Intraspecific food competition in the deposit-feeding benthic amphipod Monoporeia affinis— a laboratory study

  title={Intraspecific food competition in the deposit-feeding benthic amphipod Monoporeia affinis— a laboratory study},
  author={Ragnar Elmgren and Gunilla Ejdung and Sven Ankar},
  journal={Marine Ecology Progress Series},
Field studies in the Baltic Sea indicate that the growth rate of the deposit-feeding ben- thic amphipod Monoporeia affinis (Lindstrom), which is found in densities of up to ≅25 000 ind. m -2 , is negatively density-dependent. We tested the density-dependence of growth in M. affinis under controlled laboratory conditions, using sediment of high organic content (loss on ignition 10.9%) and a wide density range of 2 amphipod year-classes (juveniles, 1150 to 38 000 ind. m -2 , 1 yr old sub- adults… 

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