9th European Congress of Malacological Societies

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Biomass-clearance rate relationships in freshwater bivalves – introduction of a distributed experimental research network

Biomass-clearance rate relationships in freshwater bivalves – introduction of a distributed experimental research network

Gregarová K., Atkinson C. , Zieritz A., Douda K. katerinagregarova@gmail.com Biofiltration by freshwater mussels is recognized as an important ecosystem service and is often used as a tool in the monitoring of water quality. The process of biofiltration and therefore, purification of water, can be quantified by measuring an organism’s clearance rate, sometimes also referred …

Evaluation of green algae Ettlia oleoabundans grown under different conditions as food source for freshwater bivalves

Evaluation of green algae Ettlia oleoabundans grown under different conditions as food source for freshwater bivalves

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Lamilla-Tamayo L.A., Barák V., Mohammadi M. , Escobar- Calderón J.F., Vodáková B., Douda K. lamilla_tamayo@af.czu.cz Microalgae cultivation plays a fundamental role in rearing filter-feeding organisms for marine and freshwater aquaculture. The produced algal biomass is mostly destined to supply the world demand for marine bivalves, with freshwater species having much less attention. From a nutritional …

Multilocus Molecular Phylogeny of Chondrina farinesii (Gastropoda, Pulmonata, Chondrinidae) in the Iberian Peninsula

Multilocus Molecular Phylogeny of Chondrina farinesii (Gastropoda, Pulmonata, Chondrinidae) in the Iberian Peninsula

Somoza-Valdeolmillos E., Gómez-Moliner B.J., Caro A., Chueca L.J., Martínez-Ortí A., Madeira M.J. eder.somoza@ehu.eus The genus Chondrina is distributed through the West of Eurasian continent. Currently, it includes 46 species of land snails, 33 of them living in the Iberian Peninsula being its main center of speciation.  The classification of the taxa included within C. farinesii …

Morphological and genetic variability within different populations of amphiboreal nudibranch species Onchidoris muricata

Morphological and genetic variability within different populations of amphiboreal nudibranch species Onchidoris muricata

Lisova E.D., Stanovova M.V., Ekimova I.A. nikitenkocatia@yandex.ru Nudibranch Onchidoris muricata (O.F. Muller, 1776) is a well-known widespread dorid species in the Northern Hemisphere. It is characterized by an oval body of white or whitish-yellow colors. The entire surface of the notum is abundantly covered with clavicular and rounded tubercles; rhinophores with two rhinotubercles are located …

What happens to small scale fisheries when new resources appeared: one case of north Patagonia Argentina

What happens to small scale fisheries when new resources appeared: one case of north Patagonia Argentina

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Zaidman P.C., Saldaño M. A., Barrera Fuenzalida E.A. pzaidman@cenpat-conicet.gob.ar Small-scale fisheries of the San Matías Gulf, North Patagonia Argentina, based on invertebrates share similar characteristics with other small-scale fisheries such as multi-gear and multispecies. Usually, fishers shift from one and another resource for several reasons, such as profit-earning capacity, depletion, or rise of new resources. …

Contour analysis in subtidal and intertidal populations of the mussel Mytilus edulis platensis d’ Orbigny, 1842

Contour analysis in subtidal and intertidal populations of the mussel Mytilus edulis platensis d’ Orbigny, 1842

Yuvero M.C., Lomovasky B., Giménez J mcelesteyuvero@gmail.com Outline shape in bivalves is a key character that provides information on life habits, and is related with endogenous (genetic and physiological) and exogenous (biotic and abiotic) factors. The mussel Mytilus edulis platensis d’ Orbigny, 1842 presents a wide distribution from Rio Grande do Sul (32° 2’S; 52°5’W), …

Oyster aquaculture and food safety: the microplastics problem

Oyster aquaculture and food safety: the microplastics problem

Yang L., Kawaguchi T., Fortunato H. helenaf@sci.hokudai.ac.jp Microplastics derived from anthropogenic pollution have become a major issue in today’s society. Available data points to their presence in all terrestrial and marine ecosystems. There is a growing body of literature documenting their presence in many organisms including humans where they may cause serious health problems. Sources …

Comparative morphology of the cnidosac and related structures in the nudibranch family Fionidae

Comparative morphology of the cnidosac and related structures in the nudibranch family Fionidae

Vorobyeva O.A., Mikhlina A.L., Malakhov V.V., Ekimova I.A. olgavorobyeva.95@gmail.com Nudibranchia is a large taxon of gastropod molluscs that has lost a shell and uses several alternative protection methods. For example, aeolid nudibranchs are well-known for their ability to obtain nematocysts from their prey (different species of Cnidaria), which they incorporate into the specific structures called …

Freshwater bivalves as reservoirs of multiresistant bacteria: the case of two endangered species (Margaritifera margaritifera and Potomida littoralis)

Freshwater bivalves as reservoirs of multiresistant bacteria: the case of two endangered species (Margaritifera margaritifera and Potomida littoralis)

Varandas S., Fernandes C., Ballen A., Teixeira A., Saavedra M.J. simonev@utad.pt Freshwater bivalves (FB), responsible for important functions and vital ecosystem services are sensitive to environmental changes, making them excellent bioindicators. The present study evaluated the dispersion of resistance to several classes of antimicrobials for the first time, simultaneously in freshwater mussels (Margaritifera margaritifera and …

Conservation and management of freshwater pearl mussel (Margaritifera margaritifera) and brown trout (Salmo trutta) populations in Portugal

Conservation and management of freshwater pearl mussel (Margaritifera margaritifera) and brown trout (Salmo trutta) populations in Portugal

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Teixeira A., Magalhães M.F., Oliveira J.M., Beja P., Lopes-Lima M., Nogueira J., Jesus J., Cortes R., Varandas S., Reis J., Rodrigues P., Pereira J., García Álvarez M., Fonseca C., Barros T., Ferreira E., Teixeira F., Miranda F., Cortez P., Fernandes C., Mesquita E., Pereira A.M., Teiga-Teixeira J., Froufe E., Sousa R. amilt@ipb.pt The project “Recovery …