Ecosystem considerations of the kwaZulu-Natal sardine run

African Journal of Marine Science

Volumn 32, Issue 2, 2010, Pages 413-421

  Hutchings, L ^a,b   Morris, T ^c   van der Lingen, C D ^b,d   Lamberth, S J ^d,e   Connell, A D ^e   Taljaard, S ^f   van Niekerk, L ^f  

^a Oceans and Coasts   (South Africa)

^b UNIVERSITY OF CAPE TOWN   (South Africa)

^c PORT ELIZABETH MUSEUM   (South Africa)

^d Branch Fisheries   (South Africa)

^e SOUTH AFRICAN INSTITUTE FOR AQUATIC BIODIVERSITY   (South Africa)

^f DSI CSIR Nanotechnology Innovation Centre   (South Africa)

Author keywords

Competition; Nitrogen sources; Predators; Relative economic value; Sardine run; South African east coast

Indexed keywords

CLUPEOID; COASTAL ZONE; COMPETITION (ECOLOGY); DISCHARGE; ECOLOGICAL IMPACT; ECOSYSTEM APPROACH; ESTIMATION METHOD; GROUNDWATER; LIFE CYCLE; MAGNITUDE; NICHE PARTITIONING; NITROGEN; OLIGOTROPHIC ENVIRONMENT; PELAGIC ENVIRONMENT; PREDATOR-PREY INTERACTION; RUNOFF; SOCIOECONOMIC IMPACT; STORMWATER; TROPHIC LEVEL; UPWELLING;

KWAZULU-NATAL; SOUTH AFRICA;

SARDINOPS SAGAX;

EID: 78149433924     PISSN: 1814232X     EISSN: 18142338     Source Type: Journal    
DOI: 10.2989/1814232X.2010.502644     Document Type: Article

References (44)

