ISSN:
1573-5117
Keywords:
Diurnal variation
;
Astaxanthin Acanthodiaptomus
;
Feeding rhythm
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract In Lac Pavin Acanthodiaptomus denticornis was found to be intensely reddish-orange coloured by keto-carotenoids of the astaxanthin type. Such pigments are not normally found in phytoplankton algae, and apparently these carotenoids result from the metabolism of pigments of dietary origin. The carotenoid content of the zooplankton showed a distinct 2.5-fold diurnal variation, with a minimum at night time and a maximum in the early morning. The possible impact of a diurnal difference in zooplankton feeding activity is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00009826
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