Till sidans topp

Sidansvarig: Webbredaktion
Sidan uppdaterades: 2012-09-11 15:12

Tipsa en vän
Utskriftsversion

Zooplankton as transforme… - Göteborgs universitet Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

Zooplankton as transformers: Fatty acid content and conversion from seston to benthos

Konferensbidrag (offentliggjort, men ej förlagsutgivet)
Författare Peter Tiselius
Benni Winding Hansen
Danilo Calliari
Publicerad i 2012 Ocean Science meeting, Salt Lake City, USA
Publiceringsår 2012
Publicerad vid Institutionen för biologi och miljövetenskap
Språk en
Länkar www.sgmeet.com/osm2012/viewabstract...
Ämnesord Copepods, PUFA, Sediment traps
Ämneskategorier Marin ekologi

Sammanfattning

We sampled seston, zooplankton and sediment trap material for fatty acid (FA) analysis during 5 campaigns spanning four seasons at a coastal site on the west coast of Sweden. Saturated (SAFA) and monounsaturated (MUFA) FAs dominated seston and trap material, while copepods contained 75-90% polyunsaturated FAs (PUFA). Sedimentation of bulk particulate organic carbon did not vary significantly with season, while pigment and in particular faecal pellet fluxes were highly variable as a result of copepod feeding. Copepod feeding, pellet and egg production were all high in summer and after the spring bloom and this resulted in a significant difference in FA composition between seston and sedimenting matter. SAFAs and MUFAs were enriched by 5-10% in sediment traps, while the sedimentation of the most important PUFA, docosahexaenoic acid (DHA), was reduced by up to 15% in summer and autumn. Overall, 5-25% of the sedimenting FAs were affected by copepod transformation with the highest transformation in the summer and autumn. Poster presentation Session #:146 Date: 2/20/2012 Time: 08:00 - 10:00 Location: Poster/Exhibit Hall Presentation is given by student: No PosterID: A0614

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?