Browsing by Author "Lombard, Amanda"

Now showing 1 - 13 of 13
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    A conservation assessment of the South African azooxanthellate Scleractinia coral fauna
    (2026-10-02) Filander, Zoleka; Lombard, Amanda; Sink, Kerry; Kitahara, Marcelo; Cairns, Stephen
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    Designing Systematic Conservation Assessments that Promote Effective Implementation: Best Practice from South Africa
    (2006-06-03) Knight, Andrew; Cowling, Richard; Desmet, Philip; Lombard, Amanda; Rougert, Mathieu; Botha, Mark; Boshoff, Andre; Castley, Guy; Goodman, Peter; Mackinnon, Kathy; Pierce, Shirley; Sims-Castley, Rebecca; Stewart, Warrick; Von Hase, Amrei
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    The development of a cetacean identikit to inform marine spatial planning in KwaZulu-Natal, South Africa
    (SANBI, 2016-06-09) Newton, Summer; Lombard, Amanda; Findlay, Ken
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    Ecosystem services valuation and ecosystem accounting techniques for marine systems in South Africa
    (SANBI, 2016-06-09) Reed, Jodie; Lombard, Amanda; Findlay, Ken
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    First impressions of benthic biodiversity patterns of the Cape Canyon and its surrounding areas
    (2018-06-20) Filander, Zoleka; Lamont, Tarron; van den Berg, Marcel; Snyders, Laurenne; Lombi, Mfundo; Tutt, Gavin; Cawthra, Hayley; Kirkman, Stephen; Atkinson, Lara; Lombard, Amanda
    The Cape Canyon off the west coast of South Africa is one of the largest known submarine canyons in the country. It extends from 200m depth where its head incises the continental shelf, to 3000m offshore. Although submarine canyons are internationally recognised as sensitive ecosystems and biological hotspots, focused studies are required to validate this view. To increase understanding of the ecological patterns and processes of the Cape Canyon and adjoining areas inshore and offshore of it, hydrographic, oceanographic and biodiversity data were collected during three summer research cruises undertaken during 2016 – 2018. A total of 50 camera and 65 dredge stations were completed under a randomly-stratified design. Preliminary results show that the canyon is predominately unconsolidated with scavengers such as ophuiroidea and decapoda prevalent within habitats ranging from sandy areas, to patches of inshore and offshore mud belts. Furthermore, interesting consolidated habitats were observed at the canyon head and inshore areas, while boulders covered in gorgonians and stylasterines were revealed at <100m in some non-canyon areas. Oceanographic profiles revealing anoxic conditions of bottom layers in near-shore areas were confirmed by the benthic structure in these areas. This new research will contribute to marine biodiversity planning and management efforts.
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    Key challenges in advancing an ecosystem-based approach to marine spatial planning under economic growth imperatives
    (2019-03-27) Lombard, Amanda; Dorrington, Rosemary; Reed, Jodie; Ortega-Cisneros, Kelly; Penry, Gwenith; Pichegru, Lorien; Smit, Kaylee; Vermeulen, Estee; Witteveen, Minke; McInnes, Alistair; Ginsburg, Tayla
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    Marine ecosystem condition in South Africa: Current status and future prospects
    (SANBI, 2016-06-09) Smit, Kaylee; Lombard, Amanda; Bernard, Anthony
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    Marine ecosystem mapping at the Prince Edward Islands
    (2018-06-20) Lombard, Amanda; Bosman, Albe; Dopolo, Mbulelo; Fourie, Fred; Harries, Linda; Holness, Stephen; Makhado, Azwianewi; Meyer, Rory; Pistorius, Pierre; Reisinger, Ryan; Somhlaba, Sobahle; Swart, Sebastiaan; Smith, Melanie
    The Prince Edward Islands are for the first time being included in South Africa’s National Biodiversity Assessment. We build on marine spatial planning work completed for the country’s first offshore Marine Protected Area, proclaimed at the islands in 2013. Habitat and biodiversity data for the surrounding marine ecosystems were updated and collated together with entirely new datasets to produce a marine ecosystem classification and habitat map. Extensive contributions from the research community, together with new data, have allowed identification of Vulnerable Marine Ecosystems, modelling of top predator forage areas, detailed mapping of kelp habitats and refined bathymetry and substrate classification for the island shelf. The approach and results of the classification are described. Under the National Biodiversity Assessment process, the updated spatial information is to be used to assess pressures and protection status of marine ecosystems within the island’s Exclusive Economic Zone.
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    Pelagic bioregionalisation using open-access data for better planning of marine protected area networks
    (2017) Leslie, Roberson; Lagabrielle, Erwann; Lombard, Amanda; Livingstone, Tamsyn; Grantham, Hedley; Harris, Jean
    Systematic conservation planning (SCP) to design marine protected areas (MPAs) has traditionally focused on species distributions or benthic habitat features that drive the determination of conservation priorities. Pelagic ecosystem protection is usually incidental because these ecosystems are often data poor and are difficult to visualize in a planning context. Pelagic ecosystems, however, face increasing and cumulative impacts from threats such as overfishing and climate change, and a precautionary approach is required to protect both known and unknown biodiversity patterns and ecosystem processes. Data-driven pelagic habitat classifications are important when planning for habitat protection in the absence of sufficient in-situ data. In this study, we describe a method for creating a bioregional map of the upper-mixed layer of South Africa's pelagic realm. We selected relevant variables and parameters that best reflect key ecosystem properties at broad, meso, and local scales. We conducted a hierarchal cluster analysis using open-access sea surface temperature (SST), chlorophyll-a (chl-a), net primary productivity (NPP), mean sea level anomalies (MSLA), and seabed slope and depth data. The resulting map delineates three bioregions subdivided into seven biozones and sixteen pelagic habitats within South Africa's continental Exclusive Economic Zone (EEZ). This habitat map was incorporated into SCP of a proposed expanded MPA network that includes offshore protected areas and meets National objectives. The proposed network will increase protection of the pelagic realm (>30 m depth) of the EEZ from 0.002% to 6.0%. We contend that bioregional analyses based on publicly available remote-sensing data are useful for identification of offshore habitats, especially when robust biological data are unavailable, as a framework for ecosystem reporting, and for inclusion in a systematic design for a representative offshore MPA network. Further research should focus on modelling and mapping the permanence of pelagic habitats and different spatio-temporal scales of variability, validating habitat boundaries with biological data, and understanding the threats and efficacy of achieving pelagic protection through management mechanisms like MPAs.
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    Spatial patterns and characterization of benthic epifaunal biodiversity in Algoa Bay
    (SANBI, 2016-06-09) Raven, Hannah; von der Meden, Charles; Lombard, Amanda; Atkinson, Lara
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