Browsing Research Publications/Outputs by Author "Lamberth, SJ"

Now showing items 1-13 of 13

Assessment of the conservation priority status of South African estuaries for use in management and water allocation

Author: Turpie, JK ; Adams, JB ; Joubert, A ; Harrison, TD ; Colloty, BM ; Maree, RC ; Whitfield, AK ; Wooldridge, TH ; Lamberth, SJ ; Taljaard, Susan ; Van Niekerk, Lara Date: Apr 2002 The future health and productivity of South Africa's approximately 250 estuaries is dependent on two main factors; management and freshwater inputs. Both management and water allocation decisions involve trade-offs between conservation and ... Read more
Country-wide assessment of estuary health: An approach for integrating pressures and ecosystem response in a data limited environment

Author: Van Niekerk, Lara ; Adams, JB ; Bate, GC ; Forbes, AT ; Forbes, NT ; Huizinga, P ; Lamberth, SJ ; MacKay, CF ; Petersen, C ; Taljaard, Susan ; Weerts, Steven P ; Whitfield, AK ; Wooldridge, TH Date: Sep 2013 Population and development pressures increase the need for proactive strategic management on a regional or country-wide scale - reactively protecting ecosystems on an estuary-by-estuary basis against multiple pressures is ‘resource hungry’ ... 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
An environmental flow determination method for integrating multiple-scale ecohydrological and complex ecosystem processes in estuaries

Author: Van Niekerk, Lara ; Taljaard, Susan ; Adams, JB ; Lamberth, SJ ; Huizinga, P ; Turpie, JK ; Wooldridge, TH Date: Mar 2019 This paper presents an environmental flow methodology that was developed to accommodate shallow, highly dynamic micro-tidal estuaries found along the wave-dominated coast of South Arica. This method differs to most other approaches that ... Read more
Estuaries

Author: Van Niekerk, Lara ; De Villiers, P ; Gordon, A ; Lamberth, SJ ; Adams, J ; Yumat, Z ; Olds, A Date: Nov 2017 This is the second report on estuaries in the Western Cape State of Biodiversity Report series. Estuaries from an integral part in the ecosystem connectivity between terrestrial systems, freshwater aquatic processes, and the ocean and cannot ... 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
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
High flow variability and storm events shape the ecology of the Mbhashe Estuary, South Africa

Author: James, NC ; Adams, JB ; Connell, AD ; Lamberth, SJ ; MacKay, CF ; Snow, GC ; Van Niekerk, Lara ; Whitfield, AK Date: Mar 2020 The possible impacts of extreme events on the ecology of selected aquatic biota within the Mbhashe Estuary were investigated during a four year (2010–2013) spring sampling programme. During periods of low to average flow conditions the estuary ... Read more
Knysna Estuary health: ecological status, threats and options for the future

Author: Claassens, L ; Barnes, RSK ; Wasserman, J ; Lamberth, SJ ; Miranda, AF ; Van Niekerk, Lara ; Adam, JB Date: Mar 2020 The Knysna Estuary is South Africa's most important estuary in terms of conservation, containing an estimated 42% of all estuarine biodiversity. Despite formal protection the estuary is open access and vulnerable to resource exploitation, ... Read more
National Wetland Map 5: An improved spatial extent and representation of inland aquatic and estuarine ecosystems in South Africa

Author: Van Deventer, Heidi ; Van Niekerk, Lara ; Adams, J ; Dinala, MK ; Gangat, R ; Lamberth, SJ ; Lotter, M ; Mbona, N ; MacKay, F ; Nel, JL ; Ramjukadh, CL ; Skowno, A ; Weerts, Steven P Date: Jan 2020 The improved representation of freshwater and estuarine ecosystems and associated data was a key component of the 2018 National Biodiversity Assessment, and is an essential step in enhancing defensible land use planning and decision making. ... Read more
Possible impacts of non-native plant, pathogen, invertebrate and fish taxa on the indigenous ichthyofauna in South African estuaries: A preliminary review

Author: Whitfield, AK ; Adams, JB ; Harrison, TD ; Lamberth, SJ ; Lemley, DA ; Mackay, F ; Van Niekerk, Lara ; Weyl, Olf Date: Apr 2021 We review the possible impacts of non-native biota on the indigenous fishes of South African estuaries, including macrophytes, algae, pathogens, invertebrates, and fishes. Freshwater macrophytes are one of the primary non-native groups in the ... Read more
The vulnerability of South African estuaries to climate change: A review and synthesis

Author: Van Niekerk, Lara ; Lamberth, SJ ; James, NC ; Taljaard, Susan ; Adams, JB ; Theron, AK ; Krug, M Date: Aug 2022 This review evaluates the vulnerability of South African estuaries to Climate Change in a data-limited environment. The regional-scale assessment is based on physical characteristics and predicted/measured changes in the abiotic drivers and ... Read more

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Browsing Research Publications/Outputs by Author "Lamberth, SJ"

Browsing Research Publications/Outputs by Author "Lamberth, SJ"

Browse

All of ResearchSpace

This Community

Quick Links

Legislation and compliance

General Enquiries

Social Connect