Results 21 to 30 of about 239,991 (317)

ESTIMASI ZONA POTENSIAL PENANGKAPAN IKAN (ZPPI) PROVINSI BENGKULU MENGGUNAKAN CITRA SATELIT MODIS AQUA

open access: yesJFMR-Journal of Fisheries and Marine Research, 2019
The research aims to; (1) knowing the traditional parameters of the Bengkulu province community in determining fishing zones, (2) mapping the potential fishing zones (ZPPI) in the West Coast waters of Bengkulu province.
Rina Julita, Mr. Mujiono
doaj   +1 more source

Influence of alcoholic extracts from Helianthus annnus L. roots on the photosynthetic activity of Sinapis alba L. cv. Barka plants

open access: yesActa Agriculturae Scandinavica. Section B, Soil and Plant Science, 2020
Allelopathy substances stimulate or inhibit seed germination, growth and development of plant species living in their neighbouring, or occupying the same place directly after them.
Joanna Puła   +5 more
doaj   +1 more source

Estudo das diferentes formas de fósforo nas águas da plataforma continental do Amazonas Study of different forms of phosphorus in the Amazon continental shelf waters

open access: yesQuímica Nova, 2007
Hydrological samples were collected on the continental shelf of the Amazon river to determine particulate organic and inorganic matter, dissolved organic phosphorus (DOP), phosphate, total particulate phosphorus (TPP), chlorophyll a, temperature ...
Maria de Lourdes Souza Santos   +3 more
doaj   +1 more source

Development of an empirical model for chlorophyll-a and Secchi Disk Depth estimation for a Pampean shallow lake (Argentina) [PDF]

open access: yes, 2017
Shallow Pampean lakes are located in the most productive plain of Argentina. They are highly variable in salinity, turbidity and surface area. Laguna Chascomús has been monitored as a representative example of them.
Bohn, Vanesa Yael   +5 more
core   +1 more source

Relationship between chlorophyll a pigment and algal geometric biovolume determination in a floodplain lake (Ciénaga Ayapel, Córdoba-Colombia)

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2012
The estimation of biomass of planktonic algae can be done by two methods, the quantification of geometric biovolume and chlorophyll a. This work which considers as environmental scenario the Ayapel-Cordoba flood-plain lake, introduces (presents) the two
Esnedy Hernández   +2 more
doaj   +1 more source

Caspian Sea is eutrophying: the alarming message of satellite data

open access: yesEnvironmental Research Letters, 2020
The competition over extracting the energy resources of the Caspian Sea together with the major anthropogenic changes in the coastal zones have resulted in increased pollution and environmental degradation of the sea.
Anahita Modabberi   +6 more
doaj   +1 more source

Indirect method for quantifying the content of photosynthetic pigments in genotypes of dwarf elephant grass - doi: 10.4025/actascianimsci.v35i1.15178

open access: yesActa Scientiarum: Animal Sciences, 2012
Equations that indirectly associate the rates obtained by chlorophyll meter SPAD-502 to chlorophyll and carotenoids rates of dwarf elephant grass genotype are provided. Leaves of the genotype of dwarf elephant grass were employed.
Saulo Alberto do Carmo Araújo   +5 more
doaj   +1 more source

Study some of Garden Cress (Lepidium sativum L.) Physiological Traits at Levels of Irrigation and Ascorbic Acid [PDF]

open access: yesIkufīziyuluzhī-i Giyāhān-i Zirā̒ī, 2017
Drought seriously reduces the quality and quantity of agronomic and horticultural plants. In such condition, using factors to reduce these effects on plants is indispensible. To evaluate the effect of water stress and different levels of ascorbic acid on
Zohre Akbari   +3 more
doaj  

Nitric oxide sensing by chlorophyll a [PDF]

open access: yesAnalytica Chimica Acta, 2017
Nitric oxide (NO) acts as a signalling molecule that has direct and indirect regulatory roles in various functional processes in biology, though in plant kingdom its role is relatively unexplored. One reason for this is the fact that sensing of NO is always challenging. There are very few probes that can classify the different NO species.
Abhishek Bhattacharya   +9 more
openaire   +2 more sources

Effects of water temperature on summer periphyton biomass in shallow lakes: a pan-European mesocosm experiment [PDF]

open access: yes, 2015
Periphyton communities play an important role in shallow lakes and are controlled by direct forces such as temperature, light, nutrients, and invertebrate grazing, but also indirectly by planktivorous fish predation.
Adrian, Rita   +9 more
core   +1 more source

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