Degerman, Erik
- Institutionen för akvatiska resurser (SLU Aqua), Sveriges lantbruksuniversitet
Sammanfattning
The European eel Anguilla anguilla Linnaeus 1758 is critically endangered with recruitment estimated at 5-10% of historical levels. Enhancing survival of recruits is pivotal for conservation, and restoration should consider habitat choice of elvers ascending river systems. We experimentally show that newly ascended elvers choose small pebble habitat over finer and larger substrates, regardless of the presence or absence of piscivore chemical cues, indicating no predator-induced change in substrate choice. Enriching habitats with this substrate fraction should enhance eel recruitment as well as biodiversity at large.
Nyckelord
chemical cues; European eel; habitat choice; predator-prey; substrate size
Publicerad i
Journal of Fish Biology
2020, volym: 96, nummer: 6, sidor: 1534-1537
Utgivare: WILEY
SLU författare
UKÄ forskningsämne
Vilt- och fiskeförvaltning
Publikationens identifierare
- DOI: https://doi.org/10.1111/jfb.14343
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/105410