Heavy Metals in Marine Algae of the Kuwait Coast

Buo-Olayan, A.-H.; Subrahmanyam, M.N.V.

doi:10.1007/s001289900262

Cited by 27 publications

(11 citation statements)

References 12 publications

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“…The rest of the metals studied here were at lower or comparable levels than those reported for this genus (Agadi et al, 1978;Munda and Hudnik, 1991;Buo-Olayan and Subrahmanyam, 1996).…”

Section: Resultscontrasting

confidence: 54%

“…Maximum levels of Mn in Enteromorpha species found here were high compared with those reported in Hong Kong waters (Ho, 1987b), the Kuwait coast (Buo-Olayan) and Subrahmanyam, 1996) or the northern Adriatic (Munda and Hudnik, 1991), but similar to the levels from the Goa coast of India (Agadi et al, 1978). The maximum concentrations of Mn, particularly in the macroalgae of Yavaros lagoon, were more elevated than the levels reported for most Phaeophyceae (Fuge and James, 1973;Zingle et al, 1976;Burdon-James et al, 1982).…”

Section: Resultscontrasting

confidence: 45%

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Macroalgae as Biomonitors of Heavy Metal Availability in Coastal Lagoons from the Subtropical Pacific of Mexico

Osuna

Ochoa-Izaguirre

Bojórquez-Leyva

et al. 2000

Bull. Environ. Contam. Toxicol.

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Despite the fact that a relatively rich algal flora exists along the broad range of coastal environments in Mexico (Abbott and Hollenberg, 1976;Serviere-Zaragoza et al., 1993) their viability as biomonitors of trace metals has not been studied. Macroalgae have been known to concentrate heavy metals to levels several times those found in the surrounding waters. This is due to their accumulation of metals by active and passive processes responding essentially to metals present in solution (Bryan, 1969;Seeliger and Edwards, 1977;Leal et al., 1997).Spatial or temporal trends in contamination provided by data on metal levels in macroalgae may not correspond to those found in other biomonitor species such as mollusks and barnacles. Consequently a biomonitoring program of metal contamination is more complete when barnacles and bivalve results are considered together with macroalgae data. A project was initiated to establish levels of trace metals, pesticides and petroleum hydrocarbons in a range of marine organisms from the subtropical Pacific coast of Mexico. Attention was given to bivalves, barnacles and macroalgae, which are known to be among the most effective and widely used biomonitors of pollution (Rainbow and Phillips, 1993). In a previous work (Páez-Osuna et al., 1999) regional variations of heavy metal concentrations in tissues of barnacles from the subtropical Pacific coast of Mexico were determined and reported. This work reports on concentrations only of trace metals in the macroalgae and is the first study of its kind to be conducted in the area. MATERIALS AND METHODSThe study area includes twelve locations (Table 1). With the exception of Puerto Vallarta and Monteón Beach the rest are classified (Lankford, 1977) as coastal lagoons. These ecosystems constitute important fishery areas and play key roles as nursery grounds for commercially relevant species of shrimp and fish. In Table 1 is shown a summary of the main activities developed in each location and the associated drainage basin.About 0.5-1.0 kg of fresh algae were handpicked from the intertidal regions of the twelve different locations along the Pacific subtropical coast of Mexico (Table 1) in April 1996. Samples were stored in polyethylene bags and kept at 4°C during transport. In the laboratory, any epiphytes, sediments and adhering animals were removed with seawater for each collection site. The samples were then dried for 7

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“…The rest of the metals studied here were at lower or comparable levels than those reported for this genus (Agadi et al, 1978;Munda and Hudnik, 1991;Buo-Olayan and Subrahmanyam, 1996).…”

Section: Resultscontrasting

confidence: 54%

Section: Resultscontrasting

confidence: 45%

Macroalgae as Biomonitors of Heavy Metal Availability in Coastal Lagoons from the Subtropical Pacific of Mexico

Osuna

Ochoa-Izaguirre

Bojórquez-Leyva

et al. 2000

Bull. Environ. Contam. Toxicol.

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“…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. Therefore, caution should be used when comparing metals levels between distant areas with very different characteristics.…”

Section: Resultsmentioning

confidence: 99%

“…from this study (Pb, Ni, and V only) are compared here with other published results for the same genus, to determine if values of the present study belong to a zone free of contamination. Buo-Olayan and Subrahmanyam (1996) reported a mean concentration of 8.5, 7.1, 8.5 lg g -1 dry weight for Pb, V and Ni, respectively in E. intestinales and 6.5, 10, 9.1 lg g -1 dry weight for E. flexuosa from the Kuwait coast, an area considered contaminated due high levels of metals found in previous studies of sediments and water. The concentrations of Pb, V, and Ni (2.08, 3.94 and 2.67 lg g -1 dry weight, respectively) found in the present study were lower than those from the Kuwait coast; concentrations were approximately three times less for Pb and Ni, and nearly one half the value for V. Pb concentrations in Enteromorpha sp found in the present study (2.08 lg g -1 dry weight) were only slightly higher than the 1.81 lg g -1 dry weight reported for E. prolifera near the coast of the Adriatic Sea in Italy, which is an area considered free of contamination (Storelli et al 2001).…”

Section: Resultsmentioning

confidence: 99%

“…These species were chosen due to the fact they are widely used as bioindicators of metal contamination (Buo-Olayan and Subrahmanyam 1996;Brown et al 1999;Villares et al 2002). Besides their widespread distribution in the Strait's coastal areas, these species meet some additional criteria as ideal biomonitors including being sessile or sedentary and easy to sample.…”

mentioning

confidence: 99%

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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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Metal Pollution in Seaweed and Related Sediment of the Persian Gulf, Iran

Alahverdi

Savabieasfahani

2012

Bull Environ Contam Toxicol

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Nickel, cadmium, copper and lead in the sediment and seven species of algae from six locations in the Bushehr Province on the Coast of the Persian Gulf were determined. Sampling sites represent areas of importance in seaweed harvest and areas near sources of anthropogenic pollution. The mean concentrations of metals in the sediment (across all six collection sites, and collection periods) were: Pb (42.4 ± 2.7), Cd (7.4 ± 1), Ni (38.1 ± 3.7), and Cu (8.3 ± 1.2) μg g(-1) dry weight. High significant positive correlations existed between metals in cervicornis, corticata, and pavonica algae and the sediment, suggesting these species of algae are suitable for biomonitoring of the area.

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Heavy Metals in Marine Algae of the Kuwait Coast

Cited by 27 publications

References 12 publications

Macroalgae as Biomonitors of Heavy Metal Availability in Coastal Lagoons from the Subtropical Pacific of Mexico

Macroalgae as Biomonitors of Heavy Metal Availability in Coastal Lagoons from the Subtropical Pacific of Mexico

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

Metal Pollution in Seaweed and Related Sediment of the Persian Gulf, Iran

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