The influence of bioturbation on physical, chemical and biological parameters in aquatic environments: A review

Krantzberg, Gail

doi:10.1016/0143-1471(85)90009-1

Cited by 172 publications

(118 citation statements)

References 56 publications

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“…In addition, the contact of ingested particles with digestive tract solutions is likely to have contributed to U dissolution. Already observed in marine environments accumulating authigenic U (Zheng et al, 2002), these results confirm previous reports for other metals in freshwater sediments (Krantzberg, 1985;Matisoff, 1995;Ciutat and Boudou, 2003;Ciutat et al, 2007). The flux modelling corresponding to the UT-12 profile indicated that this process was all the more efficient because bioturbation also limited the diffusive flux from water to sediment due to the presence of an oxidation layer in upper sediment.…”

Section: Bioturbation Effects In U-spiked Sedimentsupporting

confidence: 78%

Remobilisation of uranium from contaminated freshwater sediments by bioturbation

Lagauzère

Motelica-Heino²,

Viollier

et al. 2014

Biogeosciences

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Abstract. Benthic macro-invertebrate bioturbation can influence the remobilisation of uranium (U) initially associated with freshwater sediments, resulting in a high release of this pollutant through the overlying water column. Given the potential negative effects on aquatic biocenosis and the global ecological risk, it appears crucial to improve our current knowledge concerning the biogeochemical behaviour of U in sediments. The present study aimed to assess the biogeochemical modifications induced by Tubifex tubifex (Annelida, Clitellata, Tubificidae) bioturbation within the sediment in order to explain such a release of U. To reach this goal, U distribution between solid and solute phases of a reconstructed benthic system (i.e. in mesocosms) inhabited or not by T. tubifex worms was assessed in a 12-day laboratory experiment. Thanks notably to fine-resolution (mm-scale) measurements (e.g. "diffusive equilibrium in thin-films" DET gel probes for porewater, bioaccumulation in worms) of U and main chemical species (iron, sulfate, nitrate and nitrite), this work (i) confirmed that the removal of bottom sediment particles to the surface through the digestive tract of worms greatly favoured oxidative loss of U in the water column, and (ii) demonstrated that both U contamination and bioturbation of T. tubifex substantially influenced major microbial-driven biogeochemical reactions in sediments (e.g. stimulation of denitrification, sulfate reduction and iron dissolutive reduction). This study provides the first demonstration of biogeochemical modifications induced by bioturbation in freshwater U-contaminated sediments.

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Section: Bioturbation Effects In U-spiked Sedimentsupporting

confidence: 78%

Remobilisation of uranium from contaminated freshwater sediments by bioturbation

Lagauzère

Motelica-Heino²,

Viollier

et al. 2014

Biogeosciences

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“…After 45 days, in the surface contaminated layer, nC17/pristane and nC18/phytane ratios remained of the same order as those of the "hydrocarbon cake" (figure 3), respectively of 5 and 3.5 (control sediment), and 5.1 and 2.7 (inhabited sediment). On the other hand, after 45 days, the nC17/pristane and nC18/phytane ratios calculated from SF of buried hydrocarbons decreased respectively to 2.3 and 1.1 (ratios are presented in figure 4) indicating microbial degradation of normal alkanes in polychaete burrows where microbial activities are enhanced 27 .…”

Section: Resultsmentioning

confidence: 99%

The in vitro influence of the burrowing polychaete Nereis diversicolor on the fate of petroleum hydrocarbons in marine sediments

Gilbert¹,

Rivet²,

Bertrand³

1994

Chemosphere

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International audienceThe in vitro fate of the saturated hydrocarbon fraction (SF) of Arabian Light crude oil has been studied in PVC cores filled with a coastal marine sediment defaunated by sieving. Experiments were conducted in absence or presence of polychaetes Nereis diversicolor. The luminophore tracer technique was used to quantify the mixing of sediment by worms. Presence of crude oil reduced the building of burrows by polychaetes. This work demonstrates the ability of infaunal organisms to stimulate both downard and outward transfers of hydrocarbons from sediment reservoirs. In non-bioturbated sediment hydrocarbons were confined to the sediment surface. Introduction of polychaetes in sediment (1) induced the burying of SF in sediment (2.5 % and 13.5 % of the initial surface input after 15 and 45 days, respectively); (2) enhanced the exportation of SF in the overlying water (plus 59 % and 23.5 % compared to defaunated control sediment after 15 and 45 days, respectively). Buried hydrocarbons were submitted to biodegradation, from 2 cm to 10 cm depth in polychaete burrows, after 45 days

