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Advancing spatially explicit fisheries management with age-specific species distribution models



Details

  • Journal Title:
    Canadian Journal of Fisheries and Aquatic Sciences
  • Personal Author:
  • NOAA Program & Office:
  • Description:
    Many species distribution models (SDMs) incorporate external information, such as environmental or habitat features, yet the majority overlook age-specific information. Including age information may be particularly valuable for species exhibiting age-related spatial patterns driven by ontogenetic shifts, recruitment dynamics, and selective fishing pressures. Here, we develop an age-structured SDM framework using data from the west coast of the USA and concentrate on two species with distinct life histories: North Pacific hake (Merluccius productus) and sablefish (Anoplopoma fimbria). We validate our approach by forecasting age classes across survey locations in future years; these results highlight that forecast models have predictive skill (sablefish more so than hake) and that the predictive ability is highest for older age classes. Using predictions of age-1 sablefish as an example, we demonstrate how our models may be used to forecast future bycatch risk in space, helping increase the efficiency of fisheries. Our framework is applicable to a wide range of survey types and platforms around the world and supports the development of spatially explicit management strategies and optimal allocation of fishing effort.
  • Source:
    Canadian Journal of Fisheries and Aquatic Sciences, 82, 1-11
  • DOI:
  • ISSN:
    0706-652X ; 1205-7533
  • Format:
    pdf
  • Publisher:
    Canadian Science Publishing
  • Document Type:
    Journal Article
  • Rights Information:
    Accepted Manuscript
  • Compliance:
    Submitted
  • Main Document Checksum:
    urn:sha-512:e061c52af703fd6d9e93f617fa9aad3d6911af602f26f7aefb9c6d372dfe4191dee5c37d92598d77a7763f687f1800b987335d4465198429bce3ea67317c1b71
  • Download URL:
  • File Type:
    Filetype[PDF - 3.03 MB ]
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