Long-term Monitoring of the Effects of Treated Sewage Effluent on the Intertidal Macroalgal Community Near Cape Schanck, Victoria, Australia

Brown, Victoria Bolanle; Davies, Sumiko; Synnot, R. N.

doi:10.1515/botm.1990.33.1.85

Cited by 66 publications

(63 citation statements)

References 11 publications

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“…The high surface-area to volume ratio of these mass-forming macroalgae favours rapid nutrient uptake, high production and rapid growth rates, which enable them to outcompete the original vegetation (Littler and Littler 1980;Hein et al 1995;Pedersen and Borum 1997). Eutrophication effects on the benthic vegetation of coastal waters are reviewed by Schramm and Nienhuis (1996) for Europe and by Thorne-Miller et al (1983), Tewari and Joshi (1988), Brown et al (1990) and Valiela et al (1997) for other parts of the world.…”

Section: Introductionmentioning

confidence: 99%

Regulation of spatial and seasonal variation of macroalgal biomass in a brackish, eutrophic lake

Malta

Verschuure

Nienhuis

2002

Helgoland Marine Research

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Processes leading to biomass variation of Ulva were investigated at two contrasting sites in the eutrophic Veerse Meer (The Netherlands). Ulva species dominated at the Middelplaten site, while at the Kwistenburg site a mixture of Ulva spp. and Chaetomorpha linum dominated. Total summer macroalgal biomass was higher at Middelplaten than at Kwistenburg (282 and 79 g DW m -2 , respectively). Growth rates of Ulva spp. were high at both sites in May 1992 (cage mean 0.28-0.30 day -1 ), but quickly dropped to lower values (0.05-0.10 day -1 ). In May, growth rates were significantly highest at Kwistenburg, while during the rest of the season growth rates were similar for both sites. Temperature, pH, dissolved oxygen, salinity, light attenuation, phytoplankton and nutrient concentrations did not differ between sites. The relation between variation in Ulva spp. growth rates and environmental parameters was analysed using stepwise multiple regression, showing that light and temperature were the main variables regulating Ulva spp. growth rates. As Ulva growth rates were similar for both sites but biomass was much lower at Kwistenburg it was concluded that a large amount of produced biomass was lost at Kwistenburg. Although the exact reason for this remains unclear, it seems most likely that transport of macroalgae by wind and waves is a very important factor. This study shows the importance of simultaneously measuring growth rates and biomass at a high temporal resolution to reveal the mechanisms responsible for spatial variation in macroalgal biomass in shallow coastal areas.

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Section: Introductionmentioning

confidence: 99%

Regulation of spatial and seasonal variation of macroalgal biomass in a brackish, eutrophic lake

Malta

Verschuure

Nienhuis

2002

Helgoland Marine Research

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“…The decline of large perennial algae under the effect of pollution has been extensively reported, e.g. for several species of kelps (Burrows & Pybus, 1971;Borowitzka, 1972;Littler & Murray, 1975), Cystoseira (Golubic, 1970;Munda, 1980Munda, , 1993Sfriso, 1987;Rodrı´guez-Prieto & Polo, 1996;Cormaci & Furnari, 1999;Benedetti-Cecchi et al, 2001;Thibaut et al, 2005;Pinedo et al, 2007), Fucus (Russell, 1974;Vogt & Schramm, 1991;Bonk et al, 1992;Kautsky, H. et al, 1992;Eriksson et al, 2002), Sargassum (Hirose, 1978;Munda, 1993;Thibaut et al, 2005), Ascophyllum (Rueness, 1973;Bonk & Lein, 1978), Hormosira (Brown et al, 1990) or Gelidium sesquipedale (Gorostiaga & Dı´ez, 1996;Dı´ez et al, 2003). These species are good competitors in habitats with low stress and disturbance, but are progressively replaced by stress-tolerant species when pollutants are introduced into the environment.…”

Section: Recovery Stagesmentioning

confidence: 97%

“…In this context, several papers (Belsher, 1974;Littler & Murray, 1975;Brown et al, 1990;Cormaci & Furnari, 1991) report less algal cover in the vicinity of sewage effluent outfalls, whereas Soltan et al (2001) found no significant differences in algal cover in the vicinity of the Marseille sewage outfall 8 years after the setting up of a wastewater treatment plant. These results suggest that a significant reduction in algal cover takes place when a threshold of pollution intensity is exceeded.…”

