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Event Abstract Back to Event Effects of harvesting on annelid assemblages associated with mussel beds Puri Veiga1*, Leandro Sampaio1, Catarina R. Oliveira1, Juan Moreira Da Rocha2, Jesus S. Troncoso3 and Marcos Rubal1 1 Interdisciplinary Center for Marine and Environmental Research, Abel Salazar Institute of Biomedical Sciences, University of Porto, Portugal 2 Autonomous University of Madrid, Spain 3 University of Vigo, Spain The mussel, Mytilus galloprovincialis Lamarck, 1819 is an ecologically and economically relevant species on European coasts. It is very abundant in the Atlantic intertidal fringe of the Iberian Peninsula where is harvested in natural systems and/or cultured intensively on rafts. Aquaculture production is dependent on their abundance in natural environments because juveniles are collected in rocky shores and then attached to ropes on rafts. Moreover, it provides habitat for many species, enhancing local biodiversity. The aim of this study was to explore effects of harvesting on the annelid assemblage associated with mussels. To achieve this, two rocky shores, where mussels are intensively harvested, were selected in Galicia (NW Iberian Peninsula). At each shore, two different sites were considered; at each site, 4 replicates (10x10cm) of harvested mussel clumps and 4 replicates of non-harvested clumps (control) were collected. Size and number of mussels at each replicate were compared between treatments (harvested-control). Moreover, annelids at each replicate were identified to species level. A total of 1351 individuals and 27 species were found. Abundance, taxon richness, Margalef index and assemblage composition were compared between treatments by means of univariate and multivariate techniques. Results pointed out that harvested clumps showed a lower and more homogenous mussel size than control clumps, as expected. Regarding annelids, the interaction between treatment and site was significant for the multivariate assemblage structure and for the total abundance. Therefore, the effect of harvesting is dependent on the spatial scale considered. Acknowledgements This research was developed under the Project No. 30181, co-financed by COMPETE 2020, Portugal 2020 and the European Union through the ERDF, and by FCT through national funds. Keywords: Mytilus galloprovincialis L., Harvesting, Annelids, Iberian Peninsula, Rocky shores Conference: XX Iberian Symposium on Marine Biology Studies (SIEBM XX) , Braga, Portugal, 9 Sep - 12 Sep, 2019. Presentation Type: Poster Presentation Topic: Ecology, Biodiversity and Vulnerable Ecosystems Citation: Veiga P, Sampaio L, Oliveira CR, Moreira Da Rocha J, Troncoso JS and Rubal M (2019). Effects of harvesting on annelid assemblages associated with mussel beds. Front. Mar. Sci. Conference Abstract: XX Iberian Symposium on Marine Biology Studies (SIEBM XX) . doi: 10.3389/conf.fmars.2019.08.00078 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: 13 May 2019; Published Online: 27 Sep 2019. * Correspondence: Mx. Puri Veiga, Interdisciplinary Center for Marine and Environmental Research, Abel Salazar Institute of Biomedical Sciences, University of Porto, Matosinhos, 4450-208, Portugal, puri.sanchez@fc.up.pt 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 Puri Veiga Leandro Sampaio Catarina R Oliveira Juan Moreira Da Rocha Jesus S Troncoso Marcos Rubal Google Puri Veiga Leandro Sampaio Catarina R Oliveira Juan Moreira Da Rocha Jesus S Troncoso Marcos Rubal Google Scholar Puri Veiga Leandro Sampaio Catarina R Oliveira Juan Moreira Da Rocha Jesus S Troncoso Marcos Rubal PubMed Puri Veiga Leandro Sampaio Catarina R Oliveira Juan Moreira Da Rocha Jesus S Troncoso Marcos Rubal 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.

