Please use this identifier to cite or link to this item:
http://hdl.handle.net/10261/17761
Share/Export:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Title: | Trophic ecology of the swimming crab Polybius henslowii Leach, 1820 in Galician and Cantabrian Seas: Influences of natural variability and the Prestige oil spill |
Authors: | Signa, G. CSIC ORCID; Cartes, Joan Enric CSIC ORCID ; Solé, Montserrat CSIC ORCID ; Serrano, Alberto; Sánchez, Francisco | Keywords: | Portunid crab Prestige Stomach content Upwelling NAO Biomarkers Spain Galicia |
Issue Date: | Nov-2008 | Publisher: | Elsevier | Citation: | Continental Shelf Research 28(19): 2659-2667 (2008) | Abstract: | Diet and feeding intensity of the portunid crab Polybius henslowii were studied during the spring of 2004 along Galician and Cantabrian continental shelves (NW Iberian Peninsula) between 78 and 287 m. The area had been affected by the Prestige oil spill in November 2002, with different sectors at different levels of pollution: highest in between Miño River and Cape Finisterre (MF) and from there to Estaca de Bares Point (FE) and lowest from Estaca to Cape Peñas (EP). From 37272 specimens collected in 59 bottom hauls, 342 were analysed for stomach fullness and diet composition. Stomach fullness was lower in FE, but with no significant differences among sectors. Diet was a mixture of pelagic and benthic prey: cephalopods (Ilex coindetti), brachyurans (P. henslowii) and polychaetes (Glycera sp.). Other prey were beloniform eggs and fish remains. Two stress markers were also studied in some specimens: Acetylcholinesterase (a neurotoxicity marker) varied among sampled areas, while lipid peroxidation (an oxidative stress marker) did not. Changes in trophic variables, distribution and density were analysed in relation to depth, surface and bottom T, surface Chl a from satellite imagery and tar aggregate concentration in sediments. Along Galician and Cantabrian coasts prey availability, linked to productivity level, seems to be the main factor affecting P. henslowii diet and distribution. Interannual abundance variability seems to be controlled by large-scale climatic conditions (NAO index). This natural variability masks possible effects induced by the oil spill. | Description: | 9 pages, 9 figures, 2 tables.-- Printed version published Nov 15, 2008. | Publisher version (URL): | https://doi.org/10.1016/j.csr.2008.08.008 | URI: | http://hdl.handle.net/10261/17761 | DOI: | 10.1016/j.csr.2008.08.008 | ISSN: | 0278-4343 |
Appears in Collections: | (ICM) Artículos |
Show full item record
CORE Recommender
SCOPUSTM
Citations
32
checked on Apr 18, 2024
WEB OF SCIENCETM
Citations
31
checked on Feb 20, 2024
Page view(s)
340
checked on Apr 24, 2024
Google ScholarTM
Check
Altmetric
Altmetric
WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.