ISSN:
1573-5117
Keywords:
N and P release rates
;
Daphnia
;
Scenedesmus
;
species-specific effects
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Bioavailable N and P release rates by juveniles and adults of three Daphnia taxa (D. hyalina, D. galeata and its interspecific hybrids D. hyalina × galeata) were measured to assess the effect of weight and interspecific differences on these rates in Daphnia. Immobilized Scenedesmus obliquus cells were used to estimate the release rates. The specific release rate of N varied between 5.19–5.71 μg N mg C-1 h-1 for juveniles and 3.00–3.42 μg N mg C-1 h-1 for adults. P excretion rate ranged between 1.93–2.37 μg P mg C-1 h-1 for juveniles and 1.00–1.24 μg P mg C-1 h-1 for adults. Our results show that the taxonomic affiliation of Daphnia individuals did not affect their N and P release rates.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1003581110687
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