Full Description

1.1 This practice covers determination of the quantitative and qualitative species composition of fish in a specified area. The successful use of this technique is dependent on: ( ) preventing fish from escaping the sample area and ( ) retrieving all affected fish, which may take up to three days.

1.2 Advantages:

1.2.1 Easily detoxified.

1.2.2 All native freshwater fish are susceptible, but it has low toxicity to mammals and birds.

1.2.3 At low concentrations fish toxicity depends on species, age, and size.

1.2.4 The suffocating action is reversible.

1.3 Limitations:

1.3.1 It is less effective in cold (below 20

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Published: 06/10/1999 Number of Pages: 2File Size: 1 file , 27 KB