Titlebook: Limnology and Fisheries of Georgian Bay and the North Channel Ecosystems; M. Munawar Book 1988 Kluwer Academic Publishers, Dordrecht 1988

crucial

A comparison of the effectiveness of sea lamprey control in Georgian Bay and the North Channel of Lmanagement practices, has contributed to the restoration of valuable stocks of fish — particularly the salmonids. Sea lamprey producing tributaries of Lake Huron have been treated with lampricide on a continuing basis since 1966, and indications of decreasing abundance of sea lamprey have been evide

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APRON

978-94-010-7894-8Kluwer Academic Publishers, Dordrecht 1988

Explicate

Developments in Hydrobiologyhttp://image.papertrans.cn/l/image/586216.jpg

豎琴

Geology and environmental significance of sediment distributions in an area of the submerged Niagarels but there arc anomalously high values in some deepwater modern muds..In the bottom sediment habitat of modern benthos, the distribution of chironomids seems to reflect silt content. Oligochaetes are least in areas of thin Recent mud or exposed glaciolacustrine clay. . and sculpins are most numer

Tidious

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動機(jī)

lethal

The dominant attached filamentous algae of Georgian Bay, the North Channel and Eastern Lake Huron: er outfalls, river mouths and harbour areas (e.g., in μg g., Cr 29.0, Cu 46.4, Ni 34.0, Pb 55.0) is indicative of discrete source loadings, while elevated levels at remote sites in eastern Georgian Bay (e.g., in μg g., Cr 12.0–15.5, Cu 18.0, Ni 15.0–16.0, Pb 8.5–8.8) are suggestive of generalized lo

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