Persistence of the insect growth regulator Dimilin® in brackish water: a laboratory evaluation using larvae of an estuarine crab as indicator

Autor:	J. D. Costlow, M. E. Christiansen
Rok vydání:	1980
Předmět:	Larva geography geography.geographical_feature_category Brackish water Ecology Cuticle Zoology Estuary General Medicine Aquatic Science Biology Oceanography Persistence (computer science) chemistry.chemical_compound Diflubenzuron chemistry Insect growth regulator Moulting
Zdroj:	Helgoländer Meeresuntersuchungen. 33:327-332
ISSN:	1438-3888 0017-9957
DOI:	10.1007/bf02414758
Popis:	The persistence of Dimilin® (diflubenzuron), an insect growth regulator which interferes with chitin formation in the cuticle of insect larvae, has been studied using larvae of the estuarine brachyuran crabRhithropanopeus harrisii (Gould) as test material. The results of the present investigation show that Dimilin breaks down relatively slowly in brackish water. It took about 8 weeks before a 10 ppb solution of Dimilin degraded to a level which did not affect survival of the crab larvae. Earlier it was shown (Christiansen et al., 1978) that nearly 100% ofR. harrisii larvae at each of the four zoeal stages died when molting to the succeeding stage after only 3 days of exposure to 10 ppb Dimilin. Hence, one should be extremely cautious in using Dimilin in estuarine areas where crab larvae occur.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ada885eee7b0097c4dc3efe87997b69f https://doi.org/10.1007/bf02414758 Zobrazit plný text záznamu Full text from SpringerLink