Abstract:
:Understanding the pressures of fisheries on the ecosystem is crucial for effective management. Fishery removals, or catch, are composed of both landings and discards. However, the use of discards data in studies investigating the effect of the fishing pressures is sparse. Here, we explore the individual contribution of both these catch components to the overall pressure of fisheries on the ecosystem metrics. Using Irish observer data, we compare the linear relationship between several ecological metrics calculated for landings and discards with those of catch. Our results show that in fisheries with high discarding rates, discards can drive the fisheries' ecological fingerprint and highlight the need to rectify landings-based estimates to make them representative of those of catch in order to gain a robust picture of the impact of fisheries.
journal_name
Biol Lettjournal_title
Biology lettersauthors
Viana M,McNally L,Graham N,Reid DG,Jackson ALdoi
10.1098/rsbl.2013.0812subject
Has Abstractpub_date
2013-12-04 00:00:00pages
20130812issue
6eissn
1744-9561issn
1744-957Xpii
rsbl.2013.0812journal_volume
9pub_type
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