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ANS18-10-L26-FINAL-REVIEW - Part 2

ANS18-10-L26-FINAL-REVIEW - Part 2 - Mollusk Life Cycle...

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ANS 18 ANS 18 - CATFISH vs BASA 18 “David” = Vietnamese cage culture of Asian catfish “Goliath” = U.S. pond culture of catfish Catfish Wars Catfish Wars
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Salmon Life Cycle
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Eel Life Cycle 1. Leptocephalus ~ 0.2” (glass eels ~ 1 – 2”) 2. Elver 3. Adult
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Production Cycle 7-8 yr old 3-yr Caviar market Females (sacrificed) Males Meat market (live or whole to restaurant)
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Cobia Larval Rearing = 28 – 30 o C Hatching – larvae = 3.5 mm in length 3 – 7 dph = Enriched rotifers 5 – 7 dph = Brine shrimp nauplii 7 – 15 dph = Enriched 2 nd – 3 rd instar meta nauplii 15 – 25 dph = weaned to formulated feeds 200 – 350 μm 1.5 mm Fingerlings = 1 gram 75 dph = 30 grams * * Although the timing varies, the sequence of feed types is typical for marine fish larval culture Green-water Technique 80% mortality mortality nil
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Oyster Life Cycle “D-stage” veliger larvae Late veliger or “eyed” larvae
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Mollusk Life Cycle
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