeding and fecundity

Baker, Linda D.; Reeve, M. R.

doi:10.1007/bf00389086

Cited by 95 publications

(82 citation statements)

References 5 publications

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“…A similar reproductive cycle has been shown for M. mccradyi reared in the laboratory (Baker & Reeve 1974). Pleurobrachia bachei has been also reported to spawn daily (Hirota 1972).…”

Section: Reproductive Characteristics Of Bolinopsis Mikadosupporting

confidence: 64%

“…0.7 mm (Fig. 1) is 2.4-to 6.2-fold of those of M. leidyi and Mnemiopsis mccradyi calculated using egg diameters of 0.42Ϯ0.068 mm for the former (Kremer 1975) and 0.38-0.52 mm for the latter species (Baker & Reeve 1974). This is consistent with the fact that the individual egg carbon weight of 0.57 mg for B. mikado is 5.7-fold of the 0.1 mg for M. mccradyi estimated by Reeve et al (1989).…”

Section: Reproductive Characteristics Of Bolinopsis Mikadomentioning

confidence: 75%

“…Since many ctenophores are capable of self-fertilization (e.g. Baker & Reeve 1974), hatched larvae of B. mikado were also observed in the bottle. Thus, we counted the hatched larvae and eggs.…”

Section: Measurement Of Egg Production Ratementioning

confidence: 99%

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Reproductive characteristics of the lobate ctenophore Bolinopsis mikado (Moser)

Kasuya

Ishimaru

Murano

2008

Plankton Benthos Res

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“…A similar reproductive cycle has been shown for M. mccradyi reared in the laboratory (Baker & Reeve 1974). Pleurobrachia bachei has been also reported to spawn daily (Hirota 1972).…”

Section: Reproductive Characteristics Of Bolinopsis Mikadosupporting

confidence: 64%

Section: Reproductive Characteristics Of Bolinopsis Mikadomentioning

confidence: 75%

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Reproductive characteristics of the lobate ctenophore Bolinopsis mikado (Moser)

Kasuya

Ishimaru

Murano

2008

Plankton Benthos Res

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“…Large individuals raised under higher food concentration than used here are capable of producing up to 9900 eggs per day (Baker & Reeve 1974), while a 10 ml individual would have produced about 3000 eggs in our trials at mesozooplankton densities of 45 l -1 (Fig. 3b).…”

Section: Discussionmentioning

confidence: 82%

Growth and reproduction of gelatinous zooplankton exposed to low dissolved oxygen

Grove¹,

Breitburg²

2005

Mar. Ecol. Prog. Ser.

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The lobate ctenophore Mnemiopsis leidyi and the scyphomedusan jellyfish Chrysaora quinquecirrha are seasonally important consumers in the food web of Western Atlantic and Gulf of Mexico estuaries, including Chesapeake Bay. The abundance and importance of these gelatinous species may be increasing as a result of anthropogenic alteration of these systems, particularly the increasing severity and extent of low dissolved oxygen. Ctenophores and jellyfish are more tolerant of hypoxia than co-occurring finfish, and can sustain high feeding rates in hypoxic waters. We examined the effects of hypoxia exposure on M. leidyi and C. quinquecirrha growth rates and M. leidyi reproduction over 4 d periods in 1 m 3 mesocosms at a range of natural prey densities. Both small (0.2 to 2.0 ml biovolume) and larger (8.0 to 17.6 ml biovolume) ctenophores had significantly reduced growth at oxygen levels of 1.5 and 2.5 mg l -1 as compared to air-saturated water, especially at high prey densities. Egg production by large ctenophores was also significantly reduced by exposure to low dissolved oxygen concentrations. In contrast, C. quinquecirrha growth rates were unaffected by low dissolved oxygen concentrations tested. These results are counter-intuitive as M. leidyi preferentially utilizes moderately hypoxic bottom waters in the field, while C. quinquecirrha avoids such waters. Our findings suggest that hypoxia may differentially affect population growth of these dominant gelatinous species.

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“…While adult M. leidyi are able to cope with a wide range in temperature (2−32°C) and salinity (2−38, Purcell et al 2001), egg production is dependent on biotic factors such as feeding and environmental conditions (e.g. salinity and temperature) (Baker & Reeve 1974, Reeve et al 1989, Jaspers et al 2011. Possibly, the invasion success of M. leidyi is fostered by hermaphrodite reproduction and high egg production capacity, which can attain >10 000 eggs per day (Reeve et al 1989).…”

Section: Introductionmentioning

confidence: 99%

Population genetics of the invasive ctenophore Mnemiopsis leidyi in Europe reveal source–sink dynamics and secondary dispersal to the Mediterranean Sea

Bolte¹,

Fuentes²,

Haslob³

et al. 2013

Mar. Ecol. Prog. Ser.

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Repeated invasions of European waters by the ctenophore Mnemiopsis leidyi offer a unique opportunity to study population dynamics and dispersal in gelatinous zooplankton. Here we followed population establishment in 2 recently invaded areas, the North and Baltic Seas, and analysed changes in population structure during a 3 yr interval using 7 highly polymorphic microsatellites comprising 191 alleles. A second goal was to reconstruct routes of recent invasive range expansion into the Mediterranean Sea. During the study period (2008 to 2010), populations in the North Sea and Western Baltic Sea maintained their allelic composition with virtually unchanged levels of genetic diversity and between-population differentiation, demonstrating limited gene flow between the 2 regions and successful reproduction in both areas. In contrast, at the eastern distribution limit in the central Baltic (Bornholm Basin), the same measures fluctuated between years and genetic diversity decreased from 2008 to 2010. In concordance with prior ecological observations, this supports the view that M. leidyi in the central Baltic is a sink population. In the area of recent range expansion (Mediterranean Sea), we observed high population differentiation: pairwise differentiation (F ST ) values between sites in Spain, France and Israel were significant and between 0.04 and 0.16. Despite this differentiation, Bayesian clustering and phylogeographic analysis support the hypothesis that all Mediterranean M. leidyi result from a secondary introduction originating from the Black Sea. Our study contributes to growing evidence that multiple invasions of the same species can vary in their degree of genetic diversity and demonstrates how genetic markers can help to resolve whether gelatinous plankton species form self-sustaining populations.

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Laboratory culture of the lobate ctenophore Mnemiopsis mccradyi with notes on feeding and fecundity

Cited by 95 publications

References 5 publications

Reproductive characteristics of the lobate ctenophore Bolinopsis mikado (Moser)

Reproductive characteristics of the lobate ctenophore Bolinopsis mikado (Moser)

Growth and reproduction of gelatinous zooplankton exposed to low dissolved oxygen

Population genetics of the invasive ctenophore Mnemiopsis leidyi in Europe reveal source–sink dynamics and secondary dispersal to the Mediterranean Sea

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