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Browsing Conference Publications by Impact Area "Coastal Systems"

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Advancing ecosystem accounting in estuaries: Swartkops Estuary case study

Author: Taljaard, Susan ; Van Niekerk, Lara ; Adams, JB ; Riddin, T Date: Mar 2023 Rapid degradation of ecosystems and loss of ecosystem services have sparked interest in developing approaches to report and integrate such change with socio-economic information systems, such as the System of National Accounts. Here we describe ... Read more
ASTRAL pool of technologies: Digital twins to support IMTA within the Atlantic area

Author: Pias, M ; Orazi, G ; Drews, P ; Paris, M ; Dupont, C ; Smith, Marie E ; Michalek, K ; Lain, L ; Martinez, J ; Khelifi, I Date: Sep 2022 Presentation on the ASTRAL pool of technologies: Digital twins to support IMTA within the Atlantic area. Read more
Case studies of modified South African estuaries and implications for ecological restoration in these systems

Author: Weerts, Steven P ; MacKay, F ; Taljaard, Susan ; Van Niekerk, Lara Date: Sep 2019 Presentation on the case studies of modified South African estuaries and implications for ecological restoration in these systems. Read more
Climate change and the Knysna Estuary

Author: James, J ; Van Niekerk, Lara ; Lamberth, S Date: 2023 Estuaries are shallow coastal environments that are influenced by both tidal action and freshwater inflow. As a result of the mixing of marine and fresh waters, estuaries are naturally dynamic, unstable environments with physico-chemical ... Read more
Coastal vulnerability and climate change adaptation in South Africa: Remote sensing challenges and opportunities

Author: Lück-Vogel, Melanie Date: May 2022 South Africa is nestled between the Atlantic, the Southern and the Indian Ocean. Its coast is about 3000 km long and comprises 300 estuaries. Its coast stretches across three bioclimatic regions, namely the Cool Temperate South-West, a Warm ... Read more
Compound flooding due to interaction of waves and river discharge at Breede Estuary, South Africa

Author: Kupfer, S ; Santamaria-Aguilar, S ; Pieterse, Amy ; Lück-Vogel, Melanie ; Vafeidis, AT Date: May 2022 Recent studies on compound flooding have considered the interaction of storm-tide and fluvial or pluvial flood drivers, whereas the contribution of waves to compound flooding so far has been neglected. In this study, we investigate compound ... Read more
Disaggregation and assessment of estuarine pressures at the country-level to better inform management and resource protection – the South African experience

Author: Van Niekerk, Lara ; Taljaard, Susan ; Lamberth, SJ ; Adams, JB ; Weerts, Steven P ; MacKay, CF Date: May 2022 Globally, the ability of estuaries to sustain functionality and productivity is deteriorating rapidly under ever-increasing anthropogenic pressures. We present a systematic approach to identify, characterise and rank global pressures affecting ... Read more
Effective management of closed hypereutrophic estuaries requires catchment-scale interventions

Author: Lemley, DA ; Lamberth, SJ ; Manuel, W ; Nunes, M ; Rishworth, GM ; Van Niekerk, Lara ; Adams, JB Date: Jun 2021 Increased nutrient loading associated with rapid population growth is the leading cause of deteriorating water quality in urbanized estuaries globally. Small estuaries are particularly sensitive to changes when connection with the marine ... Read more
Geographic information system data considerations in the context of the enhanced bathtub model for coastal inundation

Author: Williams, LL ; Lück-Vogel, Melanie Date: Oct 2022 This study determines input data appropriateness for geographic information system-based enhanced bathtub model (eBTM) modeling of coastal inundation in an urban setting. Various tests were conducted concerning digital surface models (DSMs) ... Read more
Gone West; first observations of surf-zone diatom Anaulus australis accumulations on the West Coast

