Effects of the insect growth regulator Dimilin® (TH 6040) on larval development of two estuarine crabs

Christiansen, Marit E.; Costlow, John D.; Monroe, R. J.

doi:10.1007/bf00390539

Cited by 40 publications

(22 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The abnormalities of the nauplii produced by Dimilin treated copepods were similar to those reported by Christiansen et al (1978) for crab larvae exposed to Dimilin. Mulder and Gijswijt (1973) suggest increased internal body pressure and/or deterioration of the mechanical properties of the cuticle was responsible for the balloon-like distortion of insect larvae they observed from Dimilin treated adults.…”

Section: Discussionsupporting

confidence: 85%

“…With few exceptions (Cunningham, 1976;Christiansen et al, 1978) the studies on the effects of Dimilin on non-target organisms deal with lethal concentrations to adults. Necessarily, the comparisons of our results on sublethal effects of Dimilin on Acartia tonsa draw heavily from the literature on the effect of Dimilin exposure on various insect species.…”

Section: Discussionmentioning

confidence: 99%

“…At the end of 5 d the number of live copepods was recorded. Since even the highest concentration of Dimilin (1000 ppb) we tested was found to be sublethal to adult Acartia tonsa, w e elected to work, for the most part, with 1 and 10 ppb because previous studies indicated these concentrations were effective against crustacean larvae (Christiansen et al, 1978) and larvae of the black salt-marsh mosquito (Aedes taeniorhynichu) (Thompson-Hayward Chemical Company, 1974).…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Insect Growth Regulator Dimilin® (TH 6040) on Fecundity and Egg Viability of the Marine Copepod Acartia tonsa

Tester¹,

Costlow²

1981

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Studies of adult LD,, concentrations of Dimilin, an insect growth regulator which acts to inhibit chitin synthesis, are misleading when applied to arthropods which experience a terminal molt. The calanoid copepod Acartia tonsa Dana has a determinate number of molts after which no growth occurs and the necessity of chitin production is restricted. Survival of adult A. tonsa held for 5 d in concentrations as high as 1000 ppb Dimilin is not significantly (P < 0.05) different from the controls Fecundity of A. tonsa was not significantly (P < 0.05) altered by 1 to 4 d treatment with l , l 0 or 100 ppb Dimilin but the hatch of viable nauplii was reduced from 90+ % to less than 50 % in l ppb after 12 h of treatment and to less than 5 % in 10 ppb after 24 h of treatment. No viable n a u p l~i were produced by females held in either 1 or 10 ppb Dimilin for more than 36 h. When Dimil~n treatment ceased and the females were placed in seawater, the effect of Dimilin was not readily reversed No viable nauplii were produced by these females for at least the next 30 h after treatment ended

show abstract

Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Insect Growth Regulator Dimilin® (TH 6040) on Fecundity and Egg Viability of the Marine Copepod Acartia tonsa

Tester¹,

Costlow²

1981

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…These insect growth regulators were developed not only to be efficient pesticides, but also to be highly specific to insects without risk to other nontarget animals, especially vertebrates. Although these compounds can be active against some insect species and not others, studies have documented the sensitivity of certain nontarget arthropods, especially crustaceans, to these compounds (287)(288)(289)(290)(291)(292)(293)(294). In addition to insect growth regulators, the well-known case of DDT and its effects on avian eggshell thinning has been linked to endocrine pathways (295 (311) found that populations of the dog-whelk snail (Nucella lapillus) were disappearing or diminishing in many locations along the United Kingdom coast (310)]; N. lapillus does not occur in the Northeast Pacific).…”

Section: Effects On Aquatic Life and Wildlifementioning

confidence: 99%

Environmental Endocrine Disruption: An Effects Assessment and Analysis

Crisp¹,

Clegg²,

Cooper³

et al. 1998

Environmental Health Perspectives

165

145

View full text Add to dashboard Cite

“…Mortality induced by DFB in insects and crustaceans is attributed to the inability of the individual to cast its exuvium during the moulting process (Christiansen et al 1978;Gijswijt et al 1979;Gulka et al 1980;Weiss et al 1987). Little concern exists over its effects on organisms such as birds, mammals and fishes because of its specific mode of action (Granett 1987;Mauchamp and Perrineau 1987).…”

Section: Introductionmentioning

confidence: 99%

Effect of diflubenzuron on the maturation and reproductive success of the copepod Eurytemora affinis

et al. 1996

View full text Add to dashboard Cite

: The insect growth regulator diflubenzuron (DFB) may have substantial effects on non-target organisms, especially crustaceans. By targeting the moulting process, DFB would be expected to elicit the most obvious effects on subadult crustaceans which moult frequently. Previous studies in this laboratory have demonstrated acute and chronic effects of DFB on survival and development of nauplii of the estuarine copepod Eurytemora affinis at water concentrations of less than 1 p.p.b. The present study examines the effects on maturation to adulthood and brood production. Effects on brood production were observed at 0.8 p.p.b. DFB in individuals exposed only during the copepodite stages. Significant effects on production of nauplii were documented only in the early exposure to 0.93 p.p.b. DFB. Inability of post-moult copepodites to completely cast exuviae also was documented in the exposed treatments. At salinities of 2, 10 and 15 p.p.t., survival from naupliar to adult stages was significantly reduced at 0.84 p.p.b. and none survived to adulthood at 1.7 p.p.b. These results suggest that DFB has substantial effects on survival and development of E. affinis at a water concentration of less than 1 p.p.b. DFB concentrations exceeding this concentration have been reported from Chesapeake Bay surface waters although there is no current evidence of potentially toxic concentrations overlapping with the known distribution of E. affinis in the bay.

show abstract

Effects of the insect growth regulator Dimilin® (TH 6040) on larval development of two estuarine crabs

Cited by 40 publications

References 11 publications

Effect of Insect Growth Regulator Dimilin® (TH 6040) on Fecundity and Egg Viability of the Marine Copepod Acartia tonsa

Effect of Insect Growth Regulator Dimilin® (TH 6040) on Fecundity and Egg Viability of the Marine Copepod Acartia tonsa

Environmental Endocrine Disruption: An Effects Assessment and Analysis

Effect of diflubenzuron on the maturation and reproductive success of the copepod Eurytemora affinis

Contact Info

Product

Resources

About