Benthic community respiration near the Woods Hole sewage outfall

Smith, Kenneth L.; Rowe, Gilbert T.; Nichols, Jean A.

doi:10.1016/0302-3524(73)90058-3

Cited by 39 publications

(9 citation statements)

References 7 publications

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“…The observed rates ranged from 1.8 mmole O 2 per square meter per day in a sample from New Bedford Harbor in March 1994 to 37 mmole O 2 per square meter per day in a sample from New Bedford Harbor in October 1994. After accounting for temperature, these estimates agree with previous estimates of benthic oxygen consumption in Buzzards Bay [29–32].…”

Section: Resultssupporting

confidence: 87%

“…Although the observed fluxes in the microcosms were often significantly different from zero, it is important to determine if the fluxes are large enough to be ecologically relevant to the metal cycles in New Bedford Harbor and Buzzards Bay. Fitting the temperature data from this study and from previous studies [29–32] to a sinusoidal curve, the estimated mean bottom water temperature for Buzzards Bay and New Bedford Harbor is approximately 12°C. This value can applied to the microcosm data to estimate the mean annual sediment–water fluxes of metals in Buzzards Bay and New Bedford Harbor.…”

Section: Resultsmentioning

confidence: 81%

“…The linear relationships described in this study are therefore only valid over a finite range of oxygen uptake rates. However, the incubation temperature for microcosm NBH1094A, 22°C, is an extreme value for these ecosystems [29–32]. The linear equations may therefore adequately assess metal fluxes over the general range of ecological condition seen in New Bedford Harbor and Buzzards Bay.…”

Section: Resultsmentioning

confidence: 99%

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Relationship between oxygen consumption and sediment‐water fluxes of heavy metals in coastal marine sediments

Shine

Ika

Ford

1998

Enviro Toxic and Chemistry

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Abstract-The relationship between benthic oxygen demand and the sediment-water flux of six heavy metals (cobolt [Co], nickel [Ni], copper [Cu], zinc [Zn], cadmium [Cd], and lead [Pb]) was examined at two locations: New Bedford Harbor and Buzzards Bay, Massachusetts, USA. Dissolved metal fluxes were measured in laboratory microcosms incubated in the dark at in situ temperatures, and microcosms were collected over different seasons to examine temporal and spatial variability in the fluxes. The net flux of all metals was generally out of the sediments. However, at low rates of benthic oxygen demand, net flux of Pb and Co was into the sediments. When data from the two sites are combined, regression of metal fluxes (normalized to sediment metal content) against benthic oxygen demand was significant for all metals (r 2 ϭ 0.58-0.85), with all slopes significantly different from zero. The flux values (normalized to sediment metal content) ranged from Ϫ1.4 (mmole/m 2 /d)/(mole/mole C) sediment for Zn during winter to 42 (mmole/m 2 /d)/(mole/mole C) sediment for Cd during summer months. The magnitude of the fluxes generally showed the following relationship: Cd Ͼ Zn Ͼ Co, Ni, Cu Ͼ Pb, indicating higher relative mobility for Cd and lower mobility for Pb. The estimated annual fluxes of metals to New Bedford Harbor and Buzzards Bay amount to ϳ0.06% (Pb) to 25% (Cd) of the inventory of metals in the top 2 cm of sediments and can equal the inventory of metals in the water column on a time scale as short as 7 d for Zn.

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Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 81%

Section: Resultsmentioning

confidence: 99%

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Relationship between oxygen consumption and sediment‐water fluxes of heavy metals in coastal marine sediments

Shine

Ika

Ford

1998

Enviro Toxic and Chemistry

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“…The mean contribution of the chemical SOD to the total SOD in the study area was 58.87 %, lower than that of 71 % reported in Horseshoe Lake (Wang 1980) and 62 % reported by Pamatmat (1971). Hargrave (1972) and Smith et al (1973) found chemical SOD of 10-30 % and 22.1 %, respectively, of the total SOD. Liu (1973) found a biological SOD of more than 65 % of the total SOD at the sediment surface.…”

Section: Biological and Chemical Contributions To The Sodcontrasting

confidence: 61%

Total, chemical, and biological oxygen consumption of the sediments in the Ziya River watershed, China

Rong

Shan

2016

Environ Sci Pollut Res

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Sediment oxygen demand (SOD) is a critical dissolved oxygen (DO) sink in many rivers. Understanding the relative contributions of the biological and chemical components of SOD would improve our knowledge of the potential environmental harm SOD could cause and allow appropriate management systems to be developed. A various inhibitors addition technique was conducted to measure the total, chemical, and biological SOD of sediment samples from 13 sites in the Ziya River watershed, a severely polluted and anoxic river system in the north of China. The results showed that the major component of SOD was chemical SOD due to iron predominate. The ferrous SOD accounted for 21.6-78.9 % of the total SOD and 33.26-96.79 % of the chemical SOD. Biological SOD represented 41.13 % of the overall SOD averagely. Sulfide SOD accounted for 1.78-45.71 % of the total SOD and it was the secondary predominate of the chemical SOD. Manganous SOD accounted for 1.2-16.6 % of the total SOD and it was insignificant at many sites. Only four kinds of benthos were collected in the Ziya River watershed, resulting from the low DO concentration in the sediment surface due to SOD. This study would be helpful for understanding and preventing the potential sediment oxygen depletion during river restoration.

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“…Brown et al . 1986, Ntow & Khawja 1989, Fowler 1990 for a review), and changes in the distribution and abundance of a variety of marine organisms ranging from bacteria to fish (Smith et al . 1973, Grigg 1994 .…”

Section: Introductionmentioning

confidence: 99%

Trophically-based assessment of the impacts of deepwater sewage disposal on a demersal fish community

Otway¹,

Sullings²,

Lenehan³

1996

Environ Biol Fish

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SynopsisThe impacts of sewage disposal on the demersal fish community were identified after approximately 2 years of operation of a deepwater outfall off Sydney, NSW, Australia . Gut-content analyses were used as a basis for identifying groups of fish with dietary similarities . Similar results from multivariate analyses (Bray-Curtis dissimilarity measure and MDS) identified 8 trophically-similar groups of fish . The majority of the fish comprising these groups consumed organisms in the soft-bottom community . Only 5 of the 8 trophic groups identified could be analysed in detail as individuals comprising the remaining groups were not caught in sufficient numbers near the outfall. Asymmetrical analyses of variance showed that the numbers of individuals and species in one particular trophic group increased significantly following the commissioning of the Bondi deepwater outfall . However, the proportional representation of individuals in the 5 trophic groups examined did not change. Five hypotheses are advanced to account for the observed impacts . Of these, hypotheses centred around increased habitat complexity and a numerical response to increases in prey abundance warrant further investigation . Directions of future research and the limitations of various designs to assess environmental impacts are discussed in light of these results .

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Benthic community respiration near the Woods Hole sewage outfall

Cited by 39 publications

References 7 publications

Relationship between oxygen consumption and sediment‐water fluxes of heavy metals in coastal marine sediments

Relationship between oxygen consumption and sediment‐water fluxes of heavy metals in coastal marine sediments

Total, chemical, and biological oxygen consumption of the sediments in the Ziya River watershed, China

Trophically-based assessment of the impacts of deepwater sewage disposal on a demersal fish community

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