<i>Diopatra cuprea</i>worm burrow parchment: a cautionary tale of infaunal surface reactivity

Konhauser, Kurt O.; Hao, Weiduo; Li, Yuhao; Gunten, Konstantin von; Bishop, Brendan; Alessi, Daniel S.; Tarhan, Lidya G.; O’Connell, Brennan; Robbins, Leslie J.; Planavsky, Noah J.; Gingras, Murray K.

doi:10.1111/let.12335

Cited by 9 publications

(11 citation statements)

References 35 publications

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“…The tube structure is hypothesized to bring oxygen, other dissolved gasses, and water into the surrounding sediment that may be hypoxic/anoxic (Matsui et al, 2004). Furthermore, analysis of the undecorated portion of the D. cuprea tube below the sediment surface by Konhauser et al (2020) suggests that this area of the tube serves primarily as a physical barrier (potentially from predation) due to the low levels of trace metal reactivity, as compared to other burrowing worms (i.e., Terebellid crispus by Lalonde ( 2011)). Decorator worms are known to incorporate shells, algae, and detrital plant material from the intertidal sediment surface (Berke et al, 2006).…”

Section: Potential Biogeochemical Processes In Tubesmentioning

confidence: 99%

“…Burrowing marine animals, including intertidal polychaetes, are well-recognized contributors to the biogeochemistry of the benthic environment through excavation (mixing old and new sediments), grazing and eating, and excretion (Konhauser et al, 2020). More recently, studies have shown that intertidal polychaetes species host microbial symbionts capable of transformation, degradation, and detoxification.…”

Section: Introductionmentioning

confidence: 99%

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Compositional and Functional Microbiome Variation Between Tubes of an Intertidal Polychaete and Surrounding Marine Sediment

et al. 2021

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The decorator worm Diopatra cuprea, a tube-forming marine polychaete common to intertidal and shallow subtidal waters, modifies habitats it occupies through microreef construction and algal gardening. While several studies have demonstrated that decorator worm tubes are hotspots of biogeochemical activity (i.e., nitrogen and sulfur cycling), it is still largely unclear whether the tube microbiome differs compositionally from the surrounding sediment and what distinct functional processes tube microbiomes may have. To address these unknowns, this study analyzed the bacterial communities of D. cuprea tubes and surrounding sediments using high-throughput 16S rRNA gene amplicon sequencing. Tubes and sediments were sampled at three sites along an anthropogenic stress gradient within the Newport River Estuary to also assess geographic variation of tube microbiomes and the possible influence of human disturbance. We found a clear distinction in the microbial community composition and diversity between tubes and surrounding sediment. Tube microbiomes were significantly enriched for the phyla Bacteriodetes, Actinobacteria, Verrucomicrobia, Deferribacteres, Latescibacteria, and Lentisphaerae. Chloroplast sequences of macroalgae and grass species were consistently abundant in tubes and nearly absent in surrounding sediment. Functional annotation of prokaryotic taxa (FAPROTAX)-based functional predictions suggested that tube microbiomes have higher potentials for aerobic chemoheterotrophy, sulfur compound respiration, nitrate reduction, methylotrophy, and hydrocarbon degradation than surrounding sediments. Tube microbiomes vary across sites, though dissimilarity is comparatively low compared to tube-to-sediment differences. Contrary to our hypothesis, the tubes at the most highly impacted site had the highest microbial diversity [i.e., amplicon sequence variant (ASV) richness and Shannon’s diversity], yet tubes from the medium impacted site actually had the lowest microbial diversity. Our findings show that D. cuprea tubes support a microbiome that is significantly distinct in composition and function from the surrounding sediment. Diopatra cuprea tubes appear to create unique microhabitats that facilitate numerous microbially-mediated biogeochemical processes in the marine benthic environment.

