Survival and bioturbation of the amphipod Monoporeia affinis in sulphide-rich sediments

Modig, H.; Ólafsson, Emil

doi:10.1007/s002270000445

Cited by 22 publications

(11 citation statements)

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“…In a laboratory experiment, M. affinis (8000 ind. m ) was able to oxidise the upper 8 mm of a sulphide-rich sediment in less than 2 wk (Modig & Ólafsson 2001). Oxidation of labile sulphides was found to be directly related to macrofaunal density.…”

Section: Nitrogen Mineralisation and Benthic N Fluxesmentioning

confidence: 92%

“…Quite contradictory to these observations, M. affinis has been classified as a species intolerant to reduced environments in physiological studies and not capable of detoxifying reduced compounds such as hydrogen sulphide (Hagerman et al 1997, Sandberg-Kilpi et al 1999. Modig & Ólafsson (2001) suggested that this discrepancy between observations could be attributed to the formation of sulphide-free pockets in the sediment by irrigation of oxygen-rich overlying water into the burrows of M. affinis.…”

Section: Nitrogen Mineralisation and Benthic N Fluxesmentioning

confidence: 98%

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Experimental recolonisation of Baltic Sea reduced sediments: survival of benthic macrofauna and effects on nutrient cycling

Karlson¹,

Hulth²,

Ringdahl³

et al. 2005

Mar. Ecol. Prog. Ser.

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A recolonisation experiment was performed in vitro on highly reduced laminated Baltic Sea sediments initially devoid of larger benthic fauna. The survival capacity of 3 common benthic species Monoporeia affinis, Macoma balthica and Marenzelleria viridis was investigated along with overall effects of bioturbation and bioirrigation on benthic reaction and transport processes. ) in all cores. Denitrification, using nitrate supplied from the overlying water (D w ), was similar to coupled nitrification/denitrification (D n ), although D w was significantly higher than D n in the M. affinis cores. In conjunction with high nitrate fluxes into the sediment and high ammonium fluxes to the overlying water, the generally low denitrification rates indicated dissimilatory nitrate reduction to ammonium (DNRA) as the main pathway for nitrate removal. Thus, the main source of bottom water ammonium was overlying water nitrate, rather than ammonium produced in surface sediments during mineralisation of organic N.

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Section: Nitrogen Mineralisation and Benthic N Fluxesmentioning

confidence: 92%

Section: Nitrogen Mineralisation and Benthic N Fluxesmentioning

confidence: 98%

Experimental recolonisation of Baltic Sea reduced sediments: survival of benthic macrofauna and effects on nutrient cycling

Karlson¹,

Hulth²,

Ringdahl³

et al. 2005

Mar. Ecol. Prog. Ser.

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“…Subsequent to a major saline inflow, Gotland Deep is recolonized within two to three years mainly by nectobenthic species; the polychaete Bylgides sarsi , the pontoporeiid amphipods Pontoporeia femorata and Monoporeia affinis , and the cumacean Diastylis rathkei . These nectobenthic animals spend much time swimming in the water column, and they have probably been imported passively with currents from more oxic areas (Modig & Ólafsson, 2001; Ólafsson & Limén, 2002). In addition, the very motile endobenthic polychaete Scoloplos armiger may arrive within the first two to three years.…”

Section: Gotland Deep Benthosmentioning

confidence: 99%

Physicochemical and biological influences on sedimentary‐fabric formation in a salinity and oxygen‐restricted semi‐enclosed sea: Gotland Deep, Baltic Sea

et al. 2011

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Two ca 8000 year long sediment cores from the Gotland Deep, the central sub‐basin of the Baltic Sea, were studied by means of digital images, X‐radiographs and scanning electron microscopy–energy‐dispersive X‐ray mineralogical analysis to gain understanding of the physicochemical and biological influences on sedimentary‐fabric formation in modern and ancient seas with a high flux of organic carbon, and associated oxygen stress and depauperate ichnofauna. Four lithofacies were recognized: (i) sharply laminated mud; (ii) biodeformed mud; (iii) burrow‐mottled mud; and (iv) sedimentation‐event bed. The sharply laminated and burrow‐mottled facies dominate the cores as alternating long intervals, whereas the biodeformed and sedimentation‐event facies occur as thin interbeds within the sharply laminated intervals. The sharply laminated mud comprises alternating diatom‐rich and lithic laminae, with occasional Mn‐carbonate laminae. Lamination discontinuity horizons within the laminites, where the regular lamination is overlain sharply by gently inclined lamination, challenge the traditional view of mud accumulation by settling from suspension, but indicate localized accumulation by particle‐trapping microbial mats and, potentially, by the rapid lateral accretion of mud from bedload transport. The biodeformed interbeds record brief (few years to few decades) oxic–dysoxic conditions that punctuated the anoxic background conditions and permitted sediment‐surface grazing and feeding by a very immature benthic community restricted to the surface mixed tier. The likely biodeformers were meiofauna and nectobenthic pioneers passively imported with currents. The sedimentation‐event interbeds are distal mud turbidites deposited from turbidity currents probably triggered by severe storms on the adjacent coastal areas. The turbidite preservation was favoured by the anoxic background conditions. The long burrow‐mottled intervals are characterized by intensely bioturbated fabrics with discrete Planolites, rare Arenicolites/Polykladichnus and very rare Lockeia trace fossils, as well as bivalve biodeformational structures which represent shallowly penetrating endobenthic feeding and grazing strategies and permanent dwellings. These burrowed intervals represent longer periods (several years to few centuries) of oxic–dysoxic conditions that permitted maturation in the benthos by means of larval settling of opportunistic worm‐like macrofauna and bivalves, resulting in the development of a transition tier. These observations imply more dynamic and oxic depositional conditions in Gotland Deep than previously thought. Comparison to previous zoobenthic studies in the area allowed discussion of the benthic dynamics, and the identification of probable biodeforming and trace‐producing species. Implications for current biofacies and trace‐fossil models are discussed.

