Are similar worms different? A comparative tracer study on bioturbation in the three sibling species Marenzelleria arctia, M. viridis, and M. neglecta from the Baltic Sea

Renz, Judith; Förster, Stefan

doi:10.4319/lo.2013.58.6.2046

Cited by 43 publications

(40 citation statements)

References 51 publications

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“…We did not attempt to quantify a potential bioirrigation rate based on the size or behavior of the observed faunal species, though we note that our most abundant annelid families, spionidae (Quintana et al, 2011;Renz & Forster, 2013) and capitellidae (Nickell et al, 2003;Przeslawski et al, 2009), are known irrigators and many mollusks are known bioturbators (Kristensen et al, 2012). We did not attempt to quantify a potential bioirrigation rate based on the size or behavior of the observed faunal species, though we note that our most abundant annelid families, spionidae (Quintana et al, 2011;Renz & Forster, 2013) and capitellidae (Nickell et al, 2003;Przeslawski et al, 2009), are known irrigators and many mollusks are known bioturbators (Kristensen et al, 2012).…”

Section: Slice-specific Rates Of D 15 and Dnra 15mentioning

confidence: 99%

“…In general, faunal abundance was not found to be a good predictor of denitrification or DNRA rates, although the dependence on log (d sed ) is related to decreasing transport of NO 3 À to deeper sediment layers, which in turn is related to bioirrigation rates. We did not attempt to quantify a potential bioirrigation rate based on the size or behavior of the observed faunal species, though we note that our most abundant annelid families, spionidae (Quintana et al, 2011;Renz & Forster, 2013) and capitellidae (Nickell et al, 2003;Przeslawski et al, 2009), are known irrigators and many mollusks are known bioturbators (Kristensen et al, 2012). A full analysis of the species involved in bioirrigation and their relative effects on biogeochemical cycling is beyond the scope of this study.…”

Section: Slice-specific Rates Of D 15 and Dnra 15mentioning

confidence: 99%

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Biogeochemical Controls on the Relative Importance of Denitrification and Dissimilatory Nitrate Reduction to Ammonium in Estuaries

Kessler

Roberts

Bissett

et al. 2018

Global Biogeochemical Cycles

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The balance between estuarine denitrification and dissimilatory nitrate reduction to ammonium (DNRA) is critical for determining nitrogen loads received by oceans from inland waters. We aimed to determine the factors controlling the ratio between these processes and determining whether nitrogen was generally removed or recycled in estuaries. Rates of denitrification and DNRA with depth were measured in intact sediment cores in 11 estuaries along the coast of Victoria, Australia. The estuaries studied represent a range of biogeochemical conditions, land use, and catchment size. At a pore water profile scale, the ratio of denitrification to DNRA was well predicted by a multiple regression model with nitrate concentration in the overlying water, dissolved pore water iron, and ammonium as the predictor variables. Areal denitrification rates varied from 4 to 150 μmol · m−2 · hr−1, and DNRA rates varied from 2 to 30 μmol · m−2 · hr−1, with the ratio of denitrification to DNRA spanning a range from denitrification‐dominated (denitrification/DNRA = 8.4) to DNRA‐dominated (denitrification/DNRA = 0.3). DNRA dominated at sites with high iron pools and high organic carbon to nitrate ratios. We conclude that low nitrate and high Fe2+ availability generally enhances DNRA and drives an estuary toward being N recycling, rather than N removing.

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Section: Slice-specific Rates Of D 15 and Dnra 15mentioning

confidence: 99%

Section: Slice-specific Rates Of D 15 and Dnra 15mentioning

confidence: 99%

Biogeochemical Controls on the Relative Importance of Denitrification and Dissimilatory Nitrate Reduction to Ammonium in Estuaries

Kessler

Roberts

Bissett

et al. 2018

Global Biogeochemical Cycles

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“…Marenzelleria spp. is an invasive surface deposit feeder and an efficient bioirrigator that buries deeper into the sediment than other resident species (Renz and Forster ) and adds new functionality to the native communities (Hewitt et al. , Kauupi et al.…”

Section: Discussionmentioning

confidence: 99%

Template for using biological trait groupings when exploring large‐scale variation in seafloor multifunctionality

Villnäs

Hewitt

Snickars

et al. 2017

Ecological Applications

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Abstract. Understanding large-scale spatial variation in ecosystem properties and associated functionality is key for successful conservation of ecosystems. This study provides a template for how to estimate differences in ecosystem functionality over large spatial scales by using groupings of biological traits. We focus on trait groupings that describe three important benthic ecosystem properties, namely bioturbation, community stability, and juvenile dispersal. Recognizing that groups of traits interact and are constrained within an organism, we statistically define important functional trait subgroups that describe each ecosystem property. The sub-groups are scored according to their weighted ecological impact to gain an overall estimation of the cumulative expression of each ecosystem property at individual sites. Furthermore, by assigning each property a value relative to its observed maximum, and by summing up the individual property values, we offer an estimate of benthic ecosystem multifunctionality. Based on a spatially extensive benthic data set, we were able to identify coastal areas with high and low potential for the considered benthic ecosystem properties and the measure of ecosystem multifunctionality. Importantly, we show that a large part of the spatial variation in functional trait sub-groups and in benthic ecosystem multifunctionality was explained by environmental change. Our results indicate that through this simplification it is possible to estimate the functionality of the seafloor. Such information is vital in marine spatial planning efforts striving to balance the utilization with the preservation of natural resources.

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“…It has demonstrated effects on sediment bioturbation depth (Quintana et al. , Renz and Forster ), organic matter burial (Josefson et al. ), and nutrient recycling (Hietanen et al.…”

Section: Methodsmentioning

confidence: 99%

Species and functional trait turnover in response to broad‐scale change and an invasive species

et al. 2016

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While beta diversity has been implicated as a key factor in controlling resilience of communities to stressors, lack of long‐term data sets has limited the study of temporal dynamics of beta diversity. With a time series at two sites in excess of 40 yr, we investigated turnover of both species and functional traits in a system stressed by eutrophication and overfishing and undergoing climate change and invasion. The two sites, although located near to each other, differ in water depth (20 cf. 35 m), but both sites have displayed increased abundances of an invasive polychaete since 1990. We tested two hypotheses related to the effect of an invasive species; that taxa richness and turnover would decrease, and trait richness would increase post invasion and that trait turnover would increase between arrival and establishment of the invasive. Generally, we observed different dynamics at the two sites and responses not consistent with our hypotheses. We detected an increase in taxa richness at both sites and an increase in taxa turnover and number of traits at one site only. Trait turnover was higher prior to the invasion, although again only at one site. Disjunctive responses between species and trait turnover occurred, with the invader contributing in a nonrandom fashion to trait turnover. The lack of strong, consistent responses to the arrival and establishment of the invasive, and the decrease in trait turnover, suggests that effects of invasives are not only system‐ and species‐dependent, but also depend on community dynamics of the invaded site, in particular the assembly processes, and historical context.

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Are similar worms different? A comparative tracer study on bioturbation in the three sibling species Marenzelleria arctia, M. viridis, and M. neglecta from the Baltic Sea

Cited by 43 publications

References 51 publications

Biogeochemical Controls on the Relative Importance of Denitrification and Dissimilatory Nitrate Reduction to Ammonium in Estuaries

Biogeochemical Controls on the Relative Importance of Denitrification and Dissimilatory Nitrate Reduction to Ammonium in Estuaries

Template for using biological trait groupings when exploring large‐scale variation in seafloor multifunctionality

Species and functional trait turnover in response to broad‐scale change and an invasive species

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