Week 6: Sustainable and Ethical Fisheries Flashcards
Who relies on fish?
1 billion people, largely in developing countries, rely on fish as primary source of animal protein
What is the biggest threat to our oceans?
overfishing: not only does it threaten fish but it threatens the nutritional wellbeing of those who depend on fish
Cultural importance of fish to Syilx First Nations
- catching, preparing and eating fish are important cultural and family practices for many First Nations
- Salmon are an integral part of their lives, and serve as a symbol of their culture and heritage
What is the food chief for Syilx First Nations?
Salmon
what are the four important food species for the Syilx?
- Salmon
- Bitter Root
- Black Bear
- Saskatoon Berry
What is the fish reccomendation in the mediterranean diet?
twice weekly consumption of low to moderate amounts of fish and poultry for good heart health
Nutritional benefits of fish
- high quality protein
- vitamin D
- selenium and iodine
- low in saturated fatty acids and cholesterol
- Omega-3 fatty acids
What are high and low quality proteins?
- high quality are animal and soy and contain complete proteins
- low quality are plant proteins and are incomplete so must be paired
What does Vitamin D prevent?
prevention of rickets and osteomalacia
What is selenium?
An antioxidant
What is iodine important for?
thyroid hormone production
Importance of Syilx salmon reintroductions intiatives
- significantly higher intake of protein when salmon included, omega-3 and other nutrients than non-eaters
- traditional food eaters had significantly better diet quality
Importance of Syilx salmon reintroductions intiatives
- significantly higher intake of protein when salmon included, omega-3 and other nutrients than non-eaters
- traditional food eaters had significantly better diet quality
What are omega-3 fatty acids often called?
n-fatty acids
What are the three types of Omega-3 fatty acids?
ALA, EPA, DHA
Why can DHA and EPA not just be retrieved from ALA
Conversion of ALA to EPA and DHA is inadequate and difficult to do so better to get it from source
ALA
𝝰-linolenic acid (18:3)
EPA
eicosapentaenoic acid (20:5)
DHA
docosahexaenoic acid (22:6)
What are examples of fatty fish?
salmon, trout, sardines, herringm mackerel, anchovies
How is EPA and DHA present in fish?
Originally synthesized by algae. when fish consume other fish or phytoplankton that have eat algae they accumulate the omega-3
What contains DHA and EPA?
Found in all fish, and shellfish, but especially high in fatty fish
What contains ALA?
flaxseed, soybean, walnut, rapeseed, canola (modified rapeseed) deep green leafy greens
Fats and fatty acids breakdown