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Ichthyology terms
terms for final
12
Science
Undergraduate 3
05/07/2009

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Term
Semelparous
Definition
Reproduce only once in their lifetime- SALMON
Term
Iteroparous
Definition
Reproduce many times in their lifetime- able to become large
Term
R-selective
Definition
many small offspring
Term
K-selective
Definition
few large offspring
Term
fractional spawner
Definition
spp that produce eggs continually throughout the year; they spawn frequently
Term
batch spawners
Definition
spp that have a single reproductive season; they release all of their eggs in a short period of time
Term
mass spawners
Definition
smelt
clupeiformes (herring,smelt)
Term
Polygyny
Definition
many males to one female
salmoniformes
lamprey
Term
Polyandry
Definition
many females to one male
gobiidae
Term
single pair mating
Definition
guppies
Term
for the most part fertilization is _____ in all species except for those who are _____. two examples of this are _________ and ____________
Definition
external; livebearers, elasmobranches; poecilidae
Term
types of non-guarders
Definition
pelagic (broadcast)
benthic
brood hiders
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