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“…Another factor shown to have a substantial impact on egg bank structure and dynamics is bioturbation (KRANTZBERG, 1985;MARCUS and SCHMIDT GEGENBACH, 1986;MORITZ, 1987;CARVALHO and WOLF, 1989;KEARNS et al, 1996). Vertical transport of sediment and eggs may, in fact, play an important role in recruitment to the water column of resting eggs buried in sediments, in which they can be found as deep as 30 cm (HAIRSTON et al, 1995).…”

Section: Cyst Distribution and Abundancementioning

confidence: 99%

Structure and Functioning of the “Egg Bank” of a Fairy Shrimp in a Temporary Pool: Chirocephalus ruffoi from Pollino National Park (Southern Italy) as a Case Study

Mura

2004

International Review of Hydrobiology

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To investigate their distribution and total numbers, resting eggs of the anostracan Chirocephalus ruffoi were collected from the bed of a temporary pool in southern Italy. Samples were taken at 0.5 m intervals along six transects oriented at 30°from each other, by means of a cylindrical core sampler. The horizontal distribution of intact resting eggs was extremely patchy, with cyst number per core ranging from 191 to 1,400 (CV = 32.7%), corresponding to a mean of between 0.8 and 4.3 cysts cm -3 . Differences observed were related to core position and transect orientation, total cyst numbers being markedly higher in the leeward area of the pool compared to the windward area. Marked variation was also evident in vertical distribution, a significant, though weak correlation was recorded between egg density and sediment depth. Cyst-bank size (± 95% confidence limits) of the pool bed, estimated from the mean cyst number cm -3 obtained for the 6 transects, ranged between 1.0 × 10 8 and 1.3 × 10 8 cysts.Hatching in the laboratory was very erratic. Despite significant differences in hatching, the observed variation was unrelated to most of the variables considered (position within sections, cores and transects, pre-incubation treatment) and was explained only by initial sediment conditions (moist/dry). In none of the experimental conditions tested was synchronous hatching obtained.Possible causal factors (mixing of the bottom sediments by cattle, egg age, storage conditions, differential exposure to environmental cues as well as variability in hatching response even at clutch level) are discussed. IntroductionMany residents of temporary pools produce long-lived resting eggs enabling survival during unfavourable conditions. The changing nature of these habitats requires adaptation to very different environmental regimes. Moreover, the predictability and the frequency of the wet/dry phases vary greatly among habitats, depending on factors like climate, latitude, altitude, nature of the sediment etc. Therefore population persistence requires local adaptations in life history traits and, particularly in the hatching behaviour of the resting stages (BELK and COLE, 1975;WIGGINS et al., 1980). The more unpredictable the local habitat, the higher the risk of extinction favouring the evolution of adaptations that "spread the risk" (see review in SIMOVICH and HATHAWAY, 1997;BRENDONCK et al., 1998). Not all of the eggs deposited at one time will hatch during the same subsequent inundation and thus an egg bank (sensu DE STASIO, 1989) forms in the sediment, acting as a reserve for the future. In addition to information about quantitative reproductive characteristics, understanding the behaviour and functioning of an egg bank is of fundamental importance in identifying any local adaptations to habitat uncertainty.Internat. Rev. Hydrobiol.

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The influence of bioturbation on physical, chemical and biological parameters in aquatic environments: A review

Cited by 172 publications

References 56 publications

Remobilisation of uranium from contaminated freshwater sediments by bioturbation

Remobilisation of uranium from contaminated freshwater sediments by bioturbation

The in vitro influence of the burrowing polychaete Nereis diversicolor on the fate of petroleum hydrocarbons in marine sediments

Structure and Functioning of the “Egg Bank” of a Fairy Shrimp in a Temporary Pool: Chirocephalus ruffoi from Pollino National Park (Southern Italy) as a Case Study

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