6533b857fe1ef96bd12b3c38
RESEARCH PRODUCT
Carbon and nitrogen stable isotopic inventory of the most abundant demersal fish captured by benthic gears in southwestern Iceland (North Atlantic)
Halldór P. HalldórssonJörundur SvavarssonMaurizio De PirroMario SprovieriPaola RumoloGianluca Saràsubject
0106 biological sciencesSettore BIO/07 - EcologiaRedfishIcelandAquatic ScienceOceanography010603 evolutionary biology01 natural sciencesDemersal zoneDemersal fish14. Life underwaterDemersal fishbiology010604 marine biology & hydrobiologyCapelinNorth AtlanticPelagic zoneFood webHaddockδ15Nbiology.organism_classificationStable isotopeFisheryOceanographyBenthic zoneEnvironmental sciencedescription
International audience; Stable isotopes (δC and δN) were used to examine the origin of organic matter for the most representative demersal species of the SW Icelandic fishery, accounting for over 70% of landings of those species in the North Atlantic. Samples were collected during a 2-week period in early September 2004 from landings and directly during fishing cruises. Stable isotopes showed that particulate organic matter and sedimentary organic matter were at the base of the food web and appeared to fill two different compartments: the pelagic and the benthic. The pelagic realm was composed of only capelin and sandeel; krill and redfish occupied an intermediate position between pelagic and benthic realms; while anglerfish, haddock, cod and ling resulted as the true demersal species while tusk, rays and plaice were strongly linked to the benthic habitat.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-04-30 |