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Oceans 11 – Dalesandro Notes – Taxonomy and Classification -taxonomy


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Oceans 11 – Dalesandro

Notes – Taxonomy and Classification
-Taxonomy is the science of classifying living things. We use taxonomy to
separate and identify different fish species in the ocean.
- Organisms are more closely related to each other if their lower taxonomic
divisions match. Organisms are more distantly related to each other if only their
upper taxonomic divisions match.
Example 1: These two fish are closely related, since only the very bottom taxonomic
information is different (genus and species).





Organism 1 – Trout

Organism 2 – Char

Kingdom

Animalia

Animalia

Phylum

Chordata

Chordata

Class

Actinopterygii

Actinopterygii

Order

Salmoniformes

Salmoniformes

Family

Salmonidae

Salmonidae

Genus

Oncorhynchus

Salvelius

Species

Mykiss

Alpinus


Example 2: These two fish are not closely related, since higher taxonomic
information is different (order and family).





Organism 1 – Gar

Organism 2 – Goldfish

Kingdom

Animalia

Animalia

Phylum

Chordata

Chordata

Class

Actinopterygii

Actinopterygii

Order

Lepisosteiformes

Cypriniformes

Family

Lepisosteidae

Cyprinidae

Genus

Atractosteus

Carassius

Species

cuvier

auratus

-A dichotomous key is a written taxonomic tool used to determine where a


particular organism “fits” or belongs to.






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