Heppner Jr/Sr High School Credit for Proficiency in the Classroom (C4P) Clearing Up the Target!
Classroom presentation day 4 life cycle jr
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Transcript of Classroom presentation day 4 life cycle jr
Nancy Caruso- Marine BiologistNancy Caruso- Marine Biologist
Green Abalone Restocking Green Abalone Restocking ProgramProgram
Abalone Anatomy andAbalone Anatomy andReproductionReproduction
How do you sex an How do you sex an abalone?abalone?
FemaleMale
Photo credit: Frank O’Donnel
Abalone Life Abalone Life CycleCycle
VocabularyVocabulary EggEgg TrocophoreTrocophore VeligerVeliger Post larval spatPost larval spat JuvenileJuvenile AdultAdult
Abalone release billions of eggs and sperm
The eggs are fertilized by the sperm and become…
EggEgg
Trocophore Larvae Trocophore Larvae (within 24 (within 24 hours) Has a shell!hours) Has a shell!
Veliger LarvaeVeliger Larvae(within 48 hours)(within 48 hours)
Post larval spat Post larval spat (settled/crawling)(settled/crawling)
(14-21 days after fertilization) (14-21 days after fertilization)
Juvenile 1-3 months after Juvenile 1-3 months after fertilizationfertilization
Adult 2 -4 yearsAdult 2 -4 years(grow 1” per year for the (grow 1” per year for the first few years then slowerfirst few years then slowerafter that)after that)
24 Hours
14-21 days
1-3 months
Shell forms
Feeds on egg24 Hours
When do abalone spawn in When do abalone spawn in the ocean?the ocean?
June through NovemberJune through NovemberWhy?Why?
What do Veligers and What do Veligers and trocophores eat? trocophores eat? (while they are (while they are planktonic)planktonic)
Words to knowWords to know EggEgg TrocophoreTrocophore VeligerVeliger Post larval spatPost larval spat JuvenileJuvenile AdultAdult
Game: Whose your Game: Whose your Daddy?Daddy?
LobsterLobster
FishFish
CrabsCrabs
StarfishStarfish
JellyfishJellyfish
abaloneabalone
The End