10.5061/DRYAD.BZKH1895K
Hiddink, Jan Geert
0000-0001-7114-830X
Bangor University
Kaiser, Michel
Bangor University
Sciberras, Marija
Bangor University
McConnaughey, Robert
National Marine Fisheries Service
Mazor, Tessa
CSIRO Ocean and Atmosphere
Hilborn, Ray
University of Washington
Collie, Jeremy
University of Rhode Island
Pitcher, C. Roland
CSIRO Ocean and Atmosphere
Parma, Ana
Centro Científico Tecnológico de Bahía Blanca
Suuronen, Petri
Natural Resources Institute Finland
Rijnsdorp, Adriaan
Wageningen University & Research
Jennings, Simon
International Council for the Exploration of the Sea
Selection of indicators for assessing and managing the impacts of bottom
trawling on seabed habitats
Dryad
dataset
2020
ecosystem approach to fisheries management
systematic review
Otter trawl
Beam trawl
scallop dredge
hydraulic dredge
European Commission
https://ror.org/00k4n6c32
BENTHIS (312088)
David and Lucile Packard Foundation
https://ror.org/032atxq54
Walton Family Foundation
https://ror.org/05yh4rh25
Food and Agriculture Organisation of the United Nations*
The Alaska Seafood Cooperative*
American Seafoods Group U.S.*
Blumar Seafoods Denmark*
Clearwater Seafoods*
Espersen Group*
Glacier Fish Company LLC U.S.*
Gorton’s Inc.*
Independent Fisheries Limited N.Z.*
Nippon Suisan (USA), Inc.*
Pacific Andes International Holdings, Ltd.*
Pesca Chile S.A.*
San Arawa, S.A.*
Sanford Ltd. N.Z.*
Sealord Group Ltd. N.Z.*
South African Trawling Association*
Trident Seafoods *
Food and Agriculture Organisation of the United Nations
The Alaska Seafood Cooperative
American Seafoods Group U.S.
Blumar Seafoods Denmark
Clearwater Seafoods
Espersen Group
Glacier Fish Company LLC U.S.
Gorton’s Inc.
Independent Fisheries Limited N.Z.
Nippon Suisan (USA), Inc.
Pacific Andes International Holdings, Ltd.
Pesca Chile S.A.
San Arawa, S.A.
Sanford Ltd. N.Z.
Sealord Group Ltd. N.Z.
South African Trawling Association
Trident Seafoods
2020-03-18T00:00:00Z
2020-03-18T00:00:00Z
en
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
1. Bottom-trawl fisheries are the most-widespread source of anthropogenic
physical disturbance to seabed habitats. Development of fisheries-,
conservation- and ecosystem-based management strategies requires the
selection of indicators of the impact of bottom trawling on the state of
benthic biota. Many indicators have been proposed, but no rigorous test of
a range of candidate indicators against 9 commonly-agreed criteria
(concreteness, theoretical basis, public awareness, cost, measurement,
historical data, sensitivity, responsiveness, specificity) has been
performed. 2. Here, we collated data from 41 studies that compared the
benthic biota in trawled areas with those in control locations (that were
either not trawled or trawled infrequently), examining 7 potential
indicators (numbers and biomass for individual taxa and whole communities,
evenness, Shannon-Wiener diversity and species richness) to assess their
performance against the set of 9 criteria. 3. The effects of trawling were
stronger on whole-community numbers and biomass than for individual taxa.
Species richness was also negatively affected by trawling but other
measures of diversity were not. Community numbers and biomass met all
criteria, taxa numbers and biomass and species richness satisfied a
majority of criteria, but evenness and Shannon-Wiener diversity did not
respond to trawling and only met few criteria, and hence are not suitable
state indicators of the effect of bottom trawling. 4. Synthesis and
application. An evaluation of each candidate indicator against a commonly
agreed suite of desirable properties coupled with the outputs of our
meta-analysis showed that whole-community numbers of individuals and
biomass are the most suitable indicators of trawling impacts as they
performed well on all criteria. Particular strengths of these indicators
are that they respond strongly to trawling, relate directly to ecosystem
functioning, and are straightforward to measure. Evenness and
Shannon-Wiener diversity are not responsive to trawling and unsuitable for
the monitoring and assessment of bottom trawl impacts.05-Mar-2020
Data were collated from published comparative studies of the effects of
bottom trawling on seabed habitat and biota following a systematic review
protocol, thereby including all available studies and avoiding selection
bias (Hughes et al., 2014). The methods were designed to identify and
collate evidence from comparative control-impact studies to identify
changes in state of benthic biota resulting from mobile bottom fishing.
The searching strategy is documented in Hughes et al. (2014), which
specifies the databases searched and search terms used in detail. Data
were collated from published comparative studies of the effects of bottom
trawling on seabed habitat and biota following a systematic review
protocol, thereby including all available studies and avoiding selection
bias (Hughes et al., 2014). This dataset gives the resulting data
collation for comparative-control impact studies. We collated data from 41
studies that compared the benthic biota in trawled areas with those in
control locations (that were either not trawled or trawled infrequently).