The acute and chronic effects of cadmium on the estuarine mysid,Mysidopsis bahia

Nimmo, Del Wayne R.; Rigby, R. A.; Bahner, Lowell H.; Sheppard, James M.

doi:10.1007/bf01685770

Cited by 38 publications

(13 citation statements)

References 6 publications

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“…With cadmium, we found increased mortality and delay in reproduction to be important chronic effects (Nimmo et al 1978a). Subsequent testing with pesticides suggested that other criteria were also reliable.…”

Section: Results Of Chronic Testsmentioning

confidence: 99%

“…Life cycle tests using a species of palaemonid shrimp, Palaemonetes pugio, had been completed successfully (Tyler-Schroeder 1977) but the test was lengthy due to the life history of the shrimp. In the late 1970s we reported the successful use of M. bahia in life cycle studies using a variety of toxicants, perhaps the most notable being Kepone (Nimmo et al 1977(Nimmo et al , 1978a(Nimmo et al , 1980. At the time of our initial research little was known of the biology or ecology of this crustacean; the only publication of any scientific consequence was the original species description of M. bahia (Molenock 1969).…”

Section: Introductionmentioning

confidence: 99%

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Mysids in toxicity testing ? a review

Nimmo¹,

Hamaker²

1982

Hydrobiologia

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The use of mysid shrimp, particularly the genus Mysidopsis, along with specific testing procedures, has become accepted in aquatic toxicology. Investigators have developed methodologies for both culture and testing of these organisms. Acute and chronic (life cycle) toxicity tests in addition to dredge spoil and effluent tests with mysids are now becoming common. Attempts have been made to use mysids as test organisms in behavioral, physiological, nutritional, and food-chain studies. In general, Mysidopsis spp. have been shown to be as sensitive or more sensitive to toxic substances than other marine species tested. The ease of handling and culture, relative sensitivity to toxicants, short life cycle, small size and direct larval development make these organisms desirable for research purposes. Continued research using mysid species will probably demonstrate even greater usefulness of these organisms in assessment of pollutant impacts on estuarine or marine communities.

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Section: Results Of Chronic Testsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mysids in toxicity testing ? a review

Nimmo¹,

Hamaker²

1982

Hydrobiologia

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“…Experiments employing high (ppm levels) cadmium concentrations (Eisler, 1971;v. Westernhagen et al, 1975) have been supplemented with long-term experiments at low levels (ppb) of cadmium (Greig et al, 1974;Dawson et al, 1977;Mac Innes et al, 1977; see also National Oceanic and Atmospheric Administration, 1974) and bioassays in which experimental animals were allowed to complete a full life cycle in contaminated flow-through systems (Nimmo et al, 1978).…”

Section: Introductionmentioning

confidence: 99%

Fate and effects of cadmium in an experimental marine ecosystem

Westernhagen

Dethlefsen²,

Rosenthal

et al. 1978

Helgolander Wiss. Meeresunters

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Two recirculated marine seawater systems (capacities: 150 and 300 1) were used for the study on cadmium accumulation of biological filter sludge, by the mussel Mytilus edulis and the plaice Pleuronectes platessa for a period of up to 300 days. In the contaminated system Cd concentrations varied from 2.5 to 7.0 #g/1 with a mean of 4.6 + 1.15 #g/1 (control: 1.04 + 0.46 #g/l). Accumulation of Cd by the filter sludge from the control system as well as from the contaminated system was significant. Mean concentrations of control and contaminated sludge over the experimental period were 2.01+0.86 ng Cd/mg dry wt and 9.98+3.55 ng Cd/mg dry wt respectively. Accumulation of Cd by M. edulis both in the control and in the contaminated system was considerable. After 163 days of exposure the whole body burden of mussels rose from 0.3 ng Cd/mg dry wt to around 10 ng Cd/mg dry wt in the controls and to 70 ng Cd/mg dry wt in the contaminated systems. Accumulation of Cd by P. platessa was analysed in backbone, fins, gills, liver, muscle (fillet), otolith and skin (dorsal and ventral) over a period of 280 days. Elevated Cd contents of livers from control specimens were noticed after 200 days and reached 1.75 ng Cd/mg dry wt in liver. There was considerable accumulation in the liver (maximum values: 3.0 ng Cd/mg dry wt) and gills (6.0 ng Cd,'mg dry wt) of specimens from the contaminated system, Cd contents of plaice exposed for identical periods of time were very variable. Growth of plaice living in the contaminated system was at times significantly slower than that of the control group. Of the three biological objects tested -filter sludge, M. edulis, P. platessa -the mussel seemed to be the most sensitive indicator of elevated Cd-concentrations, while the reaction of the plaice was slow and less distinct.

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“…Table 4 lists values for other species obtained for periods of time comparable to those used with L. loveni. Further data for acute toxicity of Cd to marine animals have been presented by Eisler (1971), O'Hara (1973), Ahsanullah (1976), Negilsh (1976, Ahsanullah and Arnott (1978), Nimmo et al (1978), Schreck and Lorz (1978) (1978). Differences in Cd tolerance of different species may be related to their permeabilities and rates of heavy-metal accumulation as well as to different sensitivities of their enzyme systems (Vallee and Ulmer, 1972).…”

Section: Discussionmentioning

confidence: 99%

Temperature and Salinity Effects on the Acute Toxicity of Cadmium to Laomedea loveni (Hydrozoa)

Theede¹,

Scholz²,

Fischer³

1979

Mar. Ecol. Prog. Ser.

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The hydroid polyp Laomedea loveni Allm. responds to very low cadmium concentrations in sea water (pg Cd 1-lrange). The acute toxicity of Cd is strongly modified by abiotic factors. At low temperatures and high salinities L. loveni is more tolerant to Cd contamination than at the reverse temperature-salinity combinations. The Cd concentration causing irreversible retraction of 50°/a of the hydranths after a ?-day exposure of polyp colonies (7d EDSo) varies from 3pg1-' (at 17.5 'C and 10"/m S) to 80pgl-' (at 7.5 'C and 25O/uo S). The accumulation of Cd increases at higher temperatures.

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The acute and chronic effects of cadmium on the estuarine mysid,Mysidopsis bahia

Cited by 38 publications

References 6 publications

Mysids in toxicity testing ? a review

Mysids in toxicity testing ? a review

Fate and effects of cadmium in an experimental marine ecosystem

Temperature and Salinity Effects on the Acute Toxicity of Cadmium to Laomedea loveni (Hydrozoa)

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