The benthic macrofauna of Lake Ontario
Technical Report
14
Out-of-print
By: Jarl K. Hiltunen
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Abstract
The presence and relative abundance of bottom macrofauna in Lake Ontario are documented. Bottom samples were collected at 24 stations in September 1964. The quantity of organisms and the distribution of some species were affected by depth of water. Samples from the shallower stations (47.5 m or less) yielded an average of 41,631 organisms per mA? whereas the deeper stations (91.5 m or more) yielded an average of only 7,938. The Oligochaeta, the most abundant group of macroinvertebrates, was represented by four families - Enchytraeidae, Lumbriculidae, Naididae, and Tubificidae. The lumbriculid worm, Stylodrilus heringianus, and the burrowing amphipod, Pontoporeia affinis, were rare or absent in areas affected by pollution. In kinds and abundance of organisms, the bottom fauna in Lake Ontario was generally similar to that in Lake Michigan.
Suggested Citation
Hiltunen, J.K., 1969, The benthic macrofauna of Lake Ontario: Technical Report 14, p. 39-50.
| Publication type | Report |
|---|---|
| Publication Subtype | Federal Government Series |
| Title | The benthic macrofauna of Lake Ontario |
| Series title | Technical Report |
| Series number | 14 |
| Year Published | 1969 |
| Language | English |
| Publisher | Great Lakes Fishery Commission |
| Contributing office(s) | Great Lakes Science Center |
| Description | p. 39-50 |
| Larger Work Type | Report |
| Larger Work Subtype | Federal Government Series |
| Larger Work Title | Limnological survey of Lake Ontario, 1964 |
| First page | 39 |
| Last page | 50 |