✦ LIBER ✦
Winter and spring macroinvertebrate drift in an outpocketing of the lower Mississippi River, Louisiana (USA)
✍ Scribed by Peter Koetsier; C. Fred Bryan
- Book ID
- 104616655
- Publisher
- Springer
- Year
- 1989
- Tongue
- English
- Weight
- 313 KB
- Volume
- 185
- Category
- Article
- ISSN
- 1573-5141
No coin nor oath required. For personal study only.
✦ Synopsis
To examine temporal variations in macroinvertebrate drift in a high-order river system, surface drift was sampled each month from November 1984 to June 1985 in the lower Mississippi River . Routinely, two stations were sampled at 2-hr intervals through the night, but during January and April samples were taken every 4 hrs for a 24-hr period . Greatest drift density occurred in April, when Hydroida dominated, while lowest densities occurred in December . Drifting organisms displayed the bigeminus pattern with highest densities 4 hrs after dusk and lowest numbers one hour before sunrise .