Consumption and feeding preference of Paracentrotus lividus (Echinodermata: Echinoidea) on native and non-native macroalgae from northern west coast of Iberia

Abstract

Event Abstract Back to Event Consumption and feeding preference of Paracentrotus lividus (Echinodermata: Echinoidea) on native and non-native macroalgae from northern west coast of Iberia André C. Cardoso1*, João N. Franco1, 2, Isabel Sousa-Pinto1, 2 and Francisco Arenas2 1 Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Portugal 2 Centro Interdisciplinar de Pesquisa Marine e Ambiental (CIIMAR), Portugal Herbivory plays a major role in driving patterns of abundance and distribution of primary producers in all systems, including lakes, forests, kelp forests and coral reefs. This biotic interaction exerts a strong control on seaweeds communities of most shallow rocky marine coasts where herbivores such as gastropods and sea urchins play a major role. Using a mesocosm experimental approach we investigate the consumption and feeding preference of one of the most abundant macrograzer species in the Portuguese coast, the Paracentrotus lividus, over different seaweed species occurring on the northern west coast of Iberia. Specifically, we determined the algal biomass consumption and preference by P. lividus on three brown algae: Laminaria ochroleuca, Saccorhiza polyschides and the invasive Undaria pinnatifida and three red algae: Chondrus crispus, Mastocarpus stellatus and the invasive Grateloupia turuturu. Macroalgae nutrient content (carbon and nitrogen), texture and chemical deterrents (polyphenolic content) was also examined and correlated with food preferences. Despite the high variability of algal consumption by P. lividus, our results suggest that among the studied seaweeds this grazer prefer native seghaweeds rather invasive seaweeds, suggesting that non-native seaweeds likely are not under eminent pressure by P. lividus at least in the area of study. References Franco, J., Wernberg, T., Bertocci, I., Duarte, P., Jacinto, D., Vasco-Rodrigues, N., & Tuya, F. (2015). Herbivory drives kelp recruits into ‗hiding‘in a warm ocean climate. Mar Ecol Prog Ser, 536, 1-9. Cacabelos, E., Olabarria, C., Incera, M., & Troncoso, J. S. (2010). Do grazers prefer invasive seaweeds?. Journal of Experimental Marine Biology and Ecology, 393(1), 182-187. Gestoso, I., Olabarria, C., & Troncoso, J. S. (2010). Variability of epifaunal assemblages associated with native and invasive macroalgae. Marine and Freshwater Research, 61(6), 724-731. Keywords: grazing, Herbivory, sea urchin, seaweeds, Kelps Conference: IMMR'18 | International Meeting on Marine Research 2018, Peniche, Portugal, 5 Jul - 6 Jul, 2018. Presentation Type: Poster Presentation Topic: Biodiversity, Conservation and Coastal Management Citation: Cardoso A, Franco J, Sousa-Pinto I and Arenas F (2019). Consumption and feeding preference of Paracentrotus lividus (Echinodermata: Echinoidea) on native and non-native macroalgae from northern west coast of Iberia. Front. Mar. Sci. Conference Abstract: IMMR'18 | International Meeting on Marine Research 2018. doi: 10.3389/conf.FMARS.2018.06.00018 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 06 May 2018; Published Online: 07 Jan 2019. * Correspondence: Dr. André C. Cardoso, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal, andrecoutocardoso@gmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers André C. Cardoso João N. Franco Isabel Sousa-Pinto Francisco Arenas Google André C. Cardoso João N. Franco Isabel Sousa-Pinto Francisco Arenas Google Scholar André C. Cardoso João N. Franco Isabel Sousa-Pinto Francisco Arenas PubMed André C. Cardoso João N. Franco Isabel Sousa-Pinto Francisco Arenas Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.