Section: Algal Covermentioning

confidence: 99%

“…The identification of G. pusillum and C. elongata as bioindicator species at two different pollution levels coincides with the findings of several other studies. Although calcareous red algae are considered as domestic pollution-tolerant species (Bellan & Bellan-Santini, 1972;North et al, 1972;Kindig & Littler, 1980;Are´valo et al, 2007), several authors highlight their partial replacement by Gelidium pusillum in the surroundings of the outfalls (Littler & Murray, 1975;May, 1985;Brown et al, 1990). It seems likely that these differences in Corallina spp.…”

Section: Recovery Stagesmentioning

confidence: 99%

“…In general, studies on phytobenthic communities subject to pollution have documented a reduction in species richness (Brown et al, 1990;Munda, 1993;Dı´ez et al, 1999), a decline in large perennial algae (Eriksson et al, 2002;Thibaut et al, 2005), and an increase in turf-forming algae (Gorgula & Connell, 2004) and ephemeral species Eriksson et al, 2002). It might be expected that all these responses in community structure would reverse as pollution decreases, but the recovery processes of benthic assemblages are poorly documented (Hardy et al, 1993;Bonk et al, 1996;Gorostiaga & Dı´ez, 1996;Archambault et al, 2001;Soltan et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

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Recovery stages over long-term monitoring of the intertidal vegetation in the ‘Abra de Bilbao’ area and on the adjacent coast (N. Spain)

Díez

Santolaria

Secilla

et al. 2009

European Journal of Phycology

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Few studies have documented the recovery of phytobenthic marine assemblages following the reduction of long-standing sewage discharges. This paper reports on the main changes in intertidal macroalgal communities after the gradual application from 1984 to 2006 of a sewerage plan for the metropolitan area of Bilbao. Sampling sites along a pollution gradient were surveyed eight times during the course of the above period. Improvements in water quality were followed by noticeable changes in species composition and vegetation structure. Species richness significantly increased throughout the study area, while algal cover only increased at the most degraded sites. Pollution removal promoted the development of morphologically more complex species. Intertidal vegetation at the degraded sites became progressively more similar to that at the reference site. Five recovery stages discriminated by different species (SIMPER routine) were characterized from ordination (MDS) analyses: (i) extremely degraded -Gelidium pusillum is the most abundant species which is accompanied by Bachelotia antillarum at the low intertidal level (0.75 m); (ii) heavily degraded -Gelidium pusillum remains dominant and accompanied by Caulacanthus ustulatus at the high intertidal level (1.4 m); (iii) moderately degraded -Corallina elongata becomes dominant, C. ustulatus remains abundant at the high level; (iv) slightly degraded -C. elongata remains dominant in both tidal levels, Chondracanthus acicularis and Lithophyllum incrustans are abundant at the high level, whereas the latter, Pterosiphonia complanata and Stypocaulon scoparium become abundant at the low level; (v) reference stage -Lithophyllum incrustans and Laurencia obtusa are abundant together with C. elongata at the high level, whereas Stypocaulon scoparium dominates the low level, with Bifurcaria bifurcata, Jania rubens and Cystoseira tamariscifolia as abundant species. Thus, this study reveals that phytobenthic communities are useful indicators of water quality and provide real data that contribute to the assessment of the ecological status of rocky open shores on the Basque coast.

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Seagrasses and Macroalgae: Importance, Vulnerability and Impacts

Macreadie

Jarvis

Trevathan‐Tackett

et al. 2017

Climate Change Impacts on Fisheries and Aquaculture

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Long-term Monitoring of the Effects of Treated Sewage Effluent on the Intertidal Macroalgal Community Near Cape Schanck, Victoria, Australia

Cited by 66 publications

References 11 publications

Regulation of spatial and seasonal variation of macroalgal biomass in a brackish, eutrophic lake

Regulation of spatial and seasonal variation of macroalgal biomass in a brackish, eutrophic lake

Recovery stages over long-term monitoring of the intertidal vegetation in the ‘Abra de Bilbao’ area and on the adjacent coast (N. Spain)

Seagrasses and Macroalgae: Importance, Vulnerability and Impacts

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