Code for Aalto et al "Evidence of bluefin tuna (Thunnus thynnus) spawning in the Slope Sea region of the Northwest Atlantic from electronic tags"
Abstract/Contents
- Abstract
- Atlantic bluefin tuna (ABT) are large, wide-ranging pelagic predators which typically migrate between foraging regions in the North Atlantic and two principal spawning regions, the Gulf of Mexico and the Mediterranean Sea. A new spawning area has been described in the Slope Sea (SS) region off New England; however, the relationship between ABT that spawn in the SS and ABT using the principal spawning regions remains poorly understood. We used electronic tags to examine the location, temperature, and diving behavior of ABT in the SS, and identified 24 individuals that were present during the spawning season (June-August) with tag data showing temperatures and behavior consistent with spawning ABT. In general, the SS spawners had similar spatial ranges to Mediterranean-spawning ABT; however, some individuals displayed distinct behaviours that were identified first in Gulf of Mexico spawners. Using monthly spatial distributions, we estimated that the SS spawners have high exposure to fishing pressure relative to other ABT and may represent a disproportionate share of the West Atlantic catch. This analysis provides the first description of the behavior of ABT frequenting this spawning ground, creating a foundation for integrating this region into multi-stock management and, potentially, conserving an important source of genetic diversity.
Description
Type of resource | Dataset, text |
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Date created | [ca. 2022] |
Date modified | March 9, 2023; March 15, 2023; March 15, 2023 |
Publication date | January 12, 2023; 2023 |
Creators/Contributors
Author | Aalto, Emilius | |
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Author | Block, Barbara | |
Contributor | Dedman, Simon | |
Contributor | Stokesbury, Michael | |
Contributor | Schallert, Robert | |
Contributor | Castleton, Michael |
Subjects
Subject | Atlantic bluefin tuna |
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Subject | Slope Sea |
Subject | Spawning |
Subject | electronic tagging |
Genre | Data |
Genre | Tabular data |
Genre | Code |
Genre | Data sets |
Genre | Dataset |
Genre | Tables (data) |
Genre | Computer program |
Bibliographic information
Related item |
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DOI | https://doi.org/10.25740/qm788vt3986 |
Location | https://purl.stanford.edu/qm788vt3986 |
Access conditions
- Use and reproduction
- User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.
- License
- This work is licensed under a Creative Commons Zero v1.0 Universal license (CC0).
Preferred citation
- Preferred citation
- Aalto, E. (2023). Code for Aalto et al "Evidence of bluefin tuna (Thunnus thynnus) spawning in the Slope Sea region of the Northwest Atlantic from electronic tags". Stanford Digital Repository. Available at https://purl.stanford.edu/qm788vt3986. https://doi.org/10.25740/qm788vt3986.
Collection
Hopkins Marine Station Collection
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- Contact
- aalto@stanford.edu
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