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Browsing Journal Articles by Impact Area "Coastal Systems"

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Adapting environmental management systems for African ports

Author: Arabi, Sumaiya ; Taljaard, Susan ; Weerts, Steven P Date: Mar 2022 Globally sustainable environmental practices in ports have been linked to socio-economic benefits. While African ports are increasingly acknowledging environmental issues and starting to address these in environmental policy, many are still ... Read more
Advancing the science of environmental flow management for protection of temporarily closed estuaries and coastal lagoons

Author: Stein, ED ; Gee, EM ; Adams, JB ; Irving, K ; Van Niekerk, Lara Date: Feb 2021 The science needed to inform management of environmental flows to temporarily closed estuaries and coastal lagoons is decades behind the state of knowledge for rivers and large embayments. These globally ubiquitous small systems, which are ... Read more
Blue carbon sinks in South Africa and the need for restoration to enhance carbon sequestration

Author: Raw, JL ; Van Niekerk, Lara ; Chauke, O ; Riddin, T ; Adams, JB Date: Feb 2023 Blue carbon ecosystems (mangroves, salt marshes, and seagrasses) contribute towards climate change mitigation because they are efficient at sequestering atmospheric CO2 into long-term total ecosystem carbon stocks. Destruction or disturbance ... Read more
Chapter 1: Introduction

Author: Slinger, J ; Taljaard, Susan ; D'Hont, F Date: Jan 2020 This book captures the learning from a cross-comparison of seven international inlet or estuary mouth management situations. The conceptual framing is provided by a focus on systems knowledge and its development and use within coastal management. ... Read more
Coastal management – working towards the UN’s Decade of Ocean Science for Sustainable Development (2021–2030)

Author: Taljaard, Susan ; Adams, J Date: Sep 2021 The UN declared 2021-2030 as the Decade of Ocean Science and identified research and technology priority areas to achieve the 2030 Sustainable Development Goals. We reviewed the current status of scientific support for coastal management in ... Read more
Dispersal and coastal geomorphology limit potential for mangrove range expansion under climate change

Author: Raw, JL ; Van der Stocken, T ; Carroll, D ; Harris, LR ; Rajkaran, A ; Van Niekerk, Lara ; Adams, JB Date: Nov 2022 Latitudinal range limits for mangroves on high-energy, wave-dominated coasts are controlled by geomorphological features and estuarine dynamics. Mangroves reach a southern global range limit along the South African coastline, but the distribution ... Read more
An Estuary Ecosystem Classification that encompasses biogeography and a high diversity of types in support of protection and management

Author: Van Niekerk, Lara ; Adams, JB ; James, NC ; Lamberth, SJ ; MacKay, CF ; Turpie, JK ; Rajkaran, A ; Weerts, Steven P ; Whitfield, AK Date: Mar 2020 For nearly three decades, the Whitfield (1992) characterisation scheme served as a reference framework to type South African estuaries. We outline a revised ecosystem classification scheme that incorporates biogeographical zonation and ... Read more
Fisheries Support through OCIMS and MarCOSIO projects

Author: Smith, Marie E Date: Oct 2022 Presentation on the environmental overview, Earth Observation Product Development and National and regional initiatives supporting fisheries-National Oceans and Coastal Information Management System (OCIMS)-Marine and Coastal Operations for ... Read more
The future of aquaculture is now

Author: Lain, Elisabeth J ; Smith, Marie E Date: Nov 2021 Aquaculture in South Africa is really taking off, with around 230 farms countrywide, cultivating a wide variety of fish and shellfish species. Most of these are freshwater farms, and it is the freshwater sector that is indeed growing the ... 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
HAB detection within aquaculture industry: A case study in the Atlantic Area

Author: Guterres, B ; Sbrissa, K ; Mendes, A ; Meireles, L ; Novoveska, L ; Vermeulen, F ; Martinez, J ; Garcia, A ; Lain, Elisabeth J ; Smith, Marie E Date: Jul 2023 Fisheries and aquaculture industries notably contribute to animal-source protein production worldwide. Climate change is creating environmental conditions suitable for harmful algal blooms (HAB) on a global scale. Some phytoplankton species ... Read more
Incorporating free-flowing rivers into global biodiversity targets: Prioritization and targeted interventions to maintain ecological integrity