Author: Lamberth, SJ ; Bornman, TG ; Kerwath, SE ; Kock, A ; Mansfield, L ; Parker, D ; Rothman, M ; Samaai, T ; Smith, Marie E Date: Jun 2022 Surf-zone diatom Anaulus australis accumulations, recognised by brown discoloured water, are typical of long dissipative beaches on South Africa’s south and east coasts, notably those with a nutrient supply from adjacent dune-field aquifers. ... Read more
The Green Book online tool: Towards climate resilient settlements

Author: Lück-Vogel, Melanie ; Pieterse, Amy ; Van Niekerk, Cornelia W Date: Sep 2022 The Green Book is as an open-access online planning tool to support local government towards climate-resilient cities and towns in South Africa (www.greenbook.co.za). It was launched in 2019. Extensive research and development took place to ... Read more
The Green Book: Adapting settlements for the future

Author: Lück-Vogel, Melanie Date: Sep 2022 The Green Book is as an open-access online planning tool to support local government towards climate-resilient cities and towns in South Africa (www.greenbook.co.za). It was launched in 2019. Extensive research and development took place to ... Read more
Harmful algal blooms and satellite earth observation

Author: Smith, Marie E Date: Jul 2022 The southern Benguela is divided into the West Coast and the South-West Coast regions owing to a change in coastline orientation at Cape Point. These biogeographic regions are reflected in both the make-up and frequency of phytoplankton blooms. ... Read more
High resolution remote sensing for plumes and blooms

Author: Smith, Marie M ; Vhengani, Lufuno M Date: Feb 2023 High resolution remote sensing for plumes and blooms. Read more
An indicator-based approach for cross-realm coastal biodiversity assessments

Author: Harris, LR ; Skowno, AL ; Sink, KJ ; Van Niekerk, Lara ; Holness, SD ; Monyeki, M ; Majiedt, P Date: Oct 2022 Ecosystem status assessments are generally separated into realm-specific analyses (terrestrial, freshwater, estuarine or marine), but without integrating these into a coherent assessment of coastal biodiversity across the land-sea interface. ... Read more
The larval developmental stages of Pagellus natalensis in the nearshore waters of KwaZulu-Natal, South Africa

Author: Mabotja, M ; Harris, S ; Weerts, Steven P ; Vivier, L Date: Jan 2022 Presentation on the evaluation of plastic waste in the Durban Bay: concept design based on WILDOCEANS Blue Port project findings. Objectives of this study is to identify routes of entry of different plastic wastes into the port, their likely ... Read more
The Marine and Coastal Operations for southern Africa and the Indian Ocean: Western Indian Ocean Coral Bleaching Monitoring Service

Author: Smith, Marie E ; Mbugua, J Date: Oct 2022 The Marine and Coastal Operations for southern Africa and the Indian Ocean: Western Indian Ocean Coral Bleaching Monitoring Service Read more
A method to quantify water quality change in data-limited estuaries

Author: Taljaard, Susan ; Lemley, DA ; Van Niekerk, Lara Date: Aug 2022 Situated at the land-sea interface, estuaries are susceptible to land- and sea-based sources of pollution. Despite growing scientific evidence of deterioration in water quality, quantitative methods to translate such information in support ... Read more
Modelling compound flooding at the Breede Estuary, South Africa

Author: Kupfer, S ; Santamaria-Aguilar, S ; Van Niekerk, Lara ; Lück-Vogel, Melanie ; Vafeidis, AT Date: Oct 2020 Extreme coastal flooding along the South African coast can be caused by the co-occurrence of waves, storm surges and tides. Importantly, in low-lying areas such as estuaries, the additional influence of river discharge can further exacerbate ... Read more
A new model-based coastal retention index (CORE) identifies bays as hotspots of retention, biological production and cumulative anthropogenic pressures

Author: Pfaff, MC ; Hart-Davis, M M ; Smith, Marie E ; Veitch, J Date: Aug 2022 Retention is a key driver of biological productivity near the coast since increased concentrations of planktonic particles in retention hotspots boost local primary production, availability of particulate food and larval recruitment. Known ... Read more

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