Results 21 to 30 of about 5,289 (181)

Large-Scale Mapping and Predictive Modeling of Submerged Aquatic Vegetation in a Shallow Eutrophic Lake

open access: yesThe Scientific World Journal, 2002
A spatially intensive sampling program was developed for mapping the submerged aquatic vegetation (SAV) over an area of approximately 20,000 ha in a large, shallow lake in Florida, U.S.
Karl E. Havens   +7 more
doaj   +1 more source

EGG PRODUCTION PERFORMANCE OF TWO INDIGENOUS TYPES OF DUCKS OF KERALA [PDF]

open access: yesJournal of Veterinary and Animal Sciences, 1998
A study was conducted to evaluate the egg production performance of two distinct indigenous types of ducks namely Chara and Chemballi of Kerala. Five hundred sexed clay-old female ducklings from each type were reared under semi-intensive system adhering ...
J.D. Mahanta   +2 more
doaj  

A simplified two‐station approach for modeling metabolism in dam tailwaters subject to diel flow variation

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Tailwaters are ubiquitous and highly managed ecosystems whose food webs often rely disproportionately on autochthonous energy. In situ continuous dissolved oxygen data are increasingly being used to estimate gross primary productivity and ecosystem respiration in rivers, but this approach is complicated in tailwaters, where upriver ...
Ian W. Bishop   +5 more
wiley   +1 more source

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

open access: yesBoreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein   +19 more
wiley   +1 more source

Mechanosensing and anesthesia of single internodal cells of Chara

open access: yesPlant Signaling & Behavior
The giant (2–3 × 10−2 m long) internodal cells of the aquatic plant, Chara, exhibit a rapid (>100 × 10−6 m s−1) cyclic cytoplasmic streaming which stops in response to mechanical stimuli.
Manya J. Rodgers, Mark P. Staves
doaj   +1 more source

Chara L.

open access: yes, 2023
Key to the species of Chara in the Northern Territory 1 Plants dioecious...............................................................................2 Plants monoecious...........................................................................7 2 Plant axis entirely ecorticate...........................................................3 Plant ...
Casanova, Michelle T., Karol, Kenneth G.
openaire   +3 more sources

Holocene shoreline displacement and the impact of the Storegga tsunami on Hinnøya, northern Norway

open access: yesBoreas, EarlyView.
The Holocene relative sea‐level (RSL) history of Norway's largest island, Hinnøya, has been investigated in detail, using sediment records from 25 isolation basins. The sediments were analysed for macrofossil and phytoplankton content, which served as the basis for identifying marine–lacustrine transitions, that is isolation contacts. Terrestrial plant
Anders Romundset   +5 more
wiley   +1 more source

REPRODUCTION PERFORMANCE OF TWO TYPES OF INDIGENOUS DUCKS OF KERALA [PDF]

open access: yesJournal of Veterinary and Animal Sciences, 1997
An experiment was carried out to evaluate the reproduction performance of two distinct indigenous types of ducks namely Chara and Chemballi of Kerala. The average AFE in Chara (148.59 days) and Chemballi (147.50) days did not differ significantly.
J.D. Mahanta   +2 more
doaj  

Parasecia chara

open access: yes, 2021
Parasecia chara (Wharton, 1948): NEO Trombicula chara Wharton, 1948 Trombicula (Trombicula) chara, Wharton & Fuller 1952 Fonsecia (Parasecia) chara, Loomis 1966 a Fonsecia (Euneocula) chara, Vercammen-Grandjean 1965d [manueli group] Fonsecia (Parasecia) chara, Brennan 1969c Parasecia chara, Goff 1992a; Bassini-Silva et al ...
Nielsen, David H.   +2 more
openaire   +2 more sources

New records of Chara connivens P. Salzmann ex A. Braun 1835 – an extremely rare and protected species in Polish brackish waters

open access: yesActa Societatis Botanicorum Poloniae, 2015
The stonewort Chara connivens was rediscovered in the Vistula Lagoon in 2011, almost 35 years after its last record. In 2012, the species was recorded for the first time in the Szczecin Lagoon.
Paulina Brzeska   +3 more
doaj   +1 more source

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