Download
fmars-04-00350.pdf 2,29MB
WeightNameValue
1000 Titel
  • Deep-Sea Mega-Epibenthic Assemblages from the SW Portuguese Margin (NE Atlantic) Subjected to Bottom-Trawling Fisheries
1000 Autor/in
  1. Ramalho, Sofia P. |
  2. Lins, Lidia |
  3. Bueno-Pardo, Juan |
  4. Cordova, Eliana A. |
  5. Amisi, Joel M. |
  6. Lampadariou, Nikolaos |
  7. Vanreusel, Ann |
  8. Cunha, Marina R. |
1000 Erscheinungsjahr 2017
1000 LeibnizOpen
1000 Art der Datei
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2017-11-14
1000 Erschienen in
1000 Quellenangabe
  • 4:350
1000 FRL-Sammlung
1000 Copyrightjahr
  • 2017
1000 Lizenz
1000 Verlagsversion
  • https://doi.org/10.3389/fmars.2017.00350 |
1000 Ergänzendes Material
  • https://www.frontiersin.org/articles/10.3389/fmars.2017.00350/full#h10 |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • Bottom-trawling fisheries are a common threat to the health of continental margins worldwide. Together with numerous environmental and biological processes, physical disturbance induced by trawlers can largely shape the benthic habitats and their associated assemblages. At the SW Portuguese Margin, crustacean bottom trawlers have exploited deep-sea habitats for a few decades, but its effects on the benthic biodiversity are practically unknown. During the spring-summer of 2013 and 2014, several Remotely Operated Vehicle (ROV) video transects were used to investigate mega-epibenthic abundance, composition, and diversity in soft-sediment areas subjected to varying trawling pressures off Sines and Setúbal (200–800 m). Differences in mega-epibenthic assemblages were linked with environmental changes (depth, grain size, primary productivity) and trawling disturbance. The effect of trawling was assessed between segments with similar habitat characteristics, i.e., muddy-sand bottoms between 300 and 500 m. Areas subjected to intensive trawling pressure showed a generally flattened seabed, with abundant recent trawl marks (up to 3 scars.100 m−1), indicating that the seabed physical integrity was compromised. Significant negative correlations were detected between various mega-epibenthic diversity indices [S, H′, and ET(20)] and trawling pressure (h.cell−1.y−1). Furthermore, the distinct mega-epibenthic assemblages and absence of several sessile erect morphospecies at both low and highly disturbed locations by trawling off Sines, namely all seapen morphospecies found in non-trawled areas, demonstrates the negative influence of trawling fisheries on the benthic component of the study area. Also, low dissimilarity between assemblages from the main fishing grounds and the adjacent low-disturbance locations, suggests that the potentially negative influence of trawling can extend beyond the targeted areas (e.g., by the plumes of re-suspended sediments). The observed deleterious effects of trawling on mega-epibenthic fauna together with the intensification of trawling pressure in the study area, stress the need for adequate monitoring programs and regulatory measures to halt the long-term loss of biodiversity and allow the sustainability of fisheries at the SW Portuguese Margin.
1000 Sacherschließung
lokal sediment composition
lokal disturbance
lokal diversity
lokal mega-epifauna
lokal deep sea
lokal West Iberian Margin
lokal trawling
1000 Fachgruppe
  1. Umweltwissenschaften |
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
  1. https://frl.publisso.de/adhoc/creator/UmFtYWxobywgU29maWEgUC4=|http://orcid.org/0000-0003-2001-3717|https://frl.publisso.de/adhoc/creator/QnVlbm8tUGFyZG8sIEp1YW4=|https://frl.publisso.de/adhoc/creator/Q29yZG92YSwgRWxpYW5hIEEu|https://frl.publisso.de/adhoc/creator/QW1pc2ksIEpvZWwgTS4=|https://frl.publisso.de/adhoc/creator/TGFtcGFkYXJpb3UsIE5pa29sYW9z|https://frl.publisso.de/adhoc/creator/VmFucmV1c2VsLCBBbm4=|https://frl.publisso.de/adhoc/creator/Q3VuaGEsIE1hcmluYSBSLg==
1000 Label
1000 Förderer
  1. Centre for Environmental and Marine Studies (CESAM)
  2. Portuguese National Foundation for Science and Technology (FCT/MEC)
  3. European Union (EU)
  4. University of Ghent
  5. Calouste Gulbenkian Foundation
1000 Fördernummer
  1. UID/AMB/50017
  2. -
  3. -; FPA 2011-0016
  4. 12/DOS/006; BEX 11595/13-2
  5. BPD/UI88/6454/2014
1000 Förderprogramm
  1. -
  2. -
  3. FEDER, within the PT2020 Partnership Agreement and Compete 2020; MARES Joint Doctorate programme selected under Erasmus Mundus coordinated by Ghent University
  4. BOF; CAPES
  5. project “The Economic Valuation and Governance of Marine and Coastal Ecosystem Services” (MCES)
1000 Dateien
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6408543.rdf
1000 Erstellt am 2018-06-25T15:08:12.563+0200
1000 Erstellt von 270
1000 beschreibt frl:6408543
1000 Bearbeitet von 122
1000 Zuletzt bearbeitet Fri Jan 31 00:12:10 CET 2020
1000 Objekt bearb. Mon Jun 25 15:17:46 CEST 2018
1000 Vgl. frl:6408543
1000 Oai Id
  1. oai:frl.publisso.de:frl:6408543 |
1000 Sichtbarkeit Metadaten public
1000 Sichtbarkeit Daten public
1000 Gegenstand von

View source