Trialling tools using hand-weeding, weed mat and artificial shading to control nuisance macrophyte growth at multiple scales in small agricultural waterways

Collins, Katie; Febria, Catherine M.; Devlin, Hayley S.; Hogsden, Kristy L.; Warburton, Helen J.; Goeller, Brandon C.; McIntosh, Angus R.; Harding, Jon S.

doi:10.1080/00288330.2020.1722185

Cited by 6 publications

(6 citation statements)

References 21 publications

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“…Physical control entails the mechanical inhibition, removal, or elimination of toxic cyanobacteria [23]. The use of plankton nets, hand-removal, and coagulants falls within this category [24,25], as do dam operations in reservoirs (hydrologic control, flushing [20,26]). Physical control methods also include alteration of the habitat to make it unfavorable for cyanobacterial survival and proliferation.…”

Section: Control Methodsmentioning

confidence: 99%

“…Physical control methods also include alteration of the habitat to make it unfavorable for cyanobacterial survival and proliferation. For instance, artificial shading [24,27], pressurization [28], and physical aeration, nanobubble ozonation, or sonication/ultrasound/acoustic cavitation [29][30][31] can be used to physically suppress or damage cyanobacterial cells, and the capping and dredging of aquatic soil and sediment can be used to reduce pre-existing nutrient loads and viable toxic cyanobacterial dormant stages [32][33][34]. Potentially, these methods can be automated or otherwise improved using recent advances in robotic technology and artificial intelligence, such as low-cost unmanned surface vehicles equipped with active suction pumps and mesh-based algae filtration systems [35].…”

Section: Control Methodsmentioning

confidence: 99%

“…Physical cont removal, or elimination of toxic cyanobacteria [23] moval, and coagulants falls within this category [2 voirs (hydrologic control, flushing [20,26]). Physical tion of the habitat to make it unfavorable for cyano For instance, artificial shading [24,27], pressurizatio bubble ozonation, or sonication/ultrasound/acoust physically suppress or damage cyanobacterial cell aquatic soil and sediment can be used to reduce p toxic cyanobacterial dormant stages [32][33][34]. Potentia or otherwise improved using recent advances in ro gence, such as low-cost unmanned surface vehicles and mesh-based algae filtration systems [35].…”

Section: Control Methodsmentioning

confidence: 99%

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Incorporating Microbial Species Interaction in Management of Freshwater Toxic Cyanobacteria: A Systems Science Challenge

Banerji

Benesh

2022

Ecologies

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Water resources are critically important, but also pose risks of exposure to toxic and pathogenic microbes. Increasingly, a concern is toxic cyanobacteria, which have been linked to the death and disease of humans, domesticated animals, and wildlife in freshwater systems worldwide. Management approaches successful at reducing cyanobacterial abundance and toxin production have tended to be short-term solutions applied on small scales (e.g., algaecide application) or solutions that entail difficult multifaceted investments (e.g., modification of landscape and land use to reduce nutrient inputs). However, implementation of these approaches can be undermined by microbial species interactions that (a) provide toxic cyanobacteria with protection against the method of control or (b) permit toxic cyanobacteria to be replaced by other significant microbial threats. Understanding these interactions is necessary to avoid such scenarios and can provide a framework for novel strategies to enhance freshwater resource management via systems science (e.g., pairing existing physical and chemical approaches against cyanobacteria with ecological strategies such as manipulation of natural enemies, targeting of facilitators, and reduction of benthic occupancy and recruitment). Here, we review pertinent examples of the interactions and highlight potential applications of what is known.

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Section: Control Methodsmentioning

confidence: 99%

Section: Control Methodsmentioning

confidence: 99%

Section: Control Methodsmentioning

confidence: 99%

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Incorporating Microbial Species Interaction in Management of Freshwater Toxic Cyanobacteria: A Systems Science Challenge

Banerji

Benesh

2022

Ecologies

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“…Technological advances in precision agriculture and remote sensing and sensor technology could significantly reduce the use of water, pesticides, and synthetic fertilizers required to maximize crop yields (SDGs 6 and 15). In conjunction with engineering solutions, such as denitrification bioreactors (Goeller et al, 2019), two‐stage agricultural ditches (Roley et al, 2016), and functional approaches to riparian buffers to support both farming and biodiversity (e.g., Collins et al, 2020), such efforts could greatly reduce off‐site movement of pollutants improving water quality in agricultural landscapes (SDGs 2, 6, and 15).…”

