2009
DOI: 10.1080/02705060.2009.9664276
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Zooplankton Predation and Consumption by Freshwater Crayfish, Cherax tenuimanus, at Different Sizes and Light Conditions

Abstract: We evaluated the influence of body size and light conditions on the consumption of live zooplankton (Daphnia spp.) by juvenile marron (Cherax tenuimanus). Zooplankton consumption was examined using three marron sizes (1 .O-2.9 g, 3.0-7.9 g, and 8.0-15.0 g) with ten replicates. The impact of light on feeding was tested under three conditions (clear water, green water, and dark conditions) using marron of 3.5 * 1.5 g, while food preference was tested by offering live zooplankton and inert pellets to 9.8 =k 2.0 g… Show more

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Cited by 9 publications
(7 citation statements)
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References 27 publications
(24 reference statements)
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“…When four age classes of yabby Cherax destructor were tested with live plankton versus pellet food, they spent 85% of their time feeding on live food and 15% feeding on the inert pellets (Meakin et al, 2008), demonstrating a preference for live food items. This was also observed in a study where juvenile hairy marron Cherax tenuimanus, when presented with both live Daphnia and pellet, showed a significant preference for feeding on the live food (Meakin et al, 2009). While observations on feeding preferences were not made as part of this study, a preference for live food items may be a result of their greater nutritional value.…”
Section: Hatchling Survivalsupporting
confidence: 74%
“…When four age classes of yabby Cherax destructor were tested with live plankton versus pellet food, they spent 85% of their time feeding on live food and 15% feeding on the inert pellets (Meakin et al, 2008), demonstrating a preference for live food items. This was also observed in a study where juvenile hairy marron Cherax tenuimanus, when presented with both live Daphnia and pellet, showed a significant preference for feeding on the live food (Meakin et al, 2009). While observations on feeding preferences were not made as part of this study, a preference for live food items may be a result of their greater nutritional value.…”
Section: Hatchling Survivalsupporting
confidence: 74%
“…Light wavelength has been documented to affect predation in a number of species (Becker et al., 2013; Jones et al 2016; South et al., 2017). Crayfish predominantly detect prey through a chemosensory pathway and, therefore, do not rely on visual foraging cues (Corotto and O’Brien 2002; Meakin et al., 2009) so foraging occurs in crepuscular or nocturnal periods as an anti‐predator strategy (Styrishave et al., 2007). Since freshwater crabs are also nocturnal (Cumberlidge, 2011) they are likely to interact and share common resources with crayfish during the night when both species emerge to forage.…”
Section: Discussionmentioning
confidence: 99%
“…Daphnia magna is an important prey species for larval and adult crayfish (Brown et al 1992;Meakin et al 2009;Kozák et al 2015). Our results substantiate this, but data on field effects of crayfish species on daphniid populations is limited.…”
Section: Discussionmentioning
confidence: 99%