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ASTM D 4131 Document Information:
Title
Standard Practice for Sampling Fish with Rotenone
ASTM International
Publication Date:
Apr 12, 1984
Scope:
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: (1) preventing fish from
escaping the sample area and (2) retrieving all affected fish, which
may take up to three days.
Advantages:
Easily detoxified.
All native freshwater fish are susceptible, but it has low toxicity to
mammals and birds.
At low concentrations fish toxicity depends on species, age, and size.
The suffocating action is reversible.
Limitations:
It is less effective in cold (below 20°C) and highly alkaline
water.
Smaller fish and those without air bladders usually do not float.
Completely random selection of sample areas is not possible.
Overkill beyond sample area can sometimes occur.
Food web organisms may be eliminated.
Applications - this practice is useful in both short- and long-term
studies for management and
impact assessment purposes. It is adaptable to both lotic and lentic
situations in littoral and
limnetic areas.
The values stated in inch-pound units are to be regarded as the
standard. The values given in
parentheses are for information only.
This standard does not purport to address all of the safety concerns,
if any, associated with its
use. It is the responsibility of the user of this standard to
establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use. For
specific hazards, see Section 6.
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