Ecology and economics of fish kills: mortality and recovery of brown trout (&lt;em&gt;Salmo trutta&lt;/em&gt; L.) and Atlantic salmon (&lt;em&gt;Salmo salar&lt;/em&gt; L.) in an Irish river

T, King

doi:10.3318/bioe.2015.16

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…A range of economic analyses can financially value these aspects (e.g. Zhang and Li 2005;King 2015).…”

Section: The Values Of Fishesmentioning

confidence: 99%

Key steps to improve the assessment, evaluation and management of fish kills: lessons from the Murray–Darling River system, Australia

Koehn

2021

Mar. Freshwater Res.

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Fish kills are very visible, with high levels of public scrutiny and major effects on populations. In 2018-19, extensive fish kills in the lower Darling River, south-eastern Australia, resulted in the deaths of millions of fish, including threatened and popular, iconic angling and important cultural species. This distressed local communities and the broader Australian society, who questioned the competence of fish and water management. Fish kills are increasing in frequency and severity, exacerbated by climate change. This paper reports on eight major fish-kill case studies across the Murray-Darling Basin that were examined to assess management adequacy. Field assessments and reporting have been poor, not documenting all species or numbers affected. Few values of fishes (cultural, conservation, recreational, social, ecological, economic) have been assessed and replacement or management costs not determined. There is a need to philosophically change our approach to take fish kills more seriously. More comprehensive approaches to assessment, evaluation and management are needed. Responsibilities for fish kills should be clarified and include water and habitat management agencies. Post-kill recovery plans that include the replacement of lost ecological assets should be published and enacted. This paper provides a fresh perspective on fish kills, with 15 key recommendations applicable to improve future management worldwide.

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“…A range of economic analyses can financially value these aspects (e.g. Zhang and Li 2005;King 2015).…”

Section: The Values Of Fishesmentioning

confidence: 99%

Key steps to improve the assessment, evaluation and management of fish kills: lessons from the Murray–Darling River system, Australia

Koehn

2021

Mar. Freshwater Res.

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“…The relative paucity of scientific studies that evaluate potential investigatory methods or describe fish kill dynamics is a significant challenge to this management process. Fish kills are temporally and spatially unpredictable, and the undesirable losses thereof generally restricts the study of fish kill dynamics and subsequent recovery patterns to opportunistic investigations for which pre‐kill baseline data are available (Kennedy et al., ; King, ). A review of fish kill related literature concluded that few studies have evaluated the different approaches for assessing mortality incidents and that more experimental work was urgently required, to improve understanding of fish kill dynamics and assessment (La & Cooke, ).…”

Section: Introductionmentioning

confidence: 99%

An assessment of carcass counting surveys with increasing time lapse following a simulated fish kill on a small upland stream

Kennedy

Allen

Rosell

et al. 2017

Fisheries Management Eco

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A simulated fish kill was conducted on a small upland stream in Northern Ireland by planting out hatchery‐produced brown trout Salmo trutta L. carcasses of various size categories. Standard, post‐fish kill, assessment walkover surveys were conducted over time intervals to determine the number of carcasses visible. The sample variance between individual surveyors was generally low, with good agreement between the observed counts for the three, discrete, size fractions of fish up to 72 hr after the simulated fish kill. Despite low discharge rates, shallow water and good accessibility to the experimental stream, only 52% of the small category fish (<8 cm LF) were recorded 4 hr after the start of the simulated fish kill. Larger carcasses (>17 cm LF) were more visible, and >90% were detected 48 hr after the start of the simulated fish kill. After 96 hr, all size fractions of carcasses had reduced significantly, and the variability between replicate surveys increased markedly.

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Economic impact of disease on small-scale catfish farms in Nigeria

2023

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Ecology and economics of fish kills: mortality and recovery of brown trout (<em>Salmo trutta</em> L.) and Atlantic salmon (<em>Salmo salar</em> L.) in an Irish river

Cited by 4 publications

References 15 publications

Key steps to improve the assessment, evaluation and management of fish kills: lessons from the Murray–Darling River system, Australia

Key steps to improve the assessment, evaluation and management of fish kills: lessons from the Murray–Darling River system, Australia

An assessment of carcass counting surveys with increasing time lapse following a simulated fish kill on a small upland stream

Economic impact of disease on small-scale catfish farms in Nigeria

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