Results 11 to 20 of about 1,089 (168)

????? ?????? ??? ??????? ?????? ?? ?????? ??????? ?????? ???????? (Ceratophyllum demersum) ?? ??? ?????? ??? ???? ??? ??????

open access: yesمجلة علوم ذي قار, 2019
The present study deal with measuering the concentration of two from the trace elements (Pb and Co) in water(dissolved and particulate) phase and their concentration in aquatic plant ( Ceratophyllum demersum ) in the Euphrates River at   Suq-Alshyoukh ...
باسم يوسف الخفاجي   +1 more
doaj   +6 more sources

Superação de dormência de sementes de Ceratophyllum demersum Dormancy break of Ceratophyllum demersum seeds

open access: yesPlanta Daninha, 2005
Dentre as várias plantas daninhas aquáticas imersas que proliferam nos reservatórios de usinas hidrelétricas, destaca-se em importância Ceratophyllum demersum, devido à sua grande capacidade de reprodução e produção de biomassa.
N.V. Costa   +4 more
doaj   +2 more sources

Size-Dependent Habitat Selection in a Tropical Freshwater Crayfish: Preference for Vegetated Refugia. [PDF]

open access: yesEcol Evol
Young freshwater crayfish need shelter to survive, but it is often unclear whether they actively choose safe habitats or simply remain where they are found. We show that craylings and juvenile red claw crayfish prefer vegetated habitats over bare sand or gravel, and that this preference becomes stronger as crayfish grow.
Heide M   +4 more
europepmc   +2 more sources

Aquatic Ecosystem Deterioration and Its Potential Drivers in a Floodplain Lake in the Lower Yellow River Area, North China. [PDF]

open access: yesEcol Evol
This study employed Landsat imagery and Support Vector Machine to extract spring and summer aquatic vegetation distribution in Dongping Lake, combined with field survey data and environmental factors to analyze its succession over the past 40 years. Redundancy Analysis was then used to investigate the factors driving aquatic ecosystem deterioration ...
Chen Y   +5 more
europepmc   +2 more sources

Ceratophyllum platyacanthum subsp. oryzetorum (Kom.) Les (Ceratophyllaceae): an addition to the flora of India from Kashmir Himalaya [PDF]

open access: yesCheck List, 2015
Ceratophyllum platyacanthum Cham. subsp. oryzetorum (Kom.) Les (Ceratophyllaceae) is recorded for the first time from Kashmir Himalaya and India. The species differs from its closely related taxon, Ceratophyllum demersum, in having smaller leaves and the
Aijaz Ganie   +4 more
doaj   +3 more sources

Habitat-Based Predictions of Bridle Shiner (<i>Notropis bifrenatus</i>) in the Northeastern United States. [PDF]

open access: yesEcol Evol
We developed local and regional models for Maine and New Hampshire that may be used to focus bridle shiner (Notropis bifrenatus) surveys on areas with high predicted habitat suitability. This is significant because bridle shiners receive protection or concern status in thirteen states and two Canadian provinces: Limited data show that bridle shiners ...
Katz LS   +4 more
europepmc   +2 more sources

Design and Manufacture of Machine for Removing Ceratophyllum Demersum and Other Plankton in Rivers

open access: yesIraqi Journal of Industrial Research, 2022
Ceratophyllum plant covers most waterways, including lined channels and trenches. This plant causes a loss in the amount of runoff, velocity of water in the channels, and reduces the drainage rates.
Sameh Qahtan Al-Najjar   +4 more
doaj   +1 more source

The production bioethanol from Ceratophyllum demersum L . in Iraq

open access: yesمجلة علوم ذي قار, 2023
Biofuels have attracted a lot of attention due to the growing demand for energy resources and concerns about greenhouse gas emissions. Unlike other green energy resources, biofuels like bioethanol, can provide liquid fuels that is essential for ...
Dmoua kamil AL Zaidi   +1 more
doaj   +1 more source

Новые находки водных растений на территории Ханты-Мансийского автономного округа – Югры

open access: yesTurczaninowia, 2015
В ходе полевых работ на территории ХМАО – Югры было отмечено 8 новых видов водных растений (Scirpus tabernaemontani, Typha laxmannii, Ceratophyllum platyacanthum, Lemna gibba, Lemna turionifera, Potamogeton wolfgangii, Potamogeton heterophyllus ...
N. L. Pankova
doaj   +1 more source

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