Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

Induced tolerance in situ to chronically PAH exposed ammonium oxidizers

Artikel i vetenskaplig tidskrift
Författare J. F. Lindgren
I. M. Hassellov
J. R. Nyholm
A. Ostin
Ingela Dahllöf
Publicerad i Marine Pollution Bulletin
Volym 120
Nummer/häfte 1-2
Sidor 333-339
ISSN 0025-326X
Publiceringsår 2017
Publicerad vid Institutionen för biologi och miljövetenskap
Sidor 333-339
Språk English
Länkar doi.org/10.1016/j.marpolbul.2017.05...
Ämnesord PAHs, In situ, Microbial community, Bioavailability, Tolerance, Pollution Induced Community, SEDIMENTARY ORGANIC-MATTER, BENTHIC COMMUNITIES, OIL-SPILL, POLLUTION, BIOAVAILABILITY, MEIOFAUNA, TOXICITY, PICT, CONTAMINATION, INVERTEBRATES
Ämneskategorier Miljökemi, Marin ekologi

Sammanfattning

Sediment was sampled in the vicinity of a long-term source of Polycyclic Aromatic Hydrocarbons (PAHs) to evaluate whether tolerance can be induced in situ. Total PAH concentrations as well as the bioavailable PAHs were measured, and for nine PAHs the pore water concentration could be calculated. An induced tolerance in the ammonium oxidizing community was detected at the site with highest PAH concentration and tolerance was strongest, although not significantly, correlated to bioavailable alkylated PAHs. In addition, the tolerant microbial community showed a significant lower baseline capability for nitrification with an on average 35% reduction compared to the other sites. Meiofaunal community structure differed between all sites, and the difference was significantly correlated to bioavailable alkylated PAHs and PAH31 concentrations. The results suggest that in order to judge magnitude of long-term effects, the bioavailable fraction is to be preferred, and when possible as estimation of the freely dissolved concentration.

Sidansvarig: Webbredaktion|Sidan uppdaterades: 2012-09-11
Dela:

På Göteborgs universitet använder vi kakor (cookies) för att webbplatsen ska fungera på ett bra sätt för dig. Genom att surfa vidare godkänner du att vi använder kakor.  Vad är kakor?