Water quality - Guidance on sampling of mesozooplankton from marine and brackish water using mesh

This document specifies procedures for sampling of mesozooplankton using nets and continuous ribbon-sampling devices in marine and brackish waters for the purpose of water quality assessment and determination of ecological status of ecosystems.
Guidance on sampling procedures and the subsequent steps of preservation and storage are given. The sampling procedures allow estimates of species occurrence and their abundance (relative or absolute), including spatial distribution and seasonal and long-term temporal trends, for a given body of water.
The described methods are restricted to the sampling of mesozooplankton that inhabit marine and brackish waters and exclude the shallow littoral zones which require a different type of sampling (e.g. zooplankton in salt marshes).

Wasserbeschaffenheit - Anleitung zur Probenahme von Mesozooplankton aus marinen und Übergangsgewässern mittels Netzen

Dieses Dokument legt Verfahren zur Probenahme von Mesozooplankton mithilfe von Netzen und kontinuierlichen Probenahmegeräten in marinen und brackigen Gewässern zum Zwecke der Bewertung der Wasserqualität und der Bestimmung des ökologischen Zustands von Ökosystemen fest.
Es wird eine Anleitung zu Probenahmeverfahren und den anschließenden Schritten der Konservierung und Lagerung gegeben. Die Probenahmeverfahren ermöglichen eine Abschätzung des Vorkommens von Arten und deren Abundanz (relativ oder absolut), einschließlich der räumlichen Verteilung und saisonaler sowie Langzeittrends für einen bestimmten Wasserkörper.
Die beschriebenen Verfahren gelten nur für die Probenahme von Mesozooplankton, das marine und brackige Gewässer bewohnt, und berücksichtigen nicht die flachen Uferzonen, die eine andere Art der Probenahme erfordern (z. B. Zooplankton in Salzmarschen).

Qualité de l'eau - Document d'orientation pour l'échantillonnage du mésozooplancton dans les eaux de mer ou saumâtres à l'aide de filets

Le présent document fournit des procédures pour l'échantillonnage du mésozooplancton dans les eaux marines et saumâtres, à l'aide de filets et de dispositifs d'échantillonnage en continu sur bandes collectrices, dans le but d'évaluer la qualité de l'eau et de déterminer l'état écologique des écosystèmes.
Des recommandations relatives aux procédures d'échantillonnage et aux étapes suivantes de conservation et de stockage sont fournies. Les procédures d'échantillonnage donnent une estimation de l'occurrence des espèces et de leur abondance (relative ou absolue), y compris la distribution spatiale et les tendances temporelles saisonnières et à long terme pour une masse d'eau donnée.
Les méthodes décrites sont limitées à l'échantillonnage du mésozooplancton qui habite les eaux marines et saumâtres et excluent les zones littorales peu profondes qui requièrent un autre type d'échantillonnage (par exemple, le zooplancton des marais salants).

Kakovost vode - Navodilo za vzorčenje mezozooplanktona v morskih in brakičnih vodah s pomočjo mrež

Ta dokument določa metodo za vzorčenje mezozooplanktona iz morskih in brakičnih vod s pomočjo mrež.

General Information

Status
Published
Publication Date
07-May-2019
Withdrawal Date
29-Nov-2019
Current Stage
9020 - Submission to 2 Year Review Enquiry - Review Enquiry
Start Date
15-Jul-2024
Completion Date
15-Jul-2024

