An evaluation of the use of redox measurements for characterizing recent sediments

Bågander, Lars Erik; Niemistö, Lauri

doi:10.1016/0302-3524(78)90094-4

Cited by 37 publications

(9 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Boström et al (1978) reported that Fe203 fluctuates widely in the Gulf of Bothnia, from 2-4 Vo in shallow areas to 10-14 Wo in some deep areas, and that MnO shows an almost exponential increase with depth of the deposits. Niemistö et al (1978) also observed that the iron content of sediments in deeper areas of the Bothnian Sea is higher than in shallow areas. At site E3 1 the iron content has been reported to be about 6 Vo (dry weight) (Niemistö et aL 1978).…”

Section: Discussionmentioning

confidence: 62%

“…Niemistö et al (1978) also observed that the iron content of sediments in deeper areas of the Bothnian Sea is higher than in shallow areas. At site E3 1 the iron content has been reported to be about 6 Vo (dry weight) (Niemistö et aL 1978). Con sequently, the higher content of Fe in deeper areas of the Bothnian Sea may lower the availability of trace metais such as zinc and copper to benthic invertebrates, iii spite of com paratively high total contents of these elements in the sediments.…”

Section: Discussionmentioning

confidence: 62%

“…Hallberg 1979). The higher contents of iron and manganese oxides in sediments at deeper sites (Boström et al 1978, Niemistö et at. 1978 are associated with higher amounts of zinc and copper.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Benthic macro- and meiofauna in the Gulf of Bothnia (northern Baltic)

Elmgren¹,

Rosenberg²,

Andersin³

et al. 1985

Deep Sea Research Part B. Oceanographic Literature Review

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 62%

Section: Discussionmentioning

confidence: 62%

See 1 more Smart Citation

Benthic macro- and meiofauna in the Gulf of Bothnia (northern Baltic)

Elmgren¹,

Rosenberg²,

Andersin³

et al. 1985

Deep Sea Research Part B. Oceanographic Literature Review

View full text Add to dashboard Cite

“…2) is related to a decrease in the dissolved oxygen concentration in the pore water. The negative Eh values are therefore associated with suboxic to anoxic conditions as reported in other studies (Bågander, 1978;Danovaro et al, 2004).…”

Section: Ph and Potential Redox (Eh)mentioning

confidence: 64%

Accumulation of trace metals in sediments in a Mediterranean Lagoon: Usefulness of metal sediment fractionation and elutriate toxicity assessment

Zaaboub

Martins

Dhib

et al. 2015

Environmental Pollution

View full text Add to dashboard Cite

“…Redox potential was read on a portable pH-millivolt meter (Denver Instruments) connected to a saturated calomel electrode suspended in the overlying water. Values were corrected to the hydrogen reference electrode scale by adding + 244 mV to each measurement (Bagander & Niemisto 1978). Calibration of the electrodes was verified by measuring the redox potential of quinhydrone dissolved in buffers (pH 4 and 7;Bohn 1971).…”

Section: Methodsmentioning

confidence: 99%

Characteristics of vesicomyid clams and their environment at the Blake Ridge cold seep, South Carolina, USA

Heyl¹,

Gilhooly²,

Chambers³

et al. 2007

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Spatial distributions and patchiness of dominant megafaunal invertebrates in deep-sea seep environments may indicate heterogeneities in the flux of reduced chemical compounds. At the Blake Ridge seep off South Carolina, USA, the invertebrate assemblage includes dense populations of live vesicomyid clams (an undescribed species) as well as extensive clam shell beds (i.e. dead clams). In the present study, we characterized clam parameters (density, size-frequency distribution, reproductive condition) in relation to sulfur chemistry (sulfide and sulfate concentrations and isotopic compositions, pyrite and elemental sulfur concentrations) and other sedimentary metrics (grain size, organic content). For clams > 5 mm, clam density was highest where the total dissolved sulfide concentration at 10 cm depth (ΣH 2 S 10cm ) was 0.4 to 1.1 mmol l -1 ; juvenile clams (< 5 mm) were most dense where ΣH 2 S 10cm was lowest. Clams were reproductively capable across a broad range of ΣH 2 S 10cm (0.1 to 6.4 mmol l -1 ), and females in the sampled populations displayed asynchronous gametogenesis. Sulfide concentrations in porewaters at the shell-sediment interface of cores from shell beds were high, 3.3 to 12.1 mmol l -1 , compared to <1 mmol l -1 sulfide concentrations at the clam-sediment interface in live clam beds. Concentration profiles for sulfide and sulfate in shell beds were typical of those expected where there is active microbial sulfate reduction. In clam beds, profiles of sulfide and sulfate concentrations were also consistent with rapid uptake of sulfide by the clams. Sulfate in shell beds was systematically enriched in 34 S relative to that in clam beds due to microbial fractionation during sulfate reduction, but in clam beds, sulfate δ 34 S matched that of seawater (~20 ‰). Residual sulfide values in clam and shell beds were correspondingly depleted in 34 S. Based on porewater sulfide concentrations in shell beds at the time of sampling, we suggest that clam mortality may have been due to an abrupt increase in sulfide concentration and sulfide toxicity, but other alternatives cannot be eliminated.

show abstract

An evaluation of the use of redox measurements for characterizing recent sediments

Cited by 37 publications

References 10 publications

Benthic macro- and meiofauna in the Gulf of Bothnia (northern Baltic)

Benthic macro- and meiofauna in the Gulf of Bothnia (northern Baltic)

Accumulation of trace metals in sediments in a Mediterranean Lagoon: Usefulness of metal sediment fractionation and elutriate toxicity assessment

Characteristics of vesicomyid clams and their environment at the Blake Ridge cold seep, South Carolina, USA

Contact Info

Product

Resources

About