Articles by Author: Sh Elwen

Search results for Sh Elwen

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  1. 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...
  2. Cetacean research in the southern African subregion: a review of previous studies and current knowledge

    Cetacean research in the southern African subregion: a review of previous studies and current knowledge

    Item type: Journal Article • Journal: African Journal of Marine Science
    Cetacean research, in terms of the number of papers, and areas for which data are available, has expanded considerably in the southern African subregion in the past decade, especially in the South-West Indian Ocean. We review cetacean research within this...
  3. The first African Marine Mammal Colloquium, South Africa, May 2010

    The first African Marine Mammal Colloquium, South Africa, May 2010

    Item type: Journal Article • Journal: African Journal of Marine Science
    The African Marine Mammal Colloquium (AMMC) was initiated to provide a platform for increased collaboration and communication between researchers working on marine mammals in and around Africa. The first meeting of the AMMC was held at Kleinbaai, South Africa, in...
  4. Pygmy right whale <em>Caperea marginata</em> records from Namibia

    Pygmy right whale <em>Caperea marginata</em> records from Namibia

    Item type: Journal Article • Journal: African Journal of Marine Science
    All known records of pygmy right whales Caperea marginata in Namibia since 1978 are summarised for the first time, including 12 strandings (live and recently dead animals) and skeletal remains from at least eight more individuals. The majority of strandings...
  5. Abundance and degree of residency of humpback dolphins <em>Sousa plumbea</em> in Mossel Bay, South Africa

    Abundance and degree of residency of humpback dolphins <em>Sousa plumbea</em> in Mossel Bay, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    Indian Ocean humpback dolphins Sousa plumbea inhabit nearshore waters from South Africa to eastern India. Humpback dolphins are vulnerable to conservation threats due to their naturally small population sizes and use of nearshore habitats, where human activities are highest. We...
  6. Near-shore distribution of Heaviside’s (<em>Cephalorhynchus heavisidii</em>) and dusky dolphins (<em>Lagenorhynchus obscurus</em>) at the southern limit of their range in South Africa

    Near-shore distribution of Heaviside’s (<em>Cephalorhynchus heavisidii</em>) and dusky dolphins (<em>Lagenorhynchus obscurus</em>) at the southern limit of their range in South Africa

    Item type: Journal Article • Journal: African Zoology
    Photo-identification surveys over three years along 390 km of coastline north of Cape Town, revealed that Heaviside’s dolphin distribution was consistent between years and higher in areas more exposed to swells and with greater long-term availability of small hake Merluccius...
  7. Abundance estimates of an isolated population of common bottlenose dolphins <em>Tursiops truncatus</em> in Walvis Bay, Namibia, 2008–2012

    Abundance estimates of an isolated population of common bottlenose dolphins <em>Tursiops truncatus</em> in Walvis Bay, Namibia, 2008–2012

    Item type: Journal Article • Journal: African Journal of Marine Science
    The coastal population of common bottlenose dolphins Tursiops truncatus found in Namibia is regionally isolated and unique. This population faces several potential anthropogenic threats, especially in Walvis Bay, including boat-based tourism, a commercial harbour undergoing expansion, and aquaculture for oysters...