Effect of low dissolved oxygen on aquatic life stages of the caddisfly Clistoronia magnifica (Limnephilidae)

• Published in: Archives of environmental contamination and toxicology Vol. 31; no. 4; pp. 453 - 458
• Main Authors: NEBEKER, A. V, ONJUKKA, S. T, STEVENS, D. G, CHAPMAN, G. A
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer-Verlag 01-11-1996; Berlin; New York, NY
• Subjects: Animal, plant and microbial ecology; Animals; Applied ecology; Biological and medical sciences; Clistoronia magnifica; Dose-Response Relationship, Drug; Ecotoxicology, biological effects of pollution; Fresh water environment; Freshwater; Fundamental and applied biological sciences. Psychology; Insecta - drug effects; Insecta - embryology; Insecta - growth & development; Larva - drug effects; Limnephilidae; Oxygen - pharmacology; Pupa - drug effects; Solubility; Trichoptera; Laboratory study; Embryo; Low content; Insecta; Trichoptera; Limnephilidae; Biological monitoring; Freshwater environment; Life cycle; Sensitivity; Larva; Arthropoda; Water quality; Developmental stage; Invertebrata; Dissolved oxygen
• ISSN: 0090-4341; 1432-0703
• DOI: 10.1007/BF00212427

Embryos, larval stages (instars I-V), pupal stages, and pharate adults of the caddisfly Clistoronia magnifica (Limnephilidae) were exposed to a range of dissolved oxygen (DO) concentrations (0.9-8.3 mg/L) for 4-88 days in the laboratory. Some embryos suspended growth at low DO, resuming growth and hatch when DO was increased. Embryos and larvae all had 96-h EC50 values (50% mortality at 96 h) of about 2.0 mg/L DO. The statistical Effect and No-Effect Thresholds for larvae exposed through two molts from instars I-III were 1.6 and 2.4 mg/L, respectively. At DO concentrations below 4.6 mg/L, egg hatch, larval development, molting success, time of molting, pupation, and adult emergence were delayed.