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The Danish fish fauna during the warm Atlantic period (ca. 7000-3900 BC): forerunner of future changes?
Enghoff, I.B.; MacKenzie, B.R.; Nielsen, E. (2007). The Danish fish fauna during the warm Atlantic period (ca. 7000-3900 BC): forerunner of future changes?, in: Ojaveer, H. et al. (Ed.) History of marine animal populations and their exploitation in northern Europe. Fisheries Research, Spec. Issue 87(2-3): pp. 167-180
In: Ojaveer, H.; MacKenzie, B.R. (Ed.) (2007). History of marine animal populations and their exploitation in northern Europe. Fisheries Research, Spec. Issue 87(2-3). Elsevier: Amsterdam. 100-261 pp., more
In: Fisheries Research. Elsevier: Amsterdam. ISSN 0165-7836, more
Peer reviewed article  

Also published as
  • Enghoff, I.B.; MacKenzie, B.R.; Nielsen, E. (2007). The Danish fish fauna during the warm Atlantic period (ca. 7000-3900 BC): forerunner of future changes? Fish. Res. Spec. Issue 87(2-3): 167-180. dx.doi.org/10.1016/j.fishres.2007.03.004, more

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Keywords
    Biodiversity; Climate change; Climate change; Climatic changes; Fish; History; Dicentrarchus labrax (Linnaeus, 1758) [WoRMS]; Gadus morhua Linnaeus, 1758 [WoRMS]; Pisces [WoRMS]; ANE, Baltic [Marine Regions]; ANE, Kattegat [Marine Regions]; Marine

Authors  Top 
  • Enghoff, I.B.
  • MacKenzie, B.R., more
  • Nielsen, E.

Abstract
    Vast amounts of fish bone lie preserved in Denmark's soil as remains of prehistoric fishing. Fishing was particularly important during the Atlantic period (ca. 7000-3900 bc, i.e. part of the Mesolithic Stone Age). At this time, sea temperature and salinity were higher in waters around Denmark than today. Analyses of more than 100,000 fish bones from various settlements from this period document which fish species were common in coastal Danish waters at this time. This study provides a basis for comparing the fish fauna in the warm Stone Age sea with the tendencies seen and predicted today as a result of rising sea temperatures. One example concerns the anchovy (Engraulis encrasicolus), which lived in the Stone Age sea, and has become more numerous in Danish waters since the mid-1990s. Other warm water fishes represented among the Stone Age bone samples include smoothhound (Mustelus sp.), common stingray (Dasyatis pastinaca), European sea bass (Dicentrarchus labrax), black sea bream (Spondyliosoma cantharus) and swordfish (Xiphias gladius). Surprisingly, Atlantic cod (Gadus morhua), whose biomass in the Kattegat and eastern Baltic Sea is presently at record low levels, was one of the most frequently caught species in the Danish Stone Age sea. These results demonstrate that major changes to the fish fauna near Denmark will occur as climate changes. However, exploitable cod populations can potentially be maintained in waters near Denmark, including the North Sea, but the vulnerability to climate change and the risk of stock collapse will increase at present high fishing mortalities.

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