Results 101 to 110 of about 18,201 (231)

The Influence of Concentration Liquid Waste of Tofu Production to Daphnia SP Cultivation Biomass [PDF]

open access: yes, 2019
A natural feed of freshwater fish as long as it depends on worms tubifex is hard to be cultivated. Daphnia sp is one of the kinds of Cladocera zooplankton to be an alternative as a natural feed for seed of fish.
Kusuma, B. (Baruna)   +1 more
core  

Zooplankton from Can Giuoc River in Southern Vietnam [PDF]

open access: yes, 2016
In this study, the variables of zooplankton and water quality were investigated in the Can Giuoc River, Southern Vietnam. Zooplankton was monitored in April and September 2015 at 5 sampling sites in the river.
Duc, Pham Anh   +2 more
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Modern lacustrine cladocera and their controlling factors in Western Yunnan, SW China

open access: yesFrontiers in Ecology and Evolution
Plankton is crucial for lake ecosystem health. However, large-scale studies linking zooplankton communities, particularly cladocerans, to environmental factors remain scarce in China and worldwide.
Qi Suo   +8 more
doaj   +1 more source

Preliminary studies on the food and feeding habits of Synodontis membraneceus from Ogobiri River, Nigeria [PDF]

open access: yes, 2013
The food and feeding habits of Synodontis membraneceus of Ogobiri River of Bayelsa State, Nigeria was studied using 44 male and 51 specimens that were bought from fishers in the study area measuring between 5 and 25 cm total length. The Numerical and the
Allison, M.E., Youdubagha, S.E.
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Zooplankton - fish interaction in the littoral zone of Nyanza Gulf, Lake Victoria [PDF]

open access: yes, 1999
The zooplankton community of the littoral zone of Nyanza Gulf, Lake Victoria, was studied between June 1998 and June 1999 to identify and quantify various zooplankton groups, and investigate the interactions that occur between them and the littoral fish ...
Owili, M.
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On the nutrition of the predatory cladocerans Leptodora and Bythotrephes. [Translation of: Byulleten' Institute Biologii Vodokhranilishch 6, pp. 21-22, 1960] [PDF]

open access: yes, 1960
Results of the investigation on certain problems of the nutrition of Leptodora and Bythotrephes in Rybinsk Reservoir (Russia) are reviewed. To clarify the composition of the food of Leptodora and Bythotrephes in this period, experiments were provided on ...
Mordukhai-Boltovskaya, E.D.
core  

Ecological optimum of ectothermic organisms: static-dynamical approach [PDF]

open access: yes, 2007
During 20th century the majority of researchers interpreted ecological optimum as a certain combination of ambient factors which is optimal for growth, existence and reproduction of an organism.
Tamara T. I. Verbitskaya   +1 more
core   +1 more source

Concordance patterns in zooplankton assemblages in the UHE - Luís Eduardo Magalhães reservoir in the Mid-Tocantins river, Tocantins State, Brazil = Padrões de concordância entre grupos zooplanctônicos do reservatório da UHE – Luís Eduardo Magalhães no Médio Tocantins – Estado do Tocatins, Brasil

open access: yesActa Scientiarum: Biological Sciences, 2011
The goal of this study was to evaluate the concordance amongst threezooplankton groups (Rotifera, Cladocera, and Copepoda) and between the zooplankton groups and the environmental variables in the Luis Eduardo Magalhães reservoir, in the Mid-Tocantins ...
Gisele Fernandes Bessa   +4 more
doaj  

Net phytoplankton and zooplankton in the New York Bight, January 1976 to February 1978, with comments on the effects of wind, Gulf Stream eddies, and slope water intrusions [PDF]

open access: yes, 1984
Results are given of monthly net phytoplankton and zooplankton sampling from a 10 m depth in shelf, slope, and Gulf Stream eddy water along a transect running southeastward from Ambrose Light, New York, in 1976, 1977, and early 1978.
Jossi, Jack W., Smith, Daniel E.
core  

Diversity of aquatic organisms in the lowland watercourses: a case study in transboundary rivers, Transbaikalia, Russia

open access: yesNature Conservation Research: Заповедная наука
Planktonic communities have important roles in aquatic ecosystems, including rivers. But studies of plankton organisms in lotic systems are infrequent.
Ekaterina Yu. Afonina   +1 more
doaj   +1 more source

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