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seahorses (physical characteristics (no scales (exoskeleton = hard…
seahorses
physical characteristics
no scales
exoskeleton = hard external bony plates
prehensile tail
uses tail to hold onto weeds
changes colour to match environment
has no caudal fins( tail)
has a snout that points down
excellent eyesight
independent eyes on each side of the head
needs good eyesight to hunt for food
grow fleshy appendages- for camoflage
called cirri
mating
seahorses mate for life
greet each other in the morning
male circles female
have elaborate display of courtship for 1 hour
Male has a pouch where the fry develop
only animal where male develops young
gestation is 14days to 4 weeks
number of eggs:
small species= 50-150
larger species 1500
general information
Latin name : hippocampus
hippocampus means horse caterpillar
fish
lives in water
has Gills and a swim bladder
poor swimmers
young
independent from birth
called fry
only 1 in 1000 survives to adulthood
food
small crustaceans e.g Mysis shrimp
eat 30-50 times / day - adult
youn: 3000 pieces of food
suck food like vacuum
disintegrate food
not able to chew
under threat:
chinese Medicine
pet trade
souvenirs- stolen from wild and left to dry out in sun