ASTM-D4558 Standard Practice for Collecting Benthic Macroinvertebrates With Drift Nets (Withdrawn 2003)

ASTM-D4558 - 2002 EDITION - SUPERSEDED -- See the following: ASTM-E1391
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Standard Practice for Collecting Benthic Macroinvertebrates With Drift Nets (Withdrawn 2003)

Scope

1.1 Drift nets are useful for collecting macroinvertebrates that actively or passively enter the water column or that are dislodged from the substrate; naturally or by stress. They are particularly well-suited for synoptic surveys because they are light weight and easily transported.

1.2 Thousands of organisms, including larvae of stoneflies, mayflies, caddisflies, and midges and other Diptera, may be collected in a sampling period of only a few hours.

1.3 The drift net efficiently collects organisms originating from all types of substrates and a wide spectrum of microhabitats in lotic (flowing) waters.

1.4 The device is restricted to flowing rivers or streams with a current velocity of more than 0.05 m/s.

1.5 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.

Keywords

macroinvertebrates; water; organisms; larvae; stoneflies; ICS Number Code 07.080 (Biology. Botany. Zoology)

To find similar documents by ASTM Volume:

11.05 (Pesticides and Alternative Control Agents; Environmental Assessment; Hazardous Substances and Oil Spill Response)

To find similar documents by classification:

07.080 (Biology. Botany. Zoology Including biotechnology)

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Document Number

ASTM-D4558-02

Revision Level

2002 EDITION

Status

Superseded

Modification Type

Replaced

Publication Date

April 10, 2002

Document Type

Practice

Page Count

4 pages

Committee Number

E47.03