one publication added to basket [11112] | Mercury concentrations in plaice, flounder and dab from Belgian continental shelf waters (1971-1990)
Guns, M.; Vyncke, W.; De Clerck, R. (1992). Mercury concentrations in plaice, flounder and dab from Belgian continental shelf waters (1971-1990). Landbouwtijdschrift 45(5): 959-964 In: Landbouwtijdschrift = Revue de l'Agriculture. Ministerie van Landbouw: Brussel. ISSN 0776-2143, more | |
Keyword | | Author keywords | MERCURY; PLAICE; FLOUNDER; DAB; NORTH SEA |
Authors | | Top | - Guns, M.
- Vyncke, W., more
- De Clerck, R., more
| | |
Abstract | Results obtained during a survey of 20 years on plaice (Pleuronectes platessa) and 15 years on flounder (Platichthys flesus) and dab (Limanda limanda) are reported. With flounder, two periods could be distinguished. In 1975-1981, higher mercury concentrations (0.38 mg/kg on average) with rather large variations were noted. From 1982 on, concentrations fluctuated around the same mean value (0.23 mg/kg). A gradual decrease of mercury levels in plaice was observed during the twenty years' monitoring period. The mean concentration in 1990 (0.06 mg/kg) was only one third of that of 1971 (0.18 mg/kg). In contrast with flounder and plaice, mercury concentrations in dab remained practically at the same level (0.09-0.13 mg/kg). |
|