The levels of some heavy metals and chlorinated hydrocarbons in fish from the tidal thames

Rickard, Darcel; Dulley, M.E.R.

doi:10.1016/0143-148x(83)90040-x

Cited by 30 publications

(2 citation statements)

References 14 publications

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“…Grays is situated in an industrialized area about 8 km upstream from Tilbury, which requires regular dredging to clear the shipping lanes due to sediment deposition (22). PCB contamination has been detected in the livers of Dover sole caught in the vicinity of Tilbury, which is a nursery area for the young fish (10).…”

Section: Discussionmentioning

confidence: 99%

Organochlorine Contamination in Sediments of the Inner Thames Estuary

Scrimshaw

Lester

1995

Water & Environment J

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The saltmarsh at Two Tree Island, situated in the Thames estuary, has previously been identified as exhibiting a relatively enhanced degree of contamination with respect to organochlorine insecticides and polychlorinated biphenyls. This survey of sediment samples from mud flats on the north bank of the River Thames, creeks surrounding Canvey Island and from Two Tree Island, indicated that contamination with organochlorine and polychlorinated biphenyls was ubiquitous throughout the inner Thames estuary. Values observed were in agreement with those in other European estuaries, and the degree of contamination at Two Tree Island was considered to reflect the local background. The outfall from Benfleet sewagetreatment works was identified as a possible source of contaminants: however, no other point sources were located. Samples of annelids taken from mud flats by Two Tree Island had accumulated penta-and hexachlorinated biphenyls to a greater degree than lower chlorinated cogeners, and demonstrated signs of an ability to metabolize DDT.

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Section: Discussionmentioning

confidence: 99%

Organochlorine Contamination in Sediments of the Inner Thames Estuary

Scrimshaw

Lester

1995

Water & Environment J

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“…In eels from the water supply reservoirs (Îelivka reservoir, in particular) mercury concentrations ranged from 0.506 to 2.40 in muscle, and from 0.286 to 5.76 in liver. Mason (1987) recorded the mercury concentration in the range 0.09 -0.66 mg kg -1 in eel flesh from East Anglia Sites, Richards and Dulley (1983) in the range of 0.07 -0.68 in eels from tidal Thames. According to Barak and Mason (1990) in the liver and muscle of eels the concentrations of the mercury varied between 0.02 -0.38 and 0.09 -0.83, respectively, in fish from the Rivers Brett and Chelmer in eastern England.…”

Section: Discussionmentioning

confidence: 99%

Mercury Content in Anguillicola crassus (Nematoda) and its Host Anguilla anguilla

Palíková¹,

Baruš²

2003

Acta Vet. Brno

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Palíková M., V. Baru‰: Mercury Content in Anguillicola crassus (Nematoda) and its Host Anguilla anguilla. Acta Vet. Brno 2003, 72: 289-294. Mercury content in parasite-host system (Anguillicola crassus and Anguilla anguilla) was studied in the Koryãany Reservoir (Czech Republic). The swimbladder nematode contained the lowest mercury levels (0.050 -0.183mg kg -1 wet weight), (p < 0.05), compared to muscles (0.162 -0.827) and the liver (0.175 -1.430) of the fish definitive host. The mercury concentrations in the definitive host were higher in the liver, but not significantly different from muscle concentrations. Regression analysis indicated a positive ratio between mercury concentrations in the liver and the total body length of the fish. In eels from the reservoir under study the mercury content in fish muscles exceeded the hygienic limit in one fish specimen only. Muscle, liver, parasite-host system

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