Section: Parsing Transformative Change: the Environmental Benefits Of...mentioning

confidence: 99%

The sustainable agriculture imperative: A perspective on the need for an agrosystem approach to meet the United Nations Sustainable Development Goals by 2030

Shahmohamadloo

Febria

Fraser

et al. 2021

Integr Envir Assess & Manag

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The development of modern, industrial agriculture and its high input–high output carbon energy model is rendering agricultural landscapes less resilient. The expected continued increase in the frequency and intensity of extreme weather events, in conjunction with declining soil health and biodiversity losses, could make food more expensive to produce. The United Nations has called for global action by establishing 17 sustainable development goals (SDGs), four of which are linked to food production and security: declining biodiversity (SDG 15), loss of ecosystem services and agroecosystem stability caused by increasing stress from food production intensification and climate change (SDG 13), declining soil health caused by agricultural practices (SDGs 2 and 6), and dependence on synthetic fertilizers and pesticides to maintain high productivity (SDG 2). To achieve these SDGs, the agriculture sector must take a leading role in reversing the many negative environmental trends apparent in today's agricultural landscapes to ensure that they will adapt and be resilient to climate change in 2030 and beyond. This will demand fundamental changes in how we practice agriculture from an environmental standpoint. Here, we present a perspective focused on the implementation of an agrosystem approach, which we define to promote regenerative agriculture, an integrative approach that provides greater resilience to a changing climate, reverses biodiversity loss, and improves soil health; honors Indigenous ways of knowing and a holistic approach to living off and learning from the land; and supports the establishment of emerging circular economies and community well‐being. Integr Environ Assess Manag 2022;18:1199–1205. © 2021 SETAC

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“…A third group of papers concerns the effects of land use on ecological conditions and Māori values in rivers, using cyanobacteria, invertebrate communities, and cultural health metrics to quantify those effects (Crow et al 2020;Graham and Quinn 2020;Wood et al 2020). A fourth group concerns the effectiveness of erosion control and non-native macrophyte control as mitigation strategies (Basher et al 2020;Collins et al 2020). The final two papers concern land and water management across New Zealand.…”

mentioning

confidence: 99%

Preface: land-use impacts on aquatic ecosystems - tribute to John Quinn

Larned

Collier

Howard‐Williams

2020

New Zealand Journal of Marine and Freshwater Research

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Following the completion of his PhD in 1985 on the effects of wastewater discharges to the Manawatu River, John spent his entire career as an applied scientist, science leader and mentor at NIWA and its predecessors, the Department of Scientific and Industrial Research and the Ministry of Works and Development's Water Quality Centre. From 2015-2018, John was NIWA's Chief Scientist -Freshwater and Estuaries. Among other accolades, John was awarded the New Zealand Freshwater Sciences Society Medal of Excellence in 2018 for outstanding contributions to freshwater science.During his career, John contributed to and led research programmes across a wide range of freshwater issues, including integrated catchment management, ecological restoration, and land-use effects on freshwater ecosystems. This diverse body of work has provided underpinning science for catchment and regional land and water plans, forestry and dairy best-management practices, national environmental standards, riparian management guidelines, and environmental monitoring and reporting procedures. He has an international reputation for long-term studies that have contributed to our understanding of human impacts on freshwater ecosystems.The papers in this issue address one of John's areas of expertise, the effects of land-use on aquatic ecosystems. We selected land-use to provide a focal point for the contributing authors, but land-use effects are also some of the most complex and challenging problems for environmental science and management in New Zealand. Indeed, most of the freshwater policies and regulations promulgated in New Zealand over the last 20 years concern adverse impacts of land use. John contributed to the development of this legislation, most notably the National Environmental Standards for Plantation Forestry 2017, for which he served on the water advisory group. The work of that group drew strongly on two research programmes that John initiated and led: riparian buffers for reducing the impacts of forest clear-felling, and the roles of forestry and pastoral agriculture in catchment management at the Whatawhata Research Centre in the Mangaotama

show abstract

Trialling tools using hand-weeding, weed mat and artificial shading to control nuisance macrophyte growth at multiple scales in small agricultural waterways

Cited by 6 publications

References 21 publications

Incorporating Microbial Species Interaction in Management of Freshwater Toxic Cyanobacteria: A Systems Science Challenge

Incorporating Microbial Species Interaction in Management of Freshwater Toxic Cyanobacteria: A Systems Science Challenge

The sustainable agriculture imperative: A perspective on the need for an agrosystem approach to meet the United Nations Sustainable Development Goals by 2030

Preface: land-use impacts on aquatic ecosystems - tribute to John Quinn

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