2020
DOI: 10.3389/fmars.2020.00695
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Effect of Nutrient Enrichment and Turbidity on Interactions Between Microphytobenthos and a Key Bivalve: Implications for Higher Trophic Levels

Abstract: Light and Nutrient Effects on MPB productivity. This may indirectly change the interactions between MPB and key bivalves as suspended sediment concentrations and nutrient enrichment continue to increase globally. This has implications for various ecosystem functions that are mediated by these interactions, such as nutrient cycling as well as primary and secondary production.

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Cited by 14 publications
(2 citation statements)
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“…Enrichment of the sediment successfully increased sediment porewater concentrations of nitrogen by 40-and 800-fold in the medium and high treatments, respectively. These sediment NH 4 + concentrations are comparable to those in eutrophic estuaries globally [35], and are the same concentrations that have been used in multiple experiments investigating the role of enrichment on biogeochemical cycling, e.g., [32,38,54,55]. Whilst eutrophication causes a wide variety of changes in sediment biogeochemistry including changes in C quality and quantity and O 2 concentrations, and can be dependent on differences in hydrodynamic conditions, large increases in N are commonly observed in estuaries with diffuse source inputs.…”
Section: Discussionsupporting
confidence: 58%
“…Enrichment of the sediment successfully increased sediment porewater concentrations of nitrogen by 40-and 800-fold in the medium and high treatments, respectively. These sediment NH 4 + concentrations are comparable to those in eutrophic estuaries globally [35], and are the same concentrations that have been used in multiple experiments investigating the role of enrichment on biogeochemical cycling, e.g., [32,38,54,55]. Whilst eutrophication causes a wide variety of changes in sediment biogeochemistry including changes in C quality and quantity and O 2 concentrations, and can be dependent on differences in hydrodynamic conditions, large increases in N are commonly observed in estuaries with diffuse source inputs.…”
Section: Discussionsupporting
confidence: 58%
“…In this case, dominant effects may still generate ecological surprises, as we expected to see a dominance of nutrient input on microbial activity (Qualls 1984; Kearns et al 2016) and Chl a (Hao et al 2020; Hope et al 2020) but no effect was detected. First, in other studies, nutrient enrichment is associated with both positive and negative effects on microbial activity.…”
Section: Discussionmentioning
confidence: 85%