Annals of the South African Museum, Volume 103, Issue 7West, Newman & Company for the trustees of the Museum, 1994 - Natural history |
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Page 412
... ratio of 8 : 1 . Theoretically , any post - mortem partitioning by bottom currents will disturb this ratio , so that values < 8 : 1 will indicate populations from which early instars have been winnowed , and values > 8 : 1 environments ...
... ratio of 8 : 1 . Theoretically , any post - mortem partitioning by bottom currents will disturb this ratio , so that values < 8 : 1 will indicate populations from which early instars have been winnowed , and values > 8 : 1 environments ...
Page 430
... ratios . Sites with the lowest ratios are intuitively taken as those most subjected to higher sea - floor winnowing , and these all occur south of 30 ° S . The most - affected ... ratio 12- 10- ∞ 6 + 430 ANNALS OF THE SOUTH AFRICAN MUSEUM.
... ratios . Sites with the lowest ratios are intuitively taken as those most subjected to higher sea - floor winnowing , and these all occur south of 30 ° S . The most - affected ... ratio 12- 10- ∞ 6 + 430 ANNALS OF THE SOUTH AFRICAN MUSEUM.
Page 431
South African Museum. 16- 14- Juvenile adult ratio 12- 10- ∞ 6 + 2 CHILDS BANK 0+ 18 T 20 22 24 26 28 30 32 34 36 Latitude ( ° S ) Fig . 34. Latitudinal distribution of juvenile : adult ratios in samples containing > 100 specimens ...
South African Museum. 16- 14- Juvenile adult ratio 12- 10- ∞ 6 + 2 CHILDS BANK 0+ 18 T 20 22 24 26 28 30 32 34 36 Latitude ( ° S ) Fig . 34. Latitudinal distribution of juvenile : adult ratios in samples containing > 100 specimens ...
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100 specimens abundant species Ambostracon flabellicostata Ambostracon keeleri apatite Australoecia fulleri Austroaurila rugosa authigenic Average S.D. Range Bairdoppilata simplex barren sites bottom sediments Buntonia bremneri Buntonia deweti Buntonia gibbera Buntonia namaquaensis Buntonia rogersi Buntonia rosenfeldi CaCO3 Cape Columbine Cape Peninsula cent Chrysocythere craticula continental shelf Coquimba birchi Correlation coefficients Cytherella dromedaria Cytherella namibensis Cytheropteron trinodosum Cytheropteron whatleyi Dingle dissolved oxygen Doratocythere exilis environmental parameters fauna Glauconite Henryhowella melobesioides Incongruellina venusta Indet Krithe capensis Krithe spatularis Kunene River Latitude latitudinal Lüderitz Macrocypris cf mean values metuenda ml/l MORG Namaqualand Neocaudites lordi Neocaudites osseus Neocytherideis boomeri Opal Orange River organic matter ostracod ostracod assemblages Palmoconcha walvisbaiensis Paracypris lacrimata Phosphorite Poseidonamicus panopsus Pseudokeijella lepralioides Range Average S.D. robusta Ruggieria cytheropteroides S.D. Range Average salinity sample sites sand sea-floor sediments sediments south-western Africa SWCA taxa temperature and salinity terrigenous upwelling Urocythereis arcana Walvis Bay Walvis Ridge Xestoleberis africana Xestolebris hartmanni