Further nutritional studies on the marine rotifer Encentrum linnhei

  title={Further nutritional studies on the marine rotifer Encentrum linnhei},
  author={J. Michael Scott},
  • J. M. Scott
  • Published 1 April 1987
  • Environmental Science
  • Hydrobiologia
Evidence is given that the colourless flagellate Oxyrrhis marina is a natural source of tryptophan in the diet of the rotifer Encentrum linnhei, which inhabits coastal rockpools in western Scotland. The rotifer feeds on this flagellate in addition to the photosynthetic alga Brachiomonas submarina. This study also shows that tryptophan excreted by one alga can be taken up by another and made available to Encentrum, a process which allows the rotifer to grow on combinations of algae which… 

The role of Oxyrrhis marina as a model prey: current work and future directions

Protozoa hold a key trophic position in pelagic food webs. Primary and bacterial production is consumed by them; their role as consumers is well established. Not as fully explored is their fate, by

Biology of the Marine Heterotrophic Dinoflagellate Oxyrrhis marina: Current Status and Future Directions

The abundance of this species in the natural waters and its controlling factors, genome organization and gene expression regulation that underlie the unusual cytological and ecological characteristics are among the areas that urgently need study.

Rotifers as predators on components of the microbial web (bacteria, heterotrophic flagellates, ciliates) — a review

  • H. Arndt
  • Environmental Science
  • 2004
Results of feeding experiments and the analysis of theFood size spectrum of rotifers suggest that larger bacteria, heterotrophic flagellates and small ciliates should be a common part of the food of most rotifer species.



Vitamin B12 and Marine Ecology. IV. The Kinetics of Uptake, Growth and Inhibition in Monochrysis Lutheri

  • M. Droop
  • Biology
    Journal of the Marine Biological Association of the United Kingdom
  • 1968
Specific growth rate in the chemostats was found not to depend directly on medium substrate concentration but on the concentration within the cells (cell quota), obeying a hyperbolic equation of the form 57.

Rhythmic release of dissolved free amino acids from partly synchronized Thalassiosira rotula under nearly natural conditions

  • K. HammerU. H. Brockmann
  • Environmental Science
  • 1983
In outdoor tanks enclosed monocultures of Thalassiosira rotula, partly synchronized cell divisions during exponential growth and changes in division activity showed a characteristic frequency, which pointed to strong fluxes of organic bound nitrogen in marine micro-heterotrophs.

Vitamin B12 and marine ecology

  • M. Droop
  • Chemistry, Biology
    Helgoländer wissenschaftliche Meeresuntersuchungen
  • 2005
KurzfassungDer Einsatz von Turbidostaten und Chemostaten zur Dauerkultur von Algen kann auch einer Analyse der Kinetik von Prozessen dienen, die durch die Konzentration bestimmter Nähr- und

The Component Combined Amino Acids of Some Marine Phytoplankton Species

Gas-liquid and thin-layer chromatography have been used for the determination of 25 amino acids in the hydrolysates of 25 species of marine phytoplankton which had been grown in Erd-Schreiber medium and no differences were found which could be related to the taxonomy of the organisms.

Algal physiology and biochemistry

Rotifer nutrition using supplemented monoxenic cultures

The evolution of rotifer feeding/ nutritional studies is discussed together with their relevance to ecological observations. Aseptic conditions and initially synxenic cultures are regarded as a basis

The amino acid composition of certain unicellular algae , and of the faecal pellets produced by Calanus finmarchicus when feeding on them

  • 1966

Extracellular products

  • J. M.,
  • 1974