Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 429
... shelf and slope than the inner shelf ( Blackburn 1979 ) , whereas in the southern Benguela region copepod biomass is highest over the shelf ( Pillar 1986 ) and is associated both with enhanced primary productivity and pelagic fish ...
... shelf and slope than the inner shelf ( Blackburn 1979 ) , whereas in the southern Benguela region copepod biomass is highest over the shelf ( Pillar 1986 ) and is associated both with enhanced primary productivity and pelagic fish ...
Page 450
... shelf ( > 500 valves / 100 g in < 200 m water depths ) , and fall rapidly towards the outer shelf and slope . Concomitant with this decline in the overall abundance of the ostracod fauna , there is a marked increase in the percentage of ...
... shelf ( > 500 valves / 100 g in < 200 m water depths ) , and fall rapidly towards the outer shelf and slope . Concomitant with this decline in the overall abundance of the ostracod fauna , there is a marked increase in the percentage of ...
Page 451
... Shelf ( 32 ° S ) . The upper depth limit of P. panopsus on the Orange Shelf is 170 m , and this occurs at approximately the same depth as two important changes in physico - chemical parameters : the base of the inner shelf thermocline ...
... Shelf ( 32 ° S ) . The upper depth limit of P. panopsus on the Orange Shelf is 170 m , and this occurs at approximately the same depth as two important changes in physico - chemical parameters : the base of the inner shelf thermocline ...
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Common terms and phrases
adult adventive lobe Albian ammonites Atlantic Benson body chamber bottom depth Campanian Cape Town catch rates Cenomanian Central Asia Chiplonkar & Ghare compressed Coniacian continental diameter Diaphus dimorphism distribution Engonoceratidae fauna flanks genus Group holotype Hoplitoplacenticeras Hulley Hyatt Hypengonoceras decaryi Collignon Iljin intraspecific variation isobath Karamaites Kennedy & Wright Klinger Lampanyctodes hectoris lanternfish lateral lobe lateral ornament lateral tubercles Maastrichtian Macroconch Madagascar Marine Metaplacenticeras Michailova Microconch with type myctophid oceanic ontogenetic changes ontogeny Orange Shelf ostracod Parengonoceras Paulcke pelagic phragmocone Placenticeras kaffrarium Etheridge Placenticeras polyopsis Placenticeratidae polyopsis Dujardin Proplacenticeras pseudoceanic ribs saddle Santonian separated Shannon shell smooth South African Museum south-western Africa southern Benguela region Spath specimens specimens.h¹ stage stations subkaffrarium sutural ontogeny suture suture line SW Cape temperature text-fig Turonian Type species umbilical tubercles umbilicus umkwelanense Upper Albian Upper Campanian Upper Cretaceous upwelling venter ventral clavi Whatley whorl section Wiedmann Zululand