Surviving Invasion: Regaining Native Fish Resilience Following Fish Invasions in a Modified Floodplain Landscape

Pingram, Michael A.; Collier, Kevin J.; Williams, A. K.; David, Bruno; Garrett‐Walker, Jeremy; Górski, Konrad; Özkundakci, Deniz; Ryan, E.F.

doi:10.1029/2020wr029513

Cited by 4 publications

(1 citation statement)

References 117 publications

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“…In NZ, such interactions have not been widely studied for large floodplain rivers (but see Collier et al 2019), although work undertaken in streams has highlighted the potential for interactions between water contaminants and increased water temperatures to affect invertebrate and periphyton communities in complex ways, with synergistic interactions possible (Piggott et al 2012(Piggott et al , 2015. For large rivers in the North Island such as the Waikato River, water contaminants and climate change are expected to interact synergistically to enhance the colonisation of invasive fish species such as cyprinids and Gambusia affinis that are tolerant of poor water quality and increased water temperatures (Collier et al 2015;Pingram et al 2021).…”

Section: Drivers: Root Causes Of Impactsmentioning

confidence: 99%

Large floodplain river restoration in New Zealand: synthesis and critical evaluation to inform restoration planning and research

Abell¹,

Pingram

Özkundakci

et al. 2022

Reg Environ Change

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New Zealand (NZ) has a diversity of large river ecosystems that provide essential ecosystem services but are impaired by multiple ecological impacts. River restoration is an active field worldwide and there is good potential for river restoration practitioners in NZ to draw on lessons from elsewhere, although there is also a need to tailor approaches to national and local contexts. Here, we provide a critical review of large floodplain river restoration to guide environmental management in NZ and inform research and management priorities. The review is structured using a driver-pressure-state-impact-response framework, with a focus on responses, i.e. large river restoration methods. Thirty-one river restoration methods aligned with 14 broad restoration goals were evaluated collaboratively and semi-quantitatively. Evaluation outcomes are presented to inform regional and national scale restoration planning. Recommendations were identified to address eight key knowledge or policy gaps: (1) understanding cumulative impacts facing large river systems, (2) prioritising restoration measures at the landscape-scale, (3) promoting lateral connectivity in large river floodplains, (4) incorporating knowledge of geomorphology into river management, (5) enhancing understanding of cultural priorities and community aspirations, (6) assessing how costs and benefits of river restoration vary among timescales, (7) understanding the feasibility of restoration methods that have received limited application in NZ and (8) improving protection of threatened native fish species.

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Section: Drivers: Root Causes Of Impactsmentioning

confidence: 99%

Large floodplain river restoration in New Zealand: synthesis and critical evaluation to inform restoration planning and research

Abell¹,

Pingram

Özkundakci

et al. 2022

Reg Environ Change

Self Cite

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First observations and early life-history aspects of lake rearing galaxiid larvae in the lower Waikato River Basin, New Zealand

David

Jarvis

Özkundakci

et al. 2022

New Zealand Journal of Marine and Freshwater Research

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Future-proofing the emergency recovery plan for freshwater biodiversity

et al. 2023

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Freshwater biodiversity loss is accelerating globally, but humanity can change this trajectory through actions that enable recovery. To be successful, these actions require coordination and planning at a global scale. The Emergency Recovery Plan for global freshwater biodiversity aims to reduce the risk for freshwater biodiversity loss through six priority actions: 1) accelerate implementation of environmental flows; 2) improve water quality to sustain aquatic life; 3) protect and restore critical habitats; 4) manage exploitation of freshwater species and riverine aggregates; 5) prevent and control nonnative species invasions in freshwater habitats; and 6) safeguard and restore freshwater connectivity. These actions can be implemented using future-proofing approaches that anticipate future risks (e.g., emerging pollutants, new invaders, synergistic effects) and minimize likely stressors to make conservation of freshwater biodiversity more resilient to climate change and other global environmental challenges. While uncertainty with respect to past observations is not a new concern for freshwater biodiversity, future-proofing has the distinction of accounting for the uncertainty of future conditions that have no historical baseline. The level of uncertainty with respect to future conditions is unprecedented. Future-proofing of the Emergency Recovery Plan for freshwater biodiversity will require anticipating future changes and developing and implementing actions to address those future changes. Here, we showcase future-proofing approaches likely to be successful using local case studies and examples. Ensuring that response options within the Emergency Recovery Plan are future-proofed will provide decision-makers with science-informed choices, even in the face of uncertain and potentially new future conditions. We are at an inflection point for global freshwater biodiversity loss; learning from defeats and successes can support improved actions towards a sustainable future.

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Surviving Invasion: Regaining Native Fish Resilience Following Fish Invasions in a Modified Floodplain Landscape

Cited by 4 publications

References 117 publications

Large floodplain river restoration in New Zealand: synthesis and critical evaluation to inform restoration planning and research

Large floodplain river restoration in New Zealand: synthesis and critical evaluation to inform restoration planning and research

First observations and early life-history aspects of lake rearing galaxiid larvae in the lower Waikato River Basin, New Zealand

Future-proofing the emergency recovery plan for freshwater biodiversity

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