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Phytoplankton physiology in a nearshore region of the southern Benguela current
During the summer of 1978-79 diatoms dominated the communities from October to January but microflagellates were dominant in February and March. Low concentrations of ATP, chlorophyll a protein and carbohydrate were measured in Type 1 water with protein/carbohydrate ratios being )1. In Type 2 water...
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| Format: | Thesis |
| Language: | English |
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Department of Biological Sciences
2016
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| _version_ | 1867613285032919040 |
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| access_status_str | Open Access |
| author | Barlow, Raymond Gordon |
| author2 | Mitchell, D T |
| author_browse | Barlow, Raymond Gordon Mitchell, D T |
| author_facet | Mitchell, D T Barlow, Raymond Gordon |
| author_sort | Barlow, Raymond Gordon |
| collection | Thesis |
| description | During the summer of 1978-79 diatoms dominated the communities from October to January but microflagellates were dominant in February and March. Low concentrations of ATP, chlorophyll a protein and carbohydrate were measured in Type 1 water with protein/carbohydrate ratios being )1. In Type 2 water concentrations of chlorophyll a ATP and protein were high and the protein/carbohydrate ratio was)l. Concentrations of chlorophyll a and ATP remained high in Type 3 water but the protein/carbohydrate ratio decreased to <1 due to an increase in the concentration of acid-soluble glucan. It was concluded that the communities were in an active phase of growth in Type 1 and Type 2 water when adequate nutrients were available, but were in a slow-growing phase in Type 3 water when nitrate concentrations were low. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/21423 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:41.762Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Biological Sciences |
| publisherStr | Department of Biological Sciences |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/21423 Phytoplankton physiology in a nearshore region of the southern Benguela current Barlow, Raymond Gordon Mitchell, D T Field, John G Strickland, N Botany Marine Biology During the summer of 1978-79 diatoms dominated the communities from October to January but microflagellates were dominant in February and March. Low concentrations of ATP, chlorophyll a protein and carbohydrate were measured in Type 1 water with protein/carbohydrate ratios being )1. In Type 2 water concentrations of chlorophyll a ATP and protein were high and the protein/carbohydrate ratio was)l. Concentrations of chlorophyll a and ATP remained high in Type 3 water but the protein/carbohydrate ratio decreased to <1 due to an increase in the concentration of acid-soluble glucan. It was concluded that the communities were in an active phase of growth in Type 1 and Type 2 water when adequate nutrients were available, but were in a slow-growing phase in Type 3 water when nitrate concentrations were low. 2016-08-22T12:25:32Z 2016-08-22T12:25:32Z 1981 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/21423 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Botany Marine Biology Barlow, Raymond Gordon Phytoplankton physiology in a nearshore region of the southern Benguela current |
| thesis_degree_str | Doctoral |
| title | Phytoplankton physiology in a nearshore region of the southern Benguela current |
| title_full | Phytoplankton physiology in a nearshore region of the southern Benguela current |
| title_fullStr | Phytoplankton physiology in a nearshore region of the southern Benguela current |
| title_full_unstemmed | Phytoplankton physiology in a nearshore region of the southern Benguela current |
| title_short | Phytoplankton physiology in a nearshore region of the southern Benguela current |
| title_sort | phytoplankton physiology in a nearshore region of the southern benguela current |
| topic | Botany Marine Biology |
| url | http://hdl.handle.net/11427/21423 |
| work_keys_str_mv | AT barlowraymondgordon phytoplanktonphysiologyinanearshoreregionofthesouthernbenguelacurrent |