Published March 28, 2022
| Version v2
Dataset
Open
Long-term biomass estimates for the central stock of northern anchovy
Creators
- 1. Farallon Institute
Description
Long-term biomass estimates for the central stock of northern anchovy (CSNA; Engraulis mordax) in the California Current Ecosystem are estimated from geospatial weighting of egg and larval data from winter/spring CalCOFI surveys (1951–2021). Estimates include the entire range of the CSNA, from northwestern Baja California, Mexico, to north of Point Reyes, California, and nearshore waters.
Notes
Conferences where the data have been presented:
Davison, P, A MacCall, WJ Sydeman, JA Thayer. (2016) California Anchovy Population Remains Low. Abstract: CalCOFI Annual Conference, San Diego, CA.
Thayer, JA, AI Szoboszlai, WJ Sydeman (2017) Predator Forage Needs: How Much Do They Need vs. How Much Do They Eat? Abstract: CalCOFI Annual Conference, La Jolla, CA.
Thayer, JA, AI Szoboszlai, WJ Sydeman (2017) Predator Forage Needs: Comparison and Synthesis of Bioenergetic and Numerical Response Models. Abstract: ICES/PICES Drivers of Dynamics of Small Pelagic Fish Resources, Victoria, BC, Canada. https://meetings.pices.int/publications/book-of-abstracts
Thayer, JA, WJ Sydeman, T Good. (2020) Implementing Ecosystem Considerations in California Current Forage Fisheries. Invited abstract: United Nations Environment Programme, Benguela Current Forage Fish Workshop. https://www.unep-aewa.org/en/meeting/benguela-current-forage-fish-workshop
Thayer, JA, T Good, E Hazen, WJ Sydeman (2021) Implementing Ecosystem Considerations in California Current Forage Fisheries. Invited abstract: ICES-PICES Joint Annual Science Conference, Special Symposium: Top predators, food webs, and ecosystem-based fisheries management. https://www.ices.dk/events/asc/ASC2021/Pages/Theme-session-A.aspx
Files
Thayer CSNA biomass estimation METHODOLOGY.pdf
Files
(140.6 kB)
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Additional details
References
- MacCall, A. D., W. J. Sydeman, P. C. Davison, and J. A. Thayer. 2016. Recent collapse of northern anchovy biomass off California. Fish Res 175:87–94. http://www.faralloninstitute.org/s/MacCallEtal2015FishRes.pdf
- Thayer, J.A., A.D. MacCall, P.C. Davison, W.J. Sydeman. 2017. California anchovy population remains low, 2012-2016. CalCOFI Rep. http://www.faralloninstitute.org/s/Thayer-et-al-2017-CalCOFI-Rep.pdf
- Davison, P. C., W. J. Sydeman, and J. A. Thayer. 2017. Are there temporal or spatial gaps in recent estimates of anchovy off California? CalCOFI Rep 58:1–13. http://www.faralloninstitute.org/s/Davison-et-al-2017-CalCOFI-Rep.pdf
- Sydeman, W.J., S. Dedman, M. Garcia-Reyes, S.A. Thompson, J.A. Thayer, A. Bakun, A.D. MacCall. 2020. Sixty-five years of northern anchovy population studies in the southern California Current: From collapse to recovery and back. ICES J Mar Sci. 77:486-499. doi:10.1093/icesjms/fsaa004