| Autor: |
Armstrong, John W., Liston, Charles R., Tack, Peter I., Anderson, Robert C. |
| Zdroj: |
Transactions of the American Fisheries Society; March 1977, Vol. 106 Issue: 2 p151-155, 5p |
| Abstrakt: |
Round whitefish were studied in 1972 and 1974 as a portion of a broad ecological study of a near-shore area of eastern Lake Michigan near Ludington, Michigan. Of 690 fish taken by gill nets, Age III fish were predominant in 1972 and Age IV in 1974. Male and female fish were taken in approximately equal numbers. About 50% of Age II and 90% of Age III fish were mature. Comparative growth and length-weight data indicated that the round whitefish were larger at any given age than those from previously reported populations. On a seasonal basis, benthic insect larvae and small mollusks were the organisms most frequently ingested. |
| Databáze: |
Supplemental Index |
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