Results 81 to 90 of about 5,195 (227)
A Study on Zooplankton of a Grass Carp Nursing Pond
This study was conducted in an earthen pond having an area of 0.61 ha and a depth of 1 meter Five-day-old grass çarp larvae were stocked at a rate of 100000/ha in the pond.
Mine Uzbilek Kırkağaç
doaj +1 more source
The Aggregation of Fish in the Metalimnion Constrains Zooplankton Diel Vertical Migration
ABSTRACT The role of fish predation in zooplankton diel vertical migration (DVM) is well established, where zooplankton move to deep waters during the day—to hide from visual predators in surface layers—and return to the epilimnion at night (i.e., ‘normal’ DVM), to feed on phytoplankton.
Riwan Leroux +3 more
wiley +1 more source
The Three Gorges Reservoir was filled at 1 june., 2003. The water level of the reservoir rose up to 135m. The lotic river ecosystem evolved into relative lentic reservoir ecosystem before the dam.
Xue Jun-Zeng +4 more
core
The diel vertical migration (DVM) of planktonic cladocerans and copepods was investigated in Lake Ştiucii, a natural shallow lake from north-western Romania.
Karina P. Battes, Laura Momeu
doaj +1 more source
Widespread Aquatic Insect Responses to Recent Warming in Swiss Mountain Lakes
Chironomids in surface sediment from 24 Swiss mountain lakes were studied and compared with surveys conducted on the same lakes in 1993/2002 to assess biological responses to recent climate warming. Most lakes show significant shifts in this important group of aquatic insects towards assemblages typical of warmer conditions, while a subset exhibits ...
Maja Damber +9 more
wiley +1 more source
Para definir o efeito do seston como fonte de alimento para Ceriodaphnia cornuta e Diaphanosoma spinolosum durante a enchente no lago Catalao (Amazonia Central) foram desenvolvidos experimentos gin situh, utilizando a variacao natural de ƒÂ13C e ƒÂ15N ...
Pedro Caraballo +3 more
doaj
Abstract The efficiency of feed use in aquaculture may be improved by integrating the culture of extractive species into fed‐species systems. This study assessed the impact of including curimba (Prochilodus lineatus) in tambaqui (Colossoma macropomum) production during the grow‐out phase in earthen ponds.
Adriana Ferreira Lima +4 more
wiley +1 more source
Environmental factors have a varied impact on the development of juvenile and adult Cladocera, depending on their different physiological conditions and body size.
Małgorzata Adamczuk
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Abstract This study aimed to identify species compositions that use resources more efficiently and recommend management practices for extensive and semi‐intensive pond polyculture by modeling food webs and calculating performance indicators. We monitored 8 polyculture fish ponds managed by fish farmers that had contrasting fish species compositions in ...
Purco Ralaiarison Ralien +13 more
wiley +1 more source
Appendix A. List of cladocerans and rotifers observed at 70 wetlands in the Great Lakes basin.
List of cladocerans and rotifers observed at 70 wetlands in the Great Lakes ...
Vanessa L. Lougheed (2903060) +1 more
core +1 more source

