Södertörns högskola övergår till distansundervisning - ingen undervisning i högskolans lokaler från och med onsdag 18 mars.

Regeringen rekommenderade den 18 mars att alla högskolor och universitet går över till distansundervisning. Södertörns högskola har följt rekommendationen och ingen undervisning sker i högskolans lokaler tillsvidare, med största sannolikhet gäller detta hela vårterminen. Alla salsskrivningar ersätts med alternativ examinationsform under hela vårterminen. Studenter ombeds att ta del av information från respektive kurs eller program via Studiewebben. Medarbetare och studenter kommer in i högskolans lokaler med passerkort och både Infocenter och Biblioteket är öppna. Om du befinner dig i högskolans lokaler, tänk på att hålla avstånd till andra. För att minska smittspridningen har vi valt att stänga alla grupprum i biblioteket.

Uppdaterad:

2020-04-08

kl. 10:19

Stäng meddelande

Response and recovery of benthic biodiversity andecosystemfunctions to chemical pollution and eutrophication

Finansiärer

Östersjöstiftelsen

Projekttyp

Forskning

Society and ecological health depend on ecological processes and functions, the so-called ecosystem functions. These functions are essential for all levels of organisms and a result of their interactions with the environment. Benthic habitats, some of the most productive and diverse ecosystems on Earth, are of global importance for biogeochemical cycles. Each of the three major benthic communities, macrofauna, meiofauna and microorganisms, have key roles in these processes.

Currently, the anthropogenic pressures from nutrient overloading with oxygen depletion and pollution by heavy metals are potent threats to the diversity and functioning of these communities in the Baltic Sea and ultimately on the provision of ecosystem goods and services, that affect human wellbeing of societies in this region. Crucial, unanswered questions within Baltic Sea ecology are how anthropogenic pressure affects benthic community structure and how interactions between macrofauna, meiofana and microbial community mediate sediment ecosystem functions under different environmental conditions.

To bridge these knowledge gaps, this project examines how Baltic Sea sediment meiofauna, the most diverse and abundant metazoans in aquatic sediment, and microbial diversity interact and are structured by double exposure to two important stressors, hypoxia and heavy metal exposure. We particularly investigate how and to what extent this affects important benthic ecosystem functions relevant to sediment nitrogen cycling. Taking advantage of the multidisciplinary range of our expertise, analyses combine ecological, ecotoxicological, biogeochemical methods and environmental genomics approaches. Drawing on insurance and resilience theory we furthermore investigate whether the loss of diversity in the sediment communities reduces the resilience and recovery of benthic ecosystems processes.

Outcomes will directly relate to the directives initiated by the European community, the Water Framework Directive and the Marine Strategy Framework Directive and the Baltic Sea Action Plan that address diversity of bioindicators, chemical status and quality of the marine environment to achieve Good Environmental Status in regards to qualitative descriptors, including biological diversity, eutrophication and contaminants.

Stefano Bonaglia, Associate Professor, Stockholm University

Francisco JA Nascimento, Associate Professor, Stockholm University

Elias Broman, PhD, Stockholm University

Nisha Motwani, PhD, Södertörn University

Forskningsområde / geografiskt område

Institutionen för naturvetenskap, miljö och teknik Miljövetenskap Miljövetenskapliga studier Natur & miljö Östersjö

Projekttid

2018

Dela

Facebook Mail Twitter

Sidan är uppdaterad

2020-01-14