The changing times of Europe's largest remaining commercially harvested population of eel Anguilla anguilla L.

ABSTRACT: This study quantifies the processes involved in regulating the European eel population of Lough Neagh, a lake in Northern Ireland. The relationship between glass eel input and silver eel output for the 1923-1997 cohorts was best described by a Beverton-Holt stock recruitment model. Glass eel input time series was not complete and was thus derived from the relationship between catches elsewhere in Europe and Lough Neagh, together with the addition of stocked glass eel. Silver eel output was the sum of silver eel escapement, catch and yellow eel catch converted to silver eel equivalents. Natural mortality increased with glass eel density, ranging from 0.017 to 0.142 year^-1 . The mean carrying capacity increased from ≈3.25 M silver eels (≈26 kg ha^-1 ) for the 1923-1943 c

SUBMITTER: Aprahamian MW 

PROVIDER: S-EPMC9543196 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature