1. The
Anatomy of the
Salmon...

2. Learning Intentions
We Are Learning To ...
• Identify the different parts
of the salmon.
•Explore how salmon are
suited to their environment.

3. Key Words
Gills
Eyes
Head
Fins
Nostrils Mouth
Tail
Scales
Pectoral
Pelvic
Anal
Dorsal
Adipose
Lateral
Line

4. Background Information
ALL fish have
4 things in
common ...
They have...
Gills
A flexible
backbone
Cold
blood
Fins

5. Let’s take a
closer look at
the salmon...

6. 2 pectoral fins
near the head
2 pelvic fins on
the belly
1 anal fin behind
the belly
1 dorsal fin on the
centre of the back
(Plus 1 small, fatty
adipose fin)
And a
tail

7. eyes
nostrils
mouth
& teeth
gillsA line of special
cells-
lateral line
scales

8. Now we have learned
about the anatomy of the
salmon...how do these
enable the salmon to
survive?

9. gills The salmon takes water into its mouth and
pushes it out through the gills. The blood
vessels in the gills extract oxygen dissolved in
the water as it is pushed out through the gills.
Allowing the salmon to breathe
nostrils
The salmon uses its nostrils to smell scents in
the water, to sense danger and also recognise
the familiar sent of their home stream.
Allowing the salmon to smell and
helps with safety and navigation

10. Scales and skin cover the salmon. Scales
are small, hard plates which over-lap and
protect the salmon from predators and
bruising.
The lateral line is a line of cells
along each side of the salmon
which is extremely sensitive to
pressure and allow the salmon to
sense movements and objects in
the water.
Scales begin to grow when salmon are
very young and show annual growth
rings, like trees. If scales fall off, salmon
are able to grow new scales.

11. The 6 bony fins on the salmon aid
with the salmon’s balance and
steering.
The tail fin also helps the salmon
push through the water. Female
salmon use the tail fin to dig the
redd in which they lay their eggs.
Did You Know...
The small, fatty adipose fin is cut
off by the salmon farmers at the
River Bush fisheries in Bushmills
in order to identify their fish
from other Atlantic salmon.

12. Final case to
solve...what do
salmon eat?

13. What is on the
menu for the
salmon
tonight?
Men
uPlankton
Insects
& other
invertebrates
Eels
Shrimp
& other
Small
fish

14. Well done!
You have now learned
about the anatomy of
the salmon and how it
is suited to its
environment. .
Why not take the
anatomy quiz to
test your
knowledge?