Primary Producers

1
Primary Producers

• Bacteria, Protists, and Plants

2
Capture and Flow of energy

• Producers
• Photosynthesis
• Chemosynthesis
• Consumers
• Animals eating the producers

3
Cellular Respiration

• Liberates energy

4
Feeding Relationship

• Primary producers
• Heterotrophs
• Tropic Pyramid
• Primary producer
• Primary consumer
• Secondary consumer
• Top consumer
• Food web

5
Primary Productivity

• Biomass
• Marine producers
• Phytoplankton
• Sea weeds
• Chemosynthetic organisms

6
Measuring Primary productivity

• Radioactive carbon method
• Chlorophyll content

7
Factors Limit Productivity

• Lack of nutrients
• light

8
Plankton
9
Collecting and Studying Plankton

• Meteor
• Plankton nets
• Filteration
• Centrifugation

10
Phytoplankton
11
Diatoms

• Shape
• Frustule
• Valves
• Xanthophylls
• Fatty acids and oils
• Auxospores

12
Dinoflagellates

• Bioluminescence
• Autotrophs
• Zooxanthellae
• Flagella
• Redtide

13
Coccolithophores

• Single celled autotrophs

14
Silicoflagellates
15
Nanoplankton and Pictoplankton
16
Photic zone

• Euphotic zone
• Disphotic zone
• Aphotic zone

17
Compensation depth
18
Plankton productivity

• Tropics
• Polar
• Temperate and subpolar zones

19
zooplankton

• Macroplankton
• Holoplankton
• Meroplankton
• Forminifera
• krill

20
Plankton and food web
21
Large Marine Producers

• Algae
• Unicellular
• Multicellular
• Nonvascular
• Angiosperms
• Flowering plants
• Vascular

22
Accessory Pigments
23
Structure of seaweed

• Blade
• Stipes
• Holdfast
• Gas bladders

24
Classification of seaweeds

• Chlorophytes
• Phaeophytes
• Rhodophytes

25
Marine Angiosperms

• Sea grass
• Mangroves