Author: Petersen, CR ; Van Deventer, Heidi ; Smith-Adao, Lindie B ; Nel, JL Date: Dec 2022 Free-flowing rivers (FFRs) are important surrogates for freshwater biodiversity as there are increasingly fewer rivers that reflect intact habitat and species diversity from source to sea. The status and changes in the ecological condition ... Read more
Ineffective artificial mouth-breaching practices and altered hydrology confound eutrophic symptoms in a temporarily closed estuary

Author: Nel, M ; Adams, JB ; Human, LRD ; Nunes, M ; Van Niekerk, Lara ; Lemley, DA Date: Dec 2023 Context: Artificial breaching of intermittently closed estuaries has become more frequent in the face of global-change pressures. Aims: This study aimed to determine whether the ecological health of the Great Brak Estuary has been affected ... Read more
Inorganic nutrient removal efficiency of a constructed wetland before discharging into an urban eutrophic estuary

Author: Lemley, D ; Lekane, CP ; Taljaard, Susan ; Adams, JB Date: Jun 2022 This study investigated the nutrient removal efficiency of a constructed wetland (CW) piloted to treat urban runoff before entering an estuary. Physico-chemical, dissolved inorganic nutrient (DIN and DIP), and stormwater inflow volume data ... Read more
An intercomparison of global reanalysis products for Southern Africa’s major oceanographic features

Author: Russo, C ; Veitch, J ; Carr, M ; Fearon, G ; Whittle, Christo P Date: Mar 2022 A regional assessment of three global ocean reanalysis products is presented for southern Africa’s major oceanographic features. The reanalyses include Mercator Ocean’s Global Reanalysis (GLORYS), the Commonwealth Scientific and Industrial ... Read more
International pellet watch: Global monitoring of polybrominated diphenyl ethers (PBDEs) in plastic resin pellets

Author: Ohgaki, T ; Takada, H ; Yoshida, R ; Mizukawa, K ; Yeo, BG ; Alidoust, M ; Hira, N ; Yamashita, R ; Tokumaru, T ; Weeerts, Steven P Date: Aug 2021 Polybrominated diphenyl ethers (PBDEs) were measured in plastic resin pellets collected from 65 beaches across 27 countries worldwide. They were detected at 49 locations at concentrations of the sum of 49 congeners of up to 46 ng/g-pellet and ... Read more
Investigating the interaction of waves and river discharge during compound flooding at Breede Estuary, South Africa

Author: Kupfer, S ; Santamaria-Aguilar, S ; Van Niekerk, Lara ; Lück-Vogel, Melanie Date: Jan 2022 Recent studies have drawn special attention to the significant dependencies between flood drivers and the occurrence of compound flood events in coastal areas. This study investigates compound flooding from tides, river discharge (Q), and ... Read more
Landsat-8 based coastal ecosystem mapping in South Africa using random forest classification in Google Earth Engine

Author: Bessinger, M ; Lück-Vogel, Melanie ; Skowno, A ; Conrad, F Date: Nov 2022 Coastlines worldwide are home to an increasing number of people and are subject to many pressures. This, combined with natural dynamics and hazards, often results in the degradation of coastal and marine ecosystems and infrastructure. Therefore, ... Read more
Negotiation of knowledge for coastal management? Reflections from a transdisciplinary experiment in South Africa

Author: Celliers, Louis ; Scott, D ; Ngcoya, M ; Taljaard, Susan Date: Sep 2021 Hybrid science-society approaches for knowledge production are often framed by a transdisciplinary approach. Most forms of “linear” progression of science informing policy or the “production” of knowledge as a one-way process are increasingly ... Read more
The not-so-easy task of taking heavy-lift ML models to the edge: A performance-watt perspective

Author: Pereira, LC ; Guterres, B ; Sbrissa, K ; Mendes, A ; Vermeulen, F ; Lain, Elisabeth J ; Smith, Marie E ; Martinez, J ; Drews, P ; Duarte, N Date: Mar 2023 Edge computing is a new development paradigm that brings computational power to the network edge through novel intelligent end-user services. It allows latency-sensitive applications to be placed where the data is created, thus reducing ... Read more

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