Compact low-cost detector for in vivo assessment of microphytobenthos using laser induced fluorescence

  title={Compact low-cost detector for in vivo assessment of microphytobenthos using laser induced fluorescence},
  author={Andrei B. Utkin and S{\'o}nia Catarina Reis Vieira and Jos{\'e} R. Marques da Silva and Alexander V. Lavrov and E. H. Leite and Paulo Cartaxana},
  journal={Optics and Spectroscopy},
The development of a compact low-cost detector for non-destructive assessment of microphytobenthos using laser induced fluorescence was described. The detector was built from a specially modified commercial miniature fiber optic spectrometer (Ocean Optics USB4000). Its usefulness is experimentally verified by the study of diatom-dominated biofilms inhabiting the upper layers of intertidal sediments of the Tagus Estuary, Portugal. It is demonstrated that, operating with a laser emitter producing… 

Application of Laser-Induced Fluorescence in Functional Studies of Photosynthetic Biofilms

Biofilms are a ubiquitous form of life for microorganisms. Photosynthetic biofilms such as microphytobenthos (MPB) and biological soil crusts (BSC) play a relevant ecological role in aquatic and

Laser induced fluorescence technique for environmental applications

We discuss the development of laser induced fluorescence sensors and their application in the evaluation of water pollution and physiological status of higher plants and algae. The sensors were built

Travelling Expenses: The Energy Cost of Diel Vertical Migrations of Epipelic Microphytobenthos

The physiology of the diel movements of epipelic microphytobenthic diatoms is not fully understood. As well, the evolutionary pressures that led to migratory behavior and the ecological role of

Effects of Glyphosate-Based Herbicide on Primary Production and Physiological Fitness of the Macroalgae Ulva lactuca

The use of glyphosate-based herbicides (GBHs) worldwide has increased exponentially over the last two decades increasing the environmental risk to marine and coastal habitats. The present study

Monitoring Photosynthesis by In Vivo Chlorophyll Fluorescence: Application to High-Throughput Plant Phenotyping

In spite of the decrease in the rate of population growth, world population is expected to rise from the current figure (slightly above to 7.2 billion) to reach 9.6 billion in 2050. There is

Fluoxetine induces photochemistry-derived oxidative stress on Ulva lactuca

Emerging pollutants impose a high degree of stress on marine ecosystems, compromising valuable resources, the planet and human health. Pharmaceutical residues often reach marine ecosystems, and their



Effects of intertidal ­microphytobenthos migration on biomass determination via laser-induced ­fluorescence

Laser-induced fluorescence (LIF) spectra of intertidal microphytobenthos (MPB) communities were obtained in the laboratory with a 532 nm pulsed Nd:YAG laser. The laser-induced chlorophyll (chl)


In vivo chlorophyll a fluorescence can be used to trace nondestructively the migratory behavior of benthic microalgae, in spite of the potential concurrent effects of factors other than the Chl a concentration on the fluorescence intensity.

Study of organic aerosols of phytogenic origin with fluorescent lidar

The results of complex studies on the use of laser‐induced fluorescence (LIF) for remote monitoring of the state of vegetation cover are discussed. We outline the specific features of the new

Inhibiting diatom motility: a new tool for the study of the photophysiology of intertidal microphytobenthic biofilms

This work introduces a methodology to obtain undisturbed nonmigratory biofilms, based on the diatom motility inhibitor latrunculin A (Lat A), which prevented light‐induced vertical migration while not affecting the biofilm photosynthetic activity or disrupting the photic zone microenvironment.

Application of KOMPSAT-2 to the detection of microphytobenthos in tidal flats

  • J. WonYun-Kyung LeeJaewon Choi
  • Environmental Science, Mathematics
    Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05.
  • 2005
A high resolution multi-spectral sensor in KOMPSAT-2 will provide useful data for long-term monitoring of microphytobenthos in tidal flats.

Microphytobenthos: The ecological role of the “secret garden” of unvegetated, shallow-water marine habitats. I. Distribution, abundance and primary production

On both the basis of biomass and biogeochemical reactivity, benthic microalgae play significant roles in system productivity and trophic dynamics, as well as such habitat characteristics as sediment stability.