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Comparing the steady state results of a range of multispecies models between and across geographical areas by the use of the jacobian matrix of yield on fishing mortality rate

Pope, John G. and Bartolino, Valerio and Kulatska, Nataliia and Bauer, Barbara and Horbowy, Jan and Ribeiro, Joana P. C. and Sturludottir, Erla and Thorpe, Robert (2019). Comparing the steady state results of a range of multispecies models between and across geographical areas by the use of the jacobian matrix of yield on fishing mortality rate. Fisheries Research. 209, 259-270
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Official URL: http://dx.doi.org/10.1016/j.fishres.2018.08.011

Abstract

Like other fisheries models, multispecies models are subject to various sources of error. However, with regard to their use for ecosystem-based fisheries management (EBFM) between model errors are likely to be most important. As multispecies models are by definition many-dimensional, comparing them is potentially a complex task. The paper uses a simple approach. This is to calculate the Jacobian matrix of long term steady state catch by species with respect to the fishing mortality relative to status quo levels on all species. This enables the comparison of the relative strength of species interactions among models both within and between regions. This Jacobian matrix approach to comparing multispecies models is applied to available models for the North Sea, the Baltic Sea and from Icelandic waters. Moreover, this information is used to provide the basis for estimating a multidimensional quadratic yield surface for each model in the near field. Used this way it is possible to compare different model estimations of fishing mortality rate changes needed to approach yield-related management goals. The results suggest considerable variation between models in their detailed results but more coherence in suggesting directions for changing fishing mortality rate. Thus the approach is of considerable importance in specifying the confidence with which it is possible to make multispecies predictions for EBFM.

Authors/Creators:Pope, John G. and Bartolino, Valerio and Kulatska, Nataliia and Bauer, Barbara and Horbowy, Jan and Ribeiro, Joana P. C. and Sturludottir, Erla and Thorpe, Robert
Title:Comparing the steady state results of a range of multispecies models between and across geographical areas by the use of the jacobian matrix of yield on fishing mortality rate
Series/Journal:Fisheries Research (0165-7836)
Year of publishing :2019
Volume:209
Page range:259-270
Number of Pages:12
Publisher:Elsevier
Associated Programs and Other Stakeholders:SLU - Environmental assessment > Data from Environmental Assesment (FoMA) is used
ISSN:0165-7836
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Fish and Aquacultural Science
Keywords:Comparing multispecies models, North Sea, Baltic Sea, Icelandic waters, EBFM, Jacobian
URN:NBN:urn:nbn:se:slu:epsilon-e-5309
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-5309
Additional ID:
Type of IDID
DOI10.1016/j.fishres.2018.08.011
Web of Science (WoS)000451654100025
ID Code:15864
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:21 Mar 2019 11:19
Metadata Last Modified:27 Mar 2019 17:01

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