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Data from: Combined bottom-up and top-down pressures drive catastrophic population declines of Arctic skuas in Scotland
负责人:
Perkins, Allan
关键词:
sandeel food availability marine conservation population dynamics predation seabird skua
摘要:
. 3. Long-term monitoring data were used to quantify changes in population size and productivity of Arctic skuas, their hosts (black-legged kittiwake Rissa
Data from: Shifts in North Sea forage fish productivity and potential fisheries yield
负责人:
Van Deurs, Mikael
关键词:
maximum sustianable yield functional complimentarity bottom-up effect small pelagic fisheries fisheries regime shift recruitment growth
摘要:
productivity and the associated influence on fisheries yield of herring, sprat, Norway pout and sandeel in the North Sea. Using principal component analysis, we analysed 40

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