ISO 16665:2014 水質 — 海洋軟底大型動物相の定量的サンプリングとサンプル処理のガイドライン | ページ 5

2.1.1

benthic

dwelling at the bottom of an aquatic environment

2.1.2

benthic macrofauna

bottom-dwelling animals retained on a mesh screen of 0,5 mm or 1 mm aperture size

2.1.3

receiving water body

recipient

recipient water body

water body which receives an input of material of either natural or anthropogenic origin

Note 1 to entry: The term often appears in the context of organic enrichment by, for example, effluent from municipal waste water outlets or industrial processed water. The macrofaunal part of receiving water body surveys describe the state of organic enrichment in a given area.

[SOURCE:ISO 5667‑19:2004, ³ definition 3.4, modified ― in the Note to entry, “contamination” has been replaced by “organic enrichment”, and it is further specified that the terms apply to the macrofaunal part of receiving water body surveys]

2.1.4

soft bottom

areas of sea floor consisting of loose deposited particles including clay, mud, sand and gravel, shells and maerl, also including mixed substrata with gravels, small stones and pebbles scattered on a bed of finer material, but excluding cobbles

2.1.5

soft-bottom fauna

animals living on, or completely or partially buried in, soft-bottom sediments

2.1.6

sublittoral

portion of the shore which is either totally immersed or only uncovered by the receding tide infrequently and then for very short period (i.e. below the littoral zone)

2.2.1

baseline survey

environmental impact assessment

survey with emphasis on characterization and description of biotic and abiotic conditions in the survey area, which provides the basis for future monitoring and/or follow-up surveys

[SOURCE:ISO 5667‑19:2004, ³ definition 3.2, modified — “classification" changed to “characterization";"biotic and abiotic" added]

2.2.2

reference station

one or more sampling stations chosen to represent environmental conditions in a given area, i.e. free from direct anthropogenic influences

2.2.3

reference collection

collection of identified specimens, used for reference purposes

Note 1 to entry: Institute reference collections are usually verified by an appropriate and approved taxonomic specialist. In addition, individual identifiers may keep a personal collection and/or some surveys require contract- or area-specific reference collections.

2.2.4

replicate samples

series of samples taken in the same time frame, at the same sampling station, in the same manner for statistical validity and comparison

[SOURCE:ISO 5667‑19:2004, ³ definition 3.6, modified ― “simultaneously” has been changed to “in the same time frame”; “for statistical validity and comparison” added]

Note 1 to entry: Replicate samples can include sets of sub-samples taken from a larger sample.

2.2.5

sampling station

precise location where samples are collected

Note 1 to entry: A sampling station is defined by its geographical position (latitude, longitude), its depth (relative to chart datum and normalized to mean low water as given in tide tables) and any other invariant or physical conditions. The station is delineated using the given level of precision. In cases of doubt, when revisiting sampling stations, emphasis should be placed on landmarks and water depth.

2.2.6

sub-sample

ideally representative portion removed from a sample, taken for separate analysis

[SOURCE:ISO 5667‑19:2004, ³ definition 3.7, modified ― “ideally” and “taken for separate analysis” added]