nieuwe zoekopdracht
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Glacial cold-water coral growth in the Gulf of Cadiz: Implications of increased palaeo-productivity
Wienberg, C.; Frank, N.; Mertens, K.N.; Stuut, J.B.; Marchant, M.; Fietzke, J.; Mienis, F.; Hebbeln, D. (2010). Glacial cold-water coral growth in the Gulf of Cadiz: Implications of increased palaeo-productivity. Earth Planet. Sci. Lett. 298(3-4): 405-416.
In: Earth and Planetary Science Letters. Elsevier: Amsterdam. ISSN 0012-821X; e-ISSN 1385-013X, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Author keywords
    cold-water corals; last glacial; productivity; aeolian dust; Gulf of

Auteurs  Top 
  • Wienberg, C.
  • Frank, N.
  • Mertens, K.N.
  • Stuut, J.B.
  • Marchant, M.
  • Fietzke, J.
  • Mienis, F.
  • Hebbeln, D.

    A set of 40 Uranium-series datings obtained on the reef-forming scleractinian cold-water corals Lophelia pertusa and Madrepora oculata revealed that during the past 400 kyr their occurrence in the Gulf of Cadiz (GoC) was almost exclusively restricted to glacial periods. This result strengthens the outcomes of former studies that coral growth in the temperate NE Atlantic encompassing the French, Iberian and Moroccan margins dominated during glacial periods, whereas in the higher latitudes (Irish and Norwegian margins) extended coral growth prevailed during interglacial periods. Thus it appears that the biogeographical limits for sustained cold-water coral growth along the NE Atlantic margin are strongly related to climate change. By focussing on the last glacial interglacial cycle, this study shows that palaeo-productivity was increased during the last glacial. This was likely driven by the fertilisation effect of an increased input of aeolian dust and locally intensified upwelling. After the Younger Dryas cold event, the input of aeolian dust and productivity significantly decreased concurrent with an increase in water temperatures in the GoC. This primarily resulted in reduced food availability and caused a widespread demise of the formerly thriving coral ecosystems. Moreover, these climate induced changes most likely caused a latitudinal shift of areas with optimum coral growth conditions towards the northern NE Atlantic where more suitable environmental conditions established with the onset of the Holocene.

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, voor meer informatie contacteer .