Evaluation of Chaoborus predation on natural populations of herbivorous zooplankton in a eutrophic lake

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Evaluation of Chaoborus predation on natural populations of herbivorous zooplankton in a eutrophic lake. / Christoffersen, Kirsten.

In: Hydrobiologia, Vol. 200-201, No. 1, 08.1990, p. 459-466.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Christoffersen, K 1990, 'Evaluation of Chaoborus predation on natural populations of herbivorous zooplankton in a eutrophic lake', Hydrobiologia, vol. 200-201, no. 1, pp. 459-466. https://doi.org/10.1007/BF02530363

APA

Christoffersen, K. (1990). Evaluation of Chaoborus predation on natural populations of herbivorous zooplankton in a eutrophic lake. Hydrobiologia, 200-201(1), 459-466. https://doi.org/10.1007/BF02530363

Vancouver

Christoffersen K. Evaluation of Chaoborus predation on natural populations of herbivorous zooplankton in a eutrophic lake. Hydrobiologia. 1990 Aug;200-201(1):459-466. https://doi.org/10.1007/BF02530363

Author

Christoffersen, Kirsten. / Evaluation of Chaoborus predation on natural populations of herbivorous zooplankton in a eutrophic lake. In: Hydrobiologia. 1990 ; Vol. 200-201, No. 1. pp. 459-466.

Bibtex

@article{149d3860895c4ffbb40d17a854d88293,
title = "Evaluation of Chaoborus predation on natural populations of herbivorous zooplankton in a eutrophic lake",
abstract = "The effect of Chaoborus predation on natural zooplankton communities was tested in enclosure experiments during June, July and August in the eutrophic Frederiksborg Slotss{\o}, Denmark. Natural densities of Chaoborus larvae in enclosures reduced the abundance of copepod nauplii and Chydorus sphaericus with up to 60% and 80%, respectively, compared with controls. In contrast, Chaoborus was not able to suppress populations of Eudiaptomus graciloides and Daphnia cucullata. Predation was strongest during June and decreased thereafter as Chaoborus pupae emerged. Laboratory experiments showed that a considerable part (20-30% of the population day-1) of Chaoborus larvae emerged as pupae at 18-20 °C in July and August. Chaoborus larvae occurred in the lake as migratory individuals from May to September with mean population densities of about 100 larvae m-2. Results from the enclosure experiments suggest that the populations of herbivorous zooplankton in Frederiksborg Slotss{\o} during June, July and August are not controlled by natural populations of Chaoborus larvae.",
keywords = "Chaoborus, enclosure experiments, natural populations, predation",
author = "Kirsten Christoffersen",
year = "1990",
month = aug,
doi = "10.1007/BF02530363",
language = "English",
volume = "200-201",
pages = "459--466",
journal = "Journal of Aquatic Ecosystem Health",
issn = "0018-8158",
publisher = "Springer",
number = "1",

}

RIS

TY - JOUR

T1 - Evaluation of Chaoborus predation on natural populations of herbivorous zooplankton in a eutrophic lake

AU - Christoffersen, Kirsten

PY - 1990/8

Y1 - 1990/8

N2 - The effect of Chaoborus predation on natural zooplankton communities was tested in enclosure experiments during June, July and August in the eutrophic Frederiksborg Slotssø, Denmark. Natural densities of Chaoborus larvae in enclosures reduced the abundance of copepod nauplii and Chydorus sphaericus with up to 60% and 80%, respectively, compared with controls. In contrast, Chaoborus was not able to suppress populations of Eudiaptomus graciloides and Daphnia cucullata. Predation was strongest during June and decreased thereafter as Chaoborus pupae emerged. Laboratory experiments showed that a considerable part (20-30% of the population day-1) of Chaoborus larvae emerged as pupae at 18-20 °C in July and August. Chaoborus larvae occurred in the lake as migratory individuals from May to September with mean population densities of about 100 larvae m-2. Results from the enclosure experiments suggest that the populations of herbivorous zooplankton in Frederiksborg Slotssø during June, July and August are not controlled by natural populations of Chaoborus larvae.

AB - The effect of Chaoborus predation on natural zooplankton communities was tested in enclosure experiments during June, July and August in the eutrophic Frederiksborg Slotssø, Denmark. Natural densities of Chaoborus larvae in enclosures reduced the abundance of copepod nauplii and Chydorus sphaericus with up to 60% and 80%, respectively, compared with controls. In contrast, Chaoborus was not able to suppress populations of Eudiaptomus graciloides and Daphnia cucullata. Predation was strongest during June and decreased thereafter as Chaoborus pupae emerged. Laboratory experiments showed that a considerable part (20-30% of the population day-1) of Chaoborus larvae emerged as pupae at 18-20 °C in July and August. Chaoborus larvae occurred in the lake as migratory individuals from May to September with mean population densities of about 100 larvae m-2. Results from the enclosure experiments suggest that the populations of herbivorous zooplankton in Frederiksborg Slotssø during June, July and August are not controlled by natural populations of Chaoborus larvae.

KW - Chaoborus

KW - enclosure experiments

KW - natural populations

KW - predation

UR - http://www.scopus.com/inward/record.url?scp=0025684395&partnerID=8YFLogxK

U2 - 10.1007/BF02530363

DO - 10.1007/BF02530363

M3 - Journal article

AN - SCOPUS:0025684395

VL - 200-201

SP - 459

EP - 466

JO - Journal of Aquatic Ecosystem Health

JF - Journal of Aquatic Ecosystem Health

SN - 0018-8158

IS - 1

ER -

ID: 281332375