Uptake of cadmium, zinc, copper, lead and chromium in the pacific oyster. Crassostrea gigas. Grown in the tamar river. Tasmania

Ayling, G.M.

doi:10.1016/0043-1354(74)90017-7

Cited by 77 publications

(30 citation statements)

References 4 publications

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“…For example, in situ cage experiment performed under tropical field conditions showed that the bioconcentration factors of two kinds of oysters (Crassastrea iredalei and C. Belcheri) were 2.9 × 10 5 for Zn, 8.0-8.1 × 10 3 for Cu, 2.6-4.1 × 10 3 for Cd, 0.9-1.8 × 10 3 for Pb [38], indicating the high accumulation ability of heavy metal in oyster. The contents of Cu and Zn in the oysters were 1700 and 14,000 ppm from Tasmania, 1413 and 8629 ppm from Hong Kong [39]. High level of Cu (5000 ppm) was also found in the green oyster in Siensan Area, Taiwan [40].…”

Section: Bivalve Mollusksmentioning

confidence: 88%

Biomonitoring: An appealing tool for assessment of metal pollution in the aquatic ecosystem

Zhou

Zhang

et al. 2008

Analytica Chimica Acta

756

348

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Section: Bivalve Mollusksmentioning

confidence: 88%

Biomonitoring: An appealing tool for assessment of metal pollution in the aquatic ecosystem

Zhou

Zhang

et al. 2008

Analytica Chimica Acta

756

348

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“…Extreme values of up to 130 pprn Cd (dry weight) were found in molluscs, especially in Crassostrea gigas from Tasmanian waters (Ayling, 1974) and Mytilus edulis from the Bristol Channel, U. K. (Nickless et al, 1972), where background contamination in sediments amounted to up to 6 pprn Cd (dry weight). Comparatively low accumulation, on the other hand, was found in the sediment-living polychaete Nereis diversicolor from south-west England by Bryan and Hummerstone (1973), who recorded up to 9 pprn Cd (dry weight) in sediments and only 3.6 pprn Cd (dry weight) in the worms.…”

Section: Discussionmentioning

confidence: 99%

Uptake and Accumulation of Cadmium by Ophryotrocha diadema (Polychaeta)

Klöckner¹

1979

Mar. Ecol. Prog. Ser.

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Cadmium uptake by the deposit-feeding polychaete Ophryotrocha diadema is a non-linear process related to exposure time and metal concentration in the ambient seawater (20°C; 31 OjmS). Maximum body loads of 1700ppm Cd were found in adult worms (up to 0.1 mg dry weight) after 64-day exposure to 1OOOppb Cd. Distinct saturation of absorption was not reached d u r~n g this time. Accumulation factors decreased exponentially with increasing contamination levels. Accumulation factors were 7900 to 1700, calculated on a dry weight basis, corresponding to 3400 to 660 estimated on a theoretical volume basis of single worms in levels of 10 to lOOOppb Cd. Cd content of 62-to 116-day-old worms of three consecutive generations subjected to permanent contanl~nat~on did not increase from the P-to the F,-generat~on. A linear correlation exists between Cd absorption of newly deposited egg masses and experimental Cd concentrations. Cd loads of egg masses were extremely low (12 to 280ppm Cd dry weight in 50 to lOOOppb Cd contamination) compared with parental organisms. Cd content of the egg masses also did not increase within consecutive generations. It is, therefore, assumed that parentally accumulated Cd loads are not transferred to the offspring. Contamination of egg masses probably occurred after spawning, due to sorption of the metal by the mucoid layer encapsulating the eggs, since similar results were noted for Cd sorption by food part~cles (fragmented spinach).

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“…Whilst such estimates obviously depend on the exact area of sampling within each estuary, they are nevertheless indicative of a tendency to greater mineralisation of the Restronguet Creek catchment compared to the Helford Estuary. Crassostrea gigas would be expected to respond to this difference by the uptake of differing amounts of elements from water and sediments in the two locations (Ayling, 1974;Boyden and Romeril, 1974;Phillips, 197? ), and comparison of Figures 1-4 shows this to be the case.…”

Section: Seasonal Studiesmentioning

confidence: 99%

Seasonal Variation and Inherent Variability of Trace Elements in Oysters and Their lmplications for Indicator Studies

Phillips¹

1981

Mar. Ecol. Prog. Ser.

106

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The seasonal variation in concentrations and body burdens of 8 trace elements in the Pacific oyster Crassostrea gigas Thunberg was investigated, using individuals transplanted from Menai Strait in Wales to 2 Cornish estuaries. Seven of the 8 elements exhibited generally similar profiles for concentration, maxima occurring in winter and minima in summer. Some differences were noted in profiles for body burdens of these elements, depending on the loss of metals with gametes at spawning or on the rate of element uptake during autumn and winter. However, in each case, seasonal variation in concentration of the element was defined largely by changes in the weights of the whole soft parts of oysters, which in turn were dependent on the gametogenesis-spawning cycle. The 8th element, manganese, exhibited quite different kinetics; tissue weights of the oysters were of much less importance in defining seasonality of this metal. These data are compared to those of other authors in attempts to produce general conclusions on the seasonality of trace elements in blvalve molluscs. The inherent variability of zinc levels in three populations of two species of oyster, C. gigas and Ostrea edulis (L.), was also investigated to estimate the minimum number of individuals required to characterise element levels in a n oyster population. The possible reasons for the existence of inherent variability of element concentrations in bivalves are discussed, and the implications of both inherent variability and seasonallty of elements are considered with respect to monitoring studies using bivalves as biological indicators of metal abundance.

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Uptake of cadmium, zinc, copper, lead and chromium in the pacific oyster. Crassostrea gigas. Grown in the tamar river. Tasmania

Cited by 77 publications

References 4 publications

Biomonitoring: An appealing tool for assessment of metal pollution in the aquatic ecosystem

Biomonitoring: An appealing tool for assessment of metal pollution in the aquatic ecosystem

Uptake and Accumulation of Cadmium by Ophryotrocha diadema (Polychaeta)

Seasonal Variation and Inherent Variability of Trace Elements in Oysters and Their lmplications for Indicator Studies

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