Please use this identifier to cite or link to this item:
Files in This Item:
File SizeFormat 
macrozooplankton predation.pdf662,05 kBAdobe PDFView/Open
Title: Macrozooplankton predation impact on anchovy (Engraulis encrasicolus) eggs mortality at the Bay of Biscay shelf break spawning centre
Authors: Albaina, Aitor; Irigoien, Xabier; Aldalur, Unai; Boyra, Guillermo; Santos, Maria; Estonba, Andone
Citation: ICES JOURNAL OF MARINE SCIENCE, 2015, 72, 1370-1379
Abstract: A real-time PCR based method involving a species-specific probe was applied to detect Engraulis encrasicolus eggs predation by the macrozooplankton community during the 2011 spawning season. Three locations along the shelf break presenting contrasting but high prey densities were sampled. A total of 840 individuals from 38 taxa of potential macrozooplankton predators were assayed for E. encrasicolus DNA presence and 27 presented at least one positive signal. Carnivorous copepods were responsible for the most predation events (66\%) followed by euphausiids (16\%), chaetognaths (5\%), and myctophid fish (4\%). Macrozooplankton predation on anchovy eggs followed a type-I functional response with daily mortalities <4\% of available prey abundance suggesting a negligible impact on the species recruitment at the shelf break spawning centre.
Keywords: Bay of Biscay; DNA; Engraulis encrasicolus; macrozooplankton; molecular assay; predator-prey interactions; SARDINE SARDINA-PILCHARDUS; DIEL VERTICAL MIGRATION; FISH; ENVIRONMENT; ZOOPLANKTON; POPULATION; PATTERNS; SURVIVAL; COPEPODS; PACIFIC
Issue Date: 2015
Type: Article
Language: English
DOI: 10.1093/icesjms/fsu205
ISSN: 1054-3139
E-ISSN: 1095-9289
Funder: project ECOGENBAY - Ministry of Science and Research of the Government of Spain \[MICINN CTM2009-13570-C02-02]
project BIOMAN - Department of Economic Development and Competitiveness of the Basque Government
European Commission
Appears in Publication types:Artículos científicos

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.