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  • 151.
    Volkova, Kristina
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology. Örebro University.
    Caspillo, Nasim Reyhanian
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology. Örebro University.
    Porseryd, Tove
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Hallgren, Stefan
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology.
    Dinnétz, Patrik
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Porsch-Hällström, Inger
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology.
    Developmental exposure of zebrafish (Danio rerio) to 17α-Ethinylestradiol affects non-reproductive behavior and fertility as adults, and increases anxiety in unexposed progeny2015In: Hormones and Behavior, ISSN 0018-506X, E-ISSN 1095-6867, Vol. 73, p. 30-38Article in journal (Refereed)
    Abstract [en]

    Exposure to estrogenic endocrine disruptors (EDCs) during of development affects fertility, reproductive and non-reproductive behavior in mammals and fish. These effects can also be transferred to coming generations. In fish, the effects of developmental EDC exposure on non-reproductive behavior is less well studied. Here, we analyze the effects of 17α-Ethinylestradiol (EE2) on anxiety, shoaling behavior and fertility in zebrafish after developmental treatment and remediation in clean water until adulthood. Zebrafish embryos were exposed from day 1 to day 80 post fertilization to actual concentrations of 1.2 and 1.6ng/L EE2. After remediation for 82days non-reproductive behavior and fertilization success were analyzed in both sexes. Males and females from the 1.2ng/L group, as well as control males and females, were bred, and behavior of the untreated F1 offspring was tested as adults. Developmental treatment with 1.2 and 1.6ng/L EE2 significantly increased anxiety in the Novel Tank test and increased shoaling intensity in both sexes. Fertilization success was significantly reduced by EE2 in both sexes when mated with untreated fish of opposite sex. Progeny of fish treated with 1.2ng/L EE2 showed increased anxiety in the Novel tank test and increased light avoidance in the Scototaxis test compared to control offspring. In conclusion, developmental exposure of zebrafish to low doses of EE2 resulted in persistent changes in behavior and fertility. The behavior of unexposed progeny were affected by their parents' exposure, which might suggest transgenerational effects.

  • 152.
    Volkova, Kristina
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology. Örebro University.
    Reyhanian Caspillo, Nasim
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology. Örebro university.
    Porseryd, Tove
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Hallgren, Stefan
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies. Uppsala university.
    Dinnetz, Patrik
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Olsén, Håkan
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology.
    Porsch Hällström, Inger
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Biology.
    Transgenerational effects of 17α-Ethinyl Estradiol on anxiety behavior in the guppy, Poecilia reticulata2015In: General and Comparative Endocrinology, ISSN 0016-6480, E-ISSN 1095-6840, Vol. 223, p. 66-72Article in journal (Refereed)
  • 153.
    Warnock, J.P.
    et al.
    University of Pennsylvania, Indiana, PA, USA.
    Bauersachs, T.
    Christian-Albrechts-University, Kiel, Germany.
    Kotthoff, U.
    University of Hamburg, Hamburg, Germany.
    Brandt, H.-T.
    University of Hamburg, Hamburg, Germany.
    Andrén, Elinor
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Holocene environmental history of the Ångermanälven Estuary, northern Baltic Sea2018In: Boreas, ISSN 0300-9483, E-ISSN 1502-3885, Vol. 47, no 2, p. 593-608Article in journal (Refereed)
    Abstract [en]

    The Baltic Sea has experienced a complex geological history, with notable swings in salinity driven by changes to its connection with the Atlantic and glacio-isostatic rebound. Sediments obtained during International Ocean Drilling Program Expedition 347 allow the study of the effects of these changes on the ecology of the Baltic in high resolution through the Holocene in areas where continuous records had not always been available. Sites M0061 and M0062, drilled in the Ångermanälven Estuary (northern Baltic Sea), contain records of Holocene-aged sediments and microfossils. Here we present detailed records of palaeoecological and palaeoenvironmental changes to the Ångermanälven Estuary inferred from diatom, palynomorph and organic-geochemical data. Based on diatom assemblages, the record is divided into four zones that comprise the Ancylus Lake, Littorina Sea, Post-Littorina Sea and Recent Baltic Sea stages. The Ancylus Lake phase is initially characterized as oligotrophic, with the majority of primary productivity in the upper water column. This transition to a eutrophic state continues into the Initial Littorina Sea stage. The Initial Littorina Sea stage contains the most marine phase recorded here, as well as low surface water temperatures. These conditions end before the Littorina Sea stage, which is marked by a return to oligotrophic conditions and warmer waters of the Holocene Thermal Maximum. Glacio-isostatic rebound leads to a shallowing of the water column, allowing for increased benthic primary productivity and stratification of the water column. The Medieval Climate Anomaly is also identified within Post-Littorina Sea sediments. Modern Baltic sediments and evidence of human-induced eutrophication are seen. Human influence upon the Baltic Sea begins c. 1700 cal. a BP and becomes more intense c. 215 cal. a BP.

