SUBJECT INDEX 



543 



Delaware River estuary, 311 

 Dendraster eggs, 229 

 Denitrification of organic matter, 43 

 Denmark: see Lightships 

 Density and its measurement, 110 ft 

 Desert varnish, 18 

 Deutschland (ship), 286 ff 

 Diatoms, 200, 433 



carbohydrate production, 177 



flowering, 439 

 Differential advection, 58 ff 

 Dinoflagellates, 200, 377 



carbohydrate production, 177 



poisonous, 189 

 Dinophyceae, vitamin requirements, 194 

 Dipmeter, 341 ff 

 Discovery Station no. 3849, 34 

 Discovery II, 283, 286, 291 ff, 366 

 Dissolved gases, measurement of, 119 



CO2 partial pressure, 121 



oxygen electrode system, 121 



ratios of oxygen, nitrogen, argon, 

 121 

 Distribution patterns of organisms sampled, 



424 

 Dittmar's hypothesis, 110 

 Diversity: see Similarity and diversity 

 Diving chambers, 498 ff 

 Diving saucer, 507 ff 

 Drake Passage, 285 

 Dramsfjord, 43 



Drogues and neutral-buoyant floats, 303 

 Drosophila, 474 

 Dynamic equilibria in three dimensions, 



66 ff 

 Dynamics of exploited fish populations: see 

 Fishery dynamics 



Eastern boundary currents, 253 



biological implications, 276 ff 



density, 262 ff 



flow, 256 ff 



GEK measurements, 257 ff 



oxygen, 263 ff 



phosphate, 265 



poleward, 273 ff 



salinity, 262 



source waters, 254 



sub-surface characteristics, 260 ff 



surface characteristics, 254 ff 

 "Eastropic" expedition, 357, 369 

 Ectocrine, 220 

 Eddy -diffusion coefficients, 68 



Ekman 



transport calculations and upwelling, 



267 ff 

 water-sampling bottle, 125 

 Electrical conductivity, chlorinity, relation 



to, 111, 115 

 Electrodialysis of dissolved organic matter, 



166 

 Elements {see also under their names) 



concentration factors in members of 



marine biosphere, 82 

 distribution in space and time, 20 ff 

 metals concentration, 13 

 plankton composition, 27 ff 

 reactivities, 9 ff 

 residence times in marine environment, 



9ff 

 speciation, 3 



undersaturation degree, 12 

 El Nino condition off Peru, 273 

 Elsinore Sound, primary production meas- 

 urements, 158 

 ' Eltonian" pyramid. 430 

 Endemic plankton species, 382, 390 ff 

 End-point potent iometric titration, 112 

 Energy balance in bio-organisms, 431 

 English Channel 



measurement of primary production, 138 

 spring diatom flowering, 439 

 Engraulis ringens: see Anchovy 

 Enrichment of radioactive substances in 



marine products, 81 ff 

 Enteromorpha seaweeds, 199, 377 

 Equator, compensation depth and thermo- 



cline at, 355 

 Equatorial current systems, 235 

 distribution of properties, 235 ff 

 gross circulation pattern, 236 ff 

 methods of study, 235 ff 

 North and South Equatorial Currents, 



396 

 poleward divergence of surface layers, 



369 

 stability, 240 ff 

 surface temperature annual range, 268 ff, 



270 

 velocity measurements, 236 

 vertical motion, speed of, 268 

 wind stress, 237 ff 

 zonal flow, 244 ff 

 Equatorial ecological zone of zooplankton, 



385, 395 ff 

 Equatorial water-mass, 396 

 "Equipac" expedition, 357 



