ch 13 fish form and function Flashcards
how do fish avoid predation
coloration
escape mechanisms
body armor
toxins
hiding
behaviors
what are examples of defense coloration
iridescent colors
disruptive patterns
aposematic (warning) coloration
cryptic coloration/camouflage
what is an example of a fish that uses escape mechanisms
flying fish
what is an example of a fish that uses body armor
pufferfish
what fish produce toxins
scorpionfishes, lionfishes, puffers
what is a behavioral example of avoiding predatation
schooling, migration
gonochoristic
separate sexes
two types of hermaphroditism
simultaneous and sequential
protandrous
male to female
protogynous
female to male
monogamy
1 m + 1 f
polygyny
1 m + many f
polyandry
1 f + many m
polygynandry
many m + many f
sexual paratism
that deep sea fish that attaches its sperm producing organs to fish
pelagic spawners
broadcast spawning in open ocean - no parental care
benthic spawning
broadcast spawning on seafloor - no parental care
brood hiders
hiding eggs - no parental care
guarders
parental care until offspring hatch
bearers
carrying eggs internally or externally
ovuliparity (salmon)
unfertilized eggs are laid, fertilized externally
oviparity
fertilization internal, eggs released for external development
ovoviviparity
fertilization internal, eggs stay inside parent but nutrients are from egg yolks
viviparity
fertilization internal, eggs stay inside parent, nutrients are from parent