1. Andrews WRH, Hutchings L. 1980. Upwelling in the southern Benguela Current. Progress in Oceanography 9: 1-81.
2. Armstrong, MJ, Chapman P, Dudley SFJ, Hampton I, Malan PE. 1991. Occurrence and population structure of pilchard Sardinops ocellatus, round herring Etremeus whiteheadi and anchovy Engraulis capensis off the east coast of Southern Africa. South African Journal of Marine Science 11: 227-249.
3. Asano T, Burton FL, Leverenz HL, Tsuchihashi R, Tchobanoglous G (eds). 2007. Water reuse: issues, technologies, and applications (1st edn). New York: Metcalf and Eddy, Inc., McGraw-Hill.
4. Beckley L, Connell A. 1996. Early life history of elf Pomatomus saltatrix off the east coast of South Africa. Australian Journal of Marine and Freshwater Research 47: 319-322.
5. Begg GW. 1978. Estuaries of Natal. Natal Town and Regional Planning Report No. 41, Pietermaritzburg.
6. Blaxter JHR, Hunter JR. 1982. The biology of clupeoid fishes. Advances in Marine Biology 20: 1-223.
7. Campbell EE, Bate GC. 1991a. Ground water in the Alexandria dune field and its potential influence on the adjacent surf-zone. Water SA 17: 155-160.
8. Campbell EE, Bate GC. 1991b. The flora of the sandy beaches of southern Africa. IV. The east coast microflora. Report 28. Port Elizabeth: Institute for Coastal Research, University of Port Elizabeth.
9. Coetzee JC, Merkle D, de Moor CL, Twatwa NM, Barange M, Butterworth DS. 2008. Refined estimates of South African pelagic fish biomass from hydro-acoustic surveys: quantifying the effects of target strength, signal attenuation and receiver saturation. African Journal of Marine Science 30: 205-217.
10. Coetzee JC, Merkle D, Hutchings L, van der Lingen CD, van den Berg M, Durholtz MD. 2010. The 2005 KwaZulu-Natal sardine run survey sheds new light on the ecology of small pelagic fish off the east coast of South Africa. African Journal of Marine Science 32: 337-360.
11. Connell AD. 2010. A 21-year ichthyoplankton collection confirms sardine spawning in KwaZulu-Natal waters. African Journal of Marine Science 32: 331-336.
12. de Moor CL, Butterworth DS, Coetzee JC. 2008. Revised estimates of abundance of South African sardine and anchovy from acoustic surveys adjusting for echosounder saturation in earlier surveys and attenuation effects for sardine. African Journal of Marine Science 30: 219-232.
13. de Villiers S, Thiart C. 2007. The nutrient status of South African rivers: concentrations, trends and fluxes from the 1970's to 2005. South African Journal of Science 103: 343-349.
14. Dicken ML. 2010. Socio-economic aspects of boat-based ecotourism during the sardine run within the Pondoland Marine Protected Area, South Africa. African Journal of Marine Science 32: 405-411.
15. Dudley SFJ, Cliff G. 2010. Influence of the annual sardine run on catches of large sharks in the protective gillnets off KwaZulu-Natal, South Africa, and the occurrence of sardine in shark diet. African Journal of Marine Science 32: 383-397.
16. DWAF (Department of Water Affairs and Forestry). 2004a. Thukela Water Project Decision Support Phase. Reserve Determination Model. Volume 1: Appendices to Thukela Estuarine Flow Requirements. PBV000-00-10307. Directorate of National Water Resource Planning. Pretoria: DWAF.
17. DWAF (Department of Water Affairs and Forestry). 2004b. Water Quality Management Series Sub-Series No. MS 13.4. Operational policy for the disposal of land-derived water containing waste to the marine environment of South Africa - Appendices. Edition 1. Pretoria: DWAF. Available at http://www.dwaf.gov.za/Dir_WQM/docs/marine/MarineWasteAppendicesOct04.pdf [accessed September 2010].
18. DWAF (Department of Water Affairs and Forestry). 2007. Determination of the preliminary ecological reserve on a intermediate level for Mdloti Estuary. Final Report submitted to Directorate Resource Directed Measures, 2007. Pretoria: DWAF.
19. FAO. 1992. Wastewater treatment and use in agriculture. Prepared by MB Pescod. FAO Irrigation and Drainage Paper No. 47. Rome: Food and Agriculture Organization of the United Nations.
20. Fennessy ST, Pradervand P, de Bruyn PA. 2010. Influence of the sardine run on selected nearshore predatory teleosts in KwaZulu-Natal. African Journal of Marine Science 32: 375-382.
21. Hampton I. 1987. Acoustic study on the abundance and distribution of anchovy spawners and recruits in South African waters. South African Journal of Marine Science 5: 901-918.
22. Hampton I. 1992.The role of acoustic surveys in the assessment of pelagic resources on the South African continental shelf. South African Journal of Marine Science 12: 1031-1050.
23. James AG, Probyn T, Hutchings L. 1989. Laboratory-derived carbon and nitrogen budgets for the omnivorous planktivore Engraulis capensis Gilchrist. Journal of Experimental Marine Biology and Ecology 131: 124-145.
24. Jezewski WA, Pyke PD, Roberts CPR. 1984. Estuarine and lake freshwater requirements. Technical Report No. TR123. Pretoria: Department of Water Affairs and Forestry.
25. KwaZulu-Natal Tourism Authority. 2009. Catalogue of KwaZulu-Natal Tourism Authority research reports Available at http://www.zulu.org.za/index.php?investors [accessed at 10 July 2009].
26. Lamberth SJ, Drapeau L, Branch GM. 2009. The effects of altered freshwater inflows on catch rates of non-estuarine-dependent fish in a multispecies nearshore line-fishery. Estuarine, Coastal and Shelf Science 84: 527-538.
27. Lutjeharms JRE. 2008. The Agulhas Current. New York-Berlin-Heidelberg: Springer.
28. Lutjeharms JRE, Grundlingh ML, Carter RA. 1989. Topographically induced upwelling in the Natal Bight. South African Journal of Science 85: 310-316.
29. Lutjeharms JRE, Valentine HR, van Ballegooyen R. 2000. The hydrography and water masses of the Natal Bight, South Africa. Continental Shelf Research 20: 1907-1939.
30. Meyer AA, Lutjeharms JRE, de Villiers S. 2002. The nutrient characteristics of the Natal Bight, South Africa. Journal of Marine Systems 35: 11-37.
31. Mketsu QK. 2008. Comparative dietary analysis of sardine and other clupeids from presumed mixed shoals off South Africa's east coast. MSc thesis, University of Cape Town, South Africa.
32. Myeza J, Mason RB, Peddemors VM. 2010. Socio-economic implications of the KwaZulu-Natal sardine run for local indigenous communities. African Journal of Marine Science 32: 399-404.
33. O'Donoghue SH, Whittington PA, Dyer BM, Peddemors VM. 2010. Abundance and distribution of avian and marine mammal predators of sardine observed during the 2005 KwaZulu-Natal sardine run survey. African Journal of Marine Science 32: 361-374.
34. Pearce AF. 1977. The shelf circulation off the east coast of South Africa. CSIR Research Report No. 361. Stellenbosch: Council for Scientific and Industrial Research.
35. RSA (Republic of South Africa). 2004. Revision of general author-isations in terms of section 39 of the National Water Act, 1998 (Act no. 36 of 1998) Requirements for the purification of waste water or effluent. Gazette No. 26187, Government Notice 399.
36. Sedlak RI (ed.). 1991. Phosphorus and nitrogen removal from municipal wastewater. Principles and practice (2nd edn). New York: Lewis Publishers.
37. Shannon LJ, Moloney C, Jarre, A, Field JG. 2003. Trophic flows in the southern Benguela during the 1980s and 1990s. Journal of Marine Systems 39: 83-116.
38. van Ballegooyen RC, Taljaard S, van Niekerk L, Lamberth SJ, Theron AK, Weerts SP. 2007. Freshwater flow dependency in South African marine ecosystems: a proposed assessment framework and initial assessment of South African marine ecosystems. WRC Report No. KV 191/07. Pretoria: Water Research Commission.
39. van der Lingen CD. 1999. The feeding ecology of, and carbon and nitrogen budgets for, sardine Sardinops sagax in the southern Benguela upwelling ecosystem. PhD thesis, University of Cape Town, South Africa.
40. van der Lingen CD. 2002. Diet of sardine Sardinops sagax in the southern Benguela upwelling ecosystem. South African Journal of Marine Science 24: 301-316.
41. van der Lingen CD, Coetzee JC, Hutchings L. 2010. Overview of the KwaZulu-Natal sardine run. African Journal of Marine Science 32: 271-277.
42. van der Lingen CD, Hutchings L, Field JG. 2006. Comparative trophodynamics of anchovy Engraulis encrasicolus and sardine Sardinops sagax in the southern Benguela: are species alternations between small pelagic fish trophodynamically mediated? African Journal of Marine Science 28: 465-477.
43. Watermeyer KE, Shannon LJ, Griffiths CL. 2008. Changes in the trophic structure of the southern Benguela before and after the onset of industrial fishing. African Journal of Marine Science 30: 351-382.
44. WRC (Water Research Centre). 1990. Design guide for marine treatment schemes. Volume I: Introduction and Volume II: Environmental design and data collection. Report No. UM 1009. Swindon: Water Research Centre.