BNS-1002 crustaceans Flashcards
Outline the crustacean body plan
head and body with tagmosis body=thorax
each segment pair of biramous limbs
what does the cephalic shield fuse with and what does it form
the cephalic shield fuses with the thoracic segments
to form the cephalothorax
what are the 5 pairs of appendages on the head
1st and 2nd antennae
mandibles
1st and 2nd maxilla
what does the abdomen comprise
several pleomeres followed by a telson
what is only found in the malacostracans
abdominal appendages
what is the last pair of abdominal appendages called
uropods
what is the characteristic larval stage called and is it free living
the nauplius
it is not free living
what are biramous limbs used for
They are used for feeding respiration and locomotion
What is the function of maxillary gland
it’s used in iono and osmo regulation
what are many copepods
many of them are ectoparasites of fish
what are the 3 diets of crustaceans
macrophagus diet
filter feedings
parasitic feeding
how do crustaceans filter feed
setate thoracic limbs
