Oxygen consumption and filtering rate ofDaphnia pulex after exposure to water-soluble fractions of naphthalene, phenanthrene, No. 2 fuel oil, and coal-tar creosote

Geiger, James G.; Buikema, Arthur L.

doi:10.1007/bf01611096

Cited by 37 publications

(19 citation statements)

References 11 publications

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“…Rates of filtration of particles by zooplankton have been observed to decrease following exposure to various chemicals under laboratory conditions (Geiger and Buikema 1981 ; Kersting and Van der Honing 198 1; Bay and Kaushik, 1987). The treatment of enclosures with contaminants not only provides an ideal opportunity to observe changes in community structure but also the effects of a toxicant on in situ rates of filtration of zooplankton which have been rarely observed under natural conditions.…”

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confidence: 96%

Impact of Fenvalerate on Enclosed Freshwater Planktonic Communities and on in situ Rates of Filtration of Zooplankton

Day¹,

Kaushik²,

Solomon³

1987

Can. J. Fish. Aquat. Sci.

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1987. Impact of fenvalerate on enclosed freshwater planktonic communities and o n in situ rates of filtration of zooplankton. Can. I. Fish. Aquat. Sci. 44: 1714-1728.The treatment of large-volume (-125 m3) in situ lake enclosures with fenvalerate at realistic field levels of agricultural contamination by drift or overspray (0.44.0 g fenvalerateaha-') resulted in the disruption of the structure and function of the planktonic communities. The toxic effects ranged from short-term changes in the feeding behaviour of several species of zooplankton (Daphnia spp. and Ceriodaphnia hcustris) at 8.05pg fenvalerate-L-I t o a drastic reduction in the densities of most of the major groups of zooplankton at 0.1 p g fenvalerateel-' for periods of up t o 3 w k following treatment, In addition, indirea effects of toxicity were observed, e.g. populations of rotifers and phytoplankton increased in enclosures after the removal of the large-bodied dadocerans. This is thought to be the result of a reduction in competition and grazing, respectively. The emulsifying agents used in the emulsifiable concentrate formulation of fenvalerate were not found t o be toxic t o zooplankton at concentrations expected after agricultural use. The half-life of fenvalerate in an enclosure treated with a nominal concentration of 0.1 pg'k-' was estimated to be4.1 d by first-order readion kinetics.Le traiternent in situ de grands enclos lacustres d'environ 125 rn3 avec d u fenvalerate 3 des teneurs correspondant & une contamination agricofe par d6rives o u surpulverisations (0,4--4,0 g -ha-' d e fenvalerate) a entraine une perturbation de la structure et de la fonction des communaut4s planctoniques. kes incidences toxiques vont de variations a court terme du comportement alimentaire de diverses esp6ces de zooplancton (Daphnia sp. et Cerisdaphnia lacerstss's) a 0,05 pg-k-' de fenvalerate, a une chute marquee des densites de la plupart des principaux groupes zooplanctoniques 2 0,1 Fga~-' de fenvealerate, ceci pendant des periodes allant jusqu'a 3 sem apres la pulverisation. De plus, o n a observe des incidences indirectes de la toxicit$, notarnment une augmentation des effectifs des rotiferes et d u phytopiancton dans les enclos apres ladisparition des gros cladoceres. Ce phenomene sernble &re le resultat dfune diminution de la competition et du broutage, respectivement. Les agents 4rnulsifiants utilisesdans la preparation concentre 6mulsifiable de fenvalerate ne se sont pas reveles toxiques pour lemooplancton auxeoncentrations devant r6sulter d'une utilisation agricole. La demi-vie d u fenvalerate dans un enclos trait6 avec une concentration nominale de 0,1 p g -~-l se situe a 4,1 j (cin6tique d'une reaction d'ordre premier).

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confidence: 96%

Impact of Fenvalerate on Enclosed Freshwater Planktonic Communities and on in situ Rates of Filtration of Zooplankton

Day¹,

Kaushik²,

Solomon³

1987

Can. J. Fish. Aquat. Sci.

