Indirect effects of Atrina zelandica on water column nitrogen and oxygen fluxes: The role of benthic macrofauna and microphytes

Potential impact of Chironomus plumosus larvae on hypolimnetic oxygen in the central basin of Lake Erie

“…Svensson and Leonardson (1996) reported an SOD 2.4 times greater than larval respiration alone. These results also are in agreement with studies of other species in both freshwater (Edwards et al, 2009) and marine systems (Wenzhöfer and Glud, 2004;Hewitt et al, 2006) that document increases in SOD as a result of benthic invertebrate activity, especially the freshwater burrowing mayfly Hexagenia spp. (Ephemeroptera), which is widespread in the western basin of Lake Erie (Schloesser et al, 2000).…”

Temporal variability of biodiversity patterns and trophic structure of estuarine macrobenthic assemblages along a gradient of metal contamination

“…On the other hand, the carnivores, mainly due to the polychaete N. hombergii, were particularly associated with the least contaminated area (49.3%), supporting the findings of Oyenekan (1986). To a lesser extent, but also highlighted in the constrained multivariate analysis, suspension-feeders were also less represented in higher contaminated sites, as reported by Hewitt et al (2009), with potential negative effects on the benthicepelagic interactions (Wildish and Kristmanson, 1997;Norkko et al, 2001;Newell, 2004;Ostroumov, 2005;Hewitt et al, 2006).…”

Multiple stressor effects on marine infauna: responses of estuarine taxa and functional traits to sedimentation, nutrient and metal loading

“…Large taxa living within the sediments provide a disproportionate contribution to ecosystem functioning through bioturbation, modification of boundary layers and the provision of food for other consumers 56 , 57 . Freely motile taxa also contribute to bioturbation, which in turn affects nutrients and oxygen fluxes 58 , while the loss of suspension feeders could have implications for benthic-pelagic coupling and water clarity 59 , 60 .…”