Search
Now showing items 1-10 of 12
Jellyfication of marine ecosystems as a likely consequence of overfishing small pelagic fishes: Lessons from the Benguela
(University of Miami, Rosenstiel School of Marine and Atmospheric Science, 2013)
Changes in two contrasting ecosystems of the Benguela upwelling region,
one dominated at mid-trophic level by jellyfishes (Namibia, northern Benguela
ecosystem, where small pelagic fish abundance has been severely depleted) ...
Environmental responses of jellyfish polyps as drivers of medusa populations off the coast of Namibia
(National Inquiry Services Centre, 2018)
Jellyfish 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 ...
Siphonophores from surface waters of the Colombian Pacific Ocean
(Cambridge University Press, 2018)
Siphonophores are colonial hydrozoans that feed on zooplankton including fish larvae, and occur throughout the world’s oceans from surface waters to ocean depths. Here we describe the composition of hyponeustonic siphonophores ...
Reviewing evidence of marine ecosystem change off South Africa
(National Inquiry Services Centre, 2013)
Recent changes have been observed in South African marine ecosystems. The main pressures on these
ecosystems are fishing, climate change, pollution, ocean acidification and mining. The best long-term datasets are
for trends ...
Two new nematode species from Saldanha Bay, South Africa: Perepsilonema benguelae sp. nov. and Leptepsilonema saldanha sp. nov. (Nematoda, Epsilonematidae)
(Magnolia Press, 2010)
Perepsilonema benguelae sp. nov. and Leptepsilonema saldanhae sp. nov. are described and illustrated from coarse sand sediments in Saldanha Bay, along the west coast of South Africa. Perepsilonema benguelae sp. nov. is ...
Diet of whale sharks Rhincodon typus inferred from stomach content and signature fatty acid analyses
(Inter Research, 2013)
Whale sharks Rhincodon typus are large filter-feeders that are frequently observed
feeding in surface zooplankton patches at their tropical and subtropical coastal aggregation sites.
Using signature fatty acid (FA) ...
An insight into the reproductive biology of the bearded goby Sufflogobius bibarbatus
(Wiley, 2013)
Preliminary results obtained from histological analyses of the male reproductive organs, supplemented
with field and behavioural data, indicate that Sufflogobius bibarbatus, a small, slow growing
gobiid exhibiting low ...
A new species of Magelona (Polychaeta: Magelonidae) from southern Namibia
(Iziko Museums of Cape Town, 2010)
A new species of Magelonidae, Magelona debeerei sp. nov., is described and illustrated from grab-samples collected at <100moff the southwest coast of Africa. Magelona debeerei sp. nov. has previously been identified from ...
Beyond the jellyfish joyride and global oscillations: advancing jellyfish research
(Oxford University Press, 2013)
There has been debate in the literature recently about increases in jellyfish populations in response to anthropogenic change, and this has attracted widespread media interest. Despite an international collaborative ...
A modern description of Crambionella stuhlmanni (Scyphozoa: Rhizostomeae) from St. Lucia Estuary, South Africa
(Cambridge University Press, 2011)
A new record of Crambionella stuhlmanni is reported from the east coast of South Africa. The material is described using quantitative morphological data, and mitochondrial (CO1) and nuclear (ITS-1) sequence data. The species ...