1. Development of an appetite model for fish
Siri Kildal Hansen

2. Outline
Motivation
My work
Questions

3. Motivation Appetite  Feed intake  Growth  Annual production
DKNVS/NTVA (Olafsen et al., 2012)

4. My work Part 1: Literature study Part 2: Mapping and modelling
Part 3: Estimation of parameters
Part 4: Simulation

5. Part 1: Literature study
What are the factors affecting appetite?
Endocrine appetite regulation

6. Part 1: Literature study
External factors
Photoperiod
Temperature
Water flow
Salinity
Oxygen levels pH
Turbidity
Stock density

7. Part 1: Literature study
Internal factors
Melatonin
Neuromedin U (NMU)
Anorexigenic
Pituitary adenylate cyclase-activating polypeptide (PACAP)
Amylin
Calcitonin gene-related peptide (CGRP)
Prolactin-releasing peptide (PrRP)
Cholecystokinin (CCK)
Urotensin I (UI)
Cocaine- and amphetamine-regulated transcript (CART)
Orexigenic
Corticotropin-releasing factor (CRF)
Apelin
Cortisol
Galanin
Gastrin-releasing peptite (GRP)
Ghrelin
Glucagon-like peptide-1 (GLP-1)
Growth hormone (GH)
Gonadotropin-releasing hormone (GnRH)
Neuropeptide Y (NPY)
Intermedin (IM)
Orexins (OX)
Leptin
Insulin
Melanin-concentrating hormone (MCH)

8. Part 1: Literature study
Internal factors:
Melatonin
Neuromedin U (NMU)
Anorexigenic
Pituitary adenylate cyclase-activating polypeptide (PACAP)
Amylin
Calcitonin gene-related peptide (CGRP)
Prolactin-releasing peptide (PrRP)
Cholecystokinin (CCK)
Urotensin I (UI)
Cocaine- and amphetamine-regulated transcript (CART)
Orexigenic
Corticotropin-releasing factor (CRF)
Apelin
Cortisol
Galanin
Gastrin-releasing peptite (GRP)
Ghrelin
Glucagon-like peptide-1 (GLP-1)
Growth hormone (GH)
Gonadotropin-releasing hormone (GnRH)
Neuropeptide Y (NPY)
Intermedin (IM)
Orexins (OX)
Leptin
Insulin
Melanin-concentrating hormone (MCH)

9. Part 2: Mapping and modelling

10. Part 2: Mapping and modelling

11. Part 3: Estimation of parameters
Cftool in MATLAB

12. Part 3: Estimation of parameters

13. Part 4: Simulation
Ode45 in MATLAB

14. Further work Statistical analysis Expand model: add more factors
More research is needed

15. Questions?