Event Abstract Back to Event Are mussel attributes shaped by urbanisation? Puri Veiga1*, Catarina R. Oliveira1, Leandro Sampaio1 and Marcos Rubal1 1 Interdisciplinary Center for Marine and Environmental Research, Abel Salazar Institute of Biomedical Sciences, University of Porto, Portugal Urbanization and coastal development promote intense changes in marine ecosystems that jeopardize their ability to provide services, such as provisioning of food and other resources. The aim of this study was to explore the effects of urbanisation on different attributes of the mussel Mytilus galloprovincialis Lamarck, 1819 in the Northern Portuguese coast: This species is harvested in natural systems as well as cultured on ropes suspended from rafts. Since mussel farming involves the capture of very large amounts of young wild mussels from rocky substrates to supply floating rafts, it is interesting to evaluate if urbanisation shapes the density, percentage of cover, depth of clumps, size-frequency distribution and condition index of M. galloprovincialis. To achieve this, a fully nested hierarchical sampling design was follow. Two conditions (urbanised and non-urbanised) were considered. At each condition, three different rocky shores were selected and two sites per shore were haphazardly chosen for the study of the different mussel attributes. Results pointed out that mussel density was significantly lower at urban shores. In terms of size, the abundance of mussels included in higher size classes was larger at urbanised than at non-urbanised shores. Moreover, percentage of cover, depth of clumps and condition index showed significant variability at different spatial scales. Acknowledgements This research was developed under the Project No. 30181, co-financed by COMPETE 2020, Portugal 2020 and the European Union through the ERDF, and by FCT through national funds Keywords: urbanisation, Mytilus galloprovincialis L., Iberian Peninsula, Rocky shores, Hierarchical sampling design Conference: XX Iberian Symposium on Marine Biology Studies (SIEBM XX) , Braga, Portugal, 9 Sep - 12 Sep, 2019. Presentation Type: Poster Presentation Topic: Ecology, Biodiversity and Vulnerable Ecosystems Citation: Veiga P, Oliveira CR, Sampaio L and Rubal M (2019). Are mussel attributes shaped by urbanisation?. Front. Mar. Sci. Conference Abstract: XX Iberian Symposium on Marine Biology Studies (SIEBM XX) . doi: 10.3389/conf.fmars.2019.08.00148 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: 04 Jun 2019; Published Online: 27 Sep 2019. * Correspondence: Mx. Puri Veiga, Interdisciplinary Center for Marine and Environmental Research, Abel Salazar Institute of Biomedical Sciences, University of Porto, Matosinhos, 4450-208, Portugal, puri.sanchez@fc.up.pt 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 Puri Veiga Catarina R Oliveira Leandro Sampaio Marcos Rubal Google Puri Veiga Catarina R Oliveira Leandro Sampaio Marcos Rubal Google Scholar Puri Veiga Catarina R Oliveira Leandro Sampaio Marcos Rubal PubMed Puri Veiga Catarina R Oliveira Leandro Sampaio Marcos Rubal 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.

An overview of small-scale fisheries in the Northern Portuguese coast

Event Abstract Back to Event Effects of Salinity Challenge on Ion Regulation in Early and Late Upstream Migrating Sea Lamprey, Petromyzon marinus. Diogo Ferreira-Martins1, 2*, Stephen D. McCormick3, João Coimbra1, 2 and Jonathan M. Wilson1, 4* 1 Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Portugal 2 Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Portugal 3 Conte Anadromous Fish Research Center, USGS, United States 4 Wilfrid Laurier University, Canada The sea lamprey, Petromyzon marinus, is an anadromous species in which the adults re-enter freshwater, and migrate upstream for terminal spawning. A reduction in salinity tolerance has been document in migrants although the underlying mechanisms have not been characterized. The aim of this study was to determine the capacity for marine osmoregulation in late, upstream migrants by characterizing the morphological and physiological effects of salinity challenge from a molecular perspective. For this two experiments were performed using early and late upstream migrants. Animals salinity limited was found to be 17.5‰ for late upstream migrants, thought some early migrants were able to perform at 24‰. A number of relevant blood and intestinal parameters were measured to assess ionoregulatory and biochemical changes as well as the expression of key ion-transport related proteins by immunoblotting (IB) [Na+/K+-ATPase (NKA), vacuolar-type H+-ATPase, carbonic anhydrase, and Na+:K+:2Cl-contransporter]. NKA activity was also measured, in addition to oxidative stress indicators. The Na+ and Cl- levels with plasma and intestinal fluid were quantified and it was found that in non performing animals these fluids approached environmental concentrations (osmoconforming and failure of drinking mechanism, respectively). A drop in hematocrit was also observed with plasma lactate indicating hemolytic anemia. Plasma [ALT], GST activity and [GSH] were used to assess oxidative damage to tissues. An increase in Na+/K+-ATPase activity in mid-intestine in late migrants and posterior intestine in early migrates showed a potentially adaptive ionoregulatory response to salinity increase. (FCT grant PTDC/MAR/98035/2008). Keywords: Seawater acclimation, Spawning Migration, Ionoregulation, osmoregulation, osmotic stress Conference: XV European Congress of Ichthyology, Porto, Portugal, 7 Sep - 11 Sep, 2015. Presentation Type: Oral Presentation Topic: Physiology, Behavior and Toxicology Citation: Ferreira-Martins D, McCormick SD, Coimbra J and Wilson JM (2015). Effects of Salinity Challenge on Ion Regulation in Early and Late Upstream Migrating Sea Lamprey, Petromyzon marinus.. Front. Mar. Sci. Conference Abstract: XV European Congress of Ichthyology. doi: 10.3389/conf.fmars.2015.03.00018 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: 23 Oct 2015; Published Online: 04 Nov 2015. * Correspondence: Dr. Diogo Ferreira-Martins, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, 4050-123, Portugal, diogofmartins14@gmail.com Prof. Jonathan M Wilson, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, 4050-123, Portugal, wilson.jm.cimar@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 Diogo Ferreira-Martins Stephen D McCormick João Coimbra Jonathan M Wilson Google Diogo Ferreira-Martins Stephen D McCormick João Coimbra Jonathan M Wilson Google Scholar Diogo Ferreira-Martins Stephen D McCormick João Coimbra Jonathan M Wilson PubMed Diogo Ferreira-Martins Stephen D McCormick João Coimbra Jonathan M Wilson 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.

