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Chapter 12 – The Deep-Sea Floor 12.1 Living Conditions on the Deep-Sea Floor (Table 12.1) Types and Sources of Sediments Manganese Nodules Temperature Pressure Oxygen Concentration Sampling the Inhabitants of the Deep-Sea 12.2 Transfer of Oxygen and Energy from the Epipelagic Zone to the Deep Sea Seasonal Pulses Sinking Rates 12.3 Life on Abyssal Plains Unexpectedly High Species Diversity (Table 12.2) Feeding Strategies Deposit Feeding Absorptive Feeding Croppers 12.4 Vent and Seep Communities Hydrothermal Vent Communities Formation of Hydrothermal Vents Global Variation in Habitat Characteristics Primary Production by Bacteria Unique Consumers and Associated Food Web Diversity of Vent Inhabitants Eastern Pacific vs. North Atlantic Western Pacific vs. Indian Ocean Larval Dispersal of Hydrothermal Vent Species “Bridging” Mechanisms Cold-Seep Communities Chemosynthesis and Primary Production Seep Community of the Florida Escarpment Seep Community of the Gulf of Mexico Predation Pressure on Seep Communities Vulnerability to Extraction of Natural Gas © 2012 Jones and Bartlett Learning, LLC
