Chapter 9 Fish And Shellfish Flashcards
The presence of a backbone indicates that the animal is a _________
Vertebrae
What is the only major food source still hunted?
Fish and shellfish
The two types of vertebrae
Finfish and sea mammals
How do finfish receive oxygen?
Through their gills
How do sea mammals obtain their oxygen?
Surface of water/air
This classification of fish/shellfish have no backbone
Invertebrae
Name the two types of invertebrae
Shellfish (crustaceans and mollusks) & cephalopods (octopus and squid)
What is a crustacean?
Soft (segmented) body in hard outer shell
What is a mollusk?
Soft segmented body within a shell (ie clams, muscles, oysters)
Distinguish the fish/shellfish of saltwater vs freshwater
In saltwater, they have more distinct flavors. In freshwater youll find fish like catfish and halibut
Lean fish have how many g of fat?
<2.5 grams
Fatty fish have how many grams of fat?
> 10 grams
Moderately fatty fish have between ___ & ____ grams of total fat
5-10
What are the 3 things that make finfish tender?
Collagen, amino acid content, and muscle structure
Fish are approximately _____% collagen (compared to meat which is 15%)
3
The higher/lower the amino acid content, the less ______ there is, which provides structure.
Lower; hydroxyproline
Hydroxyproline provides _____
Structure
Higher fat content of a fish lightens/darkens the color of the fish flesh.
Darkens
The more oxygen required in a fish, the more/less myoglobin is in there.
More
What makes a fish’s flesh flaky?
Short muscle fibers
What area of the fish is the red flesh found? What is it high in?
Toward the tail; high myoglobin, high unsaturated fat, and slow twitch muscle fibers