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Studies of the efficiency vs. the cost of long-term biological monitoring strategies are particularly infrequent and needed in large rivers. We used recent studies concerning the long-term monitoring of fish and macroinvertebrates in the Rhône River to discuss the potential and limits of monitoring strategies in large rivers and other environments. A first study is a numerical analysis of the probability to detect changes in fish abundance after flow restoration in the river. A second study concerns the detection of "most expected" relationships in annual fish time series, such as fish cohort follow-ups. It involves a comparison of the Rhône results with those obtained in smaller rivers (where sampling is easier) or in the ocean (where sampling is even more difficult). Results indicate that the long-term biological strategies used in the Rhône River are efficient for detecting major inter-annual trends, but are limited for detecting annual events. Such studies apply to other systems than large rivers and we hope that they will contribute to an increased efficiency and a reduced cost of monitoring strategies.

Pertenece a

ArchiMer, Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea)  


Lamouroux, N -  Cauvy -  fraunie, S -  Vaudor, L. -  Olivier, J.m -  Trenkel, Verena -  Maire, A -  Forcellini, M -  Roset, N - 

Id.: 71394655

Idioma: fre  -  eng  - 

Versión: 1.0

Estado: Final

Tipo:  application/pdf - 

Palabras claveAbundance time series - 

Tipo de recurso: Texto Narrativo  -  Conference article  -  info:eu-repo/semantics/conferenceObject  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: info:eu-repo/semantics/openAccess

Formatos:  application/pdf - 

Requerimientos técnicos:  Browser: Any - 

Fecha de contribución: 12-jun-2018



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