Structure and composition of the consolidated mud tube of Maldane sarsi (Polychaeta: Maldanidae)

Dufour, Suzanne C.; White, Caroline; Desrosiers, Gaston; Juniper, S. Kim

doi:10.1016/j.ecss.2007.12.013

Cited by 26 publications

(24 citation statements)

References 16 publications

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“…Nicol et al ., ). Higher bacterial abundance has been recorded previously in samples taken from the burrow walls themselves (Papaspyrou et al ., ; Dufour et al ., ; Laverock et al ., ), but it is still unclear whether prokaryotic abundance is affected in the sediment as a whole. Whilst a number of studies have reported higher abundance of AOA in both marine and terrestrial environments, in this case bacterial amoA genes outnumber AOA amoA genes, with AOB : AOA ratios ranging from ~ 5 : 1 at day 0 to ~ 9 : 1 in the presence of C. volutator .…”

Section: Discussionmentioning

confidence: 98%

Differential effects of microorganism-invertebrate interactions on benthic nitrogen cycling

Gilbertson

Solan

Prosser

2012

FEMS Microbiol Ecol

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Infaunal invertebrate activity can fundamentally alter physicochemical conditions in sediments and influence nutrient cycling. However, despite clear links between invertebrate activity and microbially mediated processes such as nitrification, the mechanisms by which bioturbating macrofauna affect microbial communities have received little attention. This study provides strong evidence for differential stimulation of microbial nitrogen transformations by three functionally contrasting species of macrofauna (Hediste diversicolor, Corophium volutator, Hydrobia ulvae). Despite increased nitrification, abundance of ammonia-oxidising bacteria (AOB) and ammonia-oxidising archaea (AOA) at the sediment-water interface did not significantly change in the presence of macrofauna. However, species-specific differences in macrofaunal activity did influence ammonia oxidiser community structure, increasing AOB abundance relative to AOA in the presence of C. volutator or H. ulvae, but with no change in H. diversicolor and no-macrofauna treatments. Denaturing gradient gel electrophoresis profiles were similar between macrofaunal treatments, although one AOB band increased in relative intensity in the presence of C. volutator, decreased in the H. diversicolor treatment and was unchanged in the H. ulvae treatment. These data suggest that links between bioturbating macrofauna and nutrient cycling are not expressed through changes in the abundance of ammonia oxidisers in surface sediments, but are associated with changes in the AOA : AOB ratio depending on the invertebrate species.

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Section: Discussionmentioning

confidence: 98%

Differential effects of microorganism-invertebrate interactions on benthic nitrogen cycling

Gilbertson

Solan

Prosser

2012

FEMS Microbiol Ecol

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“…Community composition on the CBS broadly grades ocean-ward (Conlan et al 2008 , unpublished data;Wacasey 1975 ). This species and Based on data interpretation rather than a strict Chao2 calculation due to lack of suffi cient data for some Arctic shelves other maldanid polychaetes provide an important benthic ecosystem service by regenerating nutrients at the surface, oxygenating deeper layers and mixing the sediment (Holte 1998 ;Levin et al 1997 ;Dufour et al 2007 ). Offshore, community structure and production are infl uenced by shelf topography which controls the degree of coupling with the pelagic environment.…”

Section: General Biogeography and Biodiversitymentioning

confidence: 99%

The Pacific Arctic Region

Grebmeier¹,

Maslowski²

2014

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“…It was demonstrated for some other polychaetes that their ability for selection of particles used for tube building can be quite high, and that they can select the particles smaller or larger than those that dominate in surrounding sediments (Dales 1957;Dufour et al 2008; Noffke al. 2009).…”

Section: Resultsmentioning

confidence: 99%

Eulalia picta Kinberg, 1866 – tube builder or specialized predator?

Pabis¹,

Sobczyk²

2017

Polish Polar Research

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Twenty six specimens of the polychaete Eulalia picta were found in finegrained sand tubes. Material was collected in the Antarctic fjord, Admiralty Bay at the depth of about 100 m. The comparison of tube sediment with the sediment composition at the collection site demonstrated that tubes were created with a high degree of particle selection. Our findings might suggest presence of the tube-building behavior in E. picta or show that this species is a highly specialized predator crawling into the tubes of other sessile polychaetes and uses their tubes as protective cases.

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Structure and composition of the consolidated mud tube of Maldane sarsi (Polychaeta: Maldanidae)

Cited by 26 publications

References 16 publications

Differential effects of microorganism-invertebrate interactions on benthic nitrogen cycling

Differential effects of microorganism-invertebrate interactions on benthic nitrogen cycling

The Pacific Arctic Region

Eulalia picta Kinberg, 1866 – tube builder or specialized predator?

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