Anchovy Engraulis encrasicolus diet in the North and Baltic Seas |
| |
| Authors: | K Raab LAJ Nagelkerke C Boerée AD Rijnsdorp A Temming M Dickey-Collas |
| |
| Institution: | 1. Laboratoire des Sciences de l''Environnement Marin LEMAR-UMR6539, Institut Universitaire Européen de la Mer, Université de Bretagne Occidentale, Place Copernic, Technopôle Brest-Iroise, 29280 Plouzané, France;2. Ifremer, UMR 6539 LEMAR, 11 presqu’île du Vivier, 29840 Argenton, Landunvez, France;3. Ifremer, Laboratoire Phycotoxines, rue de l’Ile d’Yeu, BP 21105, F-44311 Nantes, France;4. Université Européenne de Bretagne, Université de Brest; UMR 6205 Laboratoire de Mathématiques; 6 avenue Le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France;5. MARATEC–Marine, Environment and Technology Center, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais 1, 1049-001 Lisboa, Portugal;6. School of Chemistry, University of Wollongong, NSW 2522, Australia;1. Instituto de Fomento Pesquero (IFOP), Blanco 839, Valparaíso, Chile;2. Departamento de Estadística, Facultad de Ciencias, Universidad del Bío-Bío, Concepción, Chile;3. Laboratorio de Ictioplancton (LABITI), Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Viña del Mar, Chile;4. Centro de Observación Marina para Estudios de Riesgo del Ambiente Costero (COSTA-R), Universidad de Valparaíso, Viña del Mar, Chile;1. Department of Earth and Marine Science, Laboratory of Ecology, University of Palermo, Viale delle Scienze Ed. 16, 90128 Palermo, Italy;2. Fisheries & Conservation Science Group, School of Ocean Sciences, 328 Westbury Mount, Bangor University, Menai Bridge, Anglesey LL59 5AB, UK;1. Centro de Oceanografia, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal;2. Tufts University, Department of Biology, 200 Boston Ave, Medford, MA 02144, USA;3. Université du Littoral côte d''opale, FRE 2816 ELICO, avenue Foch, 62930 Wimereux, France |
| |
| Abstract: | The diet of anchovy (Engraulis encrasicolus) in the North and Baltic Seas was studied using stomach analysis from four sampling events in different areas. Zooplanktivory was confirmed; the most frequent prey items (in over 40% of stomachs) were copepods, malacostracan larvae and fish larvae. In the Baltic Sea, Paracalanus spp. and Pseudocalanus spp. were important in relative terms; in the German Bight, Temora spp. dominated the stomach contents. Relative abundances of prey items varied with area more than absolute abundance or presence absence of items. Moreover, the level of resolution of prey categories influenced which prey categories were considered to be most important in driving variability in stomach content. Anchovy diet is broad across the seasons, years and areas sampled, suggesting that it is not a specialist feeder in the North Sea. The similarity of diet between anchovy and other clupeids, as well as anchovy consumption of larval fish, makes the new increased anchovy population a potential intraguild predator of commercial species like herring. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
