28 research outputs found
Lange termijn veranderingen op het Nederlands Continentaal Plat van de Noordzee: trends in evertebraten van 1931-1990
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Occurrence and role of a Quaternary base, trimethylamine oxide, in two cockle species, Cerastoderma edule and Cerastoderma lamarcki
No full textExpected biological effects of long-term changes in temperatures on marine ecosystems in coastal waters around the Netherlands
No full textThe Stimulation of the Ornithine Cycle of Xenopus Laevis Daudin By Ammonia in the Environment
No full textEffect of a tripeptide on the aggregational behaviour of the blue mussel Mytilus edulis
No full textAggregation of blue mussels (Mytilus edulis) is stimulated by environmental chemical stimuli. Experiments carried out in a basin with a one-way current showed that individual mussels were attracted to upstream mussel concentrations and moved actively in their direction. The involvement of a tripeptide in this migration was implicated by experiments demonstrating that individual mussels were effectively attracted and moved actively towards a source of glycine-glycine-arginine at concentrations of 0.56-3.78 x 10-10 M. A distinct seasonal difference in the extent of movement towards mussel concentrations was found. From the beginning of autumn, movement decreases linearly towards zero movement in winter
Numbers of larvae and primary plantigrades of the mussel Mytilus edulis in the western Dutch Wadden Sea
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Middelnederlandse legenden en exempelen : bijdrage tot de kennis van de prozalitteratuur en het volksgeloof der Middeleeuwen
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