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Standard Practice for Sampling Fish with Rotenone
Translate name
STANDARD published on 1.4.2019
Designation standards: ASTM D4131-19
Note: WITHDRAWN
Publication date standards: 1.4.2019
SKU: NS-945768
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
block-off nets, detoxify, dip nets, lentic, limnetic, littoral, lotic, rotenone,, ICS Number Code 67.120.30 (Fish and fishery products)
1. Scope | ||
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: (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°C) and highly alkaline water. 1.3.2 Smaller fish and those without air bladders usually do not float. 1.3.3 Completely random selection of sample areas is not possible. 1.3.4 Overkill beyond sample area can sometimes occur. 1.3.5 Food web organisms may be eliminated. 1.4 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. 1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||
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