| Main Title |
Influence of Sieve Mesh Size Selectivity on Benthic Invertebrate Indices of Eutrophication. |
| Author |
Mason, Jr., William T. ;
Lewis, Philip A. ;
Hudson, Patrick L. ;
|
| CORP Author |
Environmental Monitoring and Support Lab.-Cincinnati, OH. |
| Year Published |
1975 |
| Report Number |
EPA-600/J-75-003; |
| Stock Number |
PB80-204696 |
| Additional Subjects |
Particle size ;
Invertebrates ;
Samplers ;
Water pollution ;
Sieves ;
Aquatic biology ;
Worms ;
Benthos ;
Larvae ;
Diptera ;
Indicator species ;
Reprints ;
Eutrophication
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB80-204696 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
15p |
| Abstract |
The selective retention of benthic invertebrates by sieves of various mesh sizes was demonstrated by Jonasson (1955, 1958) who reported that decreasing the mesh opening from 0.62 to 0.51 mm (effective decrease on one-third mesh opening area) resulted in samples with an average of 47% more Tanypus chironomid larvae. Sieve mesh size was also found to be highly selective toward oligochaetes of particular size ranges. Studies supported Jonasson's findings that the head capsule width of chironomid larvae governed their retention. |
