Stock Assessment Program
The Stock Assessment Program is responsible for following major areas of activity:
- Based on the best available science, implement stock assessments of tunas, billfishes, dolphins, and stocks of other species (e.g. sharks and dorado) as deemed necessary by the Members.
- Maintain active participation and/or collaboration in assessments conducted by other entities (e.g. International Scientific Committee for Tuna and Tuna-Like Species in the North Pacific Ocean, Secretariat of the Pacific Community) of stocks whose range includes the EPO (e.g. bluefin, albacore, billfishes, sharks) or for which hypotheses of stock geographic boundaries are being explored (e.g. Pacific-wide assessment of bigeye, billfishes, sharks).
- Evaluation of the effect on the status of the stocks from current or any other types of proposed management measures (e.g. using risk analysis to evaluate the impact of management measures with respect to the reference points specified in the IATTC’s harvest control rule).
- Conduct a comprehensive Management Strategy Evaluation (MSE) for the tropical tuna in the EPO and collaborate with other organizations in Pacific-wide MSEs (e.g. with ISC for albacore and Pacific bluefin tuna).
- Design and evaluation of sampling programs for fishery data collection and scientific experiments in the EPO.
- Analyzing biological and fisheries data for input into the stock assessments.
- Conducting research on stock assessment, stock assessment methodology, and related topics.
- Providing analytical support for the other IATTC research programs.
- Through collaborations with external studies, improve our understanding of the socio-economic aspects of sustainable fisheries for tropical tunas (e.g. POSEIDON with Ocean Conservancy).
- Assist with capacity-building for IATTC Members related to data collection, stock assessment, and evaluation of management options.
- Participation in scientific meetings, scientific bodies, and peer reviews of stock assessments and research.
- Organizing workshops on stock assessment methodology (e.g. the fall workshop series, in collaboration with CAPAM, the Center for the Advancement of Population Assessment Methodology) and external reviews of IATTC stock assessments.
Organigram
- Scientific research
Staff
Projects
Courses
- 1
5 Course(s)
| Introducción a la evaluación de recursos pesqueros |
Nov 2016 |
| Conceptos básicos de evaluación de estoques pesqueros |
Aug 2014 |
| Introduction to Fisheries Stock Assessment and Stock Synthesis |
Jun 2014 |
| Evaluación de Riesgos Poblacionales en Condrictios |
Oct 2013 |
| Introducción a modelos de dinámica poblacional y evaluación de recursos marinos |
Oct 2009 |
Bibliography
- Berger, A.M., Goethel, D.R., Hoyle, S.D., Lynch, P., Barceló, C., Dunn, A., Langseth, B.J., Minte‐Vera, C., Day, J., Xu, H. and Izquierdo, F. 2025. ‘Building the (Im)perfect Beast’: Strategies for Identifying Appropriate Spatial Stock Assessment Model Complexity From an International, Blinded High-Resolution Simulation Experiment. Fish and Fisheries
- Talwar, B. S., B. X. Semmens, A. Aires-da-Silva, S. Griffiths, J. Humberstone, M. Hutchinson, J. Lopez, C. Minte-Vera, D. Ovando, M. Román-Verdesoto, S. Siu and L. F. Bellquist 2025. Informing the spatial management of Silky Shark (Carcharhinus falciformis) in the Eastern Pacific Ocean. Reviews in Fish Biology and Fisheries
- Rabuffetti, A. P., Espínola, L. A., Baigun, C., Corrêa Alves, D., Minte-Vera, C. V., & others. 2025. Sustainable management and biomass dynamics of Prochilodus lineatus in a mega-river ecosystem based on ecohydrological approach.. Ecohydrology
- Maunder, M.N., Punt, A.E., Sharma, R., Methot, R.D. 2025. Stock assessment good practices: The crescendo of CAPAM’s workshop series and their consequent special issues. Fisheries Research
- Maunder, M.N., Crone, P.R., Semmens, B.X., Valero, J.L., Waterhouse, L., Methot, R.D. and Punt, A.E. 2025. The Center for the Advancement of Population Assessment Methodology (CAPAM): A perspective on the first 10 years. Fisheries Research, 281, p.107162
- Lennert-Cody, C.E., De La Cadena, C., Chompoy, L., Maunder, M.N., Fuller, D.W., Altamirano Nieto, E., Minami, M. and Aires-da-Silva, A. 2025. Bias-Adjusting Observer Species Composition Estimates of Tuna Caught by Purse-Seiners Using Port-Sampling Data: A Mixed-Effects Modeling Approach Based on Paired Well-Level Data. Fishes
- Lee, H., Piner, K.R., Maunder, M.N. and Fukuda, H. 2025. Randomization method for evaluating the reliability of a recruitment index in an integrated assessment model. Fishery Bulletin, 123(3)
- Xu, H., Maunder, M.N., Lennert-Cody, C.E., Minte-Vera, C.V. 2024. Evaluating the impacts of reduced longline fishing effort on the standardization of longline catch-per-unit-effort for bigeye tuna in the eastern Pacific Ocean. Fisheries Research
- Lennert-Cody, C.E., De La Cadena, C., McCracken, M., Chompoy, L., Vogel, N.W., Maunder, M.N., Wiley, B.A., Altamirano Nieto, E., Aires-da-Silva, A 2024. Within-well patterns in bigeye tuna catch composition and implications for purse-seine port-sampling and catch estimation in the Eastern Pacific Ocean. Fisheries Research
- Minami, M., Lennert-Cody, C.E. 2024. Regression tree and clustering for distributions, and homogeneous structure of population characteristics. Journal of Agricultural, Biological, and Environmental Statistics