DIN EN 15910-2014 Water quality - Guidance on the estimation of fish abundance with mobile hydroacoustic methods German version EN 15910 2014《水质 采用移动水声法评估鱼类丰富度指南 德文版本EN 15910-2014》.pdf
《DIN EN 15910-2014 Water quality - Guidance on the estimation of fish abundance with mobile hydroacoustic methods German version EN 15910 2014《水质 采用移动水声法评估鱼类丰富度指南 德文版本EN 15910-2014》.pdf》由会员分享,可在线阅读,更多相关《DIN EN 15910-2014 Water quality - Guidance on the estimation of fish abundance with mobile hydroacoustic methods German version EN 15910 2014《水质 采用移动水声法评估鱼类丰富度指南 德文版本EN 15910-2014》.pdf(49页珍藏版)》请在麦多课文档分享上搜索。
1、July 2014Translation by DIN-Sprachendienst.English price group 19No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13
2、.060.70!%2w“2158495www.din.deDDIN EN 15910Water quality Guidance on the estimation of fish abundance with mobilehydroacoustic methods;English version EN 15910:2014,English translation of DIN EN 15910:2014-07Wasserbeschaffenheit Anleitung zur Abschtzung der Fischabundanz mit mobilen hydroakustischen
3、Verfahren;Englische Fassung EN 15910:2014,Englische bersetzung von DIN EN 15910:2014-07Qualit de leau Guide sur lestimation de labondance des poissons par des mthodes hydroacoustiquesmobiles;Version anglaise EN 15910:2014,Traduction anglaise de DIN EN 15910:2014-07www.beuth.deIn case of doubt, the G
4、erman-language original shall be considered authoritative.Document comprises 49 pages06.14 DIN EN 15910:2014-07 2 A comma is used as the decimal marker. National foreword This document (EN 15910:2014) has been prepared by Technical Committee CEN/TC 230 “Water analysis” (Secretariat: DIN, Germany). T
5、he responsible German body involved in its preparation was the Normenausschuss Wasserwesen (Water Prac-tice Standards Committee), Working Committee NA 119-01-03-05 UA Biologische Verfahren of NA 119-01-03 AA Wasseruntersuchung. Designation of the method: Guidance on the estimation of fish abundance
6、with mobile hydroacoustic methods (M 23): Method DIN EN 15910 M 23 This document has been prepared under mandate M/424 “Development and enhancement of European standards to determine the chemical and ecological water quality in support of the Water Framework Directive (WFD)” (Directive 2000/60/EC of
7、 the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy*) which was given to CEN by the European Commission. The method specified in this standard supports the requirements given in Annex V of the Water Framework Direc
8、tive (WFD). *) Registered in the DITR database of DIN Software GmbH, obtainable from: Beuth Verlag GmbH, 10772 Berlin. DIN EN 15910:2014-07 3 Expert assistance and specialized laboratories will be required to perform the analyses described in this standard. Existing safety requirements are to be obs
9、erved. Depending on the objective of the analysis, a check shall be made on a case-by-case basis as to whether and to what extent additional conditions will have to be specified. This standard has been prepared by the Normenausschuss Wasserwesen (Water Practice Standards Com-mittee) in collaboration
10、 with the Wasserchemische Gesellschaft Fachgruppe in der Gesellschaft Deutscher Chemiker (Water Chemistry Society Division of the German Chemical Society). It is part of the series Deutsche Einheitsverfahren zur Wasser-, Abwasser- und Schlammuntersuchung (German standard methods for the examination
11、of water, waste water and sludge): Guidance on the estimation of fish abundance with mobile hydroacoustic methods (M 23): Standard methods published as DIN Standards are obtainable from Beuth Verlag GmbH, either individually or grouped in volumes. The standard methods included in the loose-leaf publ
12、ication entitled Deutsche Einheits-verfahren zur Wasser-, Abwasser- und Schlammuntersuchung will continue to be published by Beuth Verlag GmbH and Wiley-VCH Verlag GmbH EN 14757, Water quality Sampling of fish with multi-mesh gillnets; EN 14962, Water quality Guidance on the scope and selection of f
13、ish sampling methods. The initial draft of this document was constructed by an international group of experts during an ad hoc joint EIFAC/CEN workshop. WARNING Persons using this European Standard should be familiar with normal laboratory and fieldwork practice. This standard does not purport to ad
14、dress all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. IMPORTANT It is absolutely essential that tests conducted according to this E
15、uropean Standard be carried out by suitably trained staff. 5DIN EN 15910:2014-07EN 15910:2014 (E)1 Scope This European Standard specifies a standardized method for data sampling and procedures for data evaluation of fish populations in large rivers, lakes and reservoirs, using hydroacoustic equipmen
16、t deployed on mobile platforms (boats and vessels). This standard covers fish population abundance estimates of pelagic and profundal waters 15 m mean depth with the acoustic beam oriented vertically, and the inshore and surface waters of water bodies 2 m depth with the beam oriented horizontally. T
17、he size structure of fish populations can only be determined to a relatively low degree of precision and accuracy, particularly from horizontally-deployed echosounders. As acoustic techniques are presently unable to identify species directly, other direct fish catching methods should always be used
18、in combination. This standard provides recommendations and requirements on equipment, survey design, data acquisition, post-processing of data and results and reporting. A selected literature with references in support of this standard is given in the Bibliography. 2 Normative references The followi
19、ng documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 14962:2006, Wat
20、er quality - Guidance on the scope and selection of fish sampling methods 3 Terms, definitions, symbols and abbreviated terms 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14962:2006 apply. 3.2 Symbols and abbreviated terms Common abbreviations us
21、ed in this document: EDSU Elementary Distance Sampling Unit; Unit: Metre (m); GPS Global Positioning System; MUR Maximum Usable Range; Unit: Metre (m); PST Peak of Small Targets; SaArea Backscattering Strength; Unit: decibel, dB re 1 (m2m-2); SvVolume Backscattering Strength; Unit: decibel, dB re 1
22、m-1; SED Single Echo Detection; SNR Signal to Noise Ratio; ST Single Target; TS Target Strength; Units = dB re 1m2; TVG Time Varied Gain; YOY Young of the year. 6DIN EN 15910:2014-07EN 15910:2014 (E) 4 Principle and field of application Hydroacoustic (or echosounding) technologies are effective and
23、efficient methods for sampling fish in the water column 35. Fisheries acoustics methods are analogous to remote sensing techniques and advantageous to other sampling methods as nearly the entire water column can be sampled quickly and non-destructively, areal coverage is continuous, data resolution
24、is on the order of tenths of metres, and data can be post-processed in a variety of ways. However, other methods and procedures are required for determination of species identity and age structure. Acoustics is used to gather information remotely by transmitting a pulsed beam of sound energy into a
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