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These are the lecture slides of Marine Biology. Key important points are: Marine Ecology, Interaction of Organisms, Biotic and Abiotic Factors, Biotic Factors, Abiotic Factors, Population Growth, Competition Between Species, Symbiotic Relationships, Energy Flow and Nutrient Cycle, Food Chains
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Biotic Factors
Abiotic Factors
Food Chains
Primary Producer PrimaryConsumer Secondary Consumer TertiaryConsumer
Food Chain
Decomposer
zooplankton larval fish fish
fungi
heat heat heat
phytoplankton
sun
water
Nutrients
E (^) t = P (^) t Pt-
P (^) t = annual production at level t
P (^) t-1 = annual production at t-
Primary producers
Tertiary consumers
Secondary consumers
Primary consumers 1,000 J
10% efficiency
Deposit feeders, filter feeders, grazers
1,000,000 J sunlight
10,000 J algae, seagrass, cyanobacteria, phytoplankton
100 J 1 st^ order carnivores
10 J 2 nd^ order carnivores
Antarctic Food Web
Many species don’t fit into convenient categories