scholarly journals Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

2020 ◽  
Vol 36 (5) ◽  
pp. 852-861
Author(s):  
Andrea K. Borsodi ◽  
Dóra Anda ◽  
Gergely Krett ◽  
Melinda Megyes ◽  
Kitti Németh ◽  
...  
Keyword(s):  
Water Bodies ◽  
Riverine Water ◽  
River Danube ◽  
Biofilm Bacteria

The microbiological water quality of Vienna’s River Danube section and its associated water bodies

2016 ◽  
Vol 69 (1-2) ◽  
pp. 76-88 ◽  
Author(s):  
Christina Frick ◽  
Wolfgang Zoufal ◽  
Christa Zoufal-Hruza ◽  
Alexander K. T. Kirschner ◽  
Dagmar Seidl ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Bodies ◽  
River Danube ◽  
Microbiological Water Quality

scholarly journals Comparison of trophic structure of the benthic macroinvertebratesin three Bulgarian riverine water bodies

2017 ◽  
Vol 41 ◽  
pp. 267-277 ◽  
Author(s):  
Maria KERAKOVA ◽  
Yordan UZUNOV ◽  
Emilia VARADINOVA
Keyword(s):  
Trophic Structure ◽  
Water Bodies ◽  
Riverine Water

Florida Fertilizer Usage Statistics

EDIS ◽  
2017 ◽  
Vol 2017 (3) ◽  
pp. 3
Author(s):  
Travis W. Shaddox ◽  
Joseph Bryan Unruh
Keyword(s):  
Water Bodies ◽  
Policy Makers ◽  
Fact Sheet ◽  
Close Proximity

Nutrient applications are often required to meet Florida’s demand for agricultural and horticultural commodities, but often those applications occur in close proximity to water bodies. In order for scientists, policy makers, and citizens to make decisions regarding nutrient issues in Florida, it is important to first understand which markets contribute to Florida’s fertilizer consumption. This three-page fact sheet explains Florida’s fertilizer usage statistics. Written by T.W.Shaddox and published by the Environmental Horticulture Department.­http://edis.ifas.ufl.edu/ep541

Redistributing the Population: GIS Adds Value to Historical Demography

1996 ◽  
Vol 8 (2) ◽  
pp. 90-104 ◽  
Author(s):  
Janette Lee
Keyword(s):  
Northern Ireland ◽  
Settlement Pattern ◽  
Historical Demography ◽  
Water Bodies ◽  
Choropleth Mapping ◽  
County Antrim ◽  
Gis Software

A model for more accurately representing the distribution of population is currently under development using some of the functionality of the Arc/Info GIS software. Included are factors for settlement pattern, topography and the presence of water bodies. The model is tested on County Antrim in Northern Ireland and the value of traditional choropleth mapping assessed in comparison with the output from the model.

Identification of sibling species in the genus Eucyclops from water-bodies of Ukraine and Russia using crossbreeding studies

2014 ◽  
Vol 25 (1-2) ◽  
pp. 61-68 ◽  
Author(s):  
V. I. Monchenko ◽  
L. P. Gaponova ◽  
V. R. Alekseev
Keyword(s):  
Cryptic Species ◽  
River Basin ◽  
Black Sea ◽  
Species Complex ◽  
River Basins ◽  
Water Bodies ◽  
Similar Species ◽  
Basin Water ◽  
Different Populations ◽  
Baltic Sea Basin

Crossbreeding experiments were used to estimate cryptic species in water bodies of Ukraine and Russia because the most useful criterion in species independence is reproductive isolation. The problem of cryptic species in the genus Eucyclops was examined using interpopulation crosses of populations collected from Baltic Sea basin (pond of Strelka river basin) and Black Sea basin (water-reservoires of Dnieper, Dniester and Danube rivers basins). The results of reciprocal crosses in Eucyclops serrulatus-group are shown that E. serrulatus from different populations but from water bodies belonging to the same river basin crossed each others successfully. The interpopulation crosses of E. serrulatus populations collected from different river basins (Dnipro, Danube and Dniester river basins) were sterile. In this group of experiments we assigned evidence of sterility to four categories: 1) incomplete copulation or absence of copulation; 2) nonviable eggs; 3) absence of egg membranes or egg sacs 4) empty egg membranes. These crossbreeding studies suggest the presence of cryptic species in the E. serrulatus inhabiting ecologically different populations in many parts of its range. The same crossbreeding experiments were carries out between Eucyclops serrulatus and morphological similar species – Eucyclops macruroides from Baltic and Black Sea basins. The reciprocal crossings between these two species were sterile. Thus taxonomic heterogeneity among species of genus Eucyclops lower in E. macruroides than in E. serrulatus. The interpopulation crosses of E. macruroides populations collected from distant part of range were fertile. These crossbreeding studies suggest that E. macruroides species complex was evaluated as more stable than E. serrulatus species complex.

Sign in / Sign up

Export Citation Format

Share Document