Seaweeds in the assessment of heavy metal pollution in the Gulf San Jorge, Argentina

Muse, J.O.; Stripeikis, Jorge; Fernández, Facundo M.; d'Huicque, L.; Tudino, Mabel Beatríz; Carducci, C. N.; Troccoli, Osvaldo E.

doi:10.1016/s0269-7491(98)00096-7

Cited by 50 publications

(21 citation statements)

References 47 publications

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“…The protein content of G. cliftonii in culture conditions was higher than the natural population indicating nitrogen assimilation by seaweeds under changed ionic concentrations and ionic stress does occur (Aderhold et al 1996;Muse et al 1999;Davis et al 2000;Caliceti et al 2002) but may also be related to greater availability of nitrogen and phosphorus under laboratory conditions. Similarly, the strong inverse correlation of ash content to carbohydrate and protein at different salinities can be attributed to the different ionic concentrations in the culture environment.…”

Section: Chemical Compositionmentioning

confidence: 99%

Effect of inland saline water ionic profiles on growth, chemical composition and agar characteristics of Gracilaria cliftonii (Withell, Miller and Kraft 1994) under laboratory conditions

2009

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Increase in salinity of inland water sources is adversely affecting aquatic and terrestrial ecosystems around the world including Australia. Inland saline water (ISW) with similar ionic profile to ocean water has potential for culturing marine species. Gracilaria species are commercially important as they are a source of agar. One of the native species Gracilaria cliftonii has been reported for high agar yield of 52%dw. The aim of this research was to investigate the feasibility of culturing G. cliftonii in different ionic profiles of ISW under laboratory conditions. The growth rate of G. cliftonii under different ionic profiles ranged from 0.9 to 2.5 %day -1 . Gracilaria cliftonii carbohydrate content decreased while protein content increased in culture conditions when compared to natural populations. Agar yield, gel strength and melting point decreased while gelling temperature and sulphate content increased in culture conditions when compared to natural populations. Strong correlation (R 2 [ 0.8, P \ 0.05) was observed between K ? , Na ? , Ca 2? , and Mg 2? content in tissue and water indicating ionic regulation by G. cliftonii. This research provides basic information and presents supportive arguments for G. cliftonii as a potential species for inland saline water aquaculture.

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Section: Chemical Compositionmentioning

confidence: 99%

Effect of inland saline water ionic profiles on growth, chemical composition and agar characteristics of Gracilaria cliftonii (Withell, Miller and Kraft 1994) under laboratory conditions

2009

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“…Marine macroalgae have been widely used as biomonitors of metal pollution (Phillips 1997;Levine 1984;Topcuoglu et al 2003) because they have the ability to accumulate high levels of various metals in their cell wall (Burdin and Bird 1994;Salgado et al 2005) as well as tolerate high metal concentrations (Bryan 1983;Wekwe et al 1989;Ferletta et al 1996;Filho et al 1999;Ho 1990;Muse et al 1999). Several authors have been studied metal concentrations in algal species collected from various coastline areas and metals effects on algal growth, their biochemical and physiological properties, as well as their accumulation (Leland et al 1974(Leland et al , 1979Seeliger and Edwards 1979;Markham et al 1980;Sawidis and Voulgaropoulos 1986;Guven et al 1992Guven et al , 1993Guven et al , 1998Hardisson et al 1998;Esen et al 1999;Fityanos et al 1999;Kut et al 2000;Sawidis et al 2001;Stengel et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Short-term influence of phosphate and nitrate on heavy metal accumulation by red alga Acrosorium uncinatum

Sivakumar

Song

Park

et al. 2009

Environ Monit Assess

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Heavy metal accumulation (Cu, Zn, Ni, and Pb) in common marine macroalga, Acrosorium uncinatum under nutrient (phosphate and nitrate) enriched (experiment 1) and starved (experiment 2) conditions over a short exposure period (12 h) were examined in this study. Control was maintained in seawater contained nutrient solution without addition of metals and in seawater alone for experiment 1 and 2, respectively. Among the four metals studied, the accumulation of Zn, Ni, and Pb was considerably lower than Cu. The accumulation factor for all metals varies greatly in different nutrient concentrations, but it increases as the exposure of metal concentration decreases in both the experiments. The results of the present findings established that this macroalga is an accumulator of metals Cu, Zn, Ni, and Pb and have the potential to accumulate these metals even in a short time exposure period (12 h). Even though metal accumulation by A. uncinatum largely depends on the available concentration in the medium, nutrients like phosphate and nitrate can affect the accumulation significantly.

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“…Different species of algae of the genera Enteromorpha have been used as bioindicators of contamination in different parts of the world (BuoOlayan and Subrahmanyam 1996; Brown et al 1999;Villares et al 2002). Other studies using Ulva lactuca, Enteromorpha prolifera and Porphyra columbina as bioindicators had been done by Muse et al (1999) in the Gulf San Jorge, Argentina, to investigate a digestion method of metals using a microwave for the determination of Zn, Cu, Cr, Pb and Cd. According to several authors (Villares et al 2002;Buo-Olayan and Subrahmanyam 1996), levels of metals in macroalgae vary depending on several environmental factors such as salinity, nutrients, pH, age of the plant, season of sampling and analytical methods used for the quantification.…”

Section: Resultsmentioning

confidence: 99%

Baseline Concentrations of Trace Metals in Macroalgae from the Strait of Magellan, Chile

Astorga-España

Calisto-Ulloa

Guerrero

2007

Bull Environ Contam Toxicol

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Samples of four different species of seaweed were collected monthly between October 2000 and March 2001 from the coast of the Strait of Magellan, Chile to establish baseline levels of trace metals (silver, total mercury, nickel, lead, antimony, vanadium and zinc) and to compare the accumulation capacity among species. The algae included in the study were Adenocystis utricularis (n=15); Enteromorpha sp. (n=11), Mazzaella laminarioides (n=12) and Porphyra columbina (n=6). The concentration range of each metal in microg g(-1) dry weight varied as follows: Ag=ND-0.3, Hg=ND-0.02, Ni=ND-12.6, Pb = ND-11.2, Sb=ND-1.97, V=ND-11.34 and Zn=14.10-79. Results showed that levels of Ag, Hg, Ni, Pb, Sb, V and Zn for all species were similar to those found in other studies for non-contaminated areas with very little influence from anthropogenic activity. Also among the four species studied macroalgae Enteromorpha sp. had the highest capacity for metal accumulation and could therefore be considered as a biomonitor for future studies in the area.

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Seaweeds in the assessment of heavy metal pollution in the Gulf San Jorge, Argentina

Cited by 50 publications

References 47 publications

Effect of inland saline water ionic profiles on growth, chemical composition and agar characteristics of Gracilaria cliftonii (Withell, Miller and Kraft 1994) under laboratory conditions

Effect of inland saline water ionic profiles on growth, chemical composition and agar characteristics of Gracilaria cliftonii (Withell, Miller and Kraft 1994) under laboratory conditions

Short-term influence of phosphate and nitrate on heavy metal accumulation by red alga Acrosorium uncinatum

Baseline Concentrations of Trace Metals in Macroalgae from the Strait of Magellan, Chile

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