Open WL Archief (OWA)

Over het archief

Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.

Basisinformatie over ‘Open Access to scholarly information'.

[ meld een fout in dit record ]

mandje (0): toevoegen | toon

---

Benthic food-web structure of an Arctic fjord (Kongsfjorden, Svalbard) Renaud, P.E.; Tessmann, M.; Evenset, A.; Christensen, G.N. (2011). Benthic food-web structure of an Arctic fjord (Kongsfjorden, Svalbard). Mar. Biol. Res. 7(1): 13-26. https://dx.doi.org/10.1080/17451001003671597 In: Marine Biology Research. Taylor & Francis: Oslo; Basingstoke. ISSN 1745-1000; e-ISSN 1745-1019, meer

---

Beschikbaar in	Auteurs
VLIZ [ aanvragen ]

---

Trefwoorden

Isotopes Periodicity > Seasonality Spatial variations Trophic structure ANE, Norway, Svalbard [Marine Regions] Marien/Kust

Author keywords

Functional group; seasonality; spatial variability; stable isotopes;trophic structure

---

Auteurs		Top
Renaud, P.E., meer Tessmann, M. Evenset, A. Christensen, G.N.

---

Abstract

Describing trophic relationships is fundamental for understanding ecosystem function and evaluating how these functions may vary under natural and human-induced changes in system drivers. The food-web structure (food-chain length, primary carbon sources, trophic positions of dominant functional groups) of an Arctic benthic community was investigated using stable isotopes of carbon and nitrogen. Suspended organic matter, benthic fauna, and benthic-feeding fishes and seabirds were collected from two locations during three seasons in and just outside of Kongsfjorden, Svalbard. Stable isotope ratios suggested relatively little variability in food-web structure over the temporal and spatial scales studied. A single food source (pelagic phytoplankton) appeared to predominate throughout the year regardless of location. Further, our results confirmed findings from other areas indicating that Arctic food chains are long, consisting of between 4 and 5 trophic levels. The prevalence of deposit-feeding taxa may buffer seasonal signals, and the highly advective nature of Kongsfjorden, and perhaps many open (non-silled) fjords, is likely responsible for similar food-web structure, despite spatial variability in benthic community composition.

---

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

Top | Auteurs

IMIS is ontwikkeld en wordt gehost door het VLIZ.