INVESTIGADORES
ZILLI florencia Lucila
artículos
Título:
BIOMETRY AND LIFE CYCLE OF Chironomus calligraphus Goeldi 1905 (Diptera, Chironomidae) in laboratory conditions
Autor/es:
ZILLI, FLORENCIA; MONTALTO LUCIANA; PAGGI, ANALÍA CONSTANCIA; MARCHESE MERCEDES ROSA
Revista:
INTERCIENCIA
Editorial:
Interciencia
Referencias:
Lugar: Caracas; Año: 2008 vol. 33 p. 767 - 770
ISSN:
0378-1844
Resumen:
Chironomid larvae are important components of aquatic biota,due to their abundance and participation in food webs, andbecause they are considered environmental bioindicators. Manylaboratory studies have analyzed the effects of pollutants on chironomids,especially on Chironomus calligraphus Goeldi, 1905.However, little is known about the life cycle attributes of Chironomidae(Diptera). The main pourpose of this study was toanalyze C. calligraphus life cycle under laboratory conditions.The growth rate was almost constant between larval instars (r=1.60 ±0.02), the immature development time (D) was 15 daysand the minimum generation time (G) was 18 days. Accordingto these results and field observations C. calligraphus has atemperature-dependent life cycle, with several overlapped shortduration cohorts in spring-summer followed by one or two generationsof longer duration in winter.
