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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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.

Detaljer

Författare
  • P. Anders Nilsson
  • Ivi J. Pettersson
  • Carl Tamario
  • Erik Degerman
  • Jonas Elghagen
  • Johan Watz
  • Olle Calles
Enheter & grupper
Externa organisationer
  • Karlstad University
  • Lund University
  • Linnaeus University
  • Swedish University of Agricultural Sciences
  • Elghagen Fiskevård
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Ekologi
  • Miljö- och naturvårdsvetenskap

Nyckelord

Originalspråkengelska
Sidor (från-till)1534-1537
Antal sidor4
TidskriftJournal of Fish Biology
Tidigt onlinedatum2020 apr 11
StatusPublished - 2020 jun
PublikationskategoriForskning
Peer review utfördJa