ASTM D4131-1984(2005)
用鱼藤酮采集鱼样的标准规程

Standard Practice for Sampling Fish with Rotenone

标准号

ASTM D4131-1984(2005)

发布日期

1984年

实施日期

废止日期

无

中国标准分类号

B50

国际标准分类号

67.120.30 (Fish and fishery products)

发布单位

US-ASTM

适用范围

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) preventing fish from escaping the sample area and (2) 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 20176;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 Applications8212;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 the standard. The values given in parentheses are for information only.

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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazards, see Section 6.

ASTM D4131-1984(2005) 中可能用到的仪器设备