Articles by Keyword: Larval Dispersal

Search results for Larval Dispersal

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  1. Nearshore surface current patterns in the Tsitsikamma National Park, South Africa

    Nearshore surface current patterns in the Tsitsikamma National Park, South Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    The pattern of surface currents in the Tsitsikamma National Park, South Africa, was studied with holey-sock drogues released in batches of up to four at a time, from 1996 and 1998. Drogues were left to drift for either 6 or...
  2. Long-distance migration of the rock lobster <em>Palinurus delagoae</em> off South Africa and Moçambique

    Long-distance migration of the rock lobster <em>Palinurus delagoae</em> off South Africa and Moçambique

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Long-distance migration patterns of deep-water rock lobster Palinurus delagoae were investigated using tagrecapture data obtained over a period of 6 years (1995–2000). Of 7 654 animals tagged, 363 (4.7%) were recovered from South African and seven (0.1%) from Moçambican waters...
  3. Shallow-water, nearshore current dynamics in Algoa Bay, South Africa, with notes on the implications for larval fish dispersal

    Shallow-water, nearshore current dynamics in Algoa Bay, South Africa, with notes on the implications for larval fish dispersal

    Item type: Journal Article • Journal: African Journal of Marine Science
    Nearshore currents play a vital role in the transport of eggs and larval stages of fish. However, little is known about their complexity and the implications for dispersal of fish larvae. The study describes the complexity of the shallow nearshore...
  4. Phylogeographic structure of the caridean shrimp <em>Palaemon peringueyi</em> in South Africa: further evidence for intraspecific genetic units associated with marine biogeographic provinces

    Phylogeographic structure of the caridean shrimp <em>Palaemon peringueyi</em> in South Africa: further evidence for intraspecific genetic units associated with marine biogeographic provinces

    Item type: Journal Article • Journal: African Journal of Marine Science
    Recent genetic studies have shown that most widely distributed, passively dispersing invertebrates in southern Africa have regional intraspecific units that are associated with the three main marine biogeographic provinces (cool-temperate, warm-temperate and subtropical). The caridean shrimp Palaemon peringueyi also occurs...
  5. Long current to nowhere? — Genetic connectivity of <em>Jasus tristani</em> populations in the southern Atlantic Ocean

    Long current to nowhere? — Genetic connectivity of <em>Jasus tristani</em> populations in the southern Atlantic Ocean

    Item type: Journal Article • Journal: African Journal of Marine Science
    The commercially exploited spiny lobster Jasus tristani has a disjunct distribution in the southern Atlantic Ocean, with populations occurring at the Tristan da Cunha Archipelago, Gough Island and on Vema Seamount. A distance of 2 000km separates Vema and the...
  6. Historical demography of southern African patellid limpets: congruence of population expansions, but not phylogeography

    Historical demography of southern African patellid limpets: congruence of population expansions, but not phylogeography

    Item type: Journal Article • Journal: African Journal of Marine Science
    Global climatic oscillations have shaped the contemporary genetic structure of marine taxa in different ways. Previous demographic studies have indicated that various intertidal marine species display genetic signatures of demographic expansion that either pre- or postdate the Last Glacial Maximum...
  7. A comparison of genetic structure in two low-dispersal crabs from the Wild Coast, South Africa

    A comparison of genetic structure in two low-dispersal crabs from the Wild Coast, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    The Wild Coast in south-eastern South Africa is strongly influenced by the warm, southward-flowing Agulhas Current. This current has a significant impact on dispersal in the coastal biota of the region, and facilitates high levels of connectivity among populations. However,...
  8. The ‘suitcase hypothesis’: Can entrainment of meroplankton by eddies provide a pathway for gene flow between Madagascar and KwaZulu-Natal, South Africa?

    The ‘suitcase hypothesis’: Can entrainment of meroplankton by eddies provide a pathway for gene flow between Madagascar and KwaZulu-Natal, South Africa?

    Item type: Journal Article • Journal: African Journal of Marine Science
    Similarities in the marine fauna found off the coasts of southern Madagascar and KwaZulu-Natal Province (KZN), South Africa, led to the development of the ‘suitcase project,’ with the aim of establishing whether eddies that form off southern Madagascar may package...
  9. Comparative genetic structure in two high-dispersal prawn species from the south-west Indian Ocean

    Comparative genetic structure in two high-dispersal prawn species from the south-west Indian Ocean

    Item type: Journal Article • Journal: African Journal of Marine Science
    The penaeid prawns Fenneropenaeus indicus and Metapenaeus monoceros support shallow-water prawn fisheries in the south-west Indian Ocean. They are sympatric and have similar life histories, including developmental stages that depend on estuarine and marine habitats and a short dispersal duration...
  10. The function of the hygroscopic awn of <em>Themeda triandra</em> <sup>1</sup>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The hygroscopic awn of species such as Themeda triandra is widely believed to be a device ensuring the early burial of its seed. This belief has been extensively tested and no tendency for such self‐burial has been found. It has...