The respiration rate of the resting eggs of Leptodora kindti (Focke 1844) and Bythotrephes longimanus Leydig 1860 (Crustacea, Cladocera) at environmentally encountered temperatures

Andrew, T. E.; Herzig, Alois

doi:10.1007/bf00376877

Cited by 40 publications

(13 citation statements)

References 6 publications

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“…In other systems, copepod eggs at a depth of approximately 10 cm are in the order of a few decades old [30] and marine copepod eggs as old as 70 years can be viable [30][31][32]. The long-term survival of resting eggs is limited by the storage of energy and the metabolic rate and hence can be prolonged by oxygen deficiency and low temperature because anoxia can completely arrest metabolism [33][34][35].…”

Section: Discussionmentioning

confidence: 99%

Oxygenation of anoxic sediments triggers hatching of zooplankton eggs

et al. 2015

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Many coastal marine systems have extensive areas with anoxic sediments and it is not well known how these conditions affect the benthic-pelagic coupling. Zooplankton lay their eggs in the pelagic zone, and some sink and lie dormant in the sediment, before hatched zooplankton return to the water column. In this study, we investigated how oxygenation of long-term anoxic sediments affects the hatching frequency of dormant zooplankton eggs. Anoxic sediments from the brackish Baltic Sea were sampled and incubated for 26 days with constant aeration whereby, the sediment surface and the overlying water were turned oxic. Newly hatched rotifers and copepod nauplii ( juveniles) were observed after 5 and 8 days, respectively. Approximately 1.5 Â 10 5 nauplii m 22 emerged from sediment turned oxic compared with 0.02 Â 10 5 m 22 from controls maintained anoxic. This study demonstrated that re-oxygenation of anoxic sediments activated a large pool of buried zooplankton eggs, strengthening the benthic-pelagic coupling of the system. Modelling of the studied anoxic zone suggested that a substantial part of the pelagic copepod population can derive from hatching of dormant eggs. We suggest that this process should be included in future studies to understand population dynamics and carbon flows in marine pelagic systems.

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Section: Discussionmentioning

confidence: 99%

Oxygenation of anoxic sediments triggers hatching of zooplankton eggs

et al. 2015

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“…All known dinocysts and green algal zygospores have diameters less than 200 microns, and most are smaller than 100 microns across; in contrast, the egg and diapause cysts of animals often exceed 100 microns, and cyst diameters of 300-400 microns or more are common (compilation in Cohen et al, 2009). Observed differences find explanation in function: the size of algal cells is limited by diffusion (Beardall, 2009), whereas the large size of many animal resting eggs reflects metabolic provisioning for potentially long intervals of dormancy (Andrew and Herzig, 1984). Thus, the argument that large Ediacaran acanthomorphs are algal requires that one address the physiological question of why Ediacaran algal cells should have routinely reached sizes that their modern counterparts do not.…”

Section: Discussionmentioning

confidence: 99%

Ediacaran Microfossils from the Ura Formation, Baikal-Patom Uplift, Siberia: Taxonomy and Biostratigraphic Significance

Сергеев

Knoll

Воробьева

2011

Journal of Paleontology

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“…Dzyuban (1979) gave some information on the vertical distribution of Bythotrephes in reservoirs along the Volga. Field and laboratory work on the resting eggs of B. longimanus has been carried out by Andrew & Herzig (1984) and Herzig (1985) . In addition to these specific studies, some information on the ecology of B .…”

Section: Introductionmentioning

confidence: 99%

Life history characteristics and distribution of Bythotrephes longimanus Leydig (Crustacea, Onychopoda) in the Biesbosch reservoirs

Ketelaars¹,

Wagenvoort²,

Herbst³

et al. 1995

Hydrobiologia

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The diel and horizontal distributions of Bythotrephes longimanus Leydig, Leptodora kindti (Focke) and Anomopoda (cladocerans), as well as several life history parameters of each developmental stage of B. longimanus were studied in the non-stratified Biesbosch reservoirs . Anomopoda avoided the surface layer during the day only in the pelagic zone . In the surface layer near the shore, however, they were very abundant . Because densities in the pelagic zone during the day were very low, and high during the night, the population undoubtedly moved from the littoral zone or from the sediments to the pelagic . Accumulation of zooplankton at the littoral site is either the result of random dispersal or wind-induced movements . Bythotrephes' diel distribution pattern is possibly related to that of their prey, the anomopods . Leptodora mostly exhibited a `normal' diel vertical migration with a small amplitude . Wind most likely influenced the horizontal distribution of the zooplankton . Bythotrephes body length increased with higher temperatures, whereas spine length was constant throughout the year . Bythotrephes can already be fertile in the first developmental stage, indicating that a rapid adaptation to a favourable environment is possible . The number of parthenogenetically produced eggs per ovigerous female was higher at the start of the growing season and constant throughout the rest of the year . Relatively few resting eggs and males were found in autumn .

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The respiration rate of the resting eggs of Leptodora kindti (Focke 1844) and Bythotrephes longimanus Leydig 1860 (Crustacea, Cladocera) at environmentally encountered temperatures

Abstract: Respiration rates of the resting eggs of Leptodora kindti and Bythotrephes longimanus were measured in the laboratory at temperatures between 2.4 and 6.2° C. Results are used to explore the relationships between the duration of dormancy and egg size in the natural habitat.

Cited by 40 publications

References 6 publications

Oxygenation of anoxic sediments triggers hatching of zooplankton eggs

Oxygenation of anoxic sediments triggers hatching of zooplankton eggs

Ediacaran Microfossils from the Ura Formation, Baikal-Patom Uplift, Siberia: Taxonomy and Biostratigraphic Significance

Life history characteristics and distribution of Bythotrephes longimanus Leydig (Crustacea, Onychopoda) in the Biesbosch reservoirs

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