Untersuchungen zum Nachweis spezifischer Perzeptionsmechanismen im Drucksinn sessiler Krebse (Balanus balanus L. undBalanus improvisus Darwin)

@article{Sommer2005UntersuchungenZN,
  title={Untersuchungen zum Nachweis spezifischer Perzeptionsmechanismen im Drucksinn sessiler Krebse (Balanus balanus L. undBalanus improvisus Darwin)},
  author={H. -H. Sommer},
  journal={Experientia},
  year={2005},
  volume={28},
  pages={1449-1450}
}
  • H. Sommer
  • Published 1 December 1972
  • Biology
  • Experientia
The mechanism of pressure sensitivity in marine invertebrates without gasfilled spaces is still obscure. Barmacles sum up supra- and subthreshold pressure stimuli with supra- and subthreshold shade stimuli. The subthreshold spatial summing up indicates that specific pressure receptors or receptor mechanisms exist. 
Kompensation extremer Umwelteinflüsse beiBalanus balanus als Anpassung an die sessile Lebensweise
  • H. Sommer
  • Environmental Science
    Helgoländer wissenschaftliche Meeresuntersuchungen
  • 2005
TLDR
Investigations showed that increase of stimulus duration at a temporal range of 1–5 min and 30–360 min causes an increased response intensity, whereas, at a range of 5–30 min, the response intensity decreases.
Perception of constant hydrostatic pressure. A physiological basis for the vertical stratification of marine habitats
  • H. Sommer
  • Environmental Science
    Experientia
  • 2005
TLDR
The results suggest the presence in Balanus of a previously unknown sensory system with a tonic response, which may also be present in freely moving animals, but be masked by their locomotor activity.

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    Helgoländer wissenschaftliche Meeresuntersuchungen
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The mechanism of pressure perception in animals without gasfilled spaces is still obscure. Larvae of numerous species of marine invertebrates respond to pressure changes; but the nature and direction
Responses of Mytilus edulis Larvæ to Increases in Hydrostatic Pressure
TLDR
Knight-Jones and Qasim1 have reported that a number of marine planktonic animals are sensitive to small changes in hydrostatic pressure, which tended to become more active and swim upwards when submitted to increased pressures.
Responses of Some Marine Plankton Animals to Changes in Hydrostatic Pressure
TLDR
It has generally been thought that aquatic animals, which lack gas-filled spaces in their bodies, would not perceive variations in hydrostatic pressure due to small changes in depth, but the discovery that decapod larvæ swim upwards, in response to pressure increases, suggested that tests for pressure sensitivity should be carried out on animals not known to possess gas organs.
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TLDR
Test the hypothesis that the behaviour in vertical migration of this and perhaps other plankton animals might be influenced by the differences in pressure at various depths by conducting experiments with copepod Calanus finmarchicus.
High pressure effects on marine invertebrates and fishes
A survey of literature and of new information from the author's laboratory is presented concerning the comparative pressure physiology of marine invertebrates and fishes. Short term experiments on
Untersuchungen über die Frage der Wahrnehmung von Druckunterschieden des Mediums
TLDR
Das Labyrinth muß daher beim Gründling als Organ der Druckperzeption angesehen werden, der Bevorzugung des Bodenaufenthalts als Einstellungsreaktion gegenüber dem Wasserdruck anzusehen sein.
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Alkalinity appears at the surface of living and non-living Crustacea in places where electrode processes are demonstrable at high potentials and comparable effects are not produced by diffusion in soft tissues or in gelatin and other substances in the absence of organic semi-conductors.
Observations on the Effects of Changes of Hydrostatic Pressure on the Behaviour of Some Marine Animals
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  • Environmental Science, Geology
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  • 1964
An apparatus and experimental method for the investigation of the effects of changes of pressure on the behaviour of marine animals is described. In 43 of a total of 53 species examined in this
THE DERMAL LIGHT SENSE
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  • Biology
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1. Dermal light reactions are responses to illumination of the body surface of animals due to stimulation of diffusely distributed photoreceptors.
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