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Development of international fisheries for the eastern Baltic cod (Gadus morhua) from the late 1880s until 1938
Eero, M.; MacKenzie, B.R.; Karlsdóttir, H.M.; Gaumiga, R. (2007). Development of international fisheries for the eastern Baltic cod (Gadus morhua) from the late 1880s until 1938. Fish. Res. Spec. Issue 87(2-3): 155-166. DX.doi.org/10.1016/j.fishres.2007.02.015
In: Fisheries Research. Elsevier: Amsterdam. ISSN 0165-7836, more
Peer reviewed article  

Also published as
  • Eero, M.; MacKenzie, B.R.; Karlsdóttir, H.M.; Gaumiga, R. (2007). Development of international fisheries for the eastern Baltic cod (Gadus morhua) from the late 1880s until 1938, 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. 155-166, more

Available in Authors 
    VLIZ: Open Repository 131712 [ MOA ]

Keywords
    Exploitation; Fishery data; Fishery development; Gadus morhua Linnaeus, 1758 [WoRMS]; ANE, Baltic [Marine Regions]; Marine

Authors  Top 
  • Eero, M.
  • MacKenzie, B.R., more
  • Karlsdóttir, H.M.
  • Gaumiga, R.

Abstract
    The paper provides an overview of eastern Baltic cod (Gadus morhua) fisheries from the end of the 1880s until 1938, in order to improve the knowledge of long-term stock dynamics. The data compiled and included in the study comprise catches and economic values of exploited fish species, time series of indicators of fishing effort and qualitative information on developments in fishing technology. This information has been assembled for different countries and locations in the Baltic Sea. We first summarize the multi-decadal development of national cod fisheries and their relative importance during the first decades of the 20th century. We then assess whether these data can be used to estimate the relative roles of fishing and ecosystem changes on variations in catches. We conclude that the assembled data reveal biologically meaningful variations in the state of the cod stock and that some of the variations in the catches of different countries (e.g. decline in the late 1920s; increase in the late 1930s) were caused by factors other than fishery developments. These factors probably include ecosystem-induced variations in cod population dynamics and need further investigation.

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