Functional response to Daphnia carinata King when feeding on the filamentous diatom Melosira granulata.

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Title: Functional response to Daphnia carinata King when feeding on the filamentous diatom Melosira granulata.
Creator: King, C. R.
Creator: Shiel, R. J.
Creator: Murray-Darling Freshwater Research Centre
Subject: 270000 Biological Sciences
Subject: blue-green-algae
Subject: calanoid copepods
Subject: limb morphology
Subject: flos-aquae
Subject: rates
Subject: cladocerans
Subject: assimilation
Subject: zooplankton
Subject: ingestion
Subject: behavior
Date: 1993.
Publisher: Melbourne : CSIRO,
Description: MDFRC item.
Description: The functional response of D. carinata feeding on M. granulata was determined from laboratory trials conducted at 20-22ºC, using a range of food concentrations (F) from 0.14 to 33.8µg (dry weight) mL-1. The functional response could be described by an lvlev model: I (ingestion rate, ng µg-1 h-1) = 200 - 205 × exp (- 0.036 × F). The ingestion rate at the highest food concentration (33.8 µg mL-1) was 140 ng µg-1 h-1, and there was no evidence to suggest that M. granulata either interfered with feeding at high densities or was a difficult food item for D. carinata to handle.

Format: 8 p. (p. 761-768)
Language: en
Type: journal article
Source: Australian Journal of marine and freshwater research, 44(5): 761-768