Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumWest, Newman & Company for the trustees of the Museum, 1989 - Natural history |
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Page 448
... 200 Percentage P. panopsus Percentage mud 9 56 54 * 53 * 300 Depth ( m )母 223 248 268 251 Depth ( m ) 400 205 241 0 Range + 223 170-453 120-545 120-545 mud P. panopsus 500 Water depth ( m ) Fig . 6. Mud content of sediment samples and ...
... 200 Percentage P. panopsus Percentage mud 9 56 54 * 53 * 300 Depth ( m )母 223 248 268 251 Depth ( m ) 400 205 241 0 Range + 223 170-453 120-545 120-545 mud P. panopsus 500 Water depth ( m ) Fig . 6. Mud content of sediment samples and ...
Page 449
... m , respectively ) , and the mean mud contents of the sediments in which the species is recorded ( 53 % and 54 % ) and the mean abundance of the species ( 4 % and 3 % ) are also very close . These two areas are separated by approximately ...
... m , respectively ) , and the mean mud contents of the sediments in which the species is recorded ( 53 % and 54 % ) and the mean abundance of the species ( 4 % and 3 % ) are also very close . These two areas are separated by approximately ...
Page 451
... Water depth ( m ) Fig . 9. Percentage of adult valves of Poseidonamicus panopsus ( smoothed 5 - point means ) plotted against water depth . Note that peak values ( > 60 % ) lie around 200 m water depth , which is slightly shallower than ...
... Water depth ( m ) Fig . 9. Percentage of adult valves of Poseidonamicus panopsus ( smoothed 5 - point means ) plotted against water depth . Note that peak values ( > 60 % ) lie around 200 m water depth , which is slightly shallower than ...
Contents
Discussion | 447 |
Family Trachyleberididae SylvesterBradley 1948 | 453 |
Acknowledgements | 456 |
Copyright | |
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Common terms and phrases
1972 Poseidonamicus 200 m water AAIW Abbreviations abundance of Poseidonamicus adductors adult valves allochthonous ancestor Antarctic Intermediate Water Atlantic Deep Water Australasia Bathyal Campanian Cenozoic Chapman & Shannon continental margin continental shelf continental slope deep-water depth range Dingle dissolved oxygen dissolved oxygen values dorsal Eocene genus hinge ears holotype homeomorphy inner shelf internal ocular sinus isobath juvenile lower depth limit Lower Eocene margin of south-western mean mud contents Miocene ml/l Mozambique Channel NADW North Atlantic Deep Orange Shelf area ostracod fauna ostracod population oxygen deficient parameters paratypes Percentage of adult percentage of ostracod plotted against water Poseidonamicus major Benson Poseidonamicus panopsus sp Quaternary relative abundance salinity minimum zone scar separated shallow-water species sighted species smoothed 5-point means South African Museum south-western Africa southern Africa species of Poseidonamicus St Helena Bay Tertiary upper depth limit Walvis Bay water depth Whatley & Coles Whatley et al