An assessment of the pollution of cornish coastal waters

Bradfield, R E.N.; Kingsbury, Ralph W.; Rees, Cassandra

doi:10.1016/0025-326x(76)90039-4

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…Some studies have indicated that a proportional relationship might exist between metal levels in algae and levels in the surrounding seawater (Boyden, 1975 ;Bradfield et al, 1976 ;Seeliger & Edwards, 1977) . However, it should be kept in mind that the water sampled in the present study was taken right from the shore where the chances of frequent variation in elemental concentrations are considered to be rather high .…”

Section: Discussionmentioning

confidence: 99%

“…In comparison to levels found in another green alga, Ulva lactuca (Linnaeus), taken from the approximate same locations in July and August, 1975(Shiber & Washburn, 1978, the copper and iron concentrations in H. tuna were much higher, and lead was also higher Colpomenia sinuosa seemed to concentrate rather high levels of lead compared to levels found in other species of brown algae from various parts of the world (Black & Mitchell, 1952;Stenner & Nickless, 1975 ;Bradfield et al, 1976 ;Seeliger & Edwards, 1977). Cadmium in this alga was either slightly lower than some reported levels for other species (Nickless et al, 1972 ;Stenner &Nickless, 1975 ;Bradfield et al, 1976), or within a similar range (Dutton et al, 1973 ;Leatherland & Burton, 1974;Lande, 1977 ;Bryan & Hummerstone, 1977), whereas copper, nickel and especially iron appeared to be relatively high (Black & Mitchell, 1952 ;Preston et al, 1972 ;Dutton et al, 1973 ;Bradfield et al, 1976 ;Bryan & Hummerstone, 1977) . The non-detectable (n .d .)…”

Section: Collection and Analysismentioning

confidence: 99%

“…Several species of algae, such as Laminaria saccharina (Burrows & Pybus, 1971), Fucus vesiculosus (Bryan & Hummerstone, 1973;Bradfield et al, 1976), Ulva lactuca (Fletcher, 1974 ;Boyden, 1975), and Porphyra umbilicalis (Dutton et al ., 1973), have been regarded as potential indicators of coastal metal pollution . The suggestion that selection' occurs among algal species in polluted waters (Burrows & Pybus, 1971) has been supported by the numerous reports of decreased species diversity in areas of increased water contamination (Moss & Franklin, 1969 ;Edwards, 1972a;Bryan & Hummerstone, 1973 ;Wilkinson et al, 1976) .…”

Section: Introductionmentioning

confidence: 99%

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Certain metals in three coastal algae from Ras Beirut waters

Shiber

Shatila

1979

Hydrobiologia

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Section: Discussionmentioning

confidence: 99%

Section: Collection and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Certain metals in three coastal algae from Ras Beirut waters

Shiber

Shatila

1979

Hydrobiologia

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“…Trace metal concentrations in algae have been reported to be proportionate to levels in the surrounding seawater (Bradfield et al 1976 ;Morris & Bale, 1975) . Absorption exchange seems to play 1 9 1 an important role in the movement of certain metals in algae, such as zinc (Gutknecht, 1963) .…”

Section: Discussionmentioning

confidence: 99%

Metal concentrations in certain coastal organisms from Beirut

Shiber¹

1981

Hydrobiologia

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Trace metal concentrations were determined in six species of intertidal organisms common to the coast of Ras Beirut, Lebanon . Lead, cadmium, nickel, iron, and zinc were highest in the polychaete, Hermodice carunculata, but the eggs of the sea urchin, Arbacia lixula, had similar iron levels and the sea anemone, Actinia equina, had zinc concentrations which also approached levels in the polychaete . The highest copper occurred in the shore crab, Pachygrapsus transversus, while chromium was highest in the eggs of Arbacia lixula . Cystoseira spinosa, the only alga studied, had average copper and iron concentrations similar to those found in the same species in another study . Together with the sea urchin eggs, C. spinosa exhibited the most variable zinc levels in the present investigation . The fish, Thalassoma pavo, which is rather common along the rocky coastal areas of Lebanon, appeared to have fairly high concentrations of certain elements in relation to levels reported in species of fish from other locations .Sewage, garbage, industrial and agricultural waste materials all enter the Mediterranean from Lebanon without prior treatment, which along with increased land erosion, probably contribute substantially to the availability of metals to the biota studied . It is suggested that more work on trace elements in coastal organisms from the eastern Mediterranean basin be undertaken before any conclusive statements are made . Such work should also investigate the various physiological and biochemical factors involved in metal uptake and retention by each species .

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“…Several studies have shown that metal concentrations in algae might be proportionate to the concentration of metals in the surrounding media (Boyden, 1975 ;Bradfield et al, 1976 ;Seeliger & Edwards, 1977) . Most benthic marine algae can be found in coastal waters and Dutton et al (1973) observed that the highest concentrations of dissolved metals appear to occur in coastal waters .…”

Section: Introductionmentioning

confidence: 99%

Lead, mercury, and certain nutrient elements in ulva lactuca (linnaeus) from Ras Beirut, Lebanon

Shiber

Washburn

1978

Hydrobiologia

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Collections of Ulva lactuca (Linnaeus) at nine locations along the coast of Ras Beirut, Lebanon were analysed for lead, mercury, phosphate, calcium, magnesium, iron, copper, and zinc . Low lead concentrations, the same in all samples, could possibly indicate that U. lactuca has some means by which lead uptake and toxicity can be controlled . Phosphate levels may be a contributing factor to this process .Concentrations of all other elements seemed relatively uniform with few exceptions. This suggests that U. lactuca is subject to similar environmental conditions and element exposure at each of the collecting sites and might be capable of maintaining biochemical stability under high levels of stress .Further studies of toxic and nutrient elements as to their individual and combined effects in U. lactuca are needed .

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An assessment of the pollution of cornish coastal waters

Cited by 7 publications

References 10 publications

Certain metals in three coastal algae from Ras Beirut waters

Certain metals in three coastal algae from Ras Beirut waters

Metal concentrations in certain coastal organisms from Beirut

Lead, mercury, and certain nutrient elements in ulva lactuca (linnaeus) from Ras Beirut, Lebanon

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