Invasive Rainbow Trout (Oncorhynchus mykiss) Are Not Affected by Different Land Uses in a Multi-Use, Mediterranean Climate Landscape

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ID: 12865
2018
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Abstract
Land use carries implications for freshwater fish conservation. Plantation forestry practices have been shown to have negative impacts on resident fish fauna, but little work has been conducted to assess these impacts on invasive vs. native fish populations. Ten headwater catchments in the Mediterranean climate zone of Chile were used to assess the impacts of land use (pine plantations vs. native forests) on fish condition (length-weight relationship) and abundance (catch-per-unit-effort (CPUE)) of the invasive trout Oncorhynchus mykiss and the threatened native catfish Nematogenys inermis. Negative impacts on trout condition were associated with a lack of canopy cover and river topology. The presence of N. inermis was associated with catchment factors less favourable to trout. Current environmental regulations and forestry management practices do not appear to create negative pressures on invasive trout from land use practices, despite expectations from the literature. Assessing how land use management regulations impact invasive and native fishes should be a part of species conservation and territorial planning.
Reference Key
lacy2018invasivefishes Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Lacy, Shaw;Ugalde, Fernando;Mao, Luca;
Journal fishes
Year 2018
DOI
DOI not found
URL
http://www.mdpi.com/2410-3888/3/4/37
Keywords
landscape management control of invasive trout headwaters native fish conservation

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