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Directory entires that have specified Kristineberg Marine Research Station as one of the geographic regions for the project/activity and are included in the AMAP, ENVINET, SAON and SEARCH directories. Note that the list of regions is not hierarchical, and there is no relation between regions (e.g. a record tagged with Nunavut may not be tagged with Canada). To see the full list of regions, see the regions list. To browse the catalog based on the originating country (leady party), see the list of countries.
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To recognize some life cycle strategies linked to adult development and reproduction in the Northern krill, Meganyctiphanes norvegica, in the Gullmarsfjorden population. Sampling of krill and analyses of the distribution of sex, body-size, moult and reproductive development stages.
To examine the way in which light intensity and spectrum affects the swimming behaviour and activity of the pelagic euphausiid Meganyctiphanes norvegica. Our initial objective was to develop a method with this animal where clear behavioural responses could be related to various stimuli. By tethering the animals it was hoped that it would be possible to look at the responses of Meganyctiphanes norvegica to subtle changes in light intensity, of the range they might be expected to experience in their natural habitat. Concomitant with the main objective, animals were sampled over 24 hours to look for the presence of clock proteins and examine the movements of visual pigments. To relate any pigment migration to changes in light intensity that the animals might have experienced in situ, animals were also exposed to known quanta of light and then fixed.
The aim of our visit to Kristineberg was to study the stable carbon and nitrogen isotope fractionation of Meganyctiphanes norvegica in response to different food supply, and to evaluate the importance of physiological processes (assimilation and growth) in generating the new stable isotope pattern. This calibration will contribute to the evaluation of the stable isotope method as an approach to the study of food sources of animals in the field.