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Section: Potential Biogeochemical Processes In Tubesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compositional and Functional Microbiome Variation Between Tubes of an Intertidal Polychaete and Surrounding Marine Sediment

et al. 2021

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“…Raccoon Key is located between the Ogeechee and Little Ogeechee River tidal channels and is classified as a sand‐dominated intertidal platform (Konhauser et al ., 2020). Steamboat Pass is located ca 4 km inland (north‐east) from Raccoon Key, found at the tidal channel margin and identified as a laterally accreting bar‐top (Konhauser et al ., 2020) (Fig. 1).…”

Section: Geological Settingmentioning

confidence: 99%

The influence of invertebrate faecal material on compositional heterogeneity, diagenesis and trace metal distribution in the Ogeechee River estuary, Georgia, USA

et al. 2020

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Bioturbating organisms contribute significantly to elemental cycling in sediments through burrowing, grazing, organic matter and altering porewater chemical conditions. In the process, organisms are known to produce copious amounts of faecal material at high rates, sometimes in excess of 1 000 000 kg day−1 in a 1 km2 area. Material from three organisms (Arenicola marina, Callichirus major and Diopatra cuprea) was collected from two locations, Raccoon Key and Steamboat Pass, in the Ogeechee River estuary, Georgia, USA, to explore how faecal production affects organic carbon cycling and clay mineralogies. The individual organisms’ feeding strategies played a strong role in the extent to which they concentrate organic matter and lead to the formation of clay minerals. The faecal material of filter feeding Diopatra cuprea and selective deposit feeding Callichirus major contains up 45.8% and 47.3% kaolinite, respectively, while kaolinite is below detection limits in the surrounding matrix. By contrast, the non‐selective deposit‐feeder Arenicola marina does not appear to form or concentrate clay minerals. Callichirus major increases organic carbon contents at Raccoon Key by 68‐fold and Diopatra cuprea increases total organic carbon (w/w%) by 119‐fold and 32‐fold at Raccoon Key and Steamboat Pass, respectively. Arenicola marina, in contrast, does not noticeably concentrate organic matter in its faecal material, most likely as a consequence of non‐selective deposit‐feeding. Potentiometric titration data was used to explore surface reactivity and metal sorption. Diopatra cuprea and Callichirus major faecal material has strong metal binding affinities relative to the surrounding matrix, thereby increasing the potential for trace metals to be sequestered into the sedimentary record. The widespread occurrence of invertebrate faecal material enriched in clay minerals and organic matter likely has a significant influence on organic matter, grain size and trace metal distribution in estuarine sediments.

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“…Diopatra cuprea builds capped, cylindrical spiral tubes made from debris, such as shells, sediment, pebbles, and plant matter (Konhauser et al. 2020 ). The constructed tube provides protection and facilitates food gathering for the worm.…”

mentioning

confidence: 99%

“…Geographically, D. cuprea can commonly be found along the western Atlantic coast, in the Caribbean Sea, and in the Gulf of Mexico (Konhauser et al. 2020 ). This taxon is considered a species complex with current taxonomy hindering species diversity; a recent study using morphological and molecular data resulted in the description of four new species previously identified as D. cupre a for the Brazilian coast (Seixas et al.…”

mentioning

confidence: 99%

The complete mitochondrial genome of the plumed worm Diopatra cuprea (Annelida: Onuphidae)

Hamilton

Preston

Wheeler

et al. 2021

Mitochondrial DNA Part B

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In this study, we describe the complete mitochondrial genome of Diopatra cuprea (Bosc, 1802). The mitogenome was found to contain 14,990 base pairs (67.53% A + T content), with a total of 37 genes (13 protein coding, 22 transfer RNAs, and 2 ribosomal RNAs). This study also examined mitogenome phylogenetics relationships of closely related species and recovered that D. cuprea is closely related to eunicids. This work has added to the genetic resources for furthering evolutionary studies of Annelida.

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Diopatra cupreaworm burrow parchment: a cautionary tale of infaunal surface reactivity

Cited by 9 publications

References 35 publications

Compositional and Functional Microbiome Variation Between Tubes of an Intertidal Polychaete and Surrounding Marine Sediment

Compositional and Functional Microbiome Variation Between Tubes of an Intertidal Polychaete and Surrounding Marine Sediment

The influence of invertebrate faecal material on compositional heterogeneity, diagenesis and trace metal distribution in the Ogeechee River estuary, Georgia, USA

The complete mitochondrial genome of the plumed worm Diopatra cuprea (Annelida: Onuphidae)

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