Fucus vesiculosus as an indicator of heavy metal availability in a fish farm recipient in the northern Baltic Sea

Rönnberg, Olof; Ådjers, Kaj; Ruokolahti, Curt; Bondestam, Maria

doi:10.1016/0025-326x(90)90648-r

Cited by 30 publications

(10 citation statements)

References 12 publications

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“…Not only desireable minerals but also metals in toxic concentrations, heavy metals and other compounds are concentrated in seaweed. For example, lead (Pb), mercury (Hg) cadmium (Cd), copper (Cu), manganese (Mn), zinc (Zn) and the explosive compound trinitrotoluene that may be present in the ambient environment (Besada et al 2009;Cruz-Uribe et al 2007;Greger et al 2007;Mehta and Gaur 2005;Ronnberg et al 1990;Sandau et al 1996). Concentration factors of 10 3 -10 4 for the above heavy metals and even up to 10 6 can be reached for chromium (Cr; references in Lobban and Harrison 1994).…”

Section: Heavy Metalsmentioning

confidence: 97%

Bioactive compounds in seaweed: functional food applications and legislation

Holdt

Kraan²

2011

J Appl Phycol

1,577

1,303

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Seaweed is more than the wrap that keeps rice together in sushi. Seaweed biomass is already used for a wide range of other products in food, including stabilising agents. Biorefineries with seaweed as feedstock are attracting worldwide interest and include low-volume, high valueadded products and vice versa. Scientific research on bioactive compounds in seaweed usually takes place on just a few species and compounds. This paper reviews worldwide research on bioactive compounds, mainly of nine genera or species of seaweed, which are also available in European temperate Atlantic waters, i.e. Laminaria sp., Fucus sp., Ascophyllum nodosum, Chondrus crispus, Porphyra sp., Ulva sp., Sargassum sp., Gracilaria sp. and Palmaria palmata. In addition, Undaria pinnatifida is included in this review as this is globally one of the most commonly produced, investigated and available species. Fewer examples of other species abundant worldwide have also been included. This review will supply fundamental information for biorefineries in Atlantic Europe using seaweed as feedstock. Preliminary selection of one or several candidate seaweed species will be possible based on the summary tables and previous research described in this review. This applies either to the choice of high valueadded bioactive products to be exploited in an available species or to the choice of seaweed species when a bioactive compound is desired. Data are presented in tables with species, effect and test organism (if present) with examples of uses to enhance comparisons. In addition, scientific experiments performed on seaweed used as animal feed are presented, and EU, US and Japanese legislation on functional foods is reviewed.

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Section: Heavy Metalsmentioning

confidence: 97%

Bioactive compounds in seaweed: functional food applications and legislation

Holdt

Kraan²

2011

J Appl Phycol

1,577

1,303

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“…Seasonal fluctuations in metal contents are described for many algal species (Shiber 1980;de Lacerda 1985;Sawidis and Voulgaropoulos 1986;R6nnberg et al 1990;Shimshock et al 1992;Miramand and Bentley 1992;Malea et al 1994) and are due to their biological cycle which in turn depends on external parameters such as temperature, light exposure, oxygen, pH, and the presence of natural organic complexing agents. Variations in pH may be effective in the first stage of uptake, In U. lactuca (Gutknecht 1963), increasing the pH from 7.3 to 8.6 promoted Zn 65 uptake and retarded Zn 65 loss.…”

Section: Seasonal Variabilitymentioning

confidence: 97%

Metal accumulation in a biological indicator (Ulva rigida) from the lagoon of Venice (Italy)

Favero

Cattalini

Bertaggia

et al. 1996

Arch. Environ. Contam. Toxicol.

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Ulva rigida (C. Agardht) was collected from the Palude della Rosa (lagoon of Venice), a particular area characterized by a salinity gradient, from December 1991 to June 1993. Metal contents (Al, Mn, Fe, Cu, Zn, Cr, Co, Ni, Cd, and Pb) were determined by atomic absorption spectrophotometry and statistically analysed for differences between months and sampling sites. The mean seasonal variability is very significant (p < 0.001) for all studied metals. Seasonal trends are comparable for groups of metals according to possible functional similarities. A significant positive correlation was calculated for the pairs Fe-Al and Fe-Pb. Mechanisms regulating metal uptake are discussed, particularly the role of Fe and its linear relationship with Al. Metal concentrations in relation to salinity also were studied. Larger amounts of Fe, Zn, and Cd accumulated in correspondence of lower salinity, may be owing to both higher metal activity and burden of bioavailable metals in freshwater flowing into the Palude. Calculation of concentration factor (CF) indicates that U. rigida specifically accumulates Fe. CF linearly correlates with dissolved metal concentrations, suggesting that U. rigida is a good bioindicator of metal bioavailability, although seasonal active accumulation occurs in some cases (Mn). Metal concentrations determined in this macroalga support the conclusion that the studied area is rich in bioavailable Fe and poor in toxic metals. In any case, a great affinity for Al in U. rigida may be proposed.

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“…In this case it is shown that integration with salmon did not influence the content of the trace metals studied beyond the bounds of naturally varying baseline metal concentrations (wild populations from pristine sites). However, between the two cultivated populations certain metals: Cu and Mn, previously associated with increased environmental presence surrounding fed aquaculture facilities (Dean et al, 2007;Ronnberg et al, 1990;Zhang et al, 2012) were found in relatively higher concentrations in the IMTA cultivated thalli ( Fig. 3b and c, Table 3b).…”

Section: Effect Of Co-cultivation With Finfishmentioning

confidence: 88%

“…Regarding the most longstanding temperate-water commercial IMTA farm (salmon-musselskelp), Troell et al (2009) report that over eight years levels of metals, including arsenic, in mussels and kelp have always been within Canadian, USA and European regulatory limits, but give no details as to the found levels. Ronnberg et al (1990) previously demonstrated seasonal increases in zinc, manganese, iron and copper in Fucus vesiculosis transplanted from a reference locality to a fish farm in the Baltic. Ascophyllum nodosum growing in the vicinity of salmon farms in Canada that used copper based anti-foulants on the net-pens showed copper concentrations that were within the reported range of thalli growing in uncontaminated water (Solberg et al, 2002).…”

Section: Effect Of Co-cultivation With Finfishmentioning

confidence: 96%