Faculty of AgriSciences - list of publicationsHelp


The following list contains all information available to the publication.

ZEMANOVÁ, J. -- ŠORF, M. -- HEJZLAR, J. -- ŠORFOVÁ, V. -- VRBA, J. Planktivorous fish positively select Daphnia bearing advanced embryos. Marine and Freshwater Research. 2020. v. 71, no. 4, p. 505--511. ISSN 1323-1650. URL: http://www.publish.csiro.au/mf/MF18466

Original name:
Planktivorous fish positively select Daphnia bearing advanced embryos
Czech name:
Written by (author):
Jana Zemanová
RNDr. Michal Šorf, Ph.D.
Josef Hejzlar
Vanda Šorfová
Jaroslav Vrba
Department: Department of Zoology, Fisheries, Hydrobiology and Apiculture
Kind of publication:
article in a professional periodical
Periodical: Marine and Freshwater Research
Nature of article:
paper
Volume no. (year): 71
Periodical number within the volume:
4
Year of publication:
2020
Starting page:
505
Up to page:
511
Number of pages:
7
Sub-specification:
článek je obsažen v databázi Web of Science
UT code by Web of Science:
EID code by Scopus:
Form of publication:
printed version
Original language: English
Description in original language:
The top-down effect of fish predation on reproduction success of Daphnia females was investigated in an outdoor mesocosm experiment with natural (oligotrophic) food conditions. The planktivorous fish, sunbleak (Leucaspius delineatus, 4.9 individuals m-3) was introduced into a half of mesocosms after the first sampling of zooplankton to compare daphnid life-history traits with and without fish predators. Our results showed selective fish predation on the daphnid females with advanced developmental stages of embryos. The Daphnia populations exposed to fish exhibited a lower proportion of females with advanced embryos over those with earlier embryonal stages. Fish predators obviously were attracted to more visible females bearing larger embryos, with well-developed pigmented eyes. Simultaneously, we found a smaller daphnid body length in the mesocosms with fish than in those that were fishless. However, the daphnid clutch size did not reflect their body-length pattern and, surprisingly, decreased regardless of fish presence or absence since the first sampling day, probably owing to deterioration of food quality (mean seston carbon: phosphorus ratio TILDE OPERATOR+D91238). Nevertheless, this selective elimination of the females with advanced embryos, together with the overall decrease in daphnid fitness, can strengthen the deceleration of its population growth under fish predation.
Description in English:
Description in Czech:
Year of submission:
2020
Year of transmission:
RIV identification number:
URL:
http://www.publish.csiro.au/mf/MF18466
 
Entry made by:
Last change:
04/03/2020 13:40 (Markéta Hejčová, DiS.)

Evaluation of publication:

1
2
3
4
5
        
1
2
3
4
5
bad
 
good
        
uninteresting
 
interesting
Assessed: 0
Average score: -
        
Assessed: 0
Average score: -
123
4
5
        
1
2
3
4
5
amateur
 
professional        theoretical
 
practical
Assessed: 0
Average score: -        
Assessed: 0
Average score: -


Source specification:

Marine and Freshwater Research. Clayton: ISSN 1323-1650.

Original name:
Marine and Freshwater Research
Czech name:
Written by (author):
Kind of publication:
magazine
ISSN: 1323-1650
Country of publisher:
Australia
Place of publishing: Clayton
Publisher:
CSIRO Publishing
URL:
http://www.publish.csiro.au/mf
Reviewed magazine:
no
Original language: English
Description in original language:
Description in English:
Description in Czech:
 
Entry made by:
Markéta Hejčová, DiS.
Last change:
10/04/2019 09:34 (Šárka Novotná)

Evaluation of publication:

1
2
3
4
5
        
1
2
345
bad
 
good
        
uninteresting
 
interesting
Assessed: 0
Average score: -
        
Assessed: 0
Average score: -
1
23
4
5
        
1
2
3
4
5
amateur
 
professional        
theoretical
 
practical
Assessed: 0
Average score: -
        
Assessed: 0
Average score: -