Sökning: id:"swepub:oai:research.chalmers.se:6f05aed1-94ea-436c-8d06-6ec39ebcfafc" >
Ecosystem functioni...
Ecosystem functioning along gradients of increasing hypoxia and changing soft-sediment community types
-
Norkko, Joanna (författare)
-
- Pilditch, Conrad A. (författare)
- University of Waikato
-
Gammal, Johanna (författare)
-
visa fler...
-
- Rosenberg, Rutger, 1943 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap, Kristineberg,Department of Biological and Environmental Sciences, Kristineberg
-
- Enemar, Anders, 1926 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap, Kristineberg,Department of Biological and Environmental Sciences, Kristineberg
-
Magnusson, Marina (författare)
-
- Granberg, Maria (författare)
- IVL Svenska Miljöinstitutet
-
- Lindgren, Fredrik, 1979 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Agrenius, Stefan, 1948 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences
-
- Norkko, Alf (författare)
- Stockholms universitet,Stockholms universitets Östersjöcentrum,University of Helsinki, Finland
-
Enemar, Arvid (författare)
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2019
- 2019
- Engelska.
-
Ingår i: Journal of Sea Research. - : Elsevier BV. - 1385-1101 .- 1873-1414. ; 153
- Relaterad länk:
-
https://helda.helsin...
-
visa fler...
-
https://doi.org/10.1...
-
https://research.cha...
-
https://gup.ub.gu.se...
-
https://urn.kb.se/re...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- Marine ecosystems world-wide are threatened by oxygen deficiency, with potential serious consequences for ecosystem functioning and the goods and services they provide. While the effects of hypoxia on benthic species diversity are well documented, the effects on ecosystem function have only rarely been assessed in real-world settings. To better understand the links between structural changes in macro- and meiofaunal communities, hypoxic stress and benthic ecosystem function (benthic nutrient fluxes, community metabolism), we sampled a total of 11 sites in Havstensfjord and Askeröfjord (Swedish west coast) in late summer, coinciding with the largest extent and severity of seasonal hypoxia in the area. The sites spanned oxic to anoxic bottom water, and a corresponding gradient in faunal diversity. Intact sediment cores were incubated to measure fluxes of oxygen and nutrients (NO3−, NO2−, NH4+, PO43−, SiO4) across the sediment-water interface. Sediment profile imaging (SPI) footage was obtained from all sites to assess structural elements and the bioturbation depth, and additional samples were collected to characterise sediment properties and macro- and meiofaunal community composition. Bottom-water O2 concentration was the main driver of macrofauna communities, with highest abundance and biomass, as well as variability, at the sites with intermediate O2 concentration. Meiofauna on the other hand was less sensitive to bottom-water O2 concentration. Oxygen was the main driver of nutrient fluxes too, but macrofauna as well meiofauna were also significant predictors; DistLM analyses indicated that O2 concentration, macrofaunal abundance or biomass, and meiofaunal abundance collectively explained 63%, 30% and 28% of the variation in sediment O2 consumption, NH4+flux and PO43− flux, respectively. The study provides a step towards a more realistic understanding of the link between benthic fauna and ecosystem functioning, and the influence of disturbance on this relationship, which is important for management decisions aimed at protecting the dwindling biodiversity in the coastal zones around the world.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- Macrofauna
- Ecosystem functioning
- Structural community changes
- Hypoxia
- Nutrient cycling
- Meiofauna
- Ecosystem functioning
- Hypoxia
- Macrofauna
- Meiofauna
- Nutrient cycling
- Structural community changes
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Norkko, Joanna
-
Pilditch, Conrad ...
-
Gammal, Johanna
-
Rosenberg, Rutge ...
-
Enemar, Anders, ...
-
Magnusson, Marin ...
-
visa fler...
-
Granberg, Maria
-
Lindgren, Fredri ...
-
Agrenius, Stefan ...
-
Norkko, Alf
-
Enemar, Arvid
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Biologi
-
och Ekologi
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Geovetenskap och ...
-
och Oceanografi hydr ...
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Geovetenskap och ...
-
och Miljövetenskap
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Biologi
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Geovetenskap och ...
- Artiklar i publikationen
-
Journal of Sea R ...
- Av lärosätet
-
Chalmers tekniska högskola
-
Göteborgs universitet
-
Stockholms universitet
-
IVL Svenska Miljöinstitutet