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.
|Introducción a la evaluación de recursos pesqueros||
|Conceptos básicos de evaluación de estoques pesqueros||
|Introduction to Fisheries Stock Assessment and Stock Synthesis||
|Evaluación de Riesgos Poblacionales en Condrictios||
|Introducción a modelos de dinámica poblacional y evaluación de recursos marinos||
- Lennert-Cody, C.E., McCracken, M., Siu, S., Oliveros-Ramos, R., Maunder, M.N., Aires-da-Silva, A., Miguel, Carvajal Rodrigues, J. M., Opsomer, J. 2022. Single-cluster sampling designs for shark catch size composition in a Central American longline fishery. Fisheries Research
- Keisuke Satoh, Haikun Xu, Carolina V.Minte-Vera, Mark N.Maunder, Toshihide Kitakado 2021. Size-specific spatiotemporal dynamics of bigeye tuna (Thunnus obesus) caught by the longline fishery in the eastern Paciﬁc Ocean. Fisheries Research
- Carolina V Minte-Vera, Mark N Maunder, Alexandre M Aires-da-Silva 2021. Auxiliary diagnostic analyses used to detect model misspecification and highlight potential solutions in stock assessments: application to yellowfin tuna in the eastern Pacific Ocean. ICES Journal of Marine Science
- Stock, Brian C., Haikun Xu, Timothy J. Miller, James T. Thorson, and Janet A. Nye. 2021. Implementing two-dimensional autocorrelation in either survival or natural mortality improves a state-space assessment model for Southern New England-Mid Atlantic yellowtail flounder. Fisheries Research
- Thorson, James T., Meaghan D. Bryan, Peter-John F. Hulson, Haikun Xu, and André E. Punt. 2020. Simulation testing a new multi-stage process to measure the effect of increased sampling effort on effective sample size for age and length data. ICES Journal of Marine Science
- Lennert-Cody, C.E., Maunder, M.N., Román, M.H., Xu, H., Minami, M., Lopez, J. 2020. Cluster analysis methods applied to daily vessel location data to identify cooperative fishing among tuna purse-seiners. Environmental and Ecological Statistics
- Moore et al, 2020 2020. Defining the stock structures of key commercial tunas in the Pacific Ocean II: Sampling considerations and future directions. Fisheries Research
- Mark N.Maunder, James T.Thorson, Haikun Xu, Ricardo Oliveros-Ramos, Simon D.Hoyle, Laura Tremblay-Boyer, Hui Hua Lee , Mikihiko Kai, Shui-KaiChang, Toshihide Kitakado, Christoffer M.Albertsen, Carolina V.Minte-Vera, Cleridy E.Lennert-Cody, Alexandre M.Aires-da-Silva, Kevin R.Piner 2020. The need for spatio-temporal modeling to determine catch-per-unit effort based indices of abundance and associated composition data for inclusion in stock assessment models. Fisheries Research
- Sharma, R., Porch, C. E., Babcock, E. A., Maunder, M. N., Punt, A. E. 2019. Recruitment: Theory, estimation, and application in fishery stock assessment models. Fisheries Research
- Xu, H., Lennert-Cody, C. E., Maunder, M. N., Minte-Vera. C. V. 2019. Spatiotemporal dynamics of the dolphin-associated purse-seine fishery for yellowfin tuna (Thunnus albacares) in the eastern Pacific Ocean. Fisheries Research