ISSN:
1432-1793
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
Notizen:
Abstract Temporal responses of eyes from four decapod species taken from sublittoral (Pandalus montagui Leach), coastal [Nephrops norvegicus (L.)] and deep-sea [Paromola cuvieri (Risso) and Chaceon (=Geryon) affinis A. Milne Edwards and Bouvier] habitats were examined. The electroretinogram responses to a range of sinusoidal intensity modulations between 0.5 and 40 Hz were recorded. Recordings were made from individuals adapted successively to two background light intensities. The sublittoral and coastal species showed faster responses when adapted to the higher light level and they also responded best to intermediate frequencies. When adapted to the lower light level, all species responded most strongly to low-frequency stimuli. Physiological and ecological reasons for the differences in responses are suggested.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/s002270050682
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