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Newport Research Facility, Annual Report No. 69, 2024

Marine Institute
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Keywords
Atlantic salmon (Salmo salar)
 Annual Report
 Long‑term data series
 Eel fisheries (Anguilla anguilla)
 Environmental monitoring
 Fish population dynamics
Date
2025-12
Publisher
Marine Institute
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Annual Reports
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Newport Annual Report 2024 Final.pdf
Adobe PDF, 5.06 MB
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Abstract
The Burrishoole Annual Report 2024 provides an overview of environmental conditions, fish stock dynamics and research activities within the Burrishoole catchment, continuing a long‑term dataset spanning nearly seven decades. Rainfall patterns in 2024 were marked by unusually wet winter and late‑summer periods, alongside prolonged dry spells in spring and early autumn. Environmental monitoring showed cooler summer water temperatures and persistently warm winter conditions, consistent with broader climatic trends. Wild salmon returns improved, with 589 grilse recorded—the strongest since 2020—while smolt output declined to 5,870, though marine survival increased to 7.4%. Sea trout stocks remained low, with 29 silvered fish and 188 smolts, continuing long‑term declines. The silver eel run totalled 3,069 individuals, with a pronounced migration peak in October. Electrofishing surveys indicated stable juvenile salmonid densities and sustained higher‑than‑average eel densities. The report documents continued expansion of collaborative research, including climate‑related studies, genetics, aquaculture innovation, and freshwater pearl mussel conservation.
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https://oar.marine.ie/handle/10793/2084
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Marine Institute (2025). Newport Research Facility, Annual Report No. 69, 2024.
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