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Mesh-size matters in epibenthic surveys

Ruth Callaway, Simon Jennings, John Lancaster, John Cotter

Journal of the Marine Biological Association of the UK, Volume: 82, Issue: 1, Pages: 1 - 8

Swansea University Author: Ruth Callaway

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DOI (Published version): 10.1017/S002531540200512X

Abstract

This study aimed to identify the effects of different sieve mesh-sizes on processing time, the number of species retained, diversity measures and multivariate community analysis in the North Sea. Samples were collected at 63 sites throughout the North Sea and washed through two successive sieves, 10...

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Published in: Journal of the Marine Biological Association of the UK
ISSN: 0025-3154
Published: 2002
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URI: https://cronfa.swan.ac.uk/Record/cronfa13087
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spelling 2019-06-12T16:42:32.1897885 v2 13087 2012-10-16 Mesh-size matters in epibenthic surveys 61d7fe28cbb286de1c9c43f45014c490 Ruth Callaway Ruth Callaway true false 2012-10-16 FGSEN This study aimed to identify the effects of different sieve mesh-sizes on processing time, the number of species retained, diversity measures and multivariate community analysis in the North Sea. Samples were collected at 63 sites throughout the North Sea and washed through two successive sieves, 10-mm and 5-mm mesh respectively. Processing time for whole samples (5- and 10-mm fraction) averaged 91± 25 min compared with 55±16 min for the 10-mm mesh fraction. Altogether 40% of free-living species and 9% of attached species were recorded exclusively in the 5-mm fraction. The majority of these species were rare. Spatial gradients of species diversity and community structure were identical, independent of the mesh-size used. Multivariate community analysis showed no significant difference between descriptions of community structure based on fauna from 10-mm or 5-mm mesh. The use of coarser sieving mesh would save time and money, if the aims of an epibenthic survey were to describe broad patterns of community structure and relative diversity. It would be possible to process approximately 50% more samples, if the time saved with 10-mm mesh were allocated to additional sampling. However, if information on single species is required, then sorting with the finer sieve mesh will yield crucial information. It was decided to employ a 5-mm mesh for epibenthic monitoring of the North Sea. Journal Article Journal of the Marine Biological Association of the UK 82 1 1 8 0025-3154 15 2 2002 2002-02-15 10.1017/S002531540200512X http://journals.cambridge.org/download.php?file=%2F1829_A574E51B9D3D4D5391B5B78FD909DDAF_journals__MBI_MBI82_01_S002531540200512Xa.pdf&amp;cover=Y&amp;code=2ee9cd626e6cc0323a840b894cced959 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2019-06-12T16:42:32.1897885 2012-10-16T19:14:31.6790619 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Ruth Callaway 1 Simon Jennings 2 John Lancaster 3 John Cotter 4
title Mesh-size matters in epibenthic surveys
spellingShingle Mesh-size matters in epibenthic surveys
Ruth Callaway
title_short Mesh-size matters in epibenthic surveys
title_full Mesh-size matters in epibenthic surveys
title_fullStr Mesh-size matters in epibenthic surveys
title_full_unstemmed Mesh-size matters in epibenthic surveys
title_sort Mesh-size matters in epibenthic surveys
author_id_str_mv 61d7fe28cbb286de1c9c43f45014c490
author_id_fullname_str_mv 61d7fe28cbb286de1c9c43f45014c490_***_Ruth Callaway
author Ruth Callaway
author2 Ruth Callaway
Simon Jennings
John Lancaster
John Cotter
format Journal article
container_title Journal of the Marine Biological Association of the UK
container_volume 82
container_issue 1
container_start_page 1
publishDate 2002
institution Swansea University
issn 0025-3154
doi_str_mv 10.1017/S002531540200512X
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
url http://journals.cambridge.org/download.php?file=%2F1829_A574E51B9D3D4D5391B5B78FD909DDAF_journals__MBI_MBI82_01_S002531540200512Xa.pdf&amp;cover=Y&amp;code=2ee9cd626e6cc0323a840b894cced959
document_store_str 0
active_str 0
description This study aimed to identify the effects of different sieve mesh-sizes on processing time, the number of species retained, diversity measures and multivariate community analysis in the North Sea. Samples were collected at 63 sites throughout the North Sea and washed through two successive sieves, 10-mm and 5-mm mesh respectively. Processing time for whole samples (5- and 10-mm fraction) averaged 91± 25 min compared with 55±16 min for the 10-mm mesh fraction. Altogether 40% of free-living species and 9% of attached species were recorded exclusively in the 5-mm fraction. The majority of these species were rare. Spatial gradients of species diversity and community structure were identical, independent of the mesh-size used. Multivariate community analysis showed no significant difference between descriptions of community structure based on fauna from 10-mm or 5-mm mesh. The use of coarser sieving mesh would save time and money, if the aims of an epibenthic survey were to describe broad patterns of community structure and relative diversity. It would be possible to process approximately 50% more samples, if the time saved with 10-mm mesh were allocated to additional sampling. However, if information on single species is required, then sorting with the finer sieve mesh will yield crucial information. It was decided to employ a 5-mm mesh for epibenthic monitoring of the North Sea.
published_date 2002-02-15T03:14:59Z
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score 11.013148

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