Manuscript + Figure captions Click here to download Manuscript Eledone cirrhosa diet.docx Click here to view linked References 1 Factors affecting the feeding patterns of the horned octopus ( Eledone 2 cirrhosa ) in Atlantic Iberian waters 3 4 M. Regueira 1,2* , Á.Guerra 1, C.M. Fernández-Jardón 3,Á.F. González 1 5 6 1Instituto de Investigaciones Marinas (IIM-CSIC), Eduardo Cabello 6, 36208 Vigo, Spain. 7 2Departamento de Biologia, Universidade de Aveiro. 3810-193 Aveiro, Portugal. 8 3Facultad de Ciencias Económicas y Empresariales, Departamento de Economía Aplicada, Universidad 9 de Vigo, Campus de Vigo. 36310, Vigo, Spain. 10 11 12 *Corresponding author:
[email protected] 13 Tel. (+34) 986 23 19 30 14 Fax. (+34) 986 29 27 62 15 16 17 RUNNING TITLE: Feeding patterns of Eledone cirrhosa 18 KEY WORDS: Cephalopods, Eledone cirrhosa , diet, feeding patterns, Atlantic Iberian waters, 19 Multinomial Logistic Regression. 1 20 Abstract The present study combines morphological and molecular analysis of stomach contents 21 (n=2,355) and Multinomial Logistic Regression (MLR) to understand the diet and feeding patterns of the 22 horned octopus Eledone cirrhosa inhabiting Atlantic Iberian waters. Specimens were collected monthly 23 from commercial bottom trawl fisheries between February 2009 and February 2011 in three fishing 24 grounds (North Galicia, West Galicia and North Portugal), located between 40.6 -43. 6°N and 8.6 -7.36°W. 25 Based on stomach analysis, horned octopuses in the region consumed mainly crustaceans, followed by 26 teleost fish, echinoderms, molluscs and polychaetes. Molecular analysis of 14 stomach contents 27 confirmed the visual identification of pre y items as well as cannibalistic events.