Catalogus

Zoeken

Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.

Boekenmand

Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).

RSS

Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.

log in

Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]

mandje (0): toevoegen | toon

---

An unpalatable choice, are Transparent Exopolymer Particles an alternative food source during the winter-spring transition for Acartia clausi in the Belgian Part of the North Sea? Welling, M.S. (2025). An unpalatable choice, are Transparent Exopolymer Particles an alternative food source during the winter-spring transition for Acartia clausi in the Belgian Part of the North Sea? MSc Thesis. Universiteit Gent/Flanders Marine Institute (VLIZ): Gent. 52 pp.

---

Thesis info: De Rijcke, Maarten, promotor Dujardin, Jens, co-ordinator

---

Beschikbaar in	Auteur
VLIZ: Non-open access 415627 [ aanvragen ]
Documenttype: Doctoraat/Thesis/Eindwerk

---

Trefwoord

Marien/Kust

---

Auteur		Top
Welling, M.S.

---

Abstract

Transparent Exopolymer Particles (TEP), a major class of marine gels, are omnipresent in ocean systems and influence both carbon cycling and particle dynamics. Nevertheless,  their trophic role remains poorly understood, particularly regarding consumption by zooplankton.  This study examines whether Acartia clausi, a dominant calanoid copepod in the North Sea, feeds on  TEP during the winter-spring transition. TEP and EPS concentrations were measured in two-day incubation periods with and without copepods.  EPS was assessed via mono- and polysaccharide  concentrations, representing labile and structurally complex EPS fractions, respectively.  Findings showed two main trends. In Run II (winter), A. clausi marginally significantly reduced TEP concentrations, suggesting potential grazing. In Run III (early spring), TEP increased in copepod  treatments, accompanied by declining EPS concentrations, inferring TEP formation through  mechanical aggregation of EPS. In Run IV, TEP decreased sharply without corresponding EPS changes,  implying direct consumption. Copepods also significantly increased monosaccharide concentrations, possibly due to sloppy feeding. Overall, A. clausi can act as both consumer and  facilitator of TEP, depending on context. However, other factors, such as microbial degradation and wave action, may be more important. This duality has implications for biogeochemical modeling and carbon sequestration in coastal systems.

---

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid

Top | Auteur