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“…Fundulus heteroclitus exposed to 4 mg/L naphthalene also exhibited elevated oxygen uptakes rates [29]. However, using Daphniapulex, Geiger and Buikema [30] reported that 0.3 and 0.6 mg/L naphthalene depressed oxygen uptake by 30 and 3470, respectively. The inhibition of Tanytarsus oxygen uptake is comparable to that of Daphnia magna, with a 25% decrease at 8 mg/L [ 161, and of cultured Vero cells, with a 50% inhibition by 15 mglL naphthalene [31].…”

Section: Resultsmentioning

confidence: 98%

The Effect of Naphthalene on Oxygen Consumption and Hemoglobin Concentration in Chironomus Attenuatus and on Oxygen Consumption and Life Cycle of Tanytarsus Dissimilis

Darville¹,

Wilhm²

1984

Environ Toxicol Chem

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The effects of naphthalene on the physiology and life cycle of two species of benthic macroinvertebrates, Chironomus attenuatus and Tanytarsus dissimilis (Diptera: Chironomidae), were determined. The acute effects measured were survival, oxygen consumption, hemoglobin concentration and total body glycogen content. A flow-through system was used to determine chronic effects on life cycle and reproduction parameters.Both species had LCs0 values of approximately 13 mglL. After exposure to naphthalene for 1 h, the oxygen consumption of both species decreased. Tanytarsus was more sensitive than Chironomus, which is consistent with the life histories of the two species. The decrease in oxygen uptake was due to inhibition of the electron transport chain or interference with functioning of the nervous system.Hemoglobin concentrations in Chironomus were not good indicators of naphthalene stress.Although hemoglobin in Chironomus decreased after 4 h of exposure, the decrease was not significant. The decrease could not be accounted for by alteration of hemoglobin structure or by inhibition of synthesis. Life cycle exposures at naphthalene concentrations of less than 0.5 mglL resulted in minimal effects. Egg hatching and adult emergence were the best indicators of chronic exposure. Pupation times and numbers of eggs were not significantly changed.

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“…plicatilis was reduced by approximately 50 % after a 24 hour exposure to 1 mg 1 -1 of the halogen toxicants : free chlorine and chloramine . The effects of xenobiotics on the filtration rates of other zooplankters have been investigated by several workers (Cooley, 1977 ;Geiger & Buikema, 1981 ;Kersting & van der Honing, 1981 ;Flickinger et al, 1982 ;Day & Kaushik, 1987).…”

Section: Discussionmentioning

confidence: 99%

Ecotoxicological studies with the freshwater rotifer Brachionus calyciflorus

Janssen

Rodrigo²,

Persoone

1993

Hydrobiologia

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The use of the freshwater rotifer Brachionus calyciflorus as a test organism for ecotoxicological studies was examined . Changes in the feeding-, swimming behavior-and demographic characteristics of the rotifers exposed to increasing concentrations of copper (Cu) were studied and the relationships between the different test parameters and their ecological relevance evaluated .Relatively simple short-term bioassay methods were developed to measure the swimming activity (2 hours) and the filtration (5 hours) rate . Life-table experiments were performed to asses the long-term effects of Cu on the rotifers . Significant reductions in the filtration rate, the swimming activity and the demographic parameter r were observed at 20, 12 and 5 ig 1 -1 of Cu, respectively. The implications and the possible ecotoxicological applications of the results are discussed . 21

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Oxygen consumption and filtering rate ofDaphnia pulex after exposure to water-soluble fractions of naphthalene, phenanthrene, No. 2 fuel oil, and coal-tar creosote

Cited by 37 publications

References 11 publications

Impact of Fenvalerate on Enclosed Freshwater Planktonic Communities and on in situ Rates of Filtration of Zooplankton

Impact of Fenvalerate on Enclosed Freshwater Planktonic Communities and on in situ Rates of Filtration of Zooplankton

The Effect of Naphthalene on Oxygen Consumption and Hemoglobin Concentration in Chironomus Attenuatus and on Oxygen Consumption and Life Cycle of Tanytarsus Dissimilis

Ecotoxicological studies with the freshwater rotifer Brachionus calyciflorus

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