Microalgae in aquaculture Pablo Gonzalez-Alanis
Feb 09, 2016
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...