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- Bonaglia, StefanoStockholms universitet,Institutionen för ekologi, miljö och botanik,University of Southern Denmark, Denmark; Klaipėda University, Lithuania (author)
Sulfide oxidation in deep Baltic Sea sediments upon oxygenation and colonization by macrofauna
- Article/chapterEnglish2019
Publisher, publication year, extent ...
- 2019-10-29
- Springer Science and Business Media LLC,2019
Numbers
- LIBRIS-ID:oai:gup.ub.gu.se/286211
- https://gup.ub.gu.se/publication/286211URI
- https://doi.org/10.1007/s00227-019-3597-yDOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-176590URI
Supplementary language notes
- Language:English
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- SwePubSwePub
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Notes
- Coastal and shelf sediments affected by transient or long-term bottom water anoxia and sulfidic conditions undergo drastic changes in macrofauna communities and abundances. This study investigates how early colonization by two macrofaunal functional traits (epifauna vs. infauna) affects oxygen, sulfide, and pH dynamics in anoxic sediment upon recent bottom water oxygenation. Large mesocosms (area 900 cm(2)) with 150-m-deep Baltic Sea soft sediments were exposed to three treatments: (1) no animals; (2) addition of 170 polychaetes (Marenzelleria arctia); (3) addition of 181 amphipods (Monoporeia affinis). Porewater chemistry was investigated repeatedly by microsensor profiling over a period of 65 days. Colonization by macrofauna did not significantly deepen penetration of oxygen compared to the animal-free sediment. Bioturbation by M. affinis increased the volume of the oxidized, sulfide-free sediment by 66% compared to the animal-free control already after 13 days of incubation. By the end of the experiment M. affinis and M. arctia increased the oxidized sediment volume by 87 and 35%, respectively. Higher efficiency of epifaunal amphipods in removing hydrogen sulfide than deep-burrowing polychaetes is likely due to more substantial re-oxidation of manganese and/or nitrogen compounds associated with amphipod mixing activity. Our results thus indicate that early colonization of different functional groups might have important implications for the later colonization by benthic macrofauna, meiofauna and microbial communities that benefit from oxidized and sulfide-free sediments.
Subject headings and genre
- NATURVETENSKAP Biologi Ekologi hsv//swe
- NATURAL SCIENCES Biological Sciences Ecology hsv//eng
- NATURVETENSKAP Biologi hsv//swe
- NATURAL SCIENCES Biological Sciences hsv//eng
- polychaetes marenzelleria spp.
- organic-matter mineralization
- amphipod
- monoporeia-affinis
- hydrogen-sulfide
- genus marenzelleria
- sulfate
- reduction
- nutrient fluxes
- bioturbation
- hypoxia
- tolerance
- Marine & Freshwater Biology
Added entries (persons, corporate bodies, meetings, titles ...)
- Marzocchi, U. (author)
- Ekeroth, NilsStockholms universitet,Institutionen för ekologi, miljö och botanik,NIRAS Sweden AB, Sweden(Swepub:su)neker (author)
- Brüchert, VolkerStockholms universitet,Institutionen för geologiska vetenskaper(Swepub:su)vbruc (author)
- Blomqvist, SvenStockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)sblom (author)
- Hall, Per,1954Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences(Swepub:gu)xhallp (author)
- Stockholms universitetInstitutionen för ekologi, miljö och botanik (creator_code:org_t)
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- In:Marine Biology: Springer Science and Business Media LLC1660025-31621432-1793
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