| 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. |
| Genre: | Federal Government Series |
| ProdID: | 2000006 |
| Citation Author: | Hiltunen, Jarl K. |
| Citation Contributing Office: | Great Lakes Science Center |
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| Citation End Page: | 50 |
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| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Limnological survey of Lake Ontario, 1964 |
| Citation LatN: | |
| Citation LatS: | |
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| Citation No Pagination: | |
| Citation Number Of Pages: | 12 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | p. 39-50 |
| Citation Projection: | |
| Citation Public Comments: | Out-of-print |
| Citation Publisher: | Great Lakes Fishery Commission |
| Citation Series: | Technical Report |
| Citation Series Code: | |
| Citation Series Number: | 14 |
| Citation Search Results Text: | The benthic macrofauna of Lake Ontario; 1969; Federal Government Series; 14; Limnological survey of Lake Ontario, 1964; Hiltunen, Jarl K. |
| Citation Start Page: | 39 |
| Citation Volume: | |
| Citation Year: | 1969 |
| Type: | citation/reference |
| Text: | The benthic macrofauna of Lake Ontario; 1969; Federal Government Series; 14; Limnological survey of Lake Ontario, 1964; Hiltunen, Jarl K. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DOCUMENT): | http://www.glfc.org/pubs/TechReports/Tr14.pdf |
| Date Other: | Wed, 1 Jan 1969 01:00 -0600 |
| Publisher: | Great Lakes Fishery Commission |
