Drivers assessment of zooplankton grazing on phytoplankton under different scenarios of fish predation and turbidity in an in situ mesocosm experiment

Hydrobiologia ◽  
2020 ◽  
Vol 848 (2) ◽  
pp. 485-498
Author(s):  
Diego Frau ◽  
María Florencia Gutierrez ◽  
Florencia Rojas Molina ◽  
Franco Teixeira de Mello
2019 ◽  
Vol 152 ◽  
pp. 104823 ◽  
Author(s):  
Zhengquan Zhou ◽  
Xiaojing Li ◽  
Linlin Chen ◽  
Baoquan Li ◽  
Chuanyuan Wang ◽  
...  

Data in Brief ◽  
2020 ◽  
Vol 32 ◽  
pp. 106255
Author(s):  
Viet Tran-Khac ◽  
Philippe Quetin ◽  
Isabelle Domaizon ◽  
Stéphan Jacquet ◽  
Laurent Espinat ◽  
...  

2016 ◽  
Vol 183 ◽  
pp. 33-40 ◽  
Author(s):  
Yeonjung Lee ◽  
K. Suresh Kumar ◽  
Kitack Lee ◽  
Kyoungsoon Shin ◽  
Ki-Tae Park ◽  
...  

1994 ◽  
Vol 51 (2) ◽  
pp. 450-459 ◽  
Author(s):  
Cathy A. Cowan ◽  
Barbara L. Peckarsky

We studied the feeding and positioning periodicity on natural substrates of the overwintering and fast-growing summer generations of a grazing mayfly, Baetis bicaudatus, in a third-order trout stream and a fishless, first-order tributary in western Colorado. At 4-h intervals over 24-h, we recorded the number of Baetis on stone tops in flow-through enclosures in situ and in streamside circular flow-through chambers. We determined the feeding periodicity of Baetis using abundance of plant pigments as an index of gut fullness. Baetis were nocturnal in the trout stream; more animals were found on stone tops and guts were fuller at night, suggesting that individuals came to stone tops to feed during darkness. However, Baetis from the fishless stream were either aperiodic or weakly nocturnal. We tested the hypothesis that nocturnal feeding by Baetis is a response to the presence of visually feeding trout by conducting transplant experiments in the circular streams. After 24 h, Baetis transferred from the trout stream to fishless water remained strongly nocturnal, while Baetis transferred from the fishless stream to trout water became significantly more nocturnal, suggesting that the risk of fish predation outweighs the benefits of relaxing nocturnal periodicity to feed continuously.


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