Advanced fish stock assessment models II
Fundaments of state-space age-structured models.
We focus on the statistical and biological basis of stock assessment models using the Woods Hole Assessment Model (WHAM) platform. WHAM is a state-space age-structured assessment model recently developed and applied to several stocks on the US east coast. WHAM is coded in Template Model Builder (TMB), and receives several data types (e.g., catch, indices of abundance, age compositions, length compositions, etc.), making WHAM a flexible platform to assess fish stocks using the state-space approach. We use MS Excel and R in this course.
This course is offered in Spanish.
Topics
- Day 1: Introduction to state-space models and age-structured models.
- Day 2: Random effects. Input data to WHAM.
- Day 3: Biological aspects. Input data to WHAM.
- Day 4: Biological aspects. Output data to WHAM.
- Day 5: Statistical aspects. Diagnostic of results.
- Day 6: Statistical aspects. Laplace transform. Simulations.
Find the syllabus here.
Goals
- Introduce state-space assessment models.
- Introduce the WHAM platform.
- Run stocks assessment model in WHAM.
Requirement
- Basic knowledge of statistics
- Intermediate programming in R
- knowledge in fisheries biology
