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- W2078231867 abstract "We investigated trophic transfer efficiency in the pelagic food chain of deep, oligotrophic Lake Stechlin (Germany) by analyses of the primary, secondary, and fish production. Primary production between April and November 2000 was estimated at 78 g C m−2, pelagic secondary production at 14 g C m−2, and production of the main planktivorous fish species [European cisco, Coregonus albula (L.)] at 0.77 g C m−2. Thus, trophic transfer efficiency between primary and pelagic secondary production was around 18%, whereas between pelagic and fish production around 6%. The high efficiency at the first step of the chain is discussed to be due to the high food quality in oligotrophic lakes due to the dominance of Bacillariophyceae and Chlorophyceae rich in essential fatty acids. In turn, the relatively low trophic transfer efficiency between the secondary and the fish production is mainly explained by the avoidance of calanoid copepods as food source by the ciscoes. Concerning the trophic transfer efficiency, results from this study support the general assumption of a 10% transfer between neighbouring trophic levels within ecosystems." @default.
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- W2078231867 date "2004-10-01" @default.
- W2078231867 modified "2023-09-26" @default.
- W2078231867 title "Pelagic trophic transfer efficiency in an oligotrophic, dimictic deep lake (Lake Stechlin, Germany) and its relation to fisheries yield" @default.
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- W2078231867 doi "https://doi.org/10.1016/s0075-9511(04)80050-1" @default.
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