Results 61 to 70 of about 6,982 (99)

Environmental DNA: Preliminary Characterization of Microbiota in Three Sicilian Lakes

Ecology and Evolution
Freshwater ecosystems play a key role in biogeochemical cycles and face various anthropogenic impacts. Understanding microbial communities within these ecosystems is crucial for ecosystem management and conservation.
Manuela Mauro, Valeria Villanova, Mario Lo Valvo, Rosa Alduina, Slobodanka Radovic, Aiti Vizzini, Grazia Orecchio, Francesco Longo, Rosario Badalamenti, Vincenzo Ferrantelli, Gaetano Cammilleri, Annamaria Mauro, Vincenzo Arizza, Mirella Vazzana   +13 more
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Analysis and Interpretation of Freshwater Fisheries Data

2007
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Substitutability of Freshwater and Non‐Freshwater Sources in Irrigation: an Econometric Analysis

American Journal of Agricultural Economics, 2020
Population growth is increasing the scarcity of freshwater for irrigation and accelerating its replacement with non‐freshwater sources such as treated wastewater and brackish water. Although these substitutes may be less productive agronomically, their supply is usually more stable.
Israel Finkelshtain, Iddo Kan, Mickey Rapaport‐Rom   +2 more
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Multifractal analysis of the species structure of freshwater hydrobiocenoses

Biology Bulletin, 2012
The principles and methods of fractal analysis of the species structure of freshwater phytoplankton, zooplankton, and macrozoobenthos communities of plain water reservoirs and urban waterbodies are discussed. The theoretical foundation and experimental verification are provided for the authors' concept of self-similar (quasi-fractal) nature of the ...
D B, Gelashvili, D I, Iudin, V N, Iakimov, L A, Solntsev, G S, Rozenberg, G V, Shurganova, A G, Okhapkin, N A, Startseva, D A, Pukhnarevich, M S, Snegireva   +9 more
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Freshwater Foraminiferans Revealed by Analysis of Environmental DNA Samples

Journal of Eukaryotic Microbiology, 2003
ABSTRACT. Sediment‐dwelling protists are among the most abundant meiobenthic organisms, ubiquitous in all types of aquatic ecosystems. Yet, because their isolation and identification are difficult, their diversity remains largely unknown. In the present work, we applied molecular methods to examine the diversity of freshwater Foraminifera, a group of ...
Holzmann, Maria, Habura, Andrea, Giles, Hannah, Bowser, Samuel S., Pawlowski, Jan Wojciech   +4 more
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AN ECONOMIC ANALYSIS OF FRESHWATER FISH CULTURE

Madras Agricultural Journal, 1983
Total cost of production per hectare of pond was Rs. 13,983/-for Pond A and Rs.6.660/- for Pond B. The culture' method followed was intensive one in the case of Pond A condi- tion while it was semi-intensive one in the case of Pond 8 condition. One hectare of Pond yielded 5060 kg of fish under Pond A condition white it was 1340 kg under Pond B condi ...
DEVARAJAN S, SUKUMARAN N, NATARAJANI P
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A biogeographical analysis of the freshwater plants of Australasia

Australian Systematic Botany, 1996
Patterns in the distribution of Australasian species of freshwater aquatic plants were sought, to determine whether vicariance, distance dispersal, local speciation, or a mixture of these could best explain the distribution. The distribution was recorded from 10 regions of Australasia that include sizeable areas of wetland: Papua New Guinea, Cape York ...
SWL Jacobs, KL Wilson
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ANALYSIS OF IMPORTANT FRESHWATER AND MARINE TOXINS

Analytical Letters, 2002
This review summarises the various methods of analytical determinations of freshwater and marine toxins. It encompasses the plethora of techniques including HPLC, RIA, CE-MS, ELISA, bioassay and immunosensors. The review intends to compare the detection limits, methods used and working ranges. In addition it touches upon the limitations associated with
Miloslav Pravda, Mark P. Kreuzer, George G. Guilbault   +2 more
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Tipping point analysis of European freshwater accounts

Chaos: An Interdisciplinary Journal of Nonlinear Science
In this paper, European freshwater accounts are studied and analyzed to identify how freshwater volumes are distributed around Europe and how they have changed in the past few decades. Specifically, a drought event in the United Kingdom is analyzed, when water abstraction in the 1990s was reduced at a fast pace, changing to a different system state ...
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Freshwater consumption in Kuwait: analysis and forecasting

Journal of Water Supply: Research and Technology-Aqua, 2008
With the rapid growth of population coupled with increasing urbanization and agriculture, the demand for water in Kuwait is continually on the increase. The main water source in the State of Kuwait is from desalination with small quantities from underground aquifers.
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