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Relationship between epipelon, epiphyton and phytoplankton in two limnological phases in a shallow tropical reservoir with high Nymphaea coverage
(2020-02-01)
Macrophytes and phytoplankton are recognized as having roles in determining alternative stable states in shallow lakes and reservoirs, while the role of periphyton has been poorly investigated. Temporal and spatial variation ...
Water and nutrient supply for desert food webs: from autotrophs to top consumers within the framework of ecological stoichiómetry.
(2007)
Energy and material flow are essential to ecosystem functioning. Transfer of energy and
nutrients within ecosystems is best described in terms of food web interactions among taxa
in ecological comrnunities. Energy and ...
Deep Chlorophyll Maximum in Western Equatorial Atlantic - How does it Interact with Islands Slopes and Seamounts?
(2013)
This paper investigates the dynamics of the deep chlorophyll maximum layer (DCML) along the Fernando de Noronha Ridge in the oligotrophic western equatorial Atlantic off northeast Brazil. Mixing processes between water ...
Dinâmicas do picoplâncton na Costa Oeste do Oceano Atlântico Equatorial
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ECOLOGIA, 2018-05-04)
Most of the ocean’s biomass is microbial and picoplankton microorganisms, which
consists of small cells (<3 µm), are central players of global nutrient cycle and C
production. Heterotrophic bacteria, cyanobacteria (e.g. ...
Synoptic events force biological productivity in Patagonian Fjord Ecosystems
(2016)
The annual cycle of primary productivity of the Patagonian fjords has, to date, been
described as a two phase system consisting of a short non productive winter phase
(during June and July) and a productive phase extending ...
Kinetic model of photoautotrophic growth of Chlorella sp microalga, isolated from the Setúbal lagoon.
(Wiley Blackwell Publishing, Inc, 2015-06)
In this work, a kinetic expression relating light availability in the culture medium with the rate of microalgal growth is obtained. This expression, which is valid for low illumination conditions, was derived from the ...
Chlorophyll fluorescence as a marker for herbicide mechanisms of action
(Academic Press Inc. Elsevier B.V., 2012-03-01)
Photosynthesis is the single most important source of 02 and organic chemical energy necessary to support all non-autotrophic life forms. Plants compartmentalize this elaborate biochemical process within chloroplasts in ...