LET'S FIND OUT ABOUT FISH AND SHELLFISH..

 

SECTION 1

TEACHERS' NOTES:  INTRODUCTION


These notes help to explore the variety of fish and shellfish available and their common characteristics. To establish what the children know and extend their knowledge use a simple concept map highlighting some areas for discussion.    



 
           

 
                                                                       
                                                                                                                                                                 
                                                    












There are several types of fish, as well as naming these types of fish they can also
be grouped according to their characteristics or habitat: 





FLAT FISH (Demersal)

(Plaice)

 
Flat fish or demersal species living on the sea bed
for example:  Plaice, Dab, Sole






ROUND FISH (Cylindrical in shape)

(Gurnard)


Some are demersal living near sea beds e.g. cod, gurnard
& some are pelagic living towards the top of the sea
for example:  Mackerel, Sardines




 

FRESHWATER FISH 

(Gurnard)

 
Freshwater fish that spend all or some of their life in rivers or lakes
for example: Salmon, Trout, Eels, Pike, Perch,
River Cobbler/ Basa, Tilapia, Catfish






SHELLFISH (Crustaceans)

(Crab)

Shellfis are made of Crustaceans and Cephalopods
Crustaceans are free-living aquatic animals.
for example: Crabs, Prawns, Molluscs,
Mussels, Clams, Whelks


and Cephalopods are found in all the oceans of earth
with none of them able to tolerate freshwater
.
for example: Squid and Octopus.



 
Download the above section as a printable PDF file  














 
 
                          

Download the above section as a printable PDF file
                                                                                                                                                                                                                                 





 



 




Using a selection of real fish/shellfish:
You might be able to source a small selection of fish and shellfish for the children to study they can
investigate, sort and sketch. One whole fish could be filleted to show all the different parts.

You’ll need: trays/mats or boards; Board and a filleting knife (if cutting the fish)
hand wipes, hand gels to clean hands.Using a selection of real fish/shellfish:
You might be able to source a small selection of fish and shellfish for the children to study they can
investigate, sort and sketch. One whole fish could be filleted to show all the different parts.

You’ll need: trays/mats or boards; Board and a filleting knife (if cutting the fish)
hand wipes, hand gels to clean hands.

 
 





(Flat fish)







(Round fish)








(Shellfish)






 

 










Naming parts of a fish:
You can use the diagram of the fish below to discuss the various parts of a fish.
See how much can be remebered by downloading a blank pupils version below.






 





 

 






Find the fish & shellfish wordsearch:
The wordsearch below has a total of 30 hidden fish and shellfish names. The names are horizontal
and vertical in position, see how long it takes the class to identify all the hidden names.
(Download the teachers copy with all the answers below)
 







 
 




 


 
Learning the characteristics of fish and shellfish:
Use the cards below to learn and discuss the main characteristics of fish & shellfish.
More information for each card can be found on the teachers version printable below.



 



 


 
Comparing and contrasting fish and humans:
There are many differences between fish and humans, however there
are a number of similarities as well. Download the activity sheet below
and use to discuss these comparisons & contrasts.

 



 











 




 



Comparing and contrasting fish and humans:
There are many differences between fish and humans, however there
are a number of similarities as well. Download the activity sheet below
and use to discuss these comparisons & contrasts.




 


 







 



BI-VALVE Shellfish which have two shells joined by a hinge, they are filter feeders which filter food from the water they live in.

CEPHALOPOD  Means “head foot” they have large heads and a modified foot which are the tentacles, some have an internal shell – the quill in squid is an example.

CRUSTACEAN Shellfish which have a hard external skelton or shell which is jointed like lobsters and crabs. The shell has to be shed from time to time to allow the animal to grow bigger.

DEMERSAL Fish which live primarily on or near the seabed.

FLAT FISH A fish which swims along the sea floor on one side of its compressed body, both eyes are on the upper side, the under side is usually lighter in colour than the top side.

FOOD CHAIN  A succession of organisms which eat the ones immediately below them eg algae is eaten by fish which are eaten by seals which are eaten by sharks.

FRESH WATER Water which is not salty, water in rivers, lakes and ponds is fresh water.

MOLLUSC Shellfish which do not have a jointed body like crustaceans, but have either a hard external shell (bivalves and gastropods) or an internal bone or quill.

PELAGIC Fish which swim in mid water or near the surface of the sea – not on the sea bed.

ROUND FISH A fish which has a cylindrical, round or torpedo body shape.

SCALES  The thin transparent shell like coverings of the body of a fish, they overlap making a water tight covering.





Marine Stewardship Council: www.fishandkids.org
Marine Conservation Society in collaboration with Marks and Spencer plc: www.school-of-fish.co.uk
Seafood Scotland- wealth of information including species guide: www.seafoodinschools.org






 

 


 Where do Fish and Shellfish come from?