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“…For example, in eutrophied waters, traits that constrain benthic nutrient regeneration may substantially contribute to ecosystem recovery. Moreover, some species, such as Monoporeia and Mysis, are capable of re-oxygenating anoxic sediments and neutralizing toxic sulphide compounds (Modig & Olafsson 2001, Lindström & Sandberg-Kilpi 2008. In the present study, we aim to describe how the shift in relative abundances of the 4 taxa, encompassing functional shifts -the decrease in motile and increase in semi-motile taxa -may alter benthic habitats and the regime of nutrient cycling in the Baltic Sea.…”

Section: Introductionmentioning

confidence: 99%

Habitat modification mediated by motile surface stirrers versus semi-motile burrowers: potential for a positive feedback mechanism in a eutrophied ecosystem

Viitasalo-Frösen¹,

Laine²,

Lehtiniemi³

2009

Mar. Ecol. Prog. Ser.

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We performed a 4 wk laboratory experiment with the semi-motile burrowers Macoma balthica and Marenzelleria spp. and the motile surface sediment stirrers Monoporeia affinis and Mysis mixta to study their effects on the transport of tracer particles (mean diameter [л] 1 µm) in the sediment, sediment parameters (depth of the oxidized layer, water content, organic matter content), water turbidity, and nutrient fluxes across the sediment-water interface , NO 2 -+ NO 3 -, NH 4 + ; measured weekly). Two densities were included for each taxon, representing a low and a high field density. M. balthica significantly increased particle mixing, the rates being 59.6 and 61.9 × 10 -3 cm 2 d -1. While all taxa increased turbidity in the overlying water, the strongest effects were caused by M. affinis and M. mixta, resulting in 112-and 45-fold increases, respectively. In addition, these 2 motile species increased oxidation of the sediment surface layers. A distinctive difference in the nutrient fluxes was observed between the semi-motile (M. balthica, Marenzelleria spp.) and the motile taxa (M. affinis, M. mixta). The former increased the efflux of both PO 4 3 -and NH 4 + , while the latter suppressed the efflux of NH 4 + and decreased the sediment uptake of NO x , indicating enhanced N removal. Higher nutrient exchange rates were observed at the higher animal densities. We conclude that a shift in the benthic communities from the 2 motile to the 2 semi-motile taxa, observed throughout the northern Baltic Sea, may notably alter the regime of benthic nutrient cycling and thereby the performance of the entire ecosystem.KEY WORDS: Bioturbation · Motile · Semi-motile · Nutrient cycling · Particle mixing · Turbidity Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 376: [21][22][23][24][25][26][27][28][29][30][31][32] 2009 The macrozoobenthos of the northern Baltic Sea is characterized by a low number of species, with the amphipod Monoporeia affinis Lindström, the bivalve Macoma balthica (L.) and the invasive polychaetes Marenzelleria spp. being some of the few key organisms (Laine et al. 1997, Karlson et al. 2002. In addition to sediment-dwelling taxa, the nectobenthic mysid Mysis mixta Lilljeborg is an important, although frequently neglected, component of the benthic biota (e.g. Lindström & Sandberg-Kilpi 2008). These taxa, hereafter referred to as Monoporeia, Macoma, Marenzelleria, and Mysis, differ in terms of their degree of motility and their burrowing depth: Mysis is epibenthic, while the others belong to the infauna, Marenzelleria being the only deep-burrowing (>10 cm) taxon. Monoporeia and Mysis are motile detritivores and carnivores, stirring the sediment surface (Lopez & Elmgren 1989, Viherluoto et al. 2000, while Macoma and Marenzelleria are semi-motile detritivores, capable of switching between deposit-and suspension-feeding modes (Dauer et al. 1981, Lin & Hines 1994.Large-scale changes in the relative abundance of these 4 taxa have occurred in the northern Balt...

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Survival and bioturbation of the amphipod Monoporeia affinis in sulphide-rich sediments

Cited by 22 publications

References 0 publications

Experimental recolonisation of Baltic Sea reduced sediments: survival of benthic macrofauna and effects on nutrient cycling

Experimental recolonisation of Baltic Sea reduced sediments: survival of benthic macrofauna and effects on nutrient cycling

Physicochemical and biological influences on sedimentary‐fabric formation in a salinity and oxygen‐restricted semi‐enclosed sea: Gotland Deep, Baltic Sea

Habitat modification mediated by motile surface stirrers versus semi-motile burrowers: potential for a positive feedback mechanism in a eutrophied ecosystem

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