Articles by Keyword: Mark Recapture

Search results for Mark Recapture

We found 43 results for you
  1. Age and growth of two populations of West Coast steenbras Lithognathus aureti in Namibian waters, based on otolith readings and mark-recapture data

    Age and growth of two populations of West Coast steenbras Lithognathus aureti in Namibian waters, based on otolith readings and mark-recapture data

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Age and growth of West Coast steenbras Lithognathus aureti, sampled from two separate populations (northern and southern) along Namibia's coast, was determined using sectioned otoliths, and the results were validated using mark-recapture data. For both populations, the special three-parameter Von...
  2. Estimating population size of Saddle-billed Storks <em>Ephippiorhynchus senegalensis</em> in southern Kruger National Park, South Africa

    Estimating population size of Saddle-billed Storks <em>Ephippiorhynchus senegalensis</em> in southern Kruger National Park, South Africa

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Counting Saddle-billed Storks in a study area the size of the Kruger National Park, at 2.2 million ha, is difficult because the birds are long-lived, sparse in the landscape and have large home ranges. Aerial surveys conducted to date provide...
  3. Adult Movement and Larval Dispersal of <em> Argyrozona Argyrozona</em> (Pisces: Sparidae) from a Temperate Marine Protected Area

    Adult Movement and Larval Dispersal of <em> Argyrozona Argyrozona</em> (Pisces: Sparidae) from a Temperate Marine Protected Area

    Item type: Journal Article • Journal: African Journal of Marine Science
    Adult emigration and larval dispersal of carpenter Argyrozona argyrozona from the Tsitsikamma National Park (TNP), South Africa, were investigated using mark-recapture data and Acoustic Doppler Current Profiler measurements of currents. Tagging data showed that adult carpenter were mainly resident, with...
  4. Alternate explanations of the dispersal pattern of galjoen <em>Dichistius capensis</em>

    Alternate explanations of the dispersal pattern of galjoen <em>Dichistius capensis</em>

    Item type: Journal Article • Journal: African Journal of Marine Science
    The movement behaviour of galjoen Dichistius capensis (>250mm total length) was studied by using a tag and recapture technique. A total of 25 191 galjoen was tagged at four sites in South Africa. Three of the sites were in fully...
  5. Do dart tags suppress growth of dusky kob <em>Argyrosomus japonicus</em>?

    Do dart tags suppress growth of dusky kob <em>Argyrosomus japonicus</em>?

    Item type: Journal Article • Journal: African Journal of Marine Science
    Growth rates of dusky kob Argyrosomus japonicus calculated from mark-recapture and otolith-reading methods were compared. Mark-recapture data showed that A. japonicus are resident in an area between the Breede River Estuary and Cape Agulhas on the south-east coast of South...
  6. Population size of neonate and juvenile dusky sharks <em>Carcharhinus obscurus</em> in the Port of Ngqura, South Africa

    Population size of neonate and juvenile dusky sharks <em>Carcharhinus obscurus</em> in the Port of Ngqura, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    Identifying nearshore waters that serve as important habitats for neonate and juvenile sharks is crucial for effective fisheries management. This study examined the abundance of neonate and juvenile dusky sharks Carcharhinus obscurus within the Port of Ngqura, on the south-east...
  7. Observations of individual humpback whales utilising multiple migratory destinations in the south-western Indian Ocean

    Observations of individual humpback whales utilising multiple migratory destinations in the south-western Indian Ocean

    Item type: Journal Article • Journal: African Journal of Marine Science
    Movements of humpback whales Megaptera novaeangliae among breeding regions within the southwestern Indian Ocean are poorly understood. Understanding the relationships among breeding regions is critical for effective conservation and management strategies. Through systematic comparisons of molecular genotypes and both systematic...
  8. Transit station or destination? Attendance patterns, movements and abundance estimate of humpback whales off west South Africa from photographic and genotypic matching

    Transit station or destination? Attendance patterns, movements and abundance estimate of humpback whales off west South Africa from photographic and genotypic matching

    Item type: Journal Article • Journal: African Journal of Marine Science
    Humpback whales Megaptera novaeangliae found off west South Africa (WSA) are known to display an atypical migration that may include temporary residency and feeding during spring and summer. At a regional scale there is uncertainty about how these whales relate...
  9. Population dynamics of southern elephant seals: a synthesis of three decades of demographic research at Marion Island

    Population dynamics of southern elephant seals: a synthesis of three decades of demographic research at Marion Island

    Item type: Journal Article • Journal: African Journal of Marine Science
    Southern elephant seal Mirounga leonina numbers declined precipitously throughout most of their circumpolar distribution since the 1950s. A long-term intensive demographic programme was initiated in 1983 on the relatively small population of southern elephant seals at sub-Antarctic Marion Island in...
  10. Movement pattern and home range of Roman <em>Chrysoblephus laticeps</em>

    Movement pattern and home range of Roman <em>Chrysoblephus laticeps</em>

    Item type: Journal Article • Journal: African Journal of Marine Science
    The movement behaviour of adult Roman Chrysoblephus laticeps (Sparidae) was investigated using mark-and-recapture techniques in the Goukamma Marine Protected Area (GMPA) and the Tsitsikamma National Park (TNP) on the South African temperate south coast. The study was designed to improve...