13.060.70;65.150 标准查询与下载

DIN EN 14757:2015 水质.用多眼加筋网对鱼进行取样;德文版本EN 14757-2015

Water quality - Sampling of fish with multi-mesh gillnets; German version EN 14757:2015

BS EN 14757:2015 水质.用多筛刺网的鱼类取样

Water quality. Sampling of fish with multi-mesh gillnets

EN 14757:2015 水的质量.鱼多网刺网采样

This European Standard specifies a method for the sampling of fish in lakes, using benthic multi-mesh gillnets and gives recommendations on sampling of fish with pelagic multi-mesh gillnets. The method provides a whole-lake estimate for species occurrence, quantitative relative fish abundance, biomass expressed as Catch Per Unit Effort (CPUE) and size structure of fish assemblages in temperate lakes. It also provides estimates that are comparable over time within a lake and between lakes. This European Standard specifies routines for sampling, data handling and reporting, and provides information on applications and further treatment of data. It also provides guidance for the sampling of fish for age and growth analyses. According to the principles of this standard other lentic water bodies can be sampled.

Water quality - Sampling of fish with multi-mesh gillnets

DIN EN 14962:2006 水质.鱼类抽样方法的范围和选择指南

Fish sampling with various methods can be used for assessment of fish populations in running waters (streams, rivers), lakes, reservoirs and coastal areas. This guidance standard method will provide guidance on selection of suitable methods and procedures to be used by trained persons in evaluating fish populationsfor the purpose of classification of ecological status.#,,#

Water quality - Guidance on the scope and selection of fish sampling methods English version of DIN EN 14962:2006-07

NF T90-366:2005 水质.使用多网眼刺网对鱼进行取样

Water quality - Sampling of fish with multi-mesh gillnets.

DIN EN 14757:2005 水质.用多眼加筋网对鱼进行取样

This European Standard describes a standardised method for sampling fish in lakes, using multi-mesh gillnets. The method provides a whole-lake estimate for species occurrence, quantitative relative fish abundance and biomass expressed as Catch Per Unit Effort (CPUE), and size structure of fish assemblages in temperate lakes. It also provides estimates, which are comparable over time within a lake and between lakes. This European Standard provides information on sampling routines, data handling and reporting, sampling of fish for age and growth analyses as well as applications and further treatment of data. Selected references in support of this European Standard are given in the Bibliography.

Water quality - Sampling of fish with multi-mesh gillnets; English version of DIN EN 14757

LST EN 14757-2005 水质 用多目刺网对鱼进行取样

Water quality - Sampling of fish with multi-mesh gillnets

BS EN 14757:2005 水质.用多筛刺网的鱼类取样

This European Standard describes a standardised method for sampling fish in lakes, using multi-mesh gillnets. The method provides a whole-lake estimate for species occurrence, quantitative relative fish abundance and biomass expressed as Catch Per Unit Effort (CPUE), and size structure of fish assemblages in temperate lakes. It also provides estimates, which are comparable over time within a lake and between lakes. This European Standard provides information on sampling routines, data handling and reporting, sampling of fish for age and growth analyses as well as applications and further treatment of data. Selected references in support of this European Standard are given in the Bibliography.

Water quality - Sampling of fish with multi-mesh gillnets

LST EN 14011-2004 水质-带电鱼类取样

Water quality - Sampling of fish with electricity

NS 9456-2004 水质 鲑鱼、海鳟和北极红点鲑的目视计数

Water quality Visual counting of salmon,seatrout and artic char

DIN EN 14011:2003 水质.电捕鱼取样

The document describes an electrofishing method to be used when catching fish for the purpose of characterising species richness, composition, abundance and age structure of a given fish community in rivers, lakes and coastal waters. The processing of samples covers taxonomic identification, counting, measurement of biological parameters (length, weight etc.) and examination of fish for external anomalies.

Water quality - Sampling of fish with electricity; German version EN 14011:2003

EN 14011:2003 水质.用电捕鱼取样

This European Standard provides sampling procedures with electricity procedures to be used by trained persons in evaluating fish communities in streams, rivers and littoral areas for the purpose of classification of ecological status. These procedures allow standardisation of sampling methods for descriptions of fish communities. The use of standardised methods is a critical requirement for the comparability of results. This European Standard describes an electric fishing method to be used when catching fish for the purpose of characterising composition, abundance and age structure of a given fish community. Sampling-related issues include obtaining permissions, concerns about endangered species, protective measures of importance for the user of the sampling apparatus and co-ordination of activities with other sampling programmes. The processing of samples covers taxonomic identification, counting, measurement of biologic parameters (length, weight etc.), and examination of fish for external anomalies.

Water quality - Sampling of fish with electricity

BS EN 14011:2003 水质 用电对鱼进行取样

This European Standard provides sampling procedures with electricity procedures to be used by trained persons in evaluating fish communities in streams, rivers and littoral areas for the purpose of classification of ecological status. These procedures allow standardisation of sampling methods for descriptions of fish communities. The use of standardised methods is a critical requirement for the comparability of results. This European Standard describes an electric fishing method to be used when catching fish for the purpose of characterising composition, abundance and age structure of a given fish community. Sampling-related issues include obtaining permissions, concerns about endangered species, protective measures of importance for the user of the sampling apparatus and co-ordination of activities with other sampling programmes. The processing of samples covers taxonomic identification, counting, measurement of biologic parameters (length, weight etc.), and examination of fish for external anomalies.

Water quality. Sampling of fish with electricity