Event Abstract Back to Event Co-engineering in mussel beds. First results on north of Portugal Ana Catarina Torres1, 2*, Marcos Rubal1, 2, Isabel Sousa Pinto1, 2 and Puri Veiga1, 2 1 Departament of Biology, Faculty of Sciences, University of Porto, Portugal 2 Interdisciplinary Center for Marine and Environmental Research, Abel Salazar Institute of Biomedical Sciences, University of Porto, Portugal When spatial distribution of species overlaps, different kinds of interaction between organisms are possible (e.g. predation, competition). Sometimes, different species live on a very close relationship even as epibionts. This is the case of some macroalgal species which live as epiphytes above mussel beds. Specifically, in the intertidal zone of the north of Portugal, red algae of the genus Caulacanthus occasionally live above mussel beds of Mytilus galloprovincialis Lamarck, 1819. Both algae and mussels are recognized as ecosystem engineers, since these organisms, due to their morphology, activity and/or their life-style, provide habitats for many species. Although the role of mussels and algae as ecosystem engineers has often been analysed separately, few studies have still explored the effect of co-engineering due to these two groups of organisms together. The objective of our study is to explore how the presence of Caulacanthus spp. as co-engineer on M. galloprovincialis beds can affect their associated macrofauna. For this, two sites were selected from a rocky shore in the north of Portugal and at each site, five quadrat (10x10cm) replicates of mussels with and without alga were collected. Univariate analyses were done to explore differences between the abundance and diversity of the fauna, as well as the most abundant taxa. Moreover, a multivariate analysis considering the whole structure of assemblage was done. Results showed that the presence of Caulacanthus, as co-engineer on mussel beds, did not affect the total abundance and diversity of the associated fauna with M. galloprovincialis. However, the abundance of crustaceans and molluscs increased when the alga was present. Within crustaceans, amphipods were the taxa, which most likely benefited from the presence of the alga, since their abundance doubled when the algae is present. Finally, considering the entire assemblage structure, the multivariate analysis showed marginal significant differences between macrofauna on mussels with and without alga. Overall, we can conclude that Caulacanthus spp. as co-engineer of M. galloprovincialis, did not showed an important effect on mussels’ associated fauna, although molluscs and crustaceans seemed to be positively affected by the presence of this alga. Acknowledgements This research was developed under the Project No. 30181, co-financed by COMPETE 2020, Portugal 2020 and the European Union through the ERDF, and by FCT through national funds. PhD grant: SFRH/BD/114935/2016 by FCT Keywords: Co-engineer, Caulacanthus spp., mytilus galloprovincialis, Associated macrofauna, North of Portugal Conference: XX Iberian Symposium on Marine Biology Studies (SIEBM XX) , Braga, Portugal, 9 Sep - 12 Sep, 2019. Presentation Type: Poster Presentation Topic: Ecology, Biodiversity and Vulnerable Ecosystems Citation: Torres A, Rubal M, Sousa Pinto I and Veiga P (2019). Co-engineering in mussel beds. First results on north of Portugal. Front. Mar. Sci. Conference Abstract: XX Iberian Symposium on Marine Biology Studies (SIEBM XX) . doi: 10.3389/conf.fmars.2019.08.00125 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: 07 Jun 2019; Published Online: 27 Sep 2019. * Correspondence: Miss. Ana Catarina Torres, Departament of Biology, Faculty of Sciences, University of Porto, Porto, Portugal, a_catarina_torres@hotmail.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 Ana Catarina Torres Marcos Rubal Isabel Sousa Pinto Puri Veiga Google Ana Catarina Torres Marcos Rubal Isabel Sousa Pinto Puri Veiga Google Scholar Ana Catarina Torres Marcos Rubal Isabel Sousa Pinto Puri Veiga PubMed Ana Catarina Torres Marcos Rubal Isabel Sousa Pinto Puri Veiga 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.

Spatial and seasonal dynamics of zooplankton assemblages in the Douro Estuary

"Scientists of the Sea": an environmental education project promoting scientific literacy

Current state of research on the systematics and zoogeography of graylings (Thymallus) throughout the world, with notes on the recent advances and applications of genomics.