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SLOVENSKI STANDARD
01-julij-2019
Kakovost vode - Navodilo za vzorčenje mezozooplanktona v morskih in brakičnih
vodah s pomočjo mrež
Water quality - Guidance on sampling of mesozooplankton from marine and brackish
water using mesh
Wasserbeschaffenheit - Anleitung zur Probenahme von Mesozooplankton aus marinen
und Übergangsgewässern mittels Netzen
Qualité de l'eau - Document d'orientation pour l'échantillonnage du mésozooplancton
dans les eaux de mer ou saumâtres à l'aide de filets
Ta slovenski standard je istoveten z: EN 17218:2019
ICS:
13.060.10 Voda iz naravnih virov Water of natural resources
13.060.70 Preiskava bioloških lastnosti Examination of biological
vode properties of water
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17218
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2019
EUROPÄISCHE NORM
ICS 13.060.70
English Version
Water quality - Guidance on sampling of mesozooplankton
from marine and brackish water using mesh
Qualité de l'eau - Document d'orientation pour Wasserbeschaffenheit - Anleitung zur Probenahme von
l'échantillonnage du mésozooplancton dans les eaux de Mesozooplankton aus marinen und
mer ou saumâtres à l'aide de filets Übergangsgewässern mittels Netzen
This European Standard was approved by CEN on 15 March 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17218:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Principle . 7
5 Sampling device . 8
5.1 General . 8
5.2 Nets . 8
5.3 Other field equipment . 10
5.4 Preserving solutions and other chemicals . 11
6 Prearrangements of sampling . 12
6.1 Documentation of strategies and methods . 12
6.2 Preparation of sampling equipment . 12
6.3 Safety instructions . 12
7 Sampling procedure . 12
7.1 Investigation programme . 12
7.2 Number and location of sampling sites . 13
7.2.1 General . 13
7.3 Diurnal sampling period . 14
7.3.1 General . 14
7.3.2 Sample size . 14
7.3.3 Geographical localization of sampling sites . 14
7.4 Operating the sampling device . 15
7.4.1 Vertical net hauls . 15
7.4.2 Horizontal tows/hauls . 15
7.4.3 Filling and labelling of sample bottles . 16
7.4.4 Preservation and storage of samples . 17
7.5 Field data recording . 18
8 Quality assurance . 18
Annex A (informative) Examples of sampling devices . 19
A.1 Bongo nets . 19
A.2 Continuous plankton recorder . 19
A.3 WP2 net . 20
A.4 Multinets . 20
A.5 Gulf VII sampler . 21
Annex B (informative) Preservation . 22
B.1 Preservation. 22
B.2 Formaldehyde (formalin) . 22
B.2.1 General . 22
B.2.2 Advantages of formaldehyde . 22
B.2.3 Disadvantages of formaldehyde . 23
B.3 Lugol’s Iodine . 23
B.3.1 General . 23
B.3.2 Advantages of Lugol’s Iodine (over formaldehyde) . 23
B.3.3 Disadvantages of Lugol’s Iodine . 23
B.4 Ethanol . 24
B.4.1 Advantages of ethanol . 24
B.4.2 Disadvantages of ethanol . 24
Annex C (informative) Corrections of depth from wire angle [1] . 25
Annex D (informative) Example of a field data sheet . 26
Annex E (informative) Ribbon-sampling devices . 27
E.1 Continuous plankton recorder (CPR) . 27
E.2 Longhurst Hardy plankton recorder (LHPR) . 27
Bibliography . 28

European foreword
This document (EN 17218:2019) has been prepared by Technical Committee CEN/TC 230 “Water
analysis”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2019, and conflicting national standards
shall be withdrawn at the latest by November 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Introduction
The Zooplankton community is an important part of the pelagic food web, since it forms the link
between primary producers and higher trophic levels. Changes in phytoplankton biomass and
species/size composition change mesozooplankton community structure and productivity. Such
changes potentially influence fish stock recruitment and sedimentation (i.e. indirectly affecting oxygen
concentration in the bottom water) [1].
Surveys of zooplankton have provided valuable information for the environmental monitoring of
marine and brackish waters, because this group includes species which:
— occur in a wide range of marine and brackish waters over a large geographical area and at the same
time have specific environmental requirements,
— are relatively well known with regard to their geographical distribution and environmental
requirements, and
— have a generally high capacity for dispersal enabling them to respond rapidly to remedial actions,
while sampling requires only a modest expenditure of time and equipment.
A procedure for analysing zooplankton (identification, counting and biomass determination) in marine
and brackish waters is given in EN 17204 [2]. This procedure comprises how to identify and enumerate
zooplankton collected in nets which is utilized to estimate quantitative information on diversity,
abundance and biomass with regard to spatial distribution and long-term temporal trends for a given
body of water.
WARNING — Persons using this document should be familiar with normal laboratory practice. This
document does not purport to address all of the safety problems, if any, associated with its use. It is the
responsibility of the user to establish appr
...

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