Results 81 to 90 of about 84,465 (303)

Limnology [PDF]

open access: yesNature, 1936
M. J. Harbaugh, Paul S. Welch
openaire   +2 more sources

Directory of Water Related Courses Offered at Colleges and Universities in Arkansas as of November 1998 [PDF]

open access: yes, 1998
This publication lists the water and water-related courses at several universities and colleges in Arkansas as reported during the Fall of 1 998. It is anticipated that users of this directory will extend beyond college students, and will include ...
Steele, Kenneth F.
core   +2 more sources

Comparison of Conventional, Rake, and Sonar‐Based Biophysical Habitat Measurements in a Shallow Ontario River

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Knowledge of habitat availability is critically important for the management and recovery of freshwater species. Quantifying habitat availability often requires fine‐scale sampling at point‐based locations across a large geographic extent, which can be laboursome.
Karl A. Lamothe   +2 more
wiley   +1 more source

Africa: the FBA connection [PDF]

open access: yes, 1986
Since its inception in the 1930's the Freshwater Biological Association at Windermere, England has been involved in research on African lakes and rivers.
Fryer, G., Talling, J.F.
core  

Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa [PDF]

open access: yes, 2008
The semi-aquatic grasshopper Cornops aquaticum is native to South America and inhabits lowlands from southern Mexico to Central Argentina and Uruguay. It is host-specific to aquatic plants in the genera Eichhornia and Pontederia.
Adis, Joachim   +9 more
core   +2 more sources

A Tool for Prioritizing Gravel Augmentation Reaches for Sediment Starved Rivers

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Gravel augmentation is a widely used restoration technique used to improve habitat below dams, including salmonids spawning habitat. However, gravel augmentation can be cost‐prohibitive, and it is often unclear which stream segments have the highest potential to benefit spawning salmonids.
Patricia J. Wohner   +2 more
wiley   +1 more source

90 éves a Magyar Tudományos Akadémia Ökológiai Kutatóközpont Balatoni Limnológiai Intézete

open access: yesGerundium, 2018
The Lake Balaton Institute of Limnology of the Ecological Research Centre of the Hungarian Academy of Arts and Sciences is 90 years old. The Balaton Limnology Institute of the Hungarian Academy of Arts and Sciences celebrated the 90th anniversary of its ...
László Fésüs
doaj  

Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia

open access: yesActa Scientiarum: Animal Sciences, 2016
The present work aimed at determining the effects of the association between the periphyton-based system with the bioflocs-based system in the intensive culture of juvenile Nile tilapia (1.56 ± 0.07 g; 72 fish m-3), on variables of water quality, growth ...
Davi de Holanda Cavalcante   +3 more
doaj   +1 more source

Cooperative Lakes Area Monitoring Project-West Okoboji Lake, 2007 [PDF]

open access: yes, 2007
Water fact sheet for Iowa Department of Natural Resources and the Geological ...

core  

Terrestrial and fluvial carbon fluxes in a tropical watershed: Nyong basin, Cameroon [PDF]

open access: yes, 2009
The Nyong watershed, with an area of 27 800 km2 and a mean annual discharge of 390 m3 s−1, is the second largest river in Cameroon. The Nyong watershed serves as an outstanding study area for the examination of carbon fluxes in humid tropical ...
Boeglin, Jean-Loup   +6 more
core   +2 more sources

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