Oxygen consumption of a Chaoborus species from a neotropical reservoir (socuy reservoir, Venezuela)

✍ Scribed by Alnair Corona; Carlos López

• Book ID: 102280608
• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 274 KB
• Volume: 82
• Category: Article
• ISSN: 1434-2944
• DOI: 10.1002/iroh.19970820308

✦ Synopsis

Oxygen consumption of all four larval instars of a Chaoborus species from Socuy Reservoir in western Venezuela was h d i e d under laboratory conditions at 25 "C. On a logarithmic basis, oxygen consumption per organism increased as a smooth, linear function of body weight (0.49 power of body weight). Observed rates were Iower than other Chaoborus species with comparable body weight at the same temperature. Oxygen consumption per unit weight decreased from smaller to large instar larvae.

With the exception of instar I, values of oxygen consumption per unit weight were lower than values reported for other Chaoborus species. The results suggest that our species have low energy demands for maintenance, and are consistent with suggestions about high efficiency in use of energy in genus Chaoborus.