Atlantic cod individual spatial behaviour and stable isotope associations in a no-take marine reserve [Software]

• Main Authors: Monk, Christopher, Power, Michael, Freitas, Carla, Harrison, Philip, Heupel, Michelle, Kuparinen, Anna, Moland, Even, Simpfendorfer, Colin, Villegas-Ríos, David, Olsen, Esben Moland
• Other Authors: Research Council of Norway, Natural Sciences and Engineering Research Council of Canada, European Commission, Consejo Superior de Investigaciones Científicas (España), Academy of Finland, Monk, Christopher [e-mail]
• Format: Software
• Language: English
• Published: Zenodo 2023
• Subjects: Atlantic cod; Diet specialization; Marine reserves; http://aims.fao.org/aos/agrovoc/c_3563933f; http://aims.fao.org/aos/agrovoc/c_3e21c332; acoustic telemetry; stable isotopes; atlantic cod; Gadus morhua
• Online Access: http://hdl.handle.net/10261/355216; https://doi.org/10.5281/zenodo.8363155

Software for the dataset https://doi.org/10.5061/dryad.pk0p2ngv6 Foraging is a behavioural process and, therefore, individual behaviour and diet are theorized to covary. However, few comparisons of individual behaviour type and diet exist in the wild. We tested whether behaviour type and diet covary in a protected population of Atlantic cod, Gadus morhua. Working in a no-take marine reserve, we could collect data on natural behavioural variation and diet choice with minimal anthropogenic disturbance. We inferred behaviour using acoustic telemetry and diet from stable isotope compositions (expressed as δ13C and δ15N values). We further investigated whether behaviour and diet could have survival costs. We found cod with shorter diel vertical migration distances fed at higher trophic levels. Cod δ13C and δ15N values scaled positively with body size. Neither behaviour nor diet predicted survival, indicating phenotypic diversity is maintained without survival costs for cod in a protected ecosystem. The links between diet and diel vertical migration highlight that future work is needed to understand whether the shifts in this behaviour during environmental change (e.g. fishing or climate), could lead to trophic cascades Funding provided by: Research Council of Norway, Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100005416, Award Number: CODSIZE 294926; Funding provided by: Natural Sciences and Engineering Research Council of Canada, Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100000038; Funding provided by: HORIZON EUROPE Marie Sklodowska-Curie Actions, Crossref Funder Registry ID: http://dx.doi.org/10.13039/100018694, Award Number: 793627; Funding provided by: Spanish National Research Council, Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100003339; Funding provided by: Academy of Finland, Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100002341, Award Number: 317495; Funding provided by: European Research Council, Crossref Funder Registry ID: ...