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Temporal and spatial patterns in the abundance of jellyfish in the northern Benguela upwelling ecosystem and their link to thwarted pelagic fishery recovery
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BA Flynn --- Department of Biodiversity and Conservation Biology, South Africa AJ Richardson --- Climate Adaptation Flagship, CSIRO Marine and Atmospheric Research, Australia AS Brierley --- Pelagic Ecology Research Group, Scottish Oceans Institute, UK DC Boyer --- National Marine Information and Research Centre (NatMIRC), Namibia BE Axelsen --- , Norway L Scott --- , South Africa NE Moroff --- National Marine Information and Research Centre (NatMIRC), Namibia PI Kainge --- National Marine Information and Research Centre (NatMIRC), Namibia BM Tjizoo --- National Marine Information and Research Centre (NatMIRC), Namibia MJ Gibbons --- Department of Biodiversity and Conservation Biology, South AfricaThere has been debate in the literature about whether jellyfish abundance has increased in the northern Benguela upwelling system, or not, over the past five decades and what impact they are having on pelagic fish. Here we review old expedition... -
Environmental responses of jellyfish polyps as drivers of medusa populations off the coast of Namibia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Ziegler --- Department of Biodiversity and Conservation Biology, South Africa MJ Gibbons --- Department of Biodiversity and Conservation Biology, South AfricaJellyfish populations in the southeastern Atlantic off the coast of Namibia have increased subsequent to the decline of small pelagic fisheries at the end of the 1960s, although the environment there has also become warmer and the waters off Walvis... -
Cross-shelf movement of Chrysaora fulgida (Scyphozoa; Discomedusae) off Namibia inferred from stable isotopes (δ15N and δ13C)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: H Skrypzeck --- , South Africa CD van der Lingen --- , South Africa MJ Gibbons --- , South AfricaLarge and small specimens of two species of metagenic Scyphozoa (true jellyfishes) can be found in nearshore waters off central Namibia throughout the year. Whereas populations of Chrysaora africana are largely restricted to inshore waters, C. fulgida occurs across the...