     

  • 154.
    Yakusheva, Natalya
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Socio-demographic changes in and around protected areas and management responses: Case studies from the Carpathians2016In: Parks of the Future:: Protected Areas in Europe Challenging Regional and Global Change / [ed] Thomas Hammer, Ingo Mose, Dominik Siegrist, Norbert Weixlbaumer, Munich: oekom verlag, 2016, p. 225-240Chapter in book (Refereed)
  • 155.
    Öhlund, Erika
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science. Södertörn University, Centre for Baltic and East European Studies (CBEES), Baltic & East European Graduate School (BEEGS).
    Hammer, Monica
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Björklund, J.
    Örebro University.
    Managing conflicting goals in pig farming: farmers’ strategies and perspectives on sustainable pig farming in Sweden2017In: International Journal of Agricultural Sustainability, ISSN 1473-5903, E-ISSN 1747-762X, Vol. 5, no 6, p. 693-707Article in journal (Refereed)
    Abstract [en]

    Industrial meat production has several negative environmental effects. Governments’ agricultural policies aim for cost efficiency combined with high environmental and animal welfare, which puts farmers in a difficult situation trying to navigate between sometimes contradictory requirements. This paper studies how Swedish pig farmers resolve or cope with conflicting goals in pig farming. We have analysed the regulations governing EU and Swedish pig farming. We have also interviewed five Swedish pig farmers about their views of the different goals of pig farming and strategies for resolving conflicts between the goals of low environmental impact, high animal welfare and enough profitability to continue farming. The greatest divide was between the conventional farmers, who emphasized natural resource efficiency, and the organic farmers who stressed animal welfare, multifunctionality and ecosystem service delivery. We suggest four strategies to contribute to resolving some of the conflicting goals: improve communication about different types of pig farming; use public procurement as a driver towards more sustainable pork production; work towards improving the Common Agricultural Policy, perhaps by implementing payments for ecosystem services or multifunctionality; and finally, decrease the total production of pork to lower the emissions per land unit.

  • 156.
    Öhlund, Erika
    et al.
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science. Södertörn University, Centre for Baltic and East European Studies (CBEES), Baltic & East European Graduate School (BEEGS).
    Zurek, Karolina
    Stockholm University / Swedish Institute for European Policy Studies.
    Hammer, Monica
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Environmental Science.
    Towards Sustainable Agriculture?: The EU framework and local adaptation in Sweden and Poland2015In: Environmental Policy and Governance, ISSN 1756-932X, E-ISSN 1756-9338, Vol. 25, no 4, p. 270-287Article in journal (Refereed)
    Abstract [en]

    Agricultural systems can be seen as nested social-ecological systems. European Union (EU) Member States vary considerably in terms of their agricultural, socio-economic and environmental circumstances. Yet, as participants in the common agricultural market, they are subject to a uniform Common Agricultural Policy (CAP). An important question is whether there is enough room for flexibility to sustain diverse agricultural systems and facilitate national targeting of sustainability-promoting measures. This article analyses the institutional arrangements concerning cross-scale interactions and interdependencies at national and regional (EU) levels, focusing on how Poland and Sweden implement CAP funds in relation to sustainable agriculture, in particular the agri-environmental schemes, for the period 2007-2013. What room is there in practice for accommodating national differences and sustainability priorities offered by the EU agricultural policy, and how are the existing opportunities used by the two countries? It is shown that agri-environmental funds are too small to prevent transition towards large-scale farming in new Member States and CAP does not effectively promote transformation towards sustainable practices in the EU.

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