Catalogus

Zoeken

Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.

Boekenmand

Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).

RSS

Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.

log in

Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]

mandje (0): toevoegen | toon

---

Copepod succession in two South African estuaries Wooldridge, T.; Melville-Smith, R. (1979). Copepod succession in two South African estuaries. J. Plankton Res. 1(4): 329-341 In: Journal of Plankton Research. Oxford University Press: New York,. ISSN 0142-7873; e-ISSN 1464-3774, meer

---

Beschikbaar in	Auteurs
VLIZ [ aanvragen ]

---

Trefwoorden

Aquatic communities > Plankton Dominance hierarchies Environmental effects Environmental effects Environmental effects Environmental effects Interspecific relationships > Competition Processes > Acquisition > Acquisition of ownership > Succession PSW, South Africa, Cape Prov., Sundays Estuary PSW, South Africa, Cape Prov., Swartkops Estuary Taxa > Species > Introduced species Temporal variations > Periodic variations > Seasonal variations Water bodies > Coastal waters > Coastal landforms > Coastal inlets > Estuaries Acartia longipatella Connell & Grindley, 1974 [WoRMS]; Acartia natalensis Connell & Grindley, 1974 [WoRMS]; Copepoda [WoRMS]; Crustacea [WoRMS]; Pseudodiaptomus hessei (Mrázek, 1894) [WoRMS] Sundays Estuary [Marine Regions]; Zwartkops Estuary [Marine Regions] Brak water

---

Auteurs		Top
Wooldridge, T. Melville-Smith, R.

---

Abstract

The seasonal succession of copepod species was studied from November 1976 through October 1978 in the Swartkops and Sundays River estuaries, South Africa. Acartia natalensis appeared in the plankton in spring and reaches maximum abundance during summer and autumn. It was replaced by A. Longipatella in late autumn which reached maximum abundance in winter and spring. Cycles of dominance are regulated by the interaction of temperature, salinity and competition between the two species. A. Natalensis is more tolerant of low salinity and the replacement of A. Longipatella by A. Natalensis starts in the upper estuary and spreads seawards. Maximum abundance of A. Natalensis is attained in water of lower salinity than in the case of A. Longipatella. In the Sundays Estuary A. Natalensis appeared briefly in the latter half of the study and in the upper and middle estuary only. In the lower estuary A. Longipatella was present during all seasons. This was due to the absence of competition from A. Natalensis, high salinity and lower summer temperatures due to marine influence. A third species of copepod, Pseudodiaptomus hessei functions as a pioneer species, exploiting 'new water' after flooding or strong freshwater inflow. High abundance may therefore occur during any season and no competition between P. Hessei and either species of Acartia was observed.

---

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid

Top | Auteurs