Prey selection by the cyclopoid copepods <i>Mesocyclops edax</i> and <i>Cyclops vicinus</i>

Brandl, Z.; Fernando, C. H.

doi:10.1080/03680770.1977.11896905

Cited by 33 publications

(31 citation statements)

References 8 publications

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“…The predation rates of C. vicinus show a strong succession through the spring period and this corresponds to changes in the relative abundance of the pelagial species. The rates in the Římov Reservoir are generally lower in comparison with those in Slapy Reservoir (BRANDL and FERNANDO, 1978) or Lake Constance (PLASSMANN et al, 1997). However, experiments with a natural multispecies community recorded lower predation rates in general, compared with laboratory based single-species experiments (PLASSMANN et al, 1997).…”

Section: Discussionmentioning

confidence: 86%

“…One of the most important invertebrate predators, Cyclops vicinus, is a regular presence in the zooplankton communities of many lakes and reservoirs (BRANDL and FERNANDO, 1978;BRANDL et al, 1989;PLASSMANN et al, 1997). It is often referred to as a predator of many components of zooplankton communities where rotifers are in a central position (WILLIAMSON, 1983;WALZ, 1995).…”

Section: Introductionmentioning

confidence: 97%

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Regulation of Rotifer Community by Predation of Cyclops vicinus (Copepoda) in the Římov Reservoir in Spring

Devetter¹,

Seďa

2006

International Review of Hydrobiology

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The structuring role and predation impact of Cyclops vicinus on the rotifer community was studied using in situ enclosure experiments in Římov Reservoir during the spring of 2000. Seasonal changes in abundance and birth rates of the rotifer species Synchaeta lakowitziana, Polyarthra spp., Keratella cochlearis and Kellicottia longispina were related to predation pressure, i.e. selectivity and cropping rates of C. vicinus. All four rotifer species were found to be consumed by C. vicinus whose predation rates showed a marked succession through the spring period and corresponded to changes in the relative abundance of the pelagic species. The highest predation rates exhibited by C. vicinus were on Synchaeta lakowitziana and Polyarthra spp., being 11.3 and 6.4 ind Cyclops -1 day -1 respectively. The activity of the predator switched among three types of preferred food during the spring period. The most preferred, Synchaeta, was replaced by Polyarthra after Synchaeta became extinct and these species were replaced by Keratella when both soft-bodied forms were not available in sufficient quantities. Loricated species (K. cochlearis and K. longispina) were consumed at a slower rate. We calculated the proportion of rotifer production cropped day -1 in order to estimate the predation impact of C. vicinus, which ranged from 11.6 to more than 100% over time and rotifer species. This shows that relative predation impact can be high not only on species most strongly selected, but also on species which are not selected.

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Section: Discussionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 97%

Regulation of Rotifer Community by Predation of Cyclops vicinus (Copepoda) in the Římov Reservoir in Spring

Devetter¹,

Seďa

2006

International Review of Hydrobiology

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“…Quantitative data are scarce and are mostly derived from field studies or laboratory enclosures [Brandl & Fernando, 1978;Gilbert & Williamson, 1978;Williamson, 1980;Williamson & Gilbert, 1980;Williamson, 1984;Zankai, 1984]. The available data suggests that Polyarthra, Pompholyx, Brachionus, Asplanchna, Synchaeta, Filinia and Keratella quadrata are a substantial component of the diet of cyclopoid copepods.…”

Section: Predationmentioning

confidence: 95%

“…Selection for smaller specimens of a given prey species has also been observed. Smaller B. angularis suffered a three times higher predation rate by Cyclops vicinus than the bigger specimens [Brandl & Fernando, 1978].…”

Section: Predationmentioning

confidence: 99%

The analysis of planktonic rotifer populations: A plea for long-term investigations

Herzig¹

1987

Rotifer Symposium IV

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Short-term species succession, and long-term community development, of planktonic rotifer populations of the temperate zone and factors influencing species' abundance (ie., physical and chemical limitations, food and exploitative competition, mechanical interference competition, predation, parasitism) are described and discussed. The long-term development of plankton communities in three European lakes is described and the major events are discussed in relation to ecological interactions. Frequently, the shortcomings of our knowledge about population ecology and ecophysiology of rotifers prevent explanations of short-term and, especially, of long-term developments of these plankton organisms. The need for qualitative and quantitative observations in the field and in the laboratory over long periods becomes obvious.

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“…vicinus were reported to prefer juvenile calanoid copepods to Daphnia (PAPINSKA, 1985;BRANDL and FERNANDO, 1978). Mesocyclops edax can hardly capture and ingest Daphnia, which has a broad, hard carapace and displays an active escape response (WILLIAMsoN, 1983).…”

Section: Discussionmentioning

confidence: 99%

Seasonal changes in abundance and vertical distribution of Mesocyclops thermocyclopoides, Cyclops vicinus and Daphnia longispina in Lake Biwa.

Kawabata

1989

Jpn. J. Limnol.

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Prey selection by the cyclopoid copepods Mesocyclops edax and Cyclops vicinus

Cited by 33 publications

References 8 publications

Regulation of Rotifer Community by Predation of Cyclops vicinus (Copepoda) in the Římov Reservoir in Spring

Regulation of Rotifer Community by Predation of Cyclops vicinus (Copepoda) in the Římov Reservoir in Spring

The analysis of planktonic rotifer populations: A plea for long-term investigations

Seasonal changes in abundance and vertical distribution of Mesocyclops thermocyclopoides, Cyclops vicinus and Daphnia longispina in Lake Biwa.

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