Assumptions behind size-based ecosystem models are realistic

作者:Andersen Ken H*; Blanchard Julia L; Fulton Elizabeth A; Gislason Henrik; Jacobsen Nis Sand; van Kooten Tobias
来源:ICES Journal of Marine Science, 2016, 73(6): 1651-1655.
DOI:10.1093/icesjms/fsv211

摘要

A recent publication about balanced harvesting (Froese et al., ICES Journal of Marine Science; 73:1640-1650) contains several erroneous statements about size-spectrum models. We refute the statements by showing that the assumptions pertaining to size-spectrum models discussed by Froese et al. are realistic and consistent. We further show that the assumption about density-dependence being described by a stock recruitment relationship is responsible for determining whether a peak in the cohort biomass of a population occurs late or early in life. Finally, we argue that there is indeed a constructive role for a wide suite of ecosystem models to evaluate fishing strategies in an ecosystem context.

  • 出版日期2016-6
  • 单位CSIRO