This preprint is under consideration at a Nature Research journal. Preprints are preliminary reports that have not undergone peer review. They should not be considered conclusive, used to inform clinical practice, or referenced by the media as validated information.
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The I, the T or the Q? Which fishing opportunity attributes are associated with sustainable fishing?
Maartje Oostdijk
University of Iceland
Corresponding Author
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While several prominent studies link the use of individual transferable quotas (ITQs) to sustainable fishing, it remains unclear which attributes of this system (i.e., individual, transferable, or quota), or any other system, lead to sustainable outcomes. To test for a linkage between management systems and sustainable fishing, we systematically classified how fishing opportunities are allocated for 443 fish stocks from 1990 to 2018 to produce the largest database of its kind. Using mixed-effects models and a difference-in-differences approach, we tested the occurrence of system attributes against two metrics of sustainable fishing: mortality (i.e., overfishing) and biomass (i.e., overfished). Our results reveal that quota limits and individual allocation reduce the probability of overfishing, but offer no evidence supporting the transferability of fishing opportunities or the length of time they are held for. These results highlight the importance of considering specific attributes in the design of fisheries management systems.
Keywords
sustainable fishing, individual transferable quotas (ITQs), management systems
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This preprint is under consideration at a Nature Research journal. Preprints are preliminary reports that have not undergone peer review. They should not be considered conclusive, used to inform clinical practice, or referenced by the media as validated information.
Nature journals have partnered with Research Square to offer In Review, a journal-integrated preprint deposition service.
The I, the T or the Q? Which fishing opportunity attributes are associated with sustainable fishing?
Maartje Oostdijk
University of Iceland
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 28 Sep, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
While several prominent studies link the use of individual transferable quotas (ITQs) to sustainable fishing, it remains unclear which attributes of this system (i.e., individual, transferable, or quota), or any other system, lead to sustainable outcomes. To test for a linkage between management systems and sustainable fishing, we systematically classified how fishing opportunities are allocated for 443 fish stocks from 1990 to 2018 to produce the largest database of its kind. Using mixed-effects models and a difference-in-differences approach, we tested the occurrence of system attributes against two metrics of sustainable fishing: mortality (i.e., overfishing) and biomass (i.e., overfished). Our results reveal that quota limits and individual allocation reduce the probability of overfishing, but offer no evidence supporting the transferability of fishing opportunities or the length of time they are held for. These results highlight the importance of considering specific attributes in the design of fisheries management systems.
Figure 1
Figure 2
Figure 3
Figure 4
Due to technical limitations, full-text HTML conversion of this manuscript could not be completed. However, the manuscript can be downloaded and accessed as a PDF.