Effect of sewage effluents on germination of three marine brown algal macrophytes

Burridge, Trevor R.; Portelli, T; Ashton, P. J.

doi:10.1071/mf9961009

Cited by 26 publications

(17 citation statements)

References 14 publications

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“…S. japonica has similar characteristics, as no survival of spores at salinities less than 5% were found. It has often been observed that reduced salinity exerts damaging effects on germination and embryo growth in many brown macroaglal taxa, by increasing osmotic pressure which results in disturbances in membrane permeability (Burridge et al 1996).…”

Section: Resultsmentioning

confidence: 99%

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: Resultsmentioning

confidence: 99%

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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“…Las aguas residuales alteran el contenido orgánico y la composición bioquímica de los sedimentos (Cotano y Villate 2006), así como las propiedades bioquímicas de la columna de agua (Oviatt et al 1987), afectando las comunidades biológicas mediante explosiones de algas consumidoras de nitrógeno (Thornberg et al 2008), concentraciones elevadas de patógenos y bacterias que pueden incorporarse a la cadena alimentaria (Korajkic et al 2010), erosión del arrecife por procesos mecánicos, bioquí-micos y biológicos (Pastorok y Bilyard 1985), cambios en la síntesis de proteínas y crecimiento (Houlihan et al 1994), cambios en las tasas de respiración y alimentación (Butler et al 1990) e inhibición de la germinación (Burridge et al 1996).…”

Section: Introductionunclassified

“…Estos trabajos han demostrado que los vertidos residuales pueden alterar patrones en la estructura de aguas y la diversidad de las comunidades afectadas, aunque los efectos pueden variar Influence of the combined disposal of sewage and brine on meiofauna Influencia de la combinación de vertidos de aguas residuales y salmuera sobre la meiofauna Guidetti et al 2003, Chapman et al 2005. Sewage discharges alter the organic content and biochemical composition of sediments (Cotano and Villate 2006), as well as the biochemical properties of the water column (Oviatt et al 1987), affecting biological assemblages through blooms of nitrogen-consuming algae (Thornberg et al 2008); high concentrations of pathogens and bacteria that may enter the food chain (Korajkic et al 2010); reef erosion by mechanical, chemical, and biological processes (Pastorok and Bilyard 1985); changes in protein synthesis and growth (Houlihan et al 1994); changes in feeding and respiration rates (Butler et al 1990); and inhibition of germination (Burridge et al 1996).…”

Section: Introductionmentioning

confidence: 99%

Influence of the combined disposal of sewage and brine on meiofauna

et al. 2013

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ABSTRACT.Confluence of anthropogenic influences is common in coastal areas (e.g., disposal of different pollutants like industrial and domestic sewage, brine, etc.). In this study we assessed whether the combined disposal of domestic sewage and brine altered patterns in the abundance and assemblage structure of subtidal meiofauna inhabiting sandy seabeds. ) from the discharge outfall. This pattern was particularly accentuated for nematodes. Proximity to the discharge point also altered patterns in meiofaunal assemblage structure, though temporal shifts in the sedimentary composition also contributed to explain differences in the meiofaunal assemblage structure. As a result, meiofauna may be a reliable tool for monitoring studies of the combined disposal of sewage and brine as long as potential confounding factors (here temporal changes in grain size composition) are considered.Key words: sewage, brine, meiofauna, sandy seabeds, Canary Islands. RESUMEN.La confluencia de diferentes impactos antropogénicos es común en áreas costeras marinas; por ejemplo, el vertido conjunto de varios contaminantes (aguas residuales industriales y domésticas, salmuera, etc.) en la misma zona. En este estudio, se examinó si el vertido combinado de aguas residuales domésticas y salmuera altera los patrones de abundancia y la estructura de la comunidad meiofaunal del medio submareal. Las muestras fueron recolectadas en mayo de 2008 y enero de 2009 a 0, 15 y 30 m de distancia del punto de vertido. Las abundancias meiofaunales fueron más elevadas en el punto de vertido (1663.05 ± 1076.86 individuos 10 cm -2 , media ± error estándar) que a 15 m (471.21 ± 307.97 individuos 10 cm -2 ) y 30 m de distancia (316.50 ± 256.85 individuos 10 cm -2 ) del punto de vertido. Este patrón de abundancia ha sido acusado particularmente para los nematodos. La proximidad al punto de vertido alteró la estructura de la comunidad meiofaunal, aunque los cambios estacionales en la composición del sedimento también contribuyeron a explicar las diferencias en las abundancias meiofaunales y en la estructura de la comunidad. Como resultado, la meiofauna puede considerarse una herramienta fiable para estudios de seguimiento de vertidos combinados de aguas residuales y salmuera, siempre y cuando la presencia de factores enmascarantes, como los cambios estacionales en la composición granulométrica del sedimento, se incluyan en los diseños.Palabras clave: aguas residuales, salmuera, meiofauna, fondos arenosos, islas Canarias.

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“…Bellgrove et al (1997) suggested that absence of H. banksii in locations experiencing environmental pressure may be a result of competitive interaction with more opportunistic species such as Ulva and Enteromorpha. In addition, inhibited germination of H. banksii zygotes at locations receiving sewage effluent was demonstrated by Burridge et al (1996) with greater sensitivity of the species being displayed to poorer quality discharge. The absence of H. banksii throughout Sydney Harbour may be associated with sporadic contaminated freshwater input or be due to competition with other species.…”

Section: Bush Locations Were Dominated By Bembicium Auratum Saccostrmentioning

confidence: 99%

Assessing the Response of Estuarine Intertidal Assemblages to Urbanised Catchment Discharge

Courtenay

Gladstone

Schreider

2005

Environ Monit Assess

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Abstract. Measurement of intertidal rock assemblages was investigated as a potential biological indicator to provide a quantitative estimate of the impact of urbanised catchment discharge on the estuaries of Sydney, Australia, from 1995 to 1999. Based on the presence and characteristics of adjacent human activities, sampling locations were categorised as:Bush; Urban; Urban with Sewer Overflows; and Industry with Sewer Overflows. In Sydney Harbour, variation in assemblage structure was measured between most impact categories, however differences between impact categories were not consistent for each year.Nevertheless, in years of above average rainfall (1998-99), reference assemblages adjacent to national parks and distant from urbanisation were different to all other putatively impacted assemblages. Variability within assemblages was least at reference locations in each year and greatest at locations adjacent to stormwater canals and sewer overflows, particularly in 1998-1999. Variation in assemblage structure in Sydney estuaries was most strongly correlated with chlorophyll-a concentrations. Univariate analysis also identified highly significant differences for a number of factors, however, interactions between year, impact categories and location for numerous analyses, confounded the differentiation between impact categories. The results suggest that intertidal rock assemblages in Sydney Harbour and surrounding estuaries appear to be responding to the quality and quantity of discharge from urbanised catchments and, furthermore, that assemblages are more suitable than individual taxa to indicate the difference between Bush and anthropogenically disturbed estuarine locations.1 This is the version of the manuscript that was accepted for publication in Environmental Monitoring and Assessment (2005) 107: 375-398.

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Effect of sewage effluents on germination of three marine brown algal macrophytes

Cited by 26 publications

References 14 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

Influence of the combined disposal of sewage and brine on meiofauna

Assessing the Response of Estuarine Intertidal Assemblages to Urbanised Catchment Discharge

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