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The Loaves and the Fishes
The Salt Wheel of Life
The Fish and the Fisherman
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Abidjan acre agricultural algae alginic acid animal plankton areas atomic basic basking sharks bottom bromine carbon dioxide catch cent CHAPTER chemical Chlorella coal and oil coast concentration continental shelf copepods creatures crop crustacea cycle deposits depth earth economic eggs environment exploitation feed feet fertilizer Figure fish fisheries food chain food energy fossil fuels frontier future Grand Banks grazing growth Gulf harvesting hatcheries heat increase industrial iodine kelp land layer limited living mankind methods milkfish minerals natural nonrenewable North Sea numbers ocean oceanography oyster pasturage pastures phosphorus photosynthesis plaice plants pond culture population possible potential pounds practical present problem production protein quantity release salt scientific sea water seaweeds shallow solar energy sources of energy sun's sunlight supply surface waters temperature tidal tides tion transplantation trapped tuna turbine types vast vegetable plankton wealth whales yield young zooplankton