Seasonal changes in selected physico-chemical and biological variables in the temporarily open/closed kasouga estuary, eastern cape, south africa

African Journal of Aquatic Science

Volumn 27, Issue 2, 2002, Pages 117-123

  Froneman, P W ^a  

^a RHODES UNIVERSITY   (South Africa)

Author keywords

Kasouga; Plankton; South Africa; Temporarily open closed estuary

Indexed keywords

EID: 85008755714     PISSN: 16085914     EISSN: None     Source Type: Journal    
DOI: 10.2989/16085914.2002.9626583     Document Type: Article

References (33)

1. ADAMS J, BATE G and O’CALLAGAN M (1999) Estuarine microalgae. In ALLANSON BR and BAIRD D (eds) Estuaries of South Africa. Cambridge University Press, Cambridge, United Kingdom, pp 91-100.
2. ALLANSON BR and READ GHL (1987) The response of estuaries along the south-eastern coast of South Africa to marked variation in freshwater inflow. Institute for Water Research, Rhodes University, Report 2/87, 67 pp.
3. BENNETT BA and BRANCH GM (1990) Relationships between production and consumption of prey species by resident fish in the Bot, a cool temperate South African estuary. Estuarine, Coastal and Shelf Science 31: 139-155.
4. BOOTH BC (1978) The use of epifluoresence for analysing oceanic phytoplankton communities. Botanica Marina 30: 101-108.
5. CAMPBELL EE, KNOOP WT and BATE CG (1991) A comparison of phytoplankton biomass and primary production in three Eastern Cape estuaries. South African Journal of Science 87: 9-264.
6. COWLEY PD (1998) Fish Populations Dynamics in a Temporarily Open/Closed South African Estuary. PhD Thesis, Rhodes University, Grahamstown, South Africa.
7. DAY JH (1981) Estuarine Ecology with Particular Reference to Southern Africa. AA Balkema, Cape Town, 411 pp.
8. FOGG GE (1991) The phytoplanktonic ways of life. New Phytologist 118: 191-232.
9. FORTIER L, LE FEVRE J and LEGENDRE L (1994) Export of biogenic carbon to fish and the deep ocean: the role of large planktonic microphages. Journal of Plankton Research 16: 809-839.
10. FRONEMAN PW (2000) Preliminary study on the food web structure of two contrasting estuaries along the Eastern Cape coast. African Journal of Aquatic Science 25: 13-22.
11. FRONEMAN PW (2001) Seasonal changes in the zooplankton biomass and grazing in the temperate Kariega estuary (South Africa). Estuarine, Coastal and Shelf Science 52: 543-553.
12. FRONEMAN PW (in press) Response of the biology to three different hydrological phases in the temporarily open/closed Kasouga estuary. Estuarine, Coastal and Shelf Science.
13. FRONEMAN PW and McQUAID CD (1997) Preliminary investigation of the ecological role of microzooplankton in the Kariega estuary, South Africa. Estuarine, Coastal and Shelf Science 45: 689-695.
14. FRONEMAN PW and PERISSINOTTO R (1996) Structure and grazing of the microzooplankton communities of the Subtropical Convergence and a warm-core eddy in the Atlantic sector of the Southern Ocean. Marine Ecology Progress Series 135: 237-245.
15. GRANGE N and ALLANSON BR (1995) The influence of freshwater inflow on the nature, amount and distribution of seston in estuaries of the Eastern Cape, South Africa. Estuarine, Coastal and Shelf Science 40: 403-420.
16. GRANGE N, WHITFIELD AK, DE VILLIERS CJ and ALLANSON BR (2000) The response of two South African east coast estuaries to altered river flow regimes. Aquatic Conservation: Marine and Freshwater Ecosystems 10: 155-177.
17. HAAS LW (1982) Improved epifluorescent microscopy for observing planktonic micro-organisms. Annuals de Institute Oceanographie 58: 261-266.
18. HARRISON TD and WHITFIELD AK (1995) Fish community structure in three temporarily open/closed estuaries on the Natal coast. Ichthyological Bulletin of the JLB Smith Institute of Ichthyology 64: 1-80.
19. HOLM-HANSEN O and RIEMANN B (1978) Chlorophyll-a determination: improvements in methodology. Oikos 30: 438-447.
20. HILMER T (1990) Factors Influencing the Estimation of Primary Production in Small Estuaries. PhD Thesis, University of Port Elizabeth, Port Elizabeth, South Africa.
21. JERLING HL and WOOLDRIDGE TH (1995) Plankton distribution and abundance in the Sundays River estuary, South Africa, with comments on potential feeding interactions. South African Journal of Marine Science 15: 169-184.
22. KOPKE D (1988) The climate of the Eastern Cape. In Bruton MN and Gess FW (eds) Towards an Environmental Plan for the Eastern Cape. Rhodes University, Grahamstown, South Africa, pp 42-50.
23. MALLIN MA (1994) Phytoplankton ecology of North Carolina estuaries. Estuaries 17: 561-574.
24. MALLIN MA and PAERL HW (1994) Planktonic transfer in an estuary: seasonal, diel and community effects. Ecology 75: 2168-2184.
25. MALLIN MA, PAERL HW and RUDEK J (1991) Seasonal phytoplankton composition, productivity and biomass in the Neuse River estuary, North Carolina. Estuarine Coastal and Shelf Science 32: 609-623.
26. NOZIAS C, PERISINOTTO R and MUNDREE S (2001) Annual cycle of microalgal biomass in a South African temporarily-open estuary: nutrients versus light limitation. Marine Ecology Progress Series 223: 39-48.
27. PERISSINOTTO R, WALKER DR, WEBB P, WOOLDRIDGE TH and BALLY R (2000) Relationships between zoo-and phytoplankton in a warm temperate, semi-permanently closed estuary, South Africa. Estuarine Coastal and Shelf Science 51: 1-11.
28. STOECKER DK and CAPUZZO JM (1990) Predation on protozoa: its importance to zooplankton. Journal of Plankton Research 1: 891-908.
29. WALKER DR, PERISSINOTTO R and BALLY RPA (2001) Phytoplankton/protozoan dynamics in the Nyara estuary, a small temporarily open system in the eastern Cape (South Africa). African Journal of Aquatic Science 26: 31-38.
30. WHITFIELD AK (1992). A characterization of southern African estuarine systems. South African Journal of Science 18: 89-103.
31. WHITFIELD AK (1995) Available scientific information on individual South African estuaries. Water Research Commission Report 577/1/95, Pretoria, 204 pp.
32. WOOLDRIDGE T (1999) Estuarine zooplankton community structure and dynamics. In Allanson BR and Baird D (eds) Estuaries of South Africa. Cambridge University Press, Cambridge, United Kingdom, pp 141-166.
33. WOOLDRIDGE TH and McGWYNNE L (1996) The estuarine environment. Institute for Coastal Research Report No. C31, Port Elizabeth, 91 pp.