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Substrate-size choice in European eel (Anguilla anguilla) elvers is not altered by piscivore chemical cues

Nilsson, P. Anders LU orcid ; Pettersson, Ivi J. ; Tamario, Carl ; Degerman, Erik ; Elghagen, Jonas ; Watz, Johan and Calles, Olle (2020) In Journal of Fish Biology p.1534-1537
Abstract

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.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
chemical cues, European eel, habitat choice, predator–prey, substrate size
in
Journal of Fish Biology
pages
4 pages
publisher
Wiley-Blackwell
external identifiers
  • scopus:85083803838
  • pmid:32278333
ISSN
0022-1112
DOI
10.1111/jfb.14343
language
English
LU publication?
yes
id
aac17514-dbd5-4c6c-9719-f7550eabbbec
date added to LUP
2020-05-28 17:15:40
date last changed
2024-10-03 02:29:28
@article{aac17514-dbd5-4c6c-9719-f7550eabbbec,
  abstract     = {{<p>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.</p>}},
  author       = {{Nilsson, P. Anders and Pettersson, Ivi J. and Tamario, Carl and Degerman, Erik and Elghagen, Jonas and Watz, Johan and Calles, Olle}},
  issn         = {{0022-1112}},
  keywords     = {{chemical cues; European eel; habitat choice; predator–prey; substrate size}},
  language     = {{eng}},
  pages        = {{1534--1537}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Journal of Fish Biology}},
  title        = {{Substrate-size choice in European eel (Anguilla anguilla) elvers is not altered by piscivore chemical cues}},
  url          = {{http://dx.doi.org/10.1111/jfb.14343}},
  doi          = {{10.1111/jfb.14343}},
  year         = {{2020}},
}