Abstract
Lay summary Selective harvest of wild organisms by humans can influence the evolution of plants and animals, and fishing is recognized as a particularly strong driver of this process. Importantly, these effects occur alongside environmental change. Here we show that aquatic hypoxia can alter which individuals within a fish population are vulnerable to capture by trawling, potentially altering the selection and evolutionary effects stemming from commercial fisheries.
Highlights
Harvest of animals from wild populations is recognized as a driver of phenotypic and genetic change (Allendorf andHard, 2009; Darimont et al, 2015; Hendry et al, 2017)
Swimming performance was strongly affected by hypoxia (Table 1; generalized linear mixed model (GLMM), P < 0.001; r2m = 0.51; r2c = 0.72) with mean ± SE Ucrit being 67.9 ± 0.49 cm s−1 in hypoxia and 80.3 ± 0.45 cm s−1 in normoxia (Fig. 2)
There was an ∼7-fold difference in the number of fish that were captured between normoxia and hypoxia
Summary
Harvest of animals from wild populations is recognized as a driver of phenotypic and genetic change 2009; Darimont et al, 2015; Hendry et al, 2017). Individuals of a certain size (Conover et al, 2009), behavioural type (Diaz Pauli and Sih, 2017) or those displaying specific morphological characteristics (Jachmann et al, 1995) have University. Press and the Society for Experimental Biology. By/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
