Back to Search
Start Over
Assessing the freshwater distribution of yellow eel
- Source :
- Knowledge and Management of Aquatic Ecosystems, Iss 390-391, p 04 (2008)
- Publication Year :
- 2008
- Publisher :
- EDP Sciences, 2008.
-
Abstract
- In the global context of the decline in wild species, modeling the distribution of populations is a crucial aspect of ecological management. This can be a major challenge, especially for species, such as the European eel, that have complex life cycles, exhibit cryptic behavior, or migrate over long distances. A review of the literature suggests that eel size data could be used to assess and analyze freshwater distribution of eel. We argue that analyses based on small yellow eels (≤ 300 mm) along the longitudinal course of rivers could provide a valuable tool for population monitoring. We propose a standardized catchment recruitment index and a colonization index based on the probability of occurrence (presence/absence data) using logistic models for different size classes. The model developed here provides a convenient guide for assessing yellow eel stages in freshwater areas, and should have concrete applications for management of the species.
Details
- Language :
- English
- ISSN :
- 19619502
- Issue :
- 390-391
- Database :
- Directory of Open Access Journals
- Journal :
- Knowledge and Management of Aquatic Ecosystems
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.bfba993fd3ea477a9dbb01730ad6606a
- Document Type :
- article