Articles by Keyword: Se Atlantic

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We found 28 results for you
  1. A demonstration of the hydrographic partition of the Benguela upwelling ecosystem at 26°40'S

    A demonstration of the hydrographic partition of the Benguela upwelling ecosystem at 26°40'S

    Item type: Journal Article • Journal: African Journal of Marine Science
    Continuous CTD data from a series of recent cruises show that the distribution of the water mass characteristics in the central Benguela region from the Orange River mouth (28°38'S) to alvis Bay (22°57'S) is discontinuous in the central and intermediate...
  2. Metabolic adaptations and reduced respiration of the copepod <em>Calanoides carinatus</em> during diapause at depth in the Angola-Benguela Front and northern Benguela upwelling regions

    Metabolic adaptations and reduced respiration of the copepod <em>Calanoides carinatus</em> during diapause at depth in the Angola-Benguela Front and northern Benguela upwelling regions

    Item type: Journal Article • Journal: African Journal of Marine Science
    Stage C5 copepodids and adult females of the herbivorous copepod Calanoides carinatus were sampled in the Angola-Benguela frontal region and northern Benguela upwelling area off Namibia in February–March 2002, using a multiple opening/closing net system. Respiration rates of C5s collected...
  3. The 26 December 2004 Sumatra tsunami recorded on the coast of West Africa

    The 26 December 2004 Sumatra tsunami recorded on the coast of West Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    Analysis of sea-level data obtained from the Atlantic Global Sea Level Observing System (GLOSS) sea-level station at Takoradi, Ghana, West Africa, clearly reveals a tsunami signal associated with the Mw = 9.3 Sumatra earthquake of 26 December 2004 in the...
  4. Migration redefined? Seasonality, movements and group composition of humpback whales <em>Megaptera novaeangliae</em> off the west coast of South Africa

    Migration redefined? Seasonality, movements and group composition of humpback whales <em>Megaptera novaeangliae</em> off the west coast of South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    The migration of Southern Hemisphere humpback whales Megaptera novaeangliae between their feeding and breeding areas has thus far been considered a highly predictable and seasonal event. However, previous observations on the humpbacks that pass through the nearshore waters of the...
  5. First documented southern transatlantic migration of a blue shark <em>Prionace glauca</em> tagged off South Africa

    First documented southern transatlantic migration of a blue shark <em>Prionace glauca</em> tagged off South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    The first documented recapture of a South African-tagged juvenile blue shark Prionace glauca off Uruguay lends weight to the hypothesis of a single blue shark population in the South Atlantic. The presence of neonate blue sharks with umbilical scars and...
  6. Distribution and seasonality of cetaceans in tropical waters between Angola and the Gulf of Guinea

    Distribution and seasonality of cetaceans in tropical waters between Angola and the Gulf of Guinea

    Item type: Journal Article • Journal: African Journal of Marine Science
    The species richness, spatial distribution, seasonality and interspecific associations of cetaceans in tropical oceanic waters between the Gulf of Guinea and Angola were examined using 5 905.3 h of dedicated survey effort collected from 13 platforms of opportunity (geophysical vessels)...
  7. The waters of São Tomé: a calving ground for West African humpback whales?

    The waters of São Tomé: a calving ground for West African humpback whales?

    Item type: Journal Article • Journal: African Journal of Marine Science
    In the Southern Hemisphere, humpback whales Megaptera novaeangliae feed in Antarctic waters during the austral summer and migrate to their breeding grounds in subtropical and tropical waters during the winter. Historical whaling records suggest that the Archipelago of São Tomé...
  8. The dispersion of red knots <em>Calidris canutus</em> in Africa—is southern Africa a buffer for West Africa?

    The dispersion of red knots <em>Calidris canutus</em> in Africa—is southern Africa a buffer for West Africa?

    Item type: Journal Article • Journal: African Journal of Marine Science
    The Siberian subspecies of the red knot Calidris canutus canutus spends the non-breeding season largely in West Africa (Mauritania and Guinea Bissau), where approximately half a million occurred in the 1980s. It was a rarely seen in southern Africa in...
  9. 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...
  10. Age, growth and reproductive biology of the blue shark <em>Prionace glauca</em> in South African waters

    Age, growth and reproductive biology of the blue shark <em>Prionace glauca</em> in South African waters

    Item type: Journal Article • Journal: African Journal of Marine Science
    The age, growth and reproductive biology of the blue shark Prionace glauca from South African waters were assessed using 205 specimens, ranging in total length (TL) from 72 to 313 cm. Greater number of males (120) than females (85) were...