SUBJECT INDKX 



547 



Long Island (Sound — continued 



phytoplankton nutrition, 29 



plankton analysis, 28 

 Lucas's theory, 168 



Magnesium, abundances, 23 

 Maine, Gulf of 



ammonia, 38 



phosphorus, 36 



sea-surface oxygen exchange, 53 

 Malic acid in sea -water, 174 

 Manganese 



in crustal rocks, 7 



oxidation, 18 

 Marine algae: see under Algae 

 Mass transport and change in steric level, 



260 

 Maury's principle, 110 

 Mediterranean Sea 



compensation depth, 349 



count ercurrent circulation, 63 



phosphorus distribution, 74 



productivity measurements, 35K 

 Meinardus Line, 283 

 Meridional flow, 248 ff 

 Meroplankton, 382, 409 ff 

 Mesh regulation of fishing, 480 

 Metals: see also Trace metals 



concentration in sea-water, 13 

 Meteor vessel and Expedition, 132, 247, 253, 



273, 277, 516 

 Methionine, 226 

 Microcystis sp. (bloom), vitamin content, 



182 

 Micronutrients, 227 

 Milky Way photographed using meridian 



gyrocompass, 335 ff 

 Miramichi River estuary, 311 

 Monochrysis lutheri, 176 

 Monsoon wind effects, 370, 493 

 Mooring: see Deep-sea 

 Mytilu-s, 417 



Nanoplankton (fx flagellates), 192 

 Nansen water-sampling bottle, 124 

 Nautilus submarine, 497 

 Nectonic animals, 382 

 Negative entropy, 433 

 "Nekton" ultra-deep project, 505 

 Nematoscelis difficilis, 390 ff 

 Nephythys, 418 



Neutral-buoyant floats, Drogues and, 303 

 Neutrally buoyant floats, Deep-current 

 measurements using, 297 



Niacin vitamin assays, 224 ff 

 Nickel in crustal rocks, 18 

 Nicotinic acid in seaweeds, 183 

 Ninoe, 418 

 Nipa rafts, 520 

 Nitrate regeneration, 37 

 Nitrogen 



availability and utilization in sea-water, 

 39, 351 ff 



dissolved, 120 



excretion of organic extracellular, 

 178 ff 



free, 43 



limiting factor in phytoplankton growth, 

 165 

 Nitzschia putrida, 191 

 Nonconservative elements 



accumulation, 62 



horizontal distribution. 73 ff 



vertical distribution, 69 ff 

 Non-predatory relationships theory, 168 

 Non-steady-state conditions of ocean mix- 

 ing, 105 ff 

 NORPAC Committee, 259 ff, 277 

 North Atlantic Ocean 



central water-masses, 72 



current profiles, 276 



deep water, 72 



highly saline water, 284 



inorganic phosphorus distribution, 34 



organic matter dissolved in, 171 ff 



phosphorus concentrations, 41 



photic layer, depth of, 157 



productivity, 364 



radiocarbon 14 C surface samples, 91 



subpolar eastern currents, 274 



surface temperature annual range, 270 



temperatures, 261 

 North Equatorial Current and Counter- 

 current, 84, 245 

 North Pacific Drift, .385 

 North Pacific Ocean 



annual range of surface temperature, 

 270 



subpolar eastern currents, 274 

 North Sea 



demersal fisheries regulation, 480 



organic matter dissolved in, 171 ff 



plaice and haddock fisheries, 468 ff 

 Northwest Atlantic Ocean 



food-chain analysis, 444 



oxidation of organic matter, 32 

 Norwegian North Polar Expedition (1883- 

 1896), 365 



