microalgae in aquaculture pablo gonzalez-alanis. microalgae in aquaculture manage a body of water...
Post on 15-Jan-2016
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Microalgae in aquaculture
Pablo Gonzalez-Alanis
Microalgae in aquaculture
• Manage a body of water
• Provide more food• Chemical fertilizers,
organic materials (manures), suplemetary diet
Microalgae in aquaculture
•Successful colonization•Light to provide energy•Inorganic nutrients•Water Temperature
Microalgae in aquaculture
• Bacillariophyta• Cyanophyta• Dinophyta• Euglenophyta
Microalgae in aquaculture
• Experiment objective:– Observe the changes in the
phytoplankton colony in a shrimp tank
Microalgae in aquaculture
• Samples collection
• Cell counting
• Identification
Samples collection
• 3 tanks made of plastic liner (23 m2
aprox)
• 50 shrimps/ m2
• Commercial pelleted feed (25 % of total shrimp biomass) daily
Samples collection
• Collected weekly • Analyzed
(identificated and counted)
Cell counting
• Standar compound microscope with 10, 20 and 40 X magnification objectives
• Haemacytometer
Cell counting
Identification
• Key to the major groups (Divisions) of phytoplankton in northern Queensland prawn ponds (after Bellinger 1992) Stafford C. 1999.
Results
• Synechocystis
Results
• Coscinodiscuss
Results
• Gymnodium
Results
• Navicula
Results
• Agmenellum
Algae by genera, 87 F, sunny, tq 1
0
5
10
1
Genera
# of
org
anis
ms
Sinechocystis
Coscinodiscuss
Gymnodium
Prorocentrum
Algae by genera, 87F, sunny, tq 2
02468
1
Genera
# of
org
anis
ms Sinechocystis
Coscinodiscuss
Surirella
Bellerochea
Algae by genera, 78 F, clouds tq 1
0
5
10
1
Genera
# of
org
anis
ms
Sinechocystis
Coscinodiscuss
Navicula
Agmenellum
Algae by genera, 78 F, clouds tq 2
02468
1
Genera
# of
org
anis
ms Sinechocystis
Navicula
Agmenellum
Thanks...