Using the images provided below, develop your own dichotomous key through the format given. An example of a dichotomous key will be shown below the format. 1) a._____________________________________________________ b._____________________________________________________ 2) a. _____________________________________________________ b. _____________________________________________________ 3) a. _____________________________________________________ b. _____________________________________________________ 4) a. _____________________________________________________ b. _____________________________________________________ 5) a. _____________________________________________________
Using the images provided below, develop your own dichotomous key through the format given. An example of a dichotomous key will be shown below the format.
1) a._____________________________________________________
b._____________________________________________________
2) a. _____________________________________________________
b. _____________________________________________________
3) a. _____________________________________________________
b. _____________________________________________________
4) a. _____________________________________________________
b. _____________________________________________________
5) a. _____________________________________________________
b. _____________________________________________________
6) a. _____________________________________________________
b. _____________________________________________________
Example of dichotomous key:
Step 1
-If fish shape is long and skinny_ go to Step 2
-If fish shape is not long and skinny_go to step 3
Step 2
-If the fish has pointed fins, it is a trumpet fish (Aulostomus maculatus)
-If the fish has smooth fins, it is a spotted moray eel (Gymnothorax moringa)
Step 3 -If fish has both eyes on top of the head_go to step 4
-If fish has one eye on each side of the head_go to step 5
Step 4
-If the fish has long whip-like tail, it is a spotted eagle ray (Aetobatus narinari)
-If the fish has short, blunt tail, it is a peacock flounder (Bothus mancus)
Step 5
-If fish has spots_ go to step 6
-If fish does not have spots_ go to step 7)
Step 6
-If fish has chin “whiskers,” it is a spotted goatfish (Parupeneus barberinus)
-If fish does not have chin “whiskers,” it is a band-tail puffer (Arothron meleagris)
Step 7
-If fish has stripes_go to step 8
-If fish does not have stripes, it is a glassy sweeper (Pempheris xanthoptera)
Step 8
-If fish has a v-shaped tail,it is a squirrel fish (Sargocentron bullisi)
-If fish has a blunt tail, it is a glass-eye snapper (Heteropriacanthus cruentatus)
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