Review of the potential use of brown algal ecotoxicological assays in monitoring effluent discharge and pollution in southern Australia

Burridge, Trevor R.; Bidwell, Joseph R.

doi:10.1016/s0025-326x(02)00126-1

Cited by 24 publications

(20 citation statements)

References 66 publications

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“…The bar denotes least significant difference (LSD) at 5% level and each error bar indicates 95% confidence intervals. Asterisks denote no germination antagonistic and additive effects depending on the kinds of toxicants therein and the degree of treatment the wastewater receives and target constituents removed from the waste-water treatment (Anderson and Hunt 1988;Burridge and Bidwell 2002). However, the present results showed that the two waste-waters exhibited varying, but consistent degrees of toxicity as estimated by the EC 50 values.…”

Section: Testing Waste-watersmentioning

confidence: 46%

“…land runoff, rivers and municipal sewerage can alter the light climate and chemistry of coastal waters with negative impacts on the indigenous biota. In order to maintain the integrity of kelp forests, effective monitoring and management strategies need to be developed that are underpinned by knowledge gained from research on how pollutants affect the biology of these photoautotrophs (Burridge and Bidwell 2002;Eklund and Kautsky 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Early developmental stages of kelps are regarded as excellent experimental systems because they are sensitive to various toxicants and require relatively simple technical procedures (Burridge and Bidwell 2002). Moreover, because these early life stages represent a bottleneck for recruitment, they are ecologically important (Myers et al 2006;Seery et al 2006).…”

Section: Introductionmentioning

confidence: 99%

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Sensitivity of spore germination and germ tube elongation of Saccharina japonica to metal exposure

Han

Kong

Kang³

et al. 2011

Ecotoxicology

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The sensitivity of early life stages of the brown seaweed Saccharina japonica to six metals (Cd, Cu, Hg, Ni, Pb, Zn) and two waste-water samples were investigated and a new toxicity bioassay developed. The two endpoints used were spore germination and germ tube elongation with an exposure time of 24 h. Optimal test conditions determined for photon irradiance, pH, salinity and temperature were darkness, pH 8, 35‰ and 15°C, respectively. The toxicity ranking of five metals was: Hg (EC(50) of 41 and 42 μg l(-1)) > Cu (120 and 81 μg l(-1)) > Ni (2,009 and 1,360 μg l(-1)) > Zn (3,024 and 3,897 μg l(-1)) > Pb (4,760 and 4,429 μg l(-1)) > Cd (15,052 and 7,541 μg l(-1)) for germination and germ tube elongation, respectively. The sensitivities to Cd, Cu and Ni were greater in germ tube elongation than in germination process. When tested against two different waste-water samples (processed animal and printed circuit board waste-water) values of EC(50) were between 21.29 and 32.02% for germination and between 5.33 and 8.98% for germ tube elongation. Despite differences in their chemical composition, the toxic effects of waste-water samples, as indicated by EC(50) values, did not differ significantly for the same endpoints. The CV range for both germination and germ tube elongation was between 4.61 and 37.69%, indicating high levels of precision of the tests. The results compare favourably with those from more established test procedures employing micro- and macroalgae. The advantages and potential limitations of the bioassay for the assessment of anthropogenic impacts on coastal ecosystems and commercial cultivation areas in near-shore environments are discussed.

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Section: Testing Waste-watersmentioning

confidence: 46%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sensitivity of spore germination and germ tube elongation of Saccharina japonica to metal exposure

Han

Kong

Kang³

et al. 2011

Ecotoxicology

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“…A significant decline of large macroalgae due to metal pollution in near shore habitats including South Australia, especially near sewerage discharge and urban run-off sites, has also been reported (Bellgrove et al 1997). However, brown algae have been proposed as a suitable tool for biomonitoring the environmental impacts at effluent discharge sites in South Australia because they exhibit a high degree of reproducibility with low to modest temporal variation and apparent consistency in outcomes from disparate locations (Burridge and Bidwell 2002).…”

Section: Introductionmentioning

confidence: 99%

Metal distributions in seawater, sediment and marine benthic macroalgae from the South Australian coastline

Chakraborty

Owens

2013

Int. J. Environ. Sci. Technol.

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Algal species which are ubiquitous along the coastlines of many countries reflect the environmental conditions of the coastal seawater and may serve as useful biomonitors of anthropogenic pollution. Heavy metal concentrations of ten elements (As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn) of potential environmental concern were determined in seawater, sediments and twelve species of benthic marine macroalgae from four locations (Glenelg, Port Adelaide, Port Broughton and Port Pirie) along the South Australian coastline. The four sites chosen represented varying degrees of metal contamination, where the capacity for benthic macroalgae to accumulate heavy metals from the environment was evaluated. Spatial differences in heavy metal concentration in both seawaters and sediments were observed at all sites with the highest concentrations of heavy metals including Cd (125 lg g -1 ), Pb (2,425 lg g -1 ) and Zn (7,974 lg g -1 ) found in the finer sediment fractions (\250 lm) of Port Pirie. While all algal species studied (Acrosorium polyneurum, Anotrichium tenue, Cystophora Cephalornithos Cystophora monillifera, Cystophora monilliformis, Dictyopteris australis, Gelidium micropterum, Gracilaria, Hormophysa Cuneiformis, Sargassum cinctum, Scaberia agardhii and Ulva lactuca) accumulated metals to varying degrees, Blindigia marginata was a good biomonitor species for a number of metals including Cd, Co, Cr, Fe, Pb and Zn, exhibiting both relatively high total metal concentrations and significant concentration factors.

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“…That ability is the basis of the processes developed to recover residual metallic ions (Burridge and Bidwell 2002;Davis et al 2000;Lodeiro et al 2006;Kalyani et al 2004).…”

mentioning

confidence: 99%

Bioadsorption and ion exchange of Cr3+ and Pb2+ solutions with algae

et al. 2009

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Heavy metals can be removed from effluents and recovered using physico-chemical mechanisms as biosorption processes. In this work "Arribada" seaweed biomass was employed to assess its biosorptive capacity for the chromium (Cr 3+ ) and lead (Pb 2+ ) cations that usually are present in waste waters of plating industries. Equilibrium and kinetic experiments were conducted in a mixed reactor on a batch basis. Biosorption equilibrium and fluidsolid mass transfer constants data were analyzed through the concept of ion exchange sorption isotherm. The respective equilibrium exchange constants (K eqCr = 173.42, K eqPb = 58.86) and volumetric mass transfer coefficients ((k mCr a) = 1.13 × 10 −3 s −1 , (k mPb a) = 0.89 × 10 −3 s −1 ) were employed for the dynamic analysis of Cr and Pb sorption in a fixed-bed flow-through sorption column. The breakthrough curves obtained for both metals were compared with the predicted values by the heterogeneous model (K eqCr = 171.29, K eqPb = 60.14; k mCr a = 7.81 × 10 −2 s −1 , k mPb a = 2.43 × 10 −2 s −1 ), taking into account the mass transfer process. The results suggest that these algae may be employed in a metal removal/recovery process at low cost.

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Review of the potential use of brown algal ecotoxicological assays in monitoring effluent discharge and pollution in southern Australia

Cited by 24 publications

References 66 publications

Sensitivity of spore germination and germ tube elongation of Saccharina japonica to metal exposure

Sensitivity of spore germination and germ tube elongation of Saccharina japonica to metal exposure

Metal distributions in seawater, sediment and marine benthic macroalgae from the South Australian coastline

Bioadsorption and ion exchange of Cr3+ and Pb